ArticleActa pharmacologica Sinica2021
PTPL1 suppresses lung cancer cell migration via inhibiting TGF-β1-induced activation of p38 MAPK and Smad 2/3 pathways and EMT.
Article in Acta pharmacologica Sinica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 26 citations in OpenAlex.
- [Anemoside B4 inhibits non-small cell lung cancer metastasis by modulating epithelial-mesenchymal transition mediated by the MAPK and Keap1/Nrf2 signaling pathways].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2026Article
- Abrine targets ERK to suppress EMT and lung metastasis model via MAPKs and Nrf2/Keap-1/HO-1 signaling.Frontiers in immunology · 2026Article
- Non-small cell lung cancer map and analysis: exploring interconnected oncogenic signal integrators.Mammalian genome : official journal of the International Mammalian Genome Society · 2025Article
- Single cell transcriptomic analysis reveals tumor immune infiltration by macrophage cells gene signature in lung adenocarcinoma.Discover oncology · 2025Article
- In Vitro Investigation of the Anti-Hepatocellular Carcinoma Activity of Peptides Derived From Quinoa (Chenopodium quinoa Willd) Bran.Plant foods for human nutrition (Dordrecht, Netherlands) · 2025Article
- Pulsed electromagnetic fields inhibit IL-37 to alleviate CD8Apoptosis : an international journal on programmed cell death · 2024Article
- Arsenic disulfide promoted the demethylation ofPeerJ · 2024Article
- Cross-Talk between the TGF-β and Cell Adhesion Signaling Pathways in Cancer.International journal of medical sciences · 2024Review
- PTPN13 Participates in the Regulation of Epithelial-Mesenchymal Transition and Platinum Sensitivity in High-Grade Serous Ovarian Carcinoma Cells.International journal of molecular sciences · 2023Article
- Hesperidin inhibits tobacco smoke-induced pulmonary cell proliferation and EMT in mouse lung tissues via the p38 signaling pathway.Oncology letters · 2023Article
- GLUT3 Promotes Epithelial-Mesenchymal Transition via TGF-β/JNK/ATF2 Signaling Pathway in Colorectal Cancer Cells.Biomedicines · 2022Article
- circFAM120B functions as a tumor suppressor in esophageal squamous cell carcinoma via the miR-661/PPM1L axis and the PKR/p38 MAPK/EMT pathway.Cell death & disease · 2022Article
- Critical roles of PTPN family members regulated by non-coding RNAs in tumorigenesis and immunotherapy.Frontiers in oncology · 2022Review
- Atypical p38 Signaling, Activation, and Implications for Disease.International journal of molecular sciences · 2021Review
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11 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Epithelial-mesenchymal transition (EMT) enables dissemination of neoplastic cells and onset of distal metastasis of primary tumors. However, the regulatory mechanisms of EMT by microenvironmental factors such as transforming growth factor-β (TGF-β) remain largely unresolved. Protein tyrosine phosphatase L1 (PTPL1) is a non-receptor protein tyrosine phosphatase that plays a suppressive role in tumorigenesis of diverse tissues. In this study we investigated the role of PTPL1/PTPN13 in metastasis of lung cancer and the signaling pathways regulated by PTPL1 in terms of EMT of non-small cell lung cancer (NSCLC) cells. We showed that the expression of PTPL1 was significantly downregulated in cancerous tissues of 23 patients with NSCLC compared with adjacent normal tissues. PTPL1 expression was positively correlated with overall survival of NSCLC patients. Then we treated A549 cells in vitro with TGF-β1 (10 ng/mL) and assessed EMT. We found that knockdown of PTPL1 enhanced the migration and invasion capabilities of A549 cells, through enhancing TGF-β1-induced EMT. In nude mice bearing A549 cell xenografts, knockdown of PTPL1 significantly promoted homing of cells and formation of tumor loci in the lungs. We further revealed that PTPL1 suppressed TGF-β-induced EMT by counteracting the activation of canonical Smad2/3 and non-canonical p38 MAPK signaling pathways. Using immunoprecipitation assay we demonstrated that PTPL1 could bind to p38 MAPK, suggesting that p38 MAPK might be a direct substrate of PTPL1. In conclusion, these results unravel novel mechanisms underlying the regulation of TGF-β signaling pathway, and have implications for prognostic assessment and targeted therapy of metastatic lung cancer.
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