ArticleScientific reports2025
SHP2 in tumor-associated macrophages prompted the progression of colorectal cancer via modulating STAT3/PI3K signaling induced PD-1-mediated CAR-T cell apoptosis.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- SHP2 as a pivotal modulator of the tumor microenvironment in gastrointestinal cancers: from mechanisms to targeted therapies.Journal of translational medicine · 2026Review
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5 authors.
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Abstract
To investigate the effect of tumor-associated macrophage tyrosine phosphatase on the progression of colorectal cancer(CRC) and its mechanism. Bioinformatics analysis was used to analyse genes specifically expressed in CRC; The SW480 cell line of CRC and THP-1 macrophages were co-cultured. The effect of SHP2 on CRC was tested by tumor-bearing nude mice model. The relative expression levels of p-SHP2, p-STAT3, p-PI3K, p-Src, MMP2, MMP9, Cyclin D1, CD9, TSG101, CD63, PD-L1,Cyclin A and PCNA in THP-1 cells were detected by Western blot. Cell migration assay and Transwell migration and invasion assay were performed to examine the migration and invasion ability of SW480 cells, and monoclonal proliferation assay was used to detect the proliferation ability of SW480 cells. A co-culture system of CRC cell line SW480, macrophages THP-1 and CAR-T cells was constructed, and the expression of Bax, Caspase-3 and Caspase-9 in CAR-T cells was detected by Western blot. In addition, the relative fluorescence intensity of Bax in CAR-T cells was detected by immunofluorescence staining. Bioinformatics analysis found that SHP2 is highly expressed specifically in CRC; Specific overexpression of SHP2 in THP-1 cells could promote the expression of p-STAT3, p-PI3K, p-Src, MMP2, MMP9, Cyclin D1, Cyclin A and PCNA as well as the expression of CD9, TSG101, CD63 and PD-L1 in exosomes, and promote the proliferation, migration and invasion ability of SW480 cells. In addition, SHP2 can promote the expression of Bax, Caspase-3 and Caspase-9 in CAR-T cells. Activation of TAM-intrinsic SHP2 is significantly associated with upregulation of STAT3/PI3K signaling and PD-1-related CAR-T cell apoptosis, suggesting that it participates in shaping the immunosuppressive microenvironment of CRC and promoting disease progression. This study provides strong rationale for leveraging macrophage SHP2 as an entry point to optimize immunotherapy.
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