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anti inpp4b  (Cell Signaling Technology Inc)


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    Structured Review

    Cell Signaling Technology Inc anti inpp4b
    Anti Inpp4b, supplied by Cell Signaling Technology Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/anti+inpp4b/pm41382155-123-43-45
    Average 86 stars, based on 1 article reviews
    anti inpp4b - by Bioz Stars, 2026-10
    86/100 stars

    Images

    Related Articles

    Western Blot:

    Article Title: <p>INPP4B inhibits cell proliferation, invasion and chemoresistance in human hepatocellular carcinoma</p>
    Article Snippet: .. Western blot analysis Western blots were performed using anti-INPP4B (Abcam, UK), anti-E-cadherin (Abcam, UK), anti-N-cadherin (Abcam, UK), anti-twist (OriGene, USA), anti-slug (OriGene, USA), anti-Cleaved caspase-3 (Cell Signaling Technology, USA), anti-Cleaved PARP (Cell Signaling Technology, USA), anti-Phospho-Akt (Invitrogen, USA), anti-Akt (Invitrogen, USA), anti-Phospho-PI3K (SigmaAldrich, USA), anti-PI3K (OriGene, USA), anti-p53 (Invitrogen, USA) and anti-GAPDH (Immunology Consultants Laboratory, USA) as previously described.27 Immunohistochemical assay Paired paraformaldehyde-fixed paraffin tissue chips were subjected to immunohistochemistry (IHC) assay, and staining evaluation was performed as previously reported.27,28 Briefly, staining signal intensities according to the chromatosis intensity, no staining, light yellow, buffy and brown are scored 0, 1, 2 and 3, respectively. ..

    Immunohistochemical staining:

    Article Title: <p>INPP4B inhibits cell proliferation, invasion and chemoresistance in human hepatocellular carcinoma</p>
    Article Snippet: .. Western blot analysis Western blots were performed using anti-INPP4B (Abcam, UK), anti-E-cadherin (Abcam, UK), anti-N-cadherin (Abcam, UK), anti-twist (OriGene, USA), anti-slug (OriGene, USA), anti-Cleaved caspase-3 (Cell Signaling Technology, USA), anti-Cleaved PARP (Cell Signaling Technology, USA), anti-Phospho-Akt (Invitrogen, USA), anti-Akt (Invitrogen, USA), anti-Phospho-PI3K (SigmaAldrich, USA), anti-PI3K (OriGene, USA), anti-p53 (Invitrogen, USA) and anti-GAPDH (Immunology Consultants Laboratory, USA) as previously described.27 Immunohistochemical assay Paired paraformaldehyde-fixed paraffin tissue chips were subjected to immunohistochemistry (IHC) assay, and staining evaluation was performed as previously reported.27,28 Briefly, staining signal intensities according to the chromatosis intensity, no staining, light yellow, buffy and brown are scored 0, 1, 2 and 3, respectively. ..

    Immunohistochemistry:

    Article Title: <p>INPP4B inhibits cell proliferation, invasion and chemoresistance in human hepatocellular carcinoma</p>
    Article Snippet: .. Western blot analysis Western blots were performed using anti-INPP4B (Abcam, UK), anti-E-cadherin (Abcam, UK), anti-N-cadherin (Abcam, UK), anti-twist (OriGene, USA), anti-slug (OriGene, USA), anti-Cleaved caspase-3 (Cell Signaling Technology, USA), anti-Cleaved PARP (Cell Signaling Technology, USA), anti-Phospho-Akt (Invitrogen, USA), anti-Akt (Invitrogen, USA), anti-Phospho-PI3K (SigmaAldrich, USA), anti-PI3K (OriGene, USA), anti-p53 (Invitrogen, USA) and anti-GAPDH (Immunology Consultants Laboratory, USA) as previously described.27 Immunohistochemical assay Paired paraformaldehyde-fixed paraffin tissue chips were subjected to immunohistochemistry (IHC) assay, and staining evaluation was performed as previously reported.27,28 Briefly, staining signal intensities according to the chromatosis intensity, no staining, light yellow, buffy and brown are scored 0, 1, 2 and 3, respectively. ..

    Staining:

    Article Title: <p>INPP4B inhibits cell proliferation, invasion and chemoresistance in human hepatocellular carcinoma</p>
    Article Snippet: .. Western blot analysis Western blots were performed using anti-INPP4B (Abcam, UK), anti-E-cadherin (Abcam, UK), anti-N-cadherin (Abcam, UK), anti-twist (OriGene, USA), anti-slug (OriGene, USA), anti-Cleaved caspase-3 (Cell Signaling Technology, USA), anti-Cleaved PARP (Cell Signaling Technology, USA), anti-Phospho-Akt (Invitrogen, USA), anti-Akt (Invitrogen, USA), anti-Phospho-PI3K (SigmaAldrich, USA), anti-PI3K (OriGene, USA), anti-p53 (Invitrogen, USA) and anti-GAPDH (Immunology Consultants Laboratory, USA) as previously described.27 Immunohistochemical assay Paired paraformaldehyde-fixed paraffin tissue chips were subjected to immunohistochemistry (IHC) assay, and staining evaluation was performed as previously reported.27,28 Briefly, staining signal intensities according to the chromatosis intensity, no staining, light yellow, buffy and brown are scored 0, 1, 2 and 3, respectively. ..

    other:


    Saline:

    Article Title: Estrogen receptor β regulates AKT activity through up-regulation of INPP4B and inhibits migration of prostate cancer cell line PC-3
    Article Snippet: .. Membranes were blocked with 5% nonfat powdered milk in 0.1% Tris-buffered saline buffer and probed with anti-ERβ (PPZ0506, Invitrogen), anti-INPP4B (D9K1B), pAKT Thr308 (D25E6), pAKT Ser473 (D9E), panAKT (C67E7), pGSK3β (D85E12), (Cell Signaling Technology), GAPDH-HRP (sc-47724) (Santa Cruz Biotechnology), and β-Actin ( {"type":"entrez-protein","attrs":{"text":"A19780","term_id":"89794"}} A19780 ) (Millipore Sigma). ..

    Incubation:

    Article Title: Collateral metabolic vulnerabilities unveiled by loss of isozyme diversity in breast cancer
    Article Snippet: Subsequently, proteins were resolved by SDS-PAGE and transferred to polyvinylidene difluoride membranes (Millipore). .. The membranes were incubated with the specific primary antibodies, including anti-ACACB (1:1000, CST, rabbit monoclonal, cat. no. 8578), anti-ACACA (1:2000, Proteintech, rabbit polyclonal, cat. no. 21923-1-AP), anti-HMGCS2 (1:1000, CST, rabbit monoclonal, cat. no. 20940), anti-HMGCS1 (1:1000, Proteintech, rabbit polyclonal, cat. no. 17643-1-AP), anti-INPP4B (1:1000, CST, rabbit monoclonal, cat. no. #14543), anti-INPP4A (1:1000, Proteintech, rabbit polyclonal, cat. no. 12665-1-AP), anti-NMT2 (1:500, Santa Cruz, mouse monoclonal, cat. no. sc-136005), anti-NMT1 (1:2000, Proteintech, rabbit polyclonal, cat. no. 11546-1-AP), anti-Flag (1:1000, Sigma-Aldrich, mouse monoclonal, cat. no. F1804), anti-FXR2 (1:500, Santa Cruz, mouse monoclonal, cat. no. sc-32266), anti-vinculin (1:100000, ABclonal, rabbit monoclonal, cat. no. A2752), anti-GAPDH (1:20000, Proteintech, mouse monoclonal, cat. no. 60004-1-lg), anti-ACTB (1:20000, Proteintech, mouse monoclonal, cat. no. 66009-1-Ig). .. Secondary antibody conjugated with HRP (1:10000, goat anti-rabbit or goat ani-mouse, Proteintech) and enhanced chemiluminescence (Tanon) were employed to detect specific protein signals.

    Article Title: Collateral metabolic vulnerabilities unveiled by loss of isozyme diversity in breast cancer.
    Article Snippet: Subsequently, proteins were resolved by SDS-PAGE and transferred to polyvinylidene difluoride membranes (Millipore). .. The membranes were incubated with the specific primary antibodies, including anti-ACACB (1:1000, CST, rabbit monoclonal, cat no. 8578), anti-ACACA (1:2000, Proteintech, rabbit polyclonal, cat no. 21923-1-AP), anti-HMGCS2 (1:1000, CST, rabbit monoclonal, cat no. 20940), anti- HMGCS1 (1:1000, Proteintech, rabbit polyclonal, cat no. 17643-1-AP), anti-INPP4B (1:1000, CST, rabbit monoclonal, cat no. #14543), anti-INPP4A (1:1000, Proteintech, rabbit polyclonal, cat no. 12665-1-AP), anti-NMT2 (1:500, Santa Cruz, mouse monoclonal, cat no. sc-136005), anti-NMT1 (1:2000, Proteintech, rabbit polyclonal, cat no. 11546-1-AP), anti-Flag (1:1000, Sigma-Aldrich, mouse monoclonal, cat no. F1804), anti-FXR2 (1:500, Santa Cruz, mouse monoclonal, cat no. sc-32266), anti- vinculin (1:100000, ABclonal, rabbit monoclonal, cat no. A2752), anti-GAPDH AR TIC LE IN PR ES S (1:20000, Proteintech, mouse monoclonal, cat no. 60004-1-lg), anti-ACTB (1:20000, Proteintech, mouse monoclonal, 66009-1-Ig). .. Secondary antibody conjugated with HRP (1:10000, Goat anti-Rabbit or Goat ani-mouse, Proteintech) and enhanced chemiluminescent (Tanon) were employed to detect specific protein signals.



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    Cell Signaling Technology Inc inpp4b
    ( A ) Correlation between ERG and PTEN mRNA in TCGA primary PCa. ( B ) Correlation between ERG and <t>INPP4B</t> mRNA in TCGA primary PCa. ( C ) Correlation between ERG mRNA and INPP4B protein, and PTEN genomic alterations, in TCGA primary PCa. ( D ) Correlation between PTEN and INPP4B mRNA, and PTEN genomic alterations, in TCGA primary PCa. ( E ) Correlation between ERG and IRS2 mRNA in TCGA primary PCa. All analyses were done on cBioPortal. ( F ) Duplicate cultures of LNCaP and VCaP cells were lysed and immunoblotted as indicated.
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    Cell Signaling Technology Inc antibodies against inpp4b
    <t>INPP4B</t> and FN1 interact to regulate the actin cytoskeleton. A, immunoblot demonstrating OE of INPP4B in BxPC-3. B and C, fluorescence imaging and quantitation of edge-F-actin in INPP4B -overexpressing BxPC-3 cells costained with Alexa 488 -phalloidin and DAPI. D, immunoblot of INPP4B KO HPAC cells. INPP4B KO HPAC cells treated with 20 μg/ml FN1 or vehicle assessed through F-actin IF with phalloidin staining ( E and F ) or ( G and H ) Lifeact-GFP and Hoescht 33342. I, immunoblot demonstrating INPP4B KO BxPC-3 cells. J and K, fluorescence imaging and quantitation of edge-F-actin in INPP4B KO BxPC-3 cells treated with 20 μg/ml FN1 or vehicle costained with Alexa 488 -phalloidin and DAPI. The scale bar represents 25 μm. Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. DAPI, 4′,6-diamidino-2-phenylindole; FN1, fibronectin 1; IF, immunofluorescence; INPP4B, inositol polyphosphate 4-phosphatase, type II; OE, overexpression.
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    Image Search Results


    ( A ) Correlation between ERG and PTEN mRNA in TCGA primary PCa. ( B ) Correlation between ERG and INPP4B mRNA in TCGA primary PCa. ( C ) Correlation between ERG mRNA and INPP4B protein, and PTEN genomic alterations, in TCGA primary PCa. ( D ) Correlation between PTEN and INPP4B mRNA, and PTEN genomic alterations, in TCGA primary PCa. ( E ) Correlation between ERG and IRS2 mRNA in TCGA primary PCa. All analyses were done on cBioPortal. ( F ) Duplicate cultures of LNCaP and VCaP cells were lysed and immunoblotted as indicated.

    Journal: The Journal of Clinical Investigation

    Article Title: Androgen deprivation–mediated activation of AKT is enhanced in prostate cancer with TMPRSS2:ERG fusion

    doi: 10.1172/JCI192368

    Figure Lengend Snippet: ( A ) Correlation between ERG and PTEN mRNA in TCGA primary PCa. ( B ) Correlation between ERG and INPP4B mRNA in TCGA primary PCa. ( C ) Correlation between ERG mRNA and INPP4B protein, and PTEN genomic alterations, in TCGA primary PCa. ( D ) Correlation between PTEN and INPP4B mRNA, and PTEN genomic alterations, in TCGA primary PCa. ( E ) Correlation between ERG and IRS2 mRNA in TCGA primary PCa. All analyses were done on cBioPortal. ( F ) Duplicate cultures of LNCaP and VCaP cells were lysed and immunoblotted as indicated.

    Article Snippet: Protein extracts were immunoblotted with antibodies against AKT pS473 (Cell Signaling, rabbit mAb 4058, 1:1,000) or pT308 (Cell Signaling, rabbit mAb 2965, 1:1000), S6 pS235,236 (Cell Signaling, 2211, 1:1,000), ERK pT202,Y204 (Cell Signaling, rabbit mAb 4858, 1:1,000), AR (mAb 441, Abcam, ab9474, 1:1,000), ERG (Cell Signaling, rabbit mAb 97249, 1:1,000), Vinculin (Cell Signaling, rabbit mAb 13901, 1:1,000), PRAS40 (Cell Signaling, rabbit mAb 13175, 1:1,000), INPP4B (Cell Signaling, rabbit mAb 14543, 1:1,000), IRS2 (Cell Signaling, rabbit mAb 4502, 1:1,000), HA (Covance, rabbit polyclonal PRB-101C, 1:1,000), AKT (Cell Signaling Technology, 9272, 1:1,000), AKT1 (Cell Signaling Technology, 2938, 1:1,000), AKT1 pS473 (Cell Signaling Technology, 9018, 1:1,000), AKT2 (Cell Signaling Technology, 3063, 1:1,000), AKT2 pS474 (Cell Signaling Technology, 8599, 1:1,000), PTEN (Cell Signaling Technology, 9559, 1:1,000), PHLPP1 (Abcam, ab305295, 1:1,000), and PHLPP2 (Bethyl Laboratories, A300-661A, 1:2,000).

    Techniques:

    INPP4B and FN1 interact to regulate the actin cytoskeleton. A, immunoblot demonstrating OE of INPP4B in BxPC-3. B and C, fluorescence imaging and quantitation of edge-F-actin in INPP4B -overexpressing BxPC-3 cells costained with Alexa 488 -phalloidin and DAPI. D, immunoblot of INPP4B KO HPAC cells. INPP4B KO HPAC cells treated with 20 μg/ml FN1 or vehicle assessed through F-actin IF with phalloidin staining ( E and F ) or ( G and H ) Lifeact-GFP and Hoescht 33342. I, immunoblot demonstrating INPP4B KO BxPC-3 cells. J and K, fluorescence imaging and quantitation of edge-F-actin in INPP4B KO BxPC-3 cells treated with 20 μg/ml FN1 or vehicle costained with Alexa 488 -phalloidin and DAPI. The scale bar represents 25 μm. Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. DAPI, 4′,6-diamidino-2-phenylindole; FN1, fibronectin 1; IF, immunofluorescence; INPP4B, inositol polyphosphate 4-phosphatase, type II; OE, overexpression.

    Journal: The Journal of Biological Chemistry

    Article Title: The lipid phosphatase INPP4B controls pancreatic cancer cell migration and invasion by regulating fibronectin exocytosis

    doi: 10.1016/j.jbc.2025.110716

    Figure Lengend Snippet: INPP4B and FN1 interact to regulate the actin cytoskeleton. A, immunoblot demonstrating OE of INPP4B in BxPC-3. B and C, fluorescence imaging and quantitation of edge-F-actin in INPP4B -overexpressing BxPC-3 cells costained with Alexa 488 -phalloidin and DAPI. D, immunoblot of INPP4B KO HPAC cells. INPP4B KO HPAC cells treated with 20 μg/ml FN1 or vehicle assessed through F-actin IF with phalloidin staining ( E and F ) or ( G and H ) Lifeact-GFP and Hoescht 33342. I, immunoblot demonstrating INPP4B KO BxPC-3 cells. J and K, fluorescence imaging and quantitation of edge-F-actin in INPP4B KO BxPC-3 cells treated with 20 μg/ml FN1 or vehicle costained with Alexa 488 -phalloidin and DAPI. The scale bar represents 25 μm. Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. DAPI, 4′,6-diamidino-2-phenylindole; FN1, fibronectin 1; IF, immunofluorescence; INPP4B, inositol polyphosphate 4-phosphatase, type II; OE, overexpression.

    Article Snippet: Whole-cell lysates were generated using 1× radioimmunoprecipitation assay buffer supplemented with protease inhibitor cocktail and immunoblotted with antibodies against INPP4B (1:1000 dilution; Cell Signaling Technologies, #14543), fibronectin (1:500 dilution; Cell Signaling Technologies, #26836 human specific, no crossreactivity to bovine FN1), or β-Actin (1:1000 dilution; Cell Signaling Technologies, #4967).

    Techniques: Western Blot, Fluorescence, Imaging, Quantitation Assay, Staining, Immunofluorescence, Over Expression

    FAK activation at the cell periphery is regulated by INPP4B in an FN1-dependent manner. A, to quantitate FAK activation, we manually drew a region of interest around phalloidin-stained cell edge F-actin, and this region was replicated to identify and quantitate cell edge phospho-FAK Tyr397 region. F-actin intensity was normalized across treatments to identify differences in phospho-FAK Tyr397 intensity without variations in F-actin intensity. B , representative micrographs and ( C ) quantitation of FAK activation in BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and probed for F-actin with phalloidin ( green ), DAPI ( blue ) for nucleus, and immunostained with phospho-FAK Tyr397 ( magenta ). Representative micrographs and quantitation of FAK activation in INPP4B KO HPAC (D , E ) and INPP4B KO BxPC-3 ( F and G ) cells treated with vehicle or 20 μg/ml FN1. The scale bar represents 20 μm. Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. DAPI, 4′,6-diamidino-2-phenylindole; FAK, focal adhesion kinase; FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II.

    Journal: The Journal of Biological Chemistry

    Article Title: The lipid phosphatase INPP4B controls pancreatic cancer cell migration and invasion by regulating fibronectin exocytosis

    doi: 10.1016/j.jbc.2025.110716

    Figure Lengend Snippet: FAK activation at the cell periphery is regulated by INPP4B in an FN1-dependent manner. A, to quantitate FAK activation, we manually drew a region of interest around phalloidin-stained cell edge F-actin, and this region was replicated to identify and quantitate cell edge phospho-FAK Tyr397 region. F-actin intensity was normalized across treatments to identify differences in phospho-FAK Tyr397 intensity without variations in F-actin intensity. B , representative micrographs and ( C ) quantitation of FAK activation in BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and probed for F-actin with phalloidin ( green ), DAPI ( blue ) for nucleus, and immunostained with phospho-FAK Tyr397 ( magenta ). Representative micrographs and quantitation of FAK activation in INPP4B KO HPAC (D , E ) and INPP4B KO BxPC-3 ( F and G ) cells treated with vehicle or 20 μg/ml FN1. The scale bar represents 20 μm. Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. DAPI, 4′,6-diamidino-2-phenylindole; FAK, focal adhesion kinase; FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II.

    Article Snippet: Whole-cell lysates were generated using 1× radioimmunoprecipitation assay buffer supplemented with protease inhibitor cocktail and immunoblotted with antibodies against INPP4B (1:1000 dilution; Cell Signaling Technologies, #14543), fibronectin (1:500 dilution; Cell Signaling Technologies, #26836 human specific, no crossreactivity to bovine FN1), or β-Actin (1:1000 dilution; Cell Signaling Technologies, #4967).

    Techniques: Activation Assay, Staining, Quantitation Assay, Transduction

    Intracellular FN1 localization is regulated by lysosomes. HPAC cells transfected with ( A ) pmCherry or ( B ) pmCherry-INPP4B were immunostained for FN1 ( green ) and assessed for outer/inner shell FN1 intensity. Representative micrographs and quantitation of outer/inner shell LAMP1 and FN1 intensity in INPP4B KO HPAC ( C–E ) and INPP4B KO BxPC-3 ( G–I ) cells transiently expressing LAMP1-mCherry and immunostained for FN1 ( green ). Linear regression and correlation between LAMP1-mCherry localization and FN1 localization in HPAC ( F ) or BxPC-3 ( J ) cells. The scale bar represents 15 μm ( A and B ), 5 μm ( C and G ). Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II; LAMP1, lysosome-associated membrane protein 1.

    Journal: The Journal of Biological Chemistry

    Article Title: The lipid phosphatase INPP4B controls pancreatic cancer cell migration and invasion by regulating fibronectin exocytosis

    doi: 10.1016/j.jbc.2025.110716

    Figure Lengend Snippet: Intracellular FN1 localization is regulated by lysosomes. HPAC cells transfected with ( A ) pmCherry or ( B ) pmCherry-INPP4B were immunostained for FN1 ( green ) and assessed for outer/inner shell FN1 intensity. Representative micrographs and quantitation of outer/inner shell LAMP1 and FN1 intensity in INPP4B KO HPAC ( C–E ) and INPP4B KO BxPC-3 ( G–I ) cells transiently expressing LAMP1-mCherry and immunostained for FN1 ( green ). Linear regression and correlation between LAMP1-mCherry localization and FN1 localization in HPAC ( F ) or BxPC-3 ( J ) cells. The scale bar represents 15 μm ( A and B ), 5 μm ( C and G ). Data represent ±SD from 90 to 100 cells assessed from three independent experiments per treatment condition. FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II; LAMP1, lysosome-associated membrane protein 1.

    Article Snippet: Whole-cell lysates were generated using 1× radioimmunoprecipitation assay buffer supplemented with protease inhibitor cocktail and immunoblotted with antibodies against INPP4B (1:1000 dilution; Cell Signaling Technologies, #14543), fibronectin (1:500 dilution; Cell Signaling Technologies, #26836 human specific, no crossreactivity to bovine FN1), or β-Actin (1:1000 dilution; Cell Signaling Technologies, #4967).

    Techniques: Transfection, Quantitation Assay, Expressing, Membrane

    The INPP4B–TRPML-1 axis can mediate lysosomal exocytosis and influence FN1 secretion. A, representative micrographs and ( B and C ) quantitation of outer/inner shell LAMP1 and FN1 intensity in BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and transiently expressing LAMP1-mCherry ( red ) and immunostained for endogenous FN1 ( green ). Cells were treated with either vehicle or ML-SI3. The scale bar represents 5 μm. INPP4B KO HPAC ( D ) and INPP4B KO BxPC-3 ( E ) cells were assessed for extracellular FN1 levels after 24 h of incubation. F, BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and treated with vehicle or ML-SI3 for 24 h followed by extracellular FN1 measurement. G and H, BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B incubated in 0.1% FBS containing DMEM media for 24 h followed by collection of conditioned media and FN1 immunoblotting compared with recombinant FN1. Data represent 90 to 100 cells assessed from three independent experiments per treatment condition ( A–C ) or three independent experiments per treatment condition ( D–H ) . DMEM, Dulbecco's modified Eagle's medium; FBS, fetal bovine serum; FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II; LAMP1, lysosome-associated membrane protein 1; TRPML-1, transient receptor potential cation channel mucolipin subfamily member 1.

    Journal: The Journal of Biological Chemistry

    Article Title: The lipid phosphatase INPP4B controls pancreatic cancer cell migration and invasion by regulating fibronectin exocytosis

    doi: 10.1016/j.jbc.2025.110716

    Figure Lengend Snippet: The INPP4B–TRPML-1 axis can mediate lysosomal exocytosis and influence FN1 secretion. A, representative micrographs and ( B and C ) quantitation of outer/inner shell LAMP1 and FN1 intensity in BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and transiently expressing LAMP1-mCherry ( red ) and immunostained for endogenous FN1 ( green ). Cells were treated with either vehicle or ML-SI3. The scale bar represents 5 μm. INPP4B KO HPAC ( D ) and INPP4B KO BxPC-3 ( E ) cells were assessed for extracellular FN1 levels after 24 h of incubation. F, BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and treated with vehicle or ML-SI3 for 24 h followed by extracellular FN1 measurement. G and H, BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B incubated in 0.1% FBS containing DMEM media for 24 h followed by collection of conditioned media and FN1 immunoblotting compared with recombinant FN1. Data represent 90 to 100 cells assessed from three independent experiments per treatment condition ( A–C ) or three independent experiments per treatment condition ( D–H ) . DMEM, Dulbecco's modified Eagle's medium; FBS, fetal bovine serum; FN1, fibronectin 1; INPP4B, inositol polyphosphate 4-phosphatase, type II; LAMP1, lysosome-associated membrane protein 1; TRPML-1, transient receptor potential cation channel mucolipin subfamily member 1.

    Article Snippet: Whole-cell lysates were generated using 1× radioimmunoprecipitation assay buffer supplemented with protease inhibitor cocktail and immunoblotted with antibodies against INPP4B (1:1000 dilution; Cell Signaling Technologies, #14543), fibronectin (1:500 dilution; Cell Signaling Technologies, #26836 human specific, no crossreactivity to bovine FN1), or β-Actin (1:1000 dilution; Cell Signaling Technologies, #4967).

    Techniques: Quantitation Assay, Transduction, Expressing, Incubation, Western Blot, Recombinant, Modification, Membrane

    INPP4B-mediated migration and invasion are dependent on FN1. A–D, representative images and quantitation of INPP4B KO in HPAC or BxPC-3 with vehicle or 2 μg/ml FN1, assessed for transwell migration or transwell invasion. E and F, conditioned media collected from BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and applied to parental BxPC-3 cells for transwell migration. G–J, conditioned media collected from BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B , immunodepleted with anti-FN or mock IgG antibody and applied to parental BxPC-3 cells for transwell migration. Data represent at least three independent experiments per treatment condition. FN1, fibronectin 1; IgG, immunoglobulin G; INPP4B, inositol polyphosphate 4-phosphatase, type II.

    Journal: The Journal of Biological Chemistry

    Article Title: The lipid phosphatase INPP4B controls pancreatic cancer cell migration and invasion by regulating fibronectin exocytosis

    doi: 10.1016/j.jbc.2025.110716

    Figure Lengend Snippet: INPP4B-mediated migration and invasion are dependent on FN1. A–D, representative images and quantitation of INPP4B KO in HPAC or BxPC-3 with vehicle or 2 μg/ml FN1, assessed for transwell migration or transwell invasion. E and F, conditioned media collected from BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B and applied to parental BxPC-3 cells for transwell migration. G–J, conditioned media collected from BxPC-3 cells transduced with pSMAL or pSMAL-INPP4B , immunodepleted with anti-FN or mock IgG antibody and applied to parental BxPC-3 cells for transwell migration. Data represent at least three independent experiments per treatment condition. FN1, fibronectin 1; IgG, immunoglobulin G; INPP4B, inositol polyphosphate 4-phosphatase, type II.

    Article Snippet: Whole-cell lysates were generated using 1× radioimmunoprecipitation assay buffer supplemented with protease inhibitor cocktail and immunoblotted with antibodies against INPP4B (1:1000 dilution; Cell Signaling Technologies, #14543), fibronectin (1:500 dilution; Cell Signaling Technologies, #26836 human specific, no crossreactivity to bovine FN1), or β-Actin (1:1000 dilution; Cell Signaling Technologies, #4967).

    Techniques: Migration, Quantitation Assay, Transduction