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CAR-T Cell Therapy for Triple-Negative Breast Cancer: Preclinical Insights for Immunotherapy Optimization in Obesity
CAR-T Cell Therapy for Triple-Negative Breast Cancer: Preclinical Insights for Immunotherapy Optimization in Obesity
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105307
- ISBN
- 9798270290399
- DDC
- 616.99
- 서명/저자
- CAR-T Cell Therapy for Triple-Negative Breast Cancer: Preclinical Insights for Immunotherapy Optimization in Obesity
- 발행사항
- [Sl] : The University of North Carolina at Chapel Hill, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 111 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-07, Section: B.
- 주기사항
- Advisor: Hursting, Stephen.
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2025.
- 초록/해제
- 요약Immunotherapy is a type of treatment that harnesses a patient's immune system to target diseases like cancer. Chimeric antigen receptor (CAR)-T cell therapy relies on T cells engineered to target antigens expressed on cancer cells and has radically improved treatment for some hematological cancers and is gaining traction in solid tumors. For CAR-T cell therapy to be effective, cancers must express the appropriate antigen. B7-H3 is an immunosuppressive protein often expressed by cancer cells that is targetable with B7-H3.CAR-T cell therapy. Obesity-derived inflammatory signals promote tumor growth, dampen antitumor immunity, and promote expression of immunosuppressive proteins. However, the potential for obesity to alter efficacy of CAR-T cell therapy is unknown. Hence, we sought to understand whether obesity affects activity and durability of B7-H3.CAR-T cell therapy, and whether obesity relies on the immunosuppressive protein, B7-H3, for triple-negative breast cancer (TNBC) growth.We utilized preclinical models to determine the relationship between obesity-associated cytokine signaling and B7-H3. We discovered that cytokines like TNF and IFNγ upregulate B7-H3 in both human and murine TNBC cell lines. We used B7-H3 suppressed cells to determine that obesity promotes TNBC growth by suppressing antitumor immunity through B7-H3 expression. Next, we demonstrated that obesity impairs both B7-H3.CAR-T cell therapy activity and durability. We showed that B7-H3.CAR-T cell therapy can control tumor growth in a syngeneic model of TNBC and that despite similar in vitro cell killing activity, T cells from obese mice harbor important transcriptomic and phenotypic differences. We also show that obesity impairs the formation of tissue-resident memory-like T cells and that obesity is detrimental to survival following rechallenge. Taken together this work demonstrates that obesity is an important but understudied determinant of B7-H3.CAR-T cell therapy response and durability, thus paving the way for future research to study obesity as a variable in large scale clinical immunotherapy settings.
- 일반주제명
- Oncology
- 일반주제명
- Biochemistry
- 일반주제명
- Public health
- 키워드
- Obesity
- 키워드
- Immune system
- 키워드
- Cancers
- 키워드
- T cells
- 기타저자
- The University of North Carolina at Chapel Hill Nutrition
- 기본자료저록
- Dissertations Abstracts International. 87-07B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798270290399
■035 ▼a(MiAaPQ)AAI32283312
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a616.99
■1001 ▼aMalian, Hannah Marie.
■24510▼aCAR-T Cell Therapy for Triple-Negative Breast Cancer: Preclinical Insights for Immunotherapy Optimization in Obesity
■260 ▼a[Sl]▼bThe University of North Carolina at Chapel Hill▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a111 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-07, Section: B.
■500 ▼aAdvisor: Hursting, Stephen.
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2025.
■520 ▼aImmunotherapy is a type of treatment that harnesses a patient's immune system to target diseases like cancer. Chimeric antigen receptor (CAR)-T cell therapy relies on T cells engineered to target antigens expressed on cancer cells and has radically improved treatment for some hematological cancers and is gaining traction in solid tumors. For CAR-T cell therapy to be effective, cancers must express the appropriate antigen. B7-H3 is an immunosuppressive protein often expressed by cancer cells that is targetable with B7-H3.CAR-T cell therapy. Obesity-derived inflammatory signals promote tumor growth, dampen antitumor immunity, and promote expression of immunosuppressive proteins. However, the potential for obesity to alter efficacy of CAR-T cell therapy is unknown. Hence, we sought to understand whether obesity affects activity and durability of B7-H3.CAR-T cell therapy, and whether obesity relies on the immunosuppressive protein, B7-H3, for triple-negative breast cancer (TNBC) growth.We utilized preclinical models to determine the relationship between obesity-associated cytokine signaling and B7-H3. We discovered that cytokines like TNF and IFNγ upregulate B7-H3 in both human and murine TNBC cell lines. We used B7-H3 suppressed cells to determine that obesity promotes TNBC growth by suppressing antitumor immunity through B7-H3 expression. Next, we demonstrated that obesity impairs both B7-H3.CAR-T cell therapy activity and durability. We showed that B7-H3.CAR-T cell therapy can control tumor growth in a syngeneic model of TNBC and that despite similar in vitro cell killing activity, T cells from obese mice harbor important transcriptomic and phenotypic differences. We also show that obesity impairs the formation of tissue-resident memory-like T cells and that obesity is detrimental to survival following rechallenge. Taken together this work demonstrates that obesity is an important but understudied determinant of B7-H3.CAR-T cell therapy response and durability, thus paving the way for future research to study obesity as a variable in large scale clinical immunotherapy settings.
■590 ▼aSchool code: 0153.
■650 4▼aOncology
■650 4▼aBiochemistry
■650 4▼aPublic health
■653 ▼aObesity
■653 ▼aImmune system
■653 ▼aCancers
■653 ▼aCytokine signaling
■653 ▼aT cells
■690 ▼a0992
■690 ▼a0487
■690 ▼a0573
■71020▼aThe University of North Carolina at Chapel Hill▼bNutrition.
■7730 ▼tDissertations Abstracts International▼g87-07B.
■790 ▼a0153
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360117▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


