인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Disparate pathogenic mechanisms complicate precision-medicine efforts to treat diffuse large B-cell lymphoma (DLBCL), the most common lymphoma diagnosis. Though potentially curable with frontline combination chemoimmunotherapy, DLBCL carries persistently poor prognosis for those with relapsed or refractory (rel/ref) disease, despite recent advances in immunotherapy. Here, we build on recent findings implicating gain-of-function mutations in the BCL10 signaling protein as drivers of resistance to Bruton's tyrosine kinase (BTK) inhibitors. We show mutant BCL10-driven DLBCL is resistant to multiple additional drug classes, demonstrating urgency to derive mechanistically rooted strategies to overcome undruggable BCL10 mutants that stabilize BTK-independent signaling filaments upstream of NF-kB activation. BCL10 mutants promote a cytokine-reinforced positive feedback loop of lymphomagenesis driving not just NF-kB but multiple additional pathways converging on diffuse activation of oncogenic transcription factors. Up-regulation of anti-apoptotic genes increases mitochondrial membrane potential, underlying multidrug resistance. Increased expression of BCL2, BCL2L1 (BCL-XL), and BCL2A1 (BFL1) drives resistance to venetoclax, but expression can be overcome by the potent non-covalent BTK inhibitor pirtobrutinib. Venetoclax plus pirtobrutinib synergized in overcoming resistance and potently killed BCL10-mutant lymphomas in vitro and in vivo. BTK therefore retains key roles protecting DLBCL from apoptosis even when downstream activation of the BCL10 signaling complex activates NF-kB independently.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.