Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: Elevated ABHD16A triggered by ACh was associated with poor prognosis in patients with gastric cancer. A, Representative IHC images of ABHD16A expression in human normal gastric tissues and gastric cancer tissues from the TMA with magnifications of 40×, 100×, and 200×. Scale bar for 200×, 100 μm. B–D, Relationship of ABHD16A IHC score to clinical stage ( B ), pT stage ( C ), and lymph node metastasis ( n = 80; D ). E, Cumulative survival curves of patients with gastric cancer with high or low ABHD16A expression based on the TMA. F, IHC images and score of ABHD16A in S100 + or S100 − gastric cancer tissues. Scale bar, 100 μm. G, Procedure for coculture of DRG neurons and gastric cancer cells. H, Western blotting was used to analyze ABHD16A levels in MFC cells cocultured with DRG neurons or DRG neuron–derived CM. GAPDH served as the loading control. I, Expression of HIF1A and ABHD16A in neurotransmitter [HA, dopamine (DA), 5-HT, norepinephrine (NE), ACh]-treated MFC cells and ACh-treated MGC-803 cells. J, ACh concentration was detected in DRG CM by ELISA. K, Tumor volume of orthotopic gastric cancer tumors with or without vagotomy. L, Representative mIF staining images of FOXP3, CD163, CD11b, CD8, PD-L1, and Pan-CK in gastric cancer tissues with high or low expression of ABHD16A. Scale bar, 100 μm. **, P < 0.01; ***, P < 0.001; ****, P < 0.0001.

Article Snippet: For immunotherapy, anti-mouse PD-L1 antibody (100 μg/mouse, TargetMol, T78270 ), GPR34 inhibitor (GPR34 receptor antagonist 2, 20 mg/kg, MERYER, 907952), and XBP1s inhibitor (STF-083010, 30 mg/kg, MedChemExpress, HY-15845) were intraperitoneally injected once every 3 days, and ACh receptor inhibitor (darifenacin, 2.5 mg/kg, MedChemExpress, HY–A0033) was intraperitoneally injected every day after tumor formation.

Techniques: Expressing, Western Blot, Derivative Assay, Control, Concentration Assay, Enzyme-linked Immunosorbent Assay, Staining

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: ABHD16A promotes ILC3 aggregation and IL22 release in the immune microenvironment. A, A total of 5 × 10 6 MFC-luc or Abhd16a -knockdown MFC-luc cells were injected into the epidermis of the greater curvature of the stomach in the 615 mice. Tumor growth was monitored weekly through bioluminescence imaging from the first day of MFC cell inoculation. Scale bar, 2.000e+4 – 5.000e + 5 p/s/cm 2 /sr. B and C, Representative images of the excised stomachs ( B ) and the orthotopic tumor volume ( C ) on day 28 after gastric cancer cells were implanted orthotopically ( n = 9 per group). D, H&E images of the stomach, peritoneum, liver, intestine, and lung on day 42 after MFC or Abhd16a -knockdown MFC cells were implanted into 615 mice. Scale bar, 400 μm. E–G, Representative images ( E ), volume ( F ), and weight ( G ) of control and Abhd16a -knockdown subcutaneous tumors ( n = 5 per group). H, IHC images of PD-L1 in control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tissues. Scale bar, 500 μm. I, Detection of mouse cytokines in the TIF of orthotopic gastric cancer tissues by proteome profiler mouse XL cytokine array. J, Flow cytometry gating strategy and frequencies of ILC3s and Th17/Th22 cells out of CD45 + cells in control and Abhd16a -knockdown gastric cancer tissues in 615 mice. K, Flow cytometry gating strategy and frequencies of ILC3s out of ILCs in control and Abhd16a -knockdown gastric cancer tissues in Rag1 −/− mice. ***, P < 0.001.

Article Snippet: For immunotherapy, anti-mouse PD-L1 antibody (100 μg/mouse, TargetMol, T78270 ), GPR34 inhibitor (GPR34 receptor antagonist 2, 20 mg/kg, MERYER, 907952), and XBP1s inhibitor (STF-083010, 30 mg/kg, MedChemExpress, HY-15845) were intraperitoneally injected once every 3 days, and ACh receptor inhibitor (darifenacin, 2.5 mg/kg, MedChemExpress, HY–A0033) was intraperitoneally injected every day after tumor formation.

Techniques: Knockdown, Injection, Imaging, Control, Flow Cytometry

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: High expression of ABHD16A mediates the cumulative release of LysoPS into the TME. A, mIF images of the orthotopic gastric cancer (GC) tissues stained for PD-L1, RORC, and CD3. Yellow, PD-L1 + tumor cells; red, RORC + ILC3s; green, CD3 + cells. Scale bars, 100 μm (left) and 25 μm (right). B and C, Flow cytometry gating strategy and frequencies of ILC3s ( B ) and proportions of ILC3s in total CD45 + cells ( C ) isolated from control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tissues ( n = 3 per group). D and E, Flow cytometry gating strategy and frequencies of ILC3s ( D ) and proportions of ILC3s in total CD45 + cells ( E ) derived from the peripheral blood of healthy controls (HC) and patients with gastric cancer ( n = 8 per group). F and G, LC-MS/MS analysis of 18:0 and 18:1 LysoPS in the control and Abhd16a -knockdown orthotopic ( F ) and subcutaneous ( G ) gastric cancer tissues ( n = 3 per group). H–J, ELISA was used to measure levels of LysoPS in gastric cancer cell supernatant ( H ), TIF ( I ), and in vitro tumor culture supernatant ( J ) of control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tumors ( n = 3 per group). K, LysoPS levels in the serum of healthy controls and patients with gastric cancer detected by ELISA. *, P < 0.05; **, P < 0.01; ***, P < 0.001.

Article Snippet: For immunotherapy, anti-mouse PD-L1 antibody (100 μg/mouse, TargetMol, T78270 ), GPR34 inhibitor (GPR34 receptor antagonist 2, 20 mg/kg, MERYER, 907952), and XBP1s inhibitor (STF-083010, 30 mg/kg, MedChemExpress, HY-15845) were intraperitoneally injected once every 3 days, and ACh receptor inhibitor (darifenacin, 2.5 mg/kg, MedChemExpress, HY–A0033) was intraperitoneally injected every day after tumor formation.

Techniques: Expressing, Staining, Flow Cytometry, Isolation, Control, Knockdown, Derivative Assay, Liquid Chromatography with Mass Spectroscopy, Enzyme-linked Immunosorbent Assay, In Vitro

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: IL22 upregulates PD-L1 expression in gastric cancer cells through the UPR IRE1α–XBP1 axis. A, mIF images show the alterations of PD-L1 + tumor cells (purple), CD4 + (green), and CD8 + (red) T cells in orthotopic gastric cancer tumors from control and Abhd16a -knockdown mice following IL22 treatment. Scale bar, 50 μm. B, KEGG pathway enrichment analysis of RNA-seq data of gastric cancer tissues with or without IL22 treatment. C, RT-PCR was used to assess the mRNA expression of key downstream molecules of the UPR branches ( XBP1 , ATF4 , ATF6 ) in control and IL22RA1 -knockdown gastric cancer cells. D, Western blotting analysis of PD-L1 and XBP1s levels in control and IL22RA1 -knockdown MGC-803 cells treated with IL22 (100 μg/L). E, Western blotting detection of PD-L1 and XBP1s levels in XBP1- knockdown MGC-803 cells treated with IL22 and MGC-803 cells treated with IL22 or XBP1s inhibitor (STF083010, 30 μmol/L) in combination with IL22. F, The binding sequence of XBP1 on the CD274 promoter. G and H, ChIP ( G ) and luciferase reporter assay ( H ) showing the transcriptional regulation of CD274 by XBP1s under IL22 stimulation. I, Orthotopic gastric cancer mouse models ( n = 5 per group) were injected with anti-IL22 (200 μg per mouse), anti-CD90.2 antibody (150 μg per mouse), anti-CD90.2 antibody in combination with IL22 (500 ng per mouse), or anti-CD90.2 antibody in combination with XBP1s inhibitors (STF083010, 30 mg/kg) and IL22 for 2 weeks. IHC analysis was used to show IL22, XBP1s, and PD-L1 levels in gastric cancer tissues. Scale bar, 200 μm. J, Tumor volume of orthotopic gastric cancer models under treatments the same as in I . *, P < 0.05; **, P < 0.01; ***, P < 0.001; ns, nonsignificant.

Article Snippet: For immunotherapy, anti-mouse PD-L1 antibody (100 μg/mouse, TargetMol, T78270 ), GPR34 inhibitor (GPR34 receptor antagonist 2, 20 mg/kg, MERYER, 907952), and XBP1s inhibitor (STF-083010, 30 mg/kg, MedChemExpress, HY-15845) were intraperitoneally injected once every 3 days, and ACh receptor inhibitor (darifenacin, 2.5 mg/kg, MedChemExpress, HY–A0033) was intraperitoneally injected every day after tumor formation.

Techniques: Expressing, Control, Knockdown, RNA Sequencing, Reverse Transcription Polymerase Chain Reaction, Western Blot, Binding Assay, Sequencing, Luciferase, Reporter Assay, Injection

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: Combination therapy enhances the anti–PD-L1 immunotherapeutic effect in gastric cancer. A and B, After tumor formation, the orthotopic gastric cancer mice ( n = 5 per group) were treated with anti–PD-L1 (100 μg per mouse), GPR34 inhibitor (20 mg/kg), or XBP1s inhibitor (30 mg/kg) every 3 days or ACh inhibitor (2.5 mg/kg) daily. Combinations of anti–PD-L1 with each inhibitor followed the every 3-day dosing schedule for a total duration of 2 weeks via i.p. injection. Living images were used to monitor tumor progression at 5-day intervals from the time of drug administration ( A ); IHC and mIF were performed to detect PD-L1 and XBP1s levels and proportions of CD4 + (green) and CD8 + (red) T cells in gastric cancer tissues at the end of treatments ( B ). Scale bars, 1.000e+5 –∼ 5.000e + 5 p/s/cm 2 /sr for living images; 200 μm for IHC; 50 μm for immunofluorescence. C and D, Representative images ( C ) and tumor volume ( D ) of subcutaneous tumors. The administration protocol for the mice was consistent with the description provided in A and B . **, P < 0.01; ***, P < 0.001.

Article Snippet: For immunotherapy, anti-mouse PD-L1 antibody (100 μg/mouse, TargetMol, T78270 ), GPR34 inhibitor (GPR34 receptor antagonist 2, 20 mg/kg, MERYER, 907952), and XBP1s inhibitor (STF-083010, 30 mg/kg, MedChemExpress, HY-15845) were intraperitoneally injected once every 3 days, and ACh receptor inhibitor (darifenacin, 2.5 mg/kg, MedChemExpress, HY–A0033) was intraperitoneally injected every day after tumor formation.

Techniques: Injection, Immunofluorescence

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: Elevated ABHD16A triggered by ACh was associated with poor prognosis in patients with gastric cancer. A, Representative IHC images of ABHD16A expression in human normal gastric tissues and gastric cancer tissues from the TMA with magnifications of 40×, 100×, and 200×. Scale bar for 200×, 100 μm. B–D, Relationship of ABHD16A IHC score to clinical stage ( B ), pT stage ( C ), and lymph node metastasis ( n = 80; D ). E, Cumulative survival curves of patients with gastric cancer with high or low ABHD16A expression based on the TMA. F, IHC images and score of ABHD16A in S100 + or S100 − gastric cancer tissues. Scale bar, 100 μm. G, Procedure for coculture of DRG neurons and gastric cancer cells. H, Western blotting was used to analyze ABHD16A levels in MFC cells cocultured with DRG neurons or DRG neuron–derived CM. GAPDH served as the loading control. I, Expression of HIF1A and ABHD16A in neurotransmitter [HA, dopamine (DA), 5-HT, norepinephrine (NE), ACh]-treated MFC cells and ACh-treated MGC-803 cells. J, ACh concentration was detected in DRG CM by ELISA. K, Tumor volume of orthotopic gastric cancer tumors with or without vagotomy. L, Representative mIF staining images of FOXP3, CD163, CD11b, CD8, PD-L1, and Pan-CK in gastric cancer tissues with high or low expression of ABHD16A. Scale bar, 100 μm. **, P < 0.01; ***, P < 0.001; ****, P < 0.0001.

Article Snippet: The antibodies used for flow cytometry: Brilliant Violet 605 anti-mouse CD127 (BioLegend, cat. #135025, RRID: AB_2562114, 5 μL/1 × 10 6 cells), FITC anti-mouse CD3 (BioLegend, cat. #100203, RRID: AB_312660, 2 μL/1 × 10 6 cells), APC anti-mouse CD3 (Elabscience, cat. #E-AB-F1013E, RRID: AB_3675272, 5 μL/1×10 6 cells), PE/Cyanine7 anti-mouse CD4 (Elabscience, cat. #E-AB-F1097H, 5 μL/1 × 10 6 cells), FITC Anti-Mouse CD8a (Elabscience, cat. #E-AB-F1104UC, 5 μL/1 × 10 6 cells), FITC anti-mouse CD19 (BioLegend, cat. #152403, RRID: AB_2629812, 0.25 μL/1 × 10 6 cells), FITC anti-mouse CD11c (BioLegend, cat. #117305, RRID: AB_313774, 0.5 μL/1 × 10 6 cells), FITC anti-mouse NK1.1 (BioLegend, cat. #108705, RRID: AB_313392, 0.5 μL/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD45 (BioLegend, cat. #103133, RRID: AB_10899570, 1 μL/1 × 10 6 cells), PE anti-mouse RORγt (BD Biosciences, cat. #562607, RRID: AB_11153137, 2 μL/1 × 10 6 cells), PerCP/Cyanine5.5 anti-mouse IL22 (BioLegend, cat. #516411, RRID: AB_2563373, 5 μL/1 × 10 6 cells), AF647 anti-STAT3 phospho (BioLegend, cat. #651007, RRID: AB_2572085, 5 μL/1 × 10 6 cells), PE anti-mouse CD45 (BioLegend, cat. #157604, RRID: AB_2876536, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD8b (BioLegend, cat. #126613, RRID: AB_2562774, 0.625 μL/1 × 10 6 cells), APC anti-mouse CD4 (BioLegend, cat. #100411, RRID: AB_312696, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD206 (BioLegend, cat. #141707, RRID: AB_10896057, 2.5 μL/1 × 10 6 cells), FITC anti-mouse F4/80 (BioLegend, cat. #157309, RRID: AB_2876535, 2 μL/1 × 10 6 cells), FITC anti-mouse CD25 (BioLegend, cat. #101907, RRID: AB_961210, 2 μL/1 × 10 6 cells), AF700 anti-mouse FOXP3 (BioLegend, cat. #126421, RRID: AB_2750492, 0.12 μL/1 × 10 6 cells), PE anti-mouse Ly6G (BioLegend, cat. #127607, RRID: AB_1186104, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD274 (Elabscience, cat. #E-AB-F1132E, 5 μL/1 × 10 6 cells), PerCP-Cyanine5.5 anti–T-bet (eBioscience, cat. #45-5825-80, RRID: AB_953658, 0.25 μg/1 × 10 6 cells), PE/Dazzle 594 anti-mouse CD273 (BioLegend, cat. #107215, RRID: AB_2728124, 0.25 μg/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD274 (BioLegend, cat. #124315, RRID: AB_10897097, 5 μL/1 × 10 6 cells), and PE anti-mouse MHC-I (H-2Kk; BioLegend, cat. #114907, RRID: AB_313614, 0.25 μg/1 × 10 6 cells).

Techniques: Expressing, Western Blot, Derivative Assay, Control, Concentration Assay, Enzyme-linked Immunosorbent Assay, Staining

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: ABHD16A promotes ILC3 aggregation and IL22 release in the immune microenvironment. A, A total of 5 × 10 6 MFC-luc or Abhd16a -knockdown MFC-luc cells were injected into the epidermis of the greater curvature of the stomach in the 615 mice. Tumor growth was monitored weekly through bioluminescence imaging from the first day of MFC cell inoculation. Scale bar, 2.000e+4 – 5.000e + 5 p/s/cm 2 /sr. B and C, Representative images of the excised stomachs ( B ) and the orthotopic tumor volume ( C ) on day 28 after gastric cancer cells were implanted orthotopically ( n = 9 per group). D, H&E images of the stomach, peritoneum, liver, intestine, and lung on day 42 after MFC or Abhd16a -knockdown MFC cells were implanted into 615 mice. Scale bar, 400 μm. E–G, Representative images ( E ), volume ( F ), and weight ( G ) of control and Abhd16a -knockdown subcutaneous tumors ( n = 5 per group). H, IHC images of PD-L1 in control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tissues. Scale bar, 500 μm. I, Detection of mouse cytokines in the TIF of orthotopic gastric cancer tissues by proteome profiler mouse XL cytokine array. J, Flow cytometry gating strategy and frequencies of ILC3s and Th17/Th22 cells out of CD45 + cells in control and Abhd16a -knockdown gastric cancer tissues in 615 mice. K, Flow cytometry gating strategy and frequencies of ILC3s out of ILCs in control and Abhd16a -knockdown gastric cancer tissues in Rag1 −/− mice. ***, P < 0.001.

Article Snippet: The antibodies used for flow cytometry: Brilliant Violet 605 anti-mouse CD127 (BioLegend, cat. #135025, RRID: AB_2562114, 5 μL/1 × 10 6 cells), FITC anti-mouse CD3 (BioLegend, cat. #100203, RRID: AB_312660, 2 μL/1 × 10 6 cells), APC anti-mouse CD3 (Elabscience, cat. #E-AB-F1013E, RRID: AB_3675272, 5 μL/1×10 6 cells), PE/Cyanine7 anti-mouse CD4 (Elabscience, cat. #E-AB-F1097H, 5 μL/1 × 10 6 cells), FITC Anti-Mouse CD8a (Elabscience, cat. #E-AB-F1104UC, 5 μL/1 × 10 6 cells), FITC anti-mouse CD19 (BioLegend, cat. #152403, RRID: AB_2629812, 0.25 μL/1 × 10 6 cells), FITC anti-mouse CD11c (BioLegend, cat. #117305, RRID: AB_313774, 0.5 μL/1 × 10 6 cells), FITC anti-mouse NK1.1 (BioLegend, cat. #108705, RRID: AB_313392, 0.5 μL/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD45 (BioLegend, cat. #103133, RRID: AB_10899570, 1 μL/1 × 10 6 cells), PE anti-mouse RORγt (BD Biosciences, cat. #562607, RRID: AB_11153137, 2 μL/1 × 10 6 cells), PerCP/Cyanine5.5 anti-mouse IL22 (BioLegend, cat. #516411, RRID: AB_2563373, 5 μL/1 × 10 6 cells), AF647 anti-STAT3 phospho (BioLegend, cat. #651007, RRID: AB_2572085, 5 μL/1 × 10 6 cells), PE anti-mouse CD45 (BioLegend, cat. #157604, RRID: AB_2876536, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD8b (BioLegend, cat. #126613, RRID: AB_2562774, 0.625 μL/1 × 10 6 cells), APC anti-mouse CD4 (BioLegend, cat. #100411, RRID: AB_312696, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD206 (BioLegend, cat. #141707, RRID: AB_10896057, 2.5 μL/1 × 10 6 cells), FITC anti-mouse F4/80 (BioLegend, cat. #157309, RRID: AB_2876535, 2 μL/1 × 10 6 cells), FITC anti-mouse CD25 (BioLegend, cat. #101907, RRID: AB_961210, 2 μL/1 × 10 6 cells), AF700 anti-mouse FOXP3 (BioLegend, cat. #126421, RRID: AB_2750492, 0.12 μL/1 × 10 6 cells), PE anti-mouse Ly6G (BioLegend, cat. #127607, RRID: AB_1186104, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD274 (Elabscience, cat. #E-AB-F1132E, 5 μL/1 × 10 6 cells), PerCP-Cyanine5.5 anti–T-bet (eBioscience, cat. #45-5825-80, RRID: AB_953658, 0.25 μg/1 × 10 6 cells), PE/Dazzle 594 anti-mouse CD273 (BioLegend, cat. #107215, RRID: AB_2728124, 0.25 μg/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD274 (BioLegend, cat. #124315, RRID: AB_10897097, 5 μL/1 × 10 6 cells), and PE anti-mouse MHC-I (H-2Kk; BioLegend, cat. #114907, RRID: AB_313614, 0.25 μg/1 × 10 6 cells).

Techniques: Knockdown, Injection, Imaging, Control, Flow Cytometry

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: High expression of ABHD16A mediates the cumulative release of LysoPS into the TME. A, mIF images of the orthotopic gastric cancer (GC) tissues stained for PD-L1, RORC, and CD3. Yellow, PD-L1 + tumor cells; red, RORC + ILC3s; green, CD3 + cells. Scale bars, 100 μm (left) and 25 μm (right). B and C, Flow cytometry gating strategy and frequencies of ILC3s ( B ) and proportions of ILC3s in total CD45 + cells ( C ) isolated from control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tissues ( n = 3 per group). D and E, Flow cytometry gating strategy and frequencies of ILC3s ( D ) and proportions of ILC3s in total CD45 + cells ( E ) derived from the peripheral blood of healthy controls (HC) and patients with gastric cancer ( n = 8 per group). F and G, LC-MS/MS analysis of 18:0 and 18:1 LysoPS in the control and Abhd16a -knockdown orthotopic ( F ) and subcutaneous ( G ) gastric cancer tissues ( n = 3 per group). H–J, ELISA was used to measure levels of LysoPS in gastric cancer cell supernatant ( H ), TIF ( I ), and in vitro tumor culture supernatant ( J ) of control and Abhd16a -knockdown orthotopic and subcutaneous gastric cancer tumors ( n = 3 per group). K, LysoPS levels in the serum of healthy controls and patients with gastric cancer detected by ELISA. *, P < 0.05; **, P < 0.01; ***, P < 0.001.

Article Snippet: The antibodies used for flow cytometry: Brilliant Violet 605 anti-mouse CD127 (BioLegend, cat. #135025, RRID: AB_2562114, 5 μL/1 × 10 6 cells), FITC anti-mouse CD3 (BioLegend, cat. #100203, RRID: AB_312660, 2 μL/1 × 10 6 cells), APC anti-mouse CD3 (Elabscience, cat. #E-AB-F1013E, RRID: AB_3675272, 5 μL/1×10 6 cells), PE/Cyanine7 anti-mouse CD4 (Elabscience, cat. #E-AB-F1097H, 5 μL/1 × 10 6 cells), FITC Anti-Mouse CD8a (Elabscience, cat. #E-AB-F1104UC, 5 μL/1 × 10 6 cells), FITC anti-mouse CD19 (BioLegend, cat. #152403, RRID: AB_2629812, 0.25 μL/1 × 10 6 cells), FITC anti-mouse CD11c (BioLegend, cat. #117305, RRID: AB_313774, 0.5 μL/1 × 10 6 cells), FITC anti-mouse NK1.1 (BioLegend, cat. #108705, RRID: AB_313392, 0.5 μL/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD45 (BioLegend, cat. #103133, RRID: AB_10899570, 1 μL/1 × 10 6 cells), PE anti-mouse RORγt (BD Biosciences, cat. #562607, RRID: AB_11153137, 2 μL/1 × 10 6 cells), PerCP/Cyanine5.5 anti-mouse IL22 (BioLegend, cat. #516411, RRID: AB_2563373, 5 μL/1 × 10 6 cells), AF647 anti-STAT3 phospho (BioLegend, cat. #651007, RRID: AB_2572085, 5 μL/1 × 10 6 cells), PE anti-mouse CD45 (BioLegend, cat. #157604, RRID: AB_2876536, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD8b (BioLegend, cat. #126613, RRID: AB_2562774, 0.625 μL/1 × 10 6 cells), APC anti-mouse CD4 (BioLegend, cat. #100411, RRID: AB_312696, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD206 (BioLegend, cat. #141707, RRID: AB_10896057, 2.5 μL/1 × 10 6 cells), FITC anti-mouse F4/80 (BioLegend, cat. #157309, RRID: AB_2876535, 2 μL/1 × 10 6 cells), FITC anti-mouse CD25 (BioLegend, cat. #101907, RRID: AB_961210, 2 μL/1 × 10 6 cells), AF700 anti-mouse FOXP3 (BioLegend, cat. #126421, RRID: AB_2750492, 0.12 μL/1 × 10 6 cells), PE anti-mouse Ly6G (BioLegend, cat. #127607, RRID: AB_1186104, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD274 (Elabscience, cat. #E-AB-F1132E, 5 μL/1 × 10 6 cells), PerCP-Cyanine5.5 anti–T-bet (eBioscience, cat. #45-5825-80, RRID: AB_953658, 0.25 μg/1 × 10 6 cells), PE/Dazzle 594 anti-mouse CD273 (BioLegend, cat. #107215, RRID: AB_2728124, 0.25 μg/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD274 (BioLegend, cat. #124315, RRID: AB_10897097, 5 μL/1 × 10 6 cells), and PE anti-mouse MHC-I (H-2Kk; BioLegend, cat. #114907, RRID: AB_313614, 0.25 μg/1 × 10 6 cells).

Techniques: Expressing, Staining, Flow Cytometry, Isolation, Control, Knockdown, Derivative Assay, Liquid Chromatography with Mass Spectroscopy, Enzyme-linked Immunosorbent Assay, In Vitro

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: IL22 upregulates PD-L1 expression in gastric cancer cells through the UPR IRE1α–XBP1 axis. A, mIF images show the alterations of PD-L1 + tumor cells (purple), CD4 + (green), and CD8 + (red) T cells in orthotopic gastric cancer tumors from control and Abhd16a -knockdown mice following IL22 treatment. Scale bar, 50 μm. B, KEGG pathway enrichment analysis of RNA-seq data of gastric cancer tissues with or without IL22 treatment. C, RT-PCR was used to assess the mRNA expression of key downstream molecules of the UPR branches ( XBP1 , ATF4 , ATF6 ) in control and IL22RA1 -knockdown gastric cancer cells. D, Western blotting analysis of PD-L1 and XBP1s levels in control and IL22RA1 -knockdown MGC-803 cells treated with IL22 (100 μg/L). E, Western blotting detection of PD-L1 and XBP1s levels in XBP1- knockdown MGC-803 cells treated with IL22 and MGC-803 cells treated with IL22 or XBP1s inhibitor (STF083010, 30 μmol/L) in combination with IL22. F, The binding sequence of XBP1 on the CD274 promoter. G and H, ChIP ( G ) and luciferase reporter assay ( H ) showing the transcriptional regulation of CD274 by XBP1s under IL22 stimulation. I, Orthotopic gastric cancer mouse models ( n = 5 per group) were injected with anti-IL22 (200 μg per mouse), anti-CD90.2 antibody (150 μg per mouse), anti-CD90.2 antibody in combination with IL22 (500 ng per mouse), or anti-CD90.2 antibody in combination with XBP1s inhibitors (STF083010, 30 mg/kg) and IL22 for 2 weeks. IHC analysis was used to show IL22, XBP1s, and PD-L1 levels in gastric cancer tissues. Scale bar, 200 μm. J, Tumor volume of orthotopic gastric cancer models under treatments the same as in I . *, P < 0.05; **, P < 0.01; ***, P < 0.001; ns, nonsignificant.

Article Snippet: The antibodies used for flow cytometry: Brilliant Violet 605 anti-mouse CD127 (BioLegend, cat. #135025, RRID: AB_2562114, 5 μL/1 × 10 6 cells), FITC anti-mouse CD3 (BioLegend, cat. #100203, RRID: AB_312660, 2 μL/1 × 10 6 cells), APC anti-mouse CD3 (Elabscience, cat. #E-AB-F1013E, RRID: AB_3675272, 5 μL/1×10 6 cells), PE/Cyanine7 anti-mouse CD4 (Elabscience, cat. #E-AB-F1097H, 5 μL/1 × 10 6 cells), FITC Anti-Mouse CD8a (Elabscience, cat. #E-AB-F1104UC, 5 μL/1 × 10 6 cells), FITC anti-mouse CD19 (BioLegend, cat. #152403, RRID: AB_2629812, 0.25 μL/1 × 10 6 cells), FITC anti-mouse CD11c (BioLegend, cat. #117305, RRID: AB_313774, 0.5 μL/1 × 10 6 cells), FITC anti-mouse NK1.1 (BioLegend, cat. #108705, RRID: AB_313392, 0.5 μL/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD45 (BioLegend, cat. #103133, RRID: AB_10899570, 1 μL/1 × 10 6 cells), PE anti-mouse RORγt (BD Biosciences, cat. #562607, RRID: AB_11153137, 2 μL/1 × 10 6 cells), PerCP/Cyanine5.5 anti-mouse IL22 (BioLegend, cat. #516411, RRID: AB_2563373, 5 μL/1 × 10 6 cells), AF647 anti-STAT3 phospho (BioLegend, cat. #651007, RRID: AB_2572085, 5 μL/1 × 10 6 cells), PE anti-mouse CD45 (BioLegend, cat. #157604, RRID: AB_2876536, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD8b (BioLegend, cat. #126613, RRID: AB_2562774, 0.625 μL/1 × 10 6 cells), APC anti-mouse CD4 (BioLegend, cat. #100411, RRID: AB_312696, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD206 (BioLegend, cat. #141707, RRID: AB_10896057, 2.5 μL/1 × 10 6 cells), FITC anti-mouse F4/80 (BioLegend, cat. #157309, RRID: AB_2876535, 2 μL/1 × 10 6 cells), FITC anti-mouse CD25 (BioLegend, cat. #101907, RRID: AB_961210, 2 μL/1 × 10 6 cells), AF700 anti-mouse FOXP3 (BioLegend, cat. #126421, RRID: AB_2750492, 0.12 μL/1 × 10 6 cells), PE anti-mouse Ly6G (BioLegend, cat. #127607, RRID: AB_1186104, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD274 (Elabscience, cat. #E-AB-F1132E, 5 μL/1 × 10 6 cells), PerCP-Cyanine5.5 anti–T-bet (eBioscience, cat. #45-5825-80, RRID: AB_953658, 0.25 μg/1 × 10 6 cells), PE/Dazzle 594 anti-mouse CD273 (BioLegend, cat. #107215, RRID: AB_2728124, 0.25 μg/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD274 (BioLegend, cat. #124315, RRID: AB_10897097, 5 μL/1 × 10 6 cells), and PE anti-mouse MHC-I (H-2Kk; BioLegend, cat. #114907, RRID: AB_313614, 0.25 μg/1 × 10 6 cells).

Techniques: Expressing, Control, Knockdown, RNA Sequencing, Reverse Transcription Polymerase Chain Reaction, Western Blot, Binding Assay, Sequencing, Luciferase, Reporter Assay, Injection

Journal: Cancer Research

Article Title: Nerves Stimulate Cross-talk Between Gastric Cancer and Group 3 Innate Lymphoid Cells to Enhance Immunosuppression

doi: 10.1158/0008-5472.CAN-25-3092

Figure Lengend Snippet: Combination therapy enhances the anti–PD-L1 immunotherapeutic effect in gastric cancer. A and B, After tumor formation, the orthotopic gastric cancer mice ( n = 5 per group) were treated with anti–PD-L1 (100 μg per mouse), GPR34 inhibitor (20 mg/kg), or XBP1s inhibitor (30 mg/kg) every 3 days or ACh inhibitor (2.5 mg/kg) daily. Combinations of anti–PD-L1 with each inhibitor followed the every 3-day dosing schedule for a total duration of 2 weeks via i.p. injection. Living images were used to monitor tumor progression at 5-day intervals from the time of drug administration ( A ); IHC and mIF were performed to detect PD-L1 and XBP1s levels and proportions of CD4 + (green) and CD8 + (red) T cells in gastric cancer tissues at the end of treatments ( B ). Scale bars, 1.000e+5 –∼ 5.000e + 5 p/s/cm 2 /sr for living images; 200 μm for IHC; 50 μm for immunofluorescence. C and D, Representative images ( C ) and tumor volume ( D ) of subcutaneous tumors. The administration protocol for the mice was consistent with the description provided in A and B . **, P < 0.01; ***, P < 0.001.

Article Snippet: The antibodies used for flow cytometry: Brilliant Violet 605 anti-mouse CD127 (BioLegend, cat. #135025, RRID: AB_2562114, 5 μL/1 × 10 6 cells), FITC anti-mouse CD3 (BioLegend, cat. #100203, RRID: AB_312660, 2 μL/1 × 10 6 cells), APC anti-mouse CD3 (Elabscience, cat. #E-AB-F1013E, RRID: AB_3675272, 5 μL/1×10 6 cells), PE/Cyanine7 anti-mouse CD4 (Elabscience, cat. #E-AB-F1097H, 5 μL/1 × 10 6 cells), FITC Anti-Mouse CD8a (Elabscience, cat. #E-AB-F1104UC, 5 μL/1 × 10 6 cells), FITC anti-mouse CD19 (BioLegend, cat. #152403, RRID: AB_2629812, 0.25 μL/1 × 10 6 cells), FITC anti-mouse CD11c (BioLegend, cat. #117305, RRID: AB_313774, 0.5 μL/1 × 10 6 cells), FITC anti-mouse NK1.1 (BioLegend, cat. #108705, RRID: AB_313392, 0.5 μL/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD45 (BioLegend, cat. #103133, RRID: AB_10899570, 1 μL/1 × 10 6 cells), PE anti-mouse RORγt (BD Biosciences, cat. #562607, RRID: AB_11153137, 2 μL/1 × 10 6 cells), PerCP/Cyanine5.5 anti-mouse IL22 (BioLegend, cat. #516411, RRID: AB_2563373, 5 μL/1 × 10 6 cells), AF647 anti-STAT3 phospho (BioLegend, cat. #651007, RRID: AB_2572085, 5 μL/1 × 10 6 cells), PE anti-mouse CD45 (BioLegend, cat. #157604, RRID: AB_2876536, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD8b (BioLegend, cat. #126613, RRID: AB_2562774, 0.625 μL/1 × 10 6 cells), APC anti-mouse CD4 (BioLegend, cat. #100411, RRID: AB_312696, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD206 (BioLegend, cat. #141707, RRID: AB_10896057, 2.5 μL/1 × 10 6 cells), FITC anti-mouse F4/80 (BioLegend, cat. #157309, RRID: AB_2876535, 2 μL/1 × 10 6 cells), FITC anti-mouse CD25 (BioLegend, cat. #101907, RRID: AB_961210, 2 μL/1 × 10 6 cells), AF700 anti-mouse FOXP3 (BioLegend, cat. #126421, RRID: AB_2750492, 0.12 μL/1 × 10 6 cells), PE anti-mouse Ly6G (BioLegend, cat. #127607, RRID: AB_1186104, 1.25 μL/1 × 10 6 cells), APC anti-mouse CD274 (Elabscience, cat. #E-AB-F1132E, 5 μL/1 × 10 6 cells), PerCP-Cyanine5.5 anti–T-bet (eBioscience, cat. #45-5825-80, RRID: AB_953658, 0.25 μg/1 × 10 6 cells), PE/Dazzle 594 anti-mouse CD273 (BioLegend, cat. #107215, RRID: AB_2728124, 0.25 μg/1 × 10 6 cells), Brilliant Violet 421 anti-mouse CD274 (BioLegend, cat. #124315, RRID: AB_10897097, 5 μL/1 × 10 6 cells), and PE anti-mouse MHC-I (H-2Kk; BioLegend, cat. #114907, RRID: AB_313614, 0.25 μg/1 × 10 6 cells).

Techniques: Injection, Immunofluorescence

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: Schematic illustration of the PD-L1-targeted photosensitizer chimera and its dual mechanism of action in cancer photoimmunotherapy. ( a ) Schematic structure of the PDTAC molecule. ( b ) Principle of singlet oxygen generated from photosensitizer. ( c ) Synergistic effects of PD-L1-drgradation and ICD-induction in cancer photoimmunotherapy.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Generated

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: Synthesis and characterization of the PDTAC molecules. ( a ) Synthesis of PDTACs by SPPS. ( b ) Summary of the binding affinities toward PD-L1 measured by SPS. ( c ) Measurements of the binding affinity of PPA-VPF, PPA and VPF toward PD-L1 using SPR. ( d ) UV-Vis absorption spectra of PPA-VPF and VPF and in PBS or PBS/ACN (1:1). ( e ) Fluorescence spectra of PPA-VPF and VPF in PBS or PBS/ACN (1:1). ( f ). Amount of singlet oxygen generated from VPF and PPA-VPF (20 μM) in PBS or PBS/ACN (1:1) measured by EPR using 4-hydroxy-2,2,6,6-tetramethylpiperidine (4-OH-TEMP, 200 mM) as the spin trap. Light irradiation was performed using a 300 W Xenon arc lamp with a 600 nm bandpass filter (∼1.5 mW/cm 2 ) for the designated time.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Binding Assay, Fluorescence, Generated, Irradiation

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: Targeting of PPA-VPF to PD-L1 in cancer cells. (a) Distribution of PPA-VPF or VPF in MC38 WT and PD-L1 KO cells revealed by confocal microscopy. Western blotting confirms PD-L1 knockout efficiency with β-actin as a loading control. (b) PD-L1 expression (green) and distribution of PPA-VPA or VPF (red) in MDA-MB-231 cells and MCF-7 cells at a concentration of 1 μM (incubated for 8 h). (c) Cellular adhesion of PPA-VPF and VPF in two breast cancer cell lines. (d) Time dependence of the cellular uptake of PPA-VPF and VPF in MDA-MB-231 cells. Scale bars represent 20 μm.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Confocal Microscopy, Western Blot, Knock-Out, Control, Expressing, Concentration Assay, Incubation

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: In vitro photodegradation of PD-L1 in cancer cells. Analysis of PD-L1 abundance by western blotting ( a ), flow cytometry ( b, c ) and confocal imaging ( d ) in MDA-MB-231 cells. ( e ) Time dependence of PD-L1 degradation after PPA-VPF treatment and the blocking effect of chloroquine. ( f ) Coomassie blue staining of PD-L1 photolyzed in mixed solution (concentrations of PPA, PPA-VPF and VPF were 10 μM). ( g ) Time dependence of cellular PD-L1 distribution (green) after incubation with PPA-VPF (red). ( h ) Two mechanisms by which PPA-VPF degrades PD-L1 in cells. Irradiation was performed using a 300 W Xenon arc lamp (600 nm bandpass filter, 1.5 mW/cm 2 ) for the designated time. Scale bars represent 20 μm.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: In Vitro, Western Blot, Flow Cytometry, Imaging, Blocking Assay, Staining, Incubation, Irradiation

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: PPA-VPF resulting in immunogenic cell death in cancer cells. ( a ) Dose-dependent cytotoxicity of PPA-VPF under irradiation (5 min twice) in MC38 and PD-L1-KO-MC38 cells, and ( b ) in MDA-MB-231 (PD-L1 high) and MCF-7 (PD-L1 low) cells. ( c ) Dose-dependent cytotoxicity of PPA-VPF or VPF under irradiation (5 min twice) in normal 293T cells. HMGB1 release ( d ) and ATP release ( e ) from 4T1, MCF-7 and MDA-MB-231 cells photo-irradiated with VPF or PPA-VPF. ( f - g) Maturation of BMDCs cocultured with dying 4T1 cells photoirradiated with VPF or PPA-VPF. Irradiation was performed using a 300 W Xenon arc lamp (600 nm bandpass filter, 1.5 mW/cm 2 ) for the designated time. PPV was tested for comparison, and LPS (100 ng/mL) was used as a positive control.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Irradiation, Comparison, Positive Control

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: Antitumor activity of PPA-VPF in mice engrafted with bilateral 4T1 tumors. ( a ) Procedures of tumor treatment. Growth curves, tumor growth inhibition rate and images of dissected xenografts of primary tumors ( b ) and distant tumodrs ( c ) with the indicated treatment in Balb/c mice xenografted with 4T1. ( d ) H&E staining and TUNEL analysis of the primary tumors after the indicated treatment. ( e ) Growth curve of 4T1 tumors in Balb/c nude mice with the indicated treatment. ( f ) Frequency of CD8 + CD3 + T cells in tumor-infiltrating lymphocytes and frequency of IFN-γ + CD8 + effector T cells in total CD8 + T cells collected from mice tumors after the indicated treatment . Quantification of relative PD-L1 content based on western blotting ( g ) and immunofluorescent staining of PD-L1 ( h ) in the primary tumors at the endpoint of the indicated treatment.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Activity Assay, Inhibition, Staining, TUNEL Assay, Western Blot

Journal: Redox Biology

Article Title: PD-L1-targeted photodynamic therapy orchestrates checkpoint blockade and immunogenic cell death for synergistic cancer immunotherapy

doi: 10.1016/j.redox.2026.104075

Figure Lengend Snippet: Therapeutic response in MC38 and CT26 xenograft models. ( a ) Tumor growth curves from C57BL/6J mice (n = 4) with primary tumor samples. Treatment groups: vehicle control (PBS), PD-L1 KO, PPA-VPF (8 mg/kg), and PD-L1 KO with PPA-VPF. Light irradiation was performed using a 689 nm laser 24 h (PPA-VPF) or 30 min (VPF) after injection (100 mW/cm 2 for 8 min). ( b ) The xenografts obtained at the endpoint of the indicated treatments. ( c ) Tumor growth curves with representative primary tumor specimens from BALB/c mice (n = 4). ( d ) The images of dissected xenografts of primary tumors and distant tumors with the indicated treatment. Treatment groups: vehicle control (PBS), monotherapy PD-L1 antibody (5 mg/kg every three days over a 12-day course), monotherapy PPA-VPF (8 mg/kg every two days, administered thrice), combination therapy (PPA-VPF + PD-L1 antibody). Data represent mean ± SD. ( e ) IHC staining and analysis of CD3 expression in CT26 primary tumor following treatment PPA-VPF and PD-L1 antibody. Scale bar represents 10 μm.

Article Snippet: The anti-mouse PD-L1 antibody (Cell Signaling Technology) was added to the slides and incubated at 4 °C overnight for immunofluorescence staining.

Techniques: Clinical Proteomics, Control, Irradiation, Injection, Immunohistochemistry, Expressing