인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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
Hepatocellular carcinoma (HCC) is one of the most frequent causes of cancer-related death worldwide. Mirroring the complexity of human HCC with its underlying liver disease requires multilocular orthotopic tumor models in mice, where objective tumor quantification in vivo is challenging, especially longitudinally. We investigated magnetic resonance imaging (MRI) to noninvasively quantify orthotopic HCC in an immunotherapy setting. Orthotopic HCCs were induced in diethylnitrosamine (DEN)-injected mice with either CCl4-induced hepatic fibrosis or dietary metabolic dysfunction-associated steatotic liver disease (MASLD) to mirror the most frequent etiologies. Growth kinetics over the course of immune checkpoint inhibitor treatment with anti-Programmed Death Ligand 1 (αPD-L1) were modeled by measuring the overall tumor burden (OTB) using MRI and compared to untreated animals. Tumor parameters, such as tumor volume, liver weights at sacrifice and largest tumor diameter were analyzed. We demonstrate that MRI is a reliable imaging tool for both pretreatment tumor confirmation as well as the longitudinal quantification of overall tumor burden under investigational treatment. While measuring only the largest tumor diameter yielded significant differences between αPD-L1-treated animals and untreated controls in the long-term setting, these trends in tumor response were not confirmed by MRI-based OTB measurement. In MASLD-HCC, tumors did not respond to PD-L1 blockade, thus confirming the OTB data and reflecting the immunotherapy resistance observed in the human setting and highlighting the translational relevance of the model. Orthotopic fibrosis-HCC and MASLD-HCC mouse models can be enhanced through the longitudinal use of MRI while reducing endpoints and animal numbers. The DEN-CCl4 and DEN-Western Diet models mirror the αPD-L1 response from the human setting and require OTB measurement, because largest diameters may underestimate the total tumor mass in orthotopic HCC.
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.
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