GEO series
Effects of overexpression of PTPN21 on gene expression of Jurkat cells
GSE253979
Homo sapiens
Expression profiling by high throughput sequencing
12 samples
2025/03/26
GPL24676
Summary
Acute Lymphoblastic Leukemia (ALL) is a malignant disease characterized by the abnormal growth of immature lymphocytes. The high resistance to chemotherapy drugs and frequent recurrence contribute to low long-term survival in ALL patients. Presently, PTPN21 is associated with cancer development. Our research revealed that elevated PTPN21 levels hindered the apoptosis of ALL cells triggered by chemotherapy drugs like vincristine and daunorubicin. Through a series of laboratory experiments, we established that PTPN21 regulates ALL drug resistance to vincristine via GADD45A and the JNK signaling pathway. Additionally, the over-expression of PTPN21 reversed the cell cycle arrest in the G2/M phase induced by vincristine. As a phosphatase, targeting PTPN21 inhibition may offer a new approach for addressing drug resistance in recurrent and refractory ALL in the future.
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Paper (PMID 40305474) ↗
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