SWI/SNF family mutations in advanced NSCLC: genetic characteristics and immune checkpoint inhibitors' therapeutic implication
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View abstract on PubMed
Summary
This summary is machine-generated.SWI/SNF mutations are common in Chinese lung cancer and impact treatment. Immunotherapy offers better survival than chemotherapy for SWI/SNF-mutant non-small-cell lung cancer (NSCLC) patients, especially those with TP53 mutations.
Area Of Science
- Oncology
- Genomics
- Cancer Research
Background
- SWItch/Sucrose NonFermentable (SWI/SNF) mutations are linked to poor prognosis in cancer.
- The genetic profile of SWI/SNF mutations in Chinese non-small-cell lung cancer (NSCLC) and optimal treatments remain unclear.
Purpose Of The Study
- To analyze SWI/SNF family mutations in Chinese NSCLC patients.
- To investigate the efficacy of immunotherapy in SWI/SNF-mutant NSCLC.
- To identify patient subgroups benefiting from immunotherapy.
Main Methods
- Genomic sequencing of 2027 lung tumor samples from China.
- Clinical data analysis of 519 NSCLC patients receiving immunotherapy.
- Validation in publicly available cohorts (POPLAR/OAK).
Main Results
- Approximately 15% of Chinese NSCLC patients have SWI/SNF mutations, mutually exclusive with EGFR mutations.
- SWI/SNF-mutant NSCLC patients showed improved survival with chemoimmunotherapy versus chemotherapy alone (P=0.028).
- SWI/SNF mutations often co-occur with TP53 or STK11/KEAP1, which can guide immunotherapy selection.
Conclusions
- SWI/SNF alterations are significant in Chinese NSCLC.
- Immunotherapy demonstrates superior outcomes compared to chemotherapy for SWI/SNF-mutant NSCLC.
- TP53 and STK11/KEAP1 mutations are key biomarkers for personalized immunotherapy in SWI/SNF-mutant NSCLC.
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