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Targeting the Tumor Stroma Using a Monoclonal Antibody Platform Technology- [electronic resource]
Targeting the Tumor Stroma Using a Monoclonal Antibody Platform Technology - [electronic r...
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Targeting the Tumor Stroma Using a Monoclonal Antibody Platform Technology- [electronic resource]
자료유형  
 학위논문파일 국외
최종처리일시  
20240214095839
ISBN  
9798379924157
DDC  
615
저자명  
Hintz, Hallie McKee.
서명/저자  
Targeting the Tumor Stroma Using a Monoclonal Antibody Platform Technology - [electronic resource]
발행사항  
[S.l.]: : University of Minnesota., 2021
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2021
형태사항  
1 online resource(196 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
주기사항  
Advisor: LeBeau, Aaron M.;Hiasa, Hiroshi.
학위논문주기  
Thesis (Ph.D.)--University of Minnesota, 2021.
사용제한주기  
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초록/해제  
요약1 in 9 men will be diagnosed with prostate cancer during their lifetime and it remains the second leading cause of cancer death among American men. Men who fail standard-of-care androgen deprivation therapy (ADT) and progress to metastatic castration resistant prostate cancer (mCRPC) are left with few therapeutic options. Current second line therapies only provide a small survival benefit and there is a critical unmet need for new and innovative approaches to treat mCRPC. Imaging is a crucial aspect of mCRPC clinical management used for the detection of recurrent or distant disease. The development of new therapies is also dependent on accurate imaging modalities for patient staging and evaluating treatment response. Our research shows fibroblast activation protein alpha (FAP) is a relevant target for imaging and treating mCRPC. FAP is emerging as the next pan-cancer target given its upregulated expression in cancer associated fibroblasts (CAFs) and localization to the tumor microenvironment. Here we document the discovery and validation of a monoclonal antibody that selectively binds to FAP. The lead antibody, B12, was identified from a naive murine single-chain variable fragment antibody phage display library screened against recombinant human FAP. The heavy and light chains of B12 were cloned into full-length human immunoglobulin 1 vectors and expressed as a chimeric monoclonal antibody (B12 mAb). B12 mAb was shown to detect FAP expression in cell lines and was rapidly internalized by FAP-expressing cells in vitro. B12 mAb demonstrated cross-reactivity with murine FAP, but not with the highly homologous protease human dipeptidyl peptidase IV. PET/CT imaging with [89Zr]Zr-B12 mAb demonstrated high tumor uptake and long-term retention of the probe in several preclinical animal models. Furthermore, we show its superiority to other clinically investigated imaging probes which suggests clinical translation of B12 mAb as a non-invasive mCRPC imaging probe. Next, we evaluated the therapeutic potential of B12 mAb as an antibody-dependent cell-mediated cytotoxicity (ADCC) inducing agent in combination with an engineered NK-92MICD64 cell therapy. The immunotherapy demonstrated selective cytotoxicity in vitro and treatment effectively controlled tumor growth in an animal model. Furthermore, we engineered B12 mAb as an antibody-drug conjugate (ADC) and showed cytotoxic effect in several in vitro and in vivo solid tumor models. Overall, this research represents a platform technology for the development of theranostics targeting FAP that could provide urgently needed therapies and imaging probes for mCRPC patients.
일반주제명  
Pharmacology.
일반주제명  
Molecular biology.
일반주제명  
Immunology.
일반주제명  
Oncology.
키워드  
Cancer immunotherapy
키워드  
Molecular imaging
키워드  
Monoclonal antibody
키워드  
Natural killer cell
키워드  
Prostate cancer
키워드  
Tumor microenvironment
기타저자  
University of Minnesota Pharmacology
기본자료저록  
Dissertations Abstracts International. 85-01B.
기본자료저록  
Dissertation Abstract International
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