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
Antigen-naive IgM-producing B cells are atheroprotective, whereas mature B cells producing class-switched antibodies promote atherosclerosis. Activation-induced cytidine deaminase (AID), which mediates class switch recombination (CSR), would thus be expected to foster atherosclerosis. Yet, AID also plays a major role in the establishment of B cell tolerance. We sought to define whether AID affects atherosclerotic plaque formation. We generated Ldlr<sup>-/-</sup> chimeras transplanted with bone marrow from Aicda<sup>-/-</sup> or wild-type (WT) mice, fed a HFD for 14 weeks. Decreased B cell maturation in Ldlr<sup>-/-</sup>Aicda<sup>-/-</sup> mice was demonstrated by 50% reduction in splenic and aortic BAFFR expression, a key signaling component of B2 cell maturation. This was associated with increased plasma IgM in Ldlr<sup>-/-</sup>Aicda<sup>-/-</sup> compared with Ldlr<sup>-/-</sup>WT animals. Importantly, Ldlr<sup>-/-</sup>Aicda<sup>-/-</sup> mice had reduced atherosclerotic lesion area (0.20 ± 0.03mm<sup>2</sup>) compared with Ldlr<sup>-/-</sup>WT (0.30 ± 0.04mm<sup>2</sup>, P < 0.05), although no differences in plaque composition were noted between groups. In addition, immunofluorescence analysis revealed increased splenic B and T cell areas independent of cell number. AID depletion directly inhibits atherosclerotic plaque formation.
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.