p38  (Cell Signaling Technology Inc)

Journal: Journal of Traditional and Complementary Medicine

Article Title: Osthole attenuates trastuzumab-induced cardiotoxicity in mice by enhancing autophagy via regulating the p38MAPK/mTOR signaling pathway

doi: 10.1016/j.jtcme.2025.06.001

Figure Lengend Snippet: Effects of OST on cardiac autophagy and the p38MAPK/mTOR signaling pathway in TRZ-treated mice. (A–B) Representative images of transmission electron microscopy images, yellow arrow, mitochondria; red arrow, autophagosome. (C) Representative western blotting bands for LC3I, LC3II, Beclin-1, p62. (D–F) Quantitative analysis of LC3II/I, Beclin-1, p62 (normalized to GAPDH). (G) Representative western blotting bands for p-p38MAPK, p38MAPK, p-mTOR and mTOR. (H) Quantitative analysis of p-p38MAPK/p38MAPK and p-mTOR/mTOR. Data are expressed as means ± SEM ( n = 3). ## P < 0.01 vs the CON group; ∗ P < 0.05, ∗∗ P < 0.01 vs the TRZ group.

Article Snippet: The first antibodies to Bax (1:1000 dilution, A0207), Bcl-2 (1:800 dilution, A0208), Caspase-3 (1:800 dilution, A2156), LC3 (1:500 dilution, A19665), Beclin-1 (1:1000 dilution, A7353), p62 (1:1000 dilution, A19700) and GAPDH (1:800 dilution, A19056) were purchased from ABclonal Company (Wuhan, China), p38MAPK (1:1000 dilution, bs-0637R) and p-p38MAPK (1:1000 dilution, bs-0636R) were purchased from Bioss Company (Beijing, China), mTOR (1:1000 dilution, #2983) and p-mTOR (1:1000 dilution, #2971) were purchased from CST Company (Danvers, MA, USA).

Techniques: Transmission Assay, Electron Microscopy, Western Blot

Journal: Journal of Traditional and Complementary Medicine

Article Title: Osthole attenuates trastuzumab-induced cardiotoxicity in mice by enhancing autophagy via regulating the p38MAPK/mTOR signaling pathway

doi: 10.1016/j.jtcme.2025.06.001

Figure Lengend Snippet: Effects of OST on autophagy and the p38MAPK/mTOR signaling pathway in TRZ-treated mice after SB203580 administration. (A–B) Representative images of transmission electron microscopy images, yellow arrow, mitochondria; red arrow, autophagosome. (C) Representative western blotting bands for LC3I, LC3II, Beclin-1, p62. (D–F) Quantitative analysis of LC3II/I, Beclin-1, p62 (normalized to GAPDH). (G) Representative western blotting bands for p-mTOR and mTOR. (H) Quantitative analysis of p-mTOR/mTOR. Data are expressed as means ± SEM ( n = 3). # P < 0.05, ## P < 0.01 vs the CON group; ∗ P < 0.05, ∗∗ P < 0.01 vs the TRZ group; ▲ P < 0.05, ▲▲ P < 0.01 vs the TRZ + OST H group.

Article Snippet: The first antibodies to Bax (1:1000 dilution, A0207), Bcl-2 (1:800 dilution, A0208), Caspase-3 (1:800 dilution, A2156), LC3 (1:500 dilution, A19665), Beclin-1 (1:1000 dilution, A7353), p62 (1:1000 dilution, A19700) and GAPDH (1:800 dilution, A19056) were purchased from ABclonal Company (Wuhan, China), p38MAPK (1:1000 dilution, bs-0637R) and p-p38MAPK (1:1000 dilution, bs-0636R) were purchased from Bioss Company (Beijing, China), mTOR (1:1000 dilution, #2983) and p-mTOR (1:1000 dilution, #2971) were purchased from CST Company (Danvers, MA, USA).

Techniques: Transmission Assay, Electron Microscopy, Western Blot

Journal: Journal of Traditional and Complementary Medicine

Article Title: Osthole attenuates trastuzumab-induced cardiotoxicity in mice by enhancing autophagy via regulating the p38MAPK/mTOR signaling pathway

doi: 10.1016/j.jtcme.2025.06.001

Figure Lengend Snippet: Schematic illustration summarizing the protective effects of OST against TRZ-induced cardiotoxicity by enhancing autophagy via regulating the p38MAPK/mTOR signaling pathway.

Article Snippet: The first antibodies to Bax (1:1000 dilution, A0207), Bcl-2 (1:800 dilution, A0208), Caspase-3 (1:800 dilution, A2156), LC3 (1:500 dilution, A19665), Beclin-1 (1:1000 dilution, A7353), p62 (1:1000 dilution, A19700) and GAPDH (1:800 dilution, A19056) were purchased from ABclonal Company (Wuhan, China), p38MAPK (1:1000 dilution, bs-0637R) and p-p38MAPK (1:1000 dilution, bs-0636R) were purchased from Bioss Company (Beijing, China), mTOR (1:1000 dilution, #2983) and p-mTOR (1:1000 dilution, #2971) were purchased from CST Company (Danvers, MA, USA).

Techniques:

Journal: Bioactive Materials

Article Title: Precisely regulated physically-crosslinked carriers enable synergetic release of bioactive factors for MSC-mediated cartilage regeneration

doi: 10.1016/j.bioactmat.2026.01.009

Figure Lengend Snippet: Mechanisms of Cdh2 gene in chondrogenesis. (a) Relative expression of Cdh2 gene through qRT-PCR. HD: higher density; LD: lower density. (b, c) Western blotting results of N-cadherin and p38 MAPK in different groups. Cdh2 KD : Cdh2 knocked down group. (d) Immunofluorescent results of cell pellets after 3 days of co-culture. Blue: DAPI; Green: ActinGreen; Red: N-cadherin. Scale bar = 200 μm. (e, f) Relative expression of Cdh2 gene and chondrogenesis-related genes ( Sox9 , Col2a1 , Acan ) through qRT-PCR. (g) Immunofluorescent results of cell pellets after 14 days of co-culture. Blue: DAPI; Green: ActinGreen; Red: N-cadherin. Scale bar = 200 μm ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001; ∗∗∗∗p < 0.0001.

Article Snippet: After blocked with skimmed milk, the membranes were incubated with primary antibody at 4 °C (anti-N-cadherin (Abcam), anti-p38 MAPK (Proteintech)).

Techniques: Expressing, Quantitative RT-PCR, Western Blot, Co-Culture Assay

Journal: Journal of Translational Autoimmunity

Article Title: Exploring the immunomodulatory effects of environmental contaminants on autoimmune patients: An in vitro approach

doi: 10.1016/j.jtauto.2025.100341

Figure Lengend Snippet: Modulation of intracellular signaling pathways in HD, RA, and SLE cells exposed to environmental contaminants. Heatmap showing the relative expression and phosphorylation levels of key signaling proteins involved in immune regulation, inflammation, and cell survival (STAT1, STAT3, p38, AKT, and NFκB) and their phosphorylated forms in HD, RA, and SLE after exposure to PM, silica, and TCDD. Data are represented as z-score normalized values. Asterisks indicate statistically significant differences compared with the unstimulated control within each group (p < 0.05). AKT: protein kinase B; HD: healthy donors; NFκB: nuclear factor kappa-light-chain-enhancer of activated B cells; P: phosphorylated form; p38: p38 mitogen-activated protein kinase; PM: particulate matter; RA: rheumatoid arthritis; SLE: systemic lupus erythematosus; STAT: signal transducer and activator of transcription; TCDD: 2,3,7,8-tetrachlorodibenzo-p-dioxin.

Article Snippet: Membranes were blocked with 5 % non-fat milk in TBS-T and incubated overnight at 4 °C with primary antibodies against phospho-AKT (Thr308), phospho-NFκB p65 (Ser536), phospho-p38 MAPK (Thr180/Tyr182), phospho-STAT1 (Tyr701), and phospho-STAT3 (Tyr705) (Cell Signaling Technology, Danvers, MA, USA; Santa Cruz Biotechnology, Dallas, TX, USA).

Techniques: Protein-Protein interactions, Expressing, Phospho-proteomics, Control

Journal: Poultry Science

Article Title: PKA and PKC signaling pathways mediate vitamin D₃-regulated intestinal phosphorus absorption in broiler chickens

doi: 10.1016/j.psj.2026.106762

Figure Lengend Snippet: Effects of dietary vitamin D 3 supplementation on jejunal phosphorylation levels of PKA, PKC, PI3K, p38MAPK, and ERK in broiler chickens (19 d) (Experiment 1). The control and vitamin D 3 diets contained 0 and 1000 IU/kg vitamin D 3 , respectively. (a) p-PKA/t-PKA; (b) p-PKC/t-PKC; (c) p-PI3K/t-PI3K; (d) p-p38MAPK/t-p38MAPK; (e) p-ERK/t-ERK. Protein abundance values are means ± SD of four replicates per treatment (1 broiler per replicate) (n = 4). Values with different letters differ between treatments ( P < 0.05).

Article Snippet: PVDF membranes were incubated with primary antibodies against NaPi-IIb (1:1000, A9460; ABclonal, Wuhan, China), phosphorylated PKA (p-PKA; 1:1000, 5661S), phosphorylated PI3K (p-PI3K; 1:1000, 4228), phosphorylated ERK (p-ERK; 1:1000, 9101S), phosphorylated p38MAPK (p-p38MAPK; 1:1000, 9216S), total PKA (t-PKA; 1:1000, 5842S) (Cell Signaling Technology, Boston, USA), total PI3K (t-PI3K; 1:10000, 60225-1-Ig), total ERK (t-ERK; 1:8000, 11257-1-AP-50), total p38MAPK(t-p38MAPK; 1:1000, 14064-1-AP), total PKC (t-PKC; 1:1000, 21991-1-AP), phosphorylated PKC (p-PKC; 1:5000, 29123-1-AP), and GAPDH (1:10000, 60004-1-Ig) (Proteintech, Wuhan, China).

Techniques: Phospho-proteomics, Control, Quantitative Proteomics

Journal: Poultry Science

Article Title: PKA and PKC signaling pathways mediate vitamin D₃-regulated intestinal phosphorus absorption in broiler chickens

doi: 10.1016/j.psj.2026.106762

Figure Lengend Snippet: Effects of the PKA inhibitor H-89 on jejunal phosphorylation levels of PKC, PI3K, p38MAPK, and ERK in broiler chickens (10–15 d) (Experiment 2). (a) p-PKC/t-PKC; (b) p-PI3K/t-PI3K; (c) p-p38MAPK/t-p38MAPK; (d) p-ERK/t-ERK. Protein abundance values are means ± SD of four replicates per treatment (1 broiler per replicate) (n = 4). Values with different letters differ between treatments ( P < 0.05).

Article Snippet: PVDF membranes were incubated with primary antibodies against NaPi-IIb (1:1000, A9460; ABclonal, Wuhan, China), phosphorylated PKA (p-PKA; 1:1000, 5661S), phosphorylated PI3K (p-PI3K; 1:1000, 4228), phosphorylated ERK (p-ERK; 1:1000, 9101S), phosphorylated p38MAPK (p-p38MAPK; 1:1000, 9216S), total PKA (t-PKA; 1:1000, 5842S) (Cell Signaling Technology, Boston, USA), total PI3K (t-PI3K; 1:10000, 60225-1-Ig), total ERK (t-ERK; 1:8000, 11257-1-AP-50), total p38MAPK(t-p38MAPK; 1:1000, 14064-1-AP), total PKC (t-PKC; 1:1000, 21991-1-AP), phosphorylated PKC (p-PKC; 1:5000, 29123-1-AP), and GAPDH (1:10000, 60004-1-Ig) (Proteintech, Wuhan, China).

Techniques: Phospho-proteomics, Quantitative Proteomics

Journal: Poultry Science

Article Title: PKA and PKC signaling pathways mediate vitamin D₃-regulated intestinal phosphorus absorption in broiler chickens

doi: 10.1016/j.psj.2026.106762

Figure Lengend Snippet: Effects of the PKC inhibitor staurosporine on duodenal phosphorylation levels of PKA, PI3K, p38MAPK, and ERK in broiler chickens (13 d) (Experiment 3). (a) p-PKA/t-PKA; (b) p-PI3K/t-PI3K; (c) p-p38MAPK/t-p38MAPK; (d) p-ERK/t-ERK. Protein abundance values are means ± SD of four replicates per treatment (1 broiler per replicate) (n = 4). Values with different letters differ between treatments ( P < 0.05).

Article Snippet: PVDF membranes were incubated with primary antibodies against NaPi-IIb (1:1000, A9460; ABclonal, Wuhan, China), phosphorylated PKA (p-PKA; 1:1000, 5661S), phosphorylated PI3K (p-PI3K; 1:1000, 4228), phosphorylated ERK (p-ERK; 1:1000, 9101S), phosphorylated p38MAPK (p-p38MAPK; 1:1000, 9216S), total PKA (t-PKA; 1:1000, 5842S) (Cell Signaling Technology, Boston, USA), total PI3K (t-PI3K; 1:10000, 60225-1-Ig), total ERK (t-ERK; 1:8000, 11257-1-AP-50), total p38MAPK(t-p38MAPK; 1:1000, 14064-1-AP), total PKC (t-PKC; 1:1000, 21991-1-AP), phosphorylated PKC (p-PKC; 1:5000, 29123-1-AP), and GAPDH (1:10000, 60004-1-Ig) (Proteintech, Wuhan, China).

Techniques: Phospho-proteomics, Quantitative Proteomics

Journal: Redox Biology

Article Title: Stromal cell-derived itaconate promotes endometriosis via macrophage NRF2 and lysosomal pH modulation

doi: 10.1016/j.redox.2026.104101

Figure Lengend Snippet: Itaconate Regulates Lysosomal Function, Calcium Signaling, and p38 MAPK Pathway in Macrophages (A) Lysosomal acidification in ascites-derived macrophages from non-endometriosis (NC) and endometriosis (EM) patients assessed by LysoSensor fluorescence intensity (n = 6/group). (B) Lysosomal acidification in PBMC-derived macrophages after LPS,IL-4 and 4-OI treatment (n = 3/group). (C) Lysosomal pH value of BMDMs after LPS and 4-OI treatment (n = 3/group). (D, E) Effect of chloroquine (CQ) on LysoSensor intensity (D) and proportion of iNOS + BMDMs (E) after LPS and 4-OI treatment (n = 3/group). (F) mRNA levels of Il1b , Il6 , Nos2 , and Tnf in BMDMs under indicated treatments (n = 3/group). (G) Intracellular Ca 2+ dynamics in BMDMs after treatments, measured by Fluo-4. (H) Intracellular Ca 2+ dynamics in ascites-derived macrophages from NC and EM patients. (I) Quantification of intracellular calcium in peritoneal macrophages from NC and EM patients (n = 3/group). (J) Quantification of intracellular calcium in BMDMs (n = 5/group). (K) mRNA expression of lysosomal calcium channel genes ( MCOLN1 , MCOLN2 , TPC1 , TPC2 ) in ascites-derived macrophages from NC and EM patients (n = 3/group). (L) lysosomal calcium channel genes mRNA in PBMC-derived macrophages co-cultured with normal ESCs (Nor-ESC), eutopic ESCs (Eu-ESC), or ectopic ESCs (Ec-ESC) from patients (n = 5/group). (M − N) Fluo-4-based Ca 2+ dynamics in BMDMs treated with LPS, 4-OI, ML-SA1 (M), or CQ (N). (O) Flow cytometry analysis and quantification of iNOS + BMDMs after indicated treatments (n = 3/group). (P) mRNA levels of pro-inflammatory genes in BMDMs under different treatments (n = 3/group). (Q) Western blot and quantification of p-p38 and total p38 in BMDMs with LPS ± 4-OI (n = 3/group). (R–S) Western blot and quantification of iNOS, p-p38, and total p38 in BMDMs treated with LPS, 4-OI, and CQ (R), or ML-SA1 (S) (n = 3/group). (Data are presented as mean ± SEM. ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, ∗∗∗∗p < 0.0001.) EM, endometriosis; NC, non-EM control; LPS, lipopolysaccharide; 4-OI, 4-octyl itaconate; CQ, chloroquine; ML-SA1, MCOLN channel agonist; PBMC, peripheral blood mononuclear cell; ESC, endometrial stromal cell.

Article Snippet: After blocking in 5% milk in TBST, membranes were incubated overnight at 4 °C with primary antibodies: Beta Actin Monoclonal antibody(1:20000, 66009-1-Ig; Proteintech), Beta Tubulin Recombinant antibody (1:5000, 80713-1-RR; Proteintech), Anti-IRG1 antibody (1:1000; ab222411; abcam; Cambridge, UK), Nrf2 monoclonal antibody (1:2000; A21176; abclonal; Wuhan, China), iNOS Polyclonal antibody (1:500; 22226-1-AP; Proteintech), NOX2 Polyclonal antibody (1:3000; 19013-1-AP; Proteintech), p-p38 MAPK Polyclonal antibody (1:2000; 28796-1-AP; Proteintech), and p38 MAPK Polyclonal antibody (1:4000; 14064-1-AP; Proteintech).

Techniques: Derivative Assay, Fluorescence, Expressing, Cell Culture, Flow Cytometry, Western Blot, Control