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Targeting the Thyroid-Stimulating Hormone Receptor (TSHR) in Thyroid Cancer
Targeting the Thyroid-Stimulating Hormone Receptor (TSHR) in Thyroid Cancer
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103056
- ISBN
- 9798315793366
- DDC
- 615
- 서명/저자
- Targeting the Thyroid-Stimulating Hormone Receptor (TSHR) in Thyroid Cancer
- 발행사항
- [Sl] : The University of Alabama at Birmingham, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 172 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Lapi, Suzanne E.
- 학위논문주기
- Thesis (Ph.D.)--The University of Alabama at Birmingham, 2025.
- 초록/해제
- 요약Radioactive iodine (RAI) has been effective in the treatment of thyroid cancer, the most common endocrine neoplasia, since its introduction into clinical use over eighty years ago. However, not all patients benefit from RAI. Up to 20% of patients with well-differentiated thyroid cancer (WDTC) become radioactive iodine refractory (RAI-R). These RAI-R patients have 5-year survival rates of 50% and 10-year survival rates of 10%. In addition, more aggressive subtypes including oncocytic thyroid carcinoma (OC), poorly differentiated thyroid carcinoma (PDTC), and anaplastic thyroid carcinoma (ATC) are less responsive to RAI therapy. Despite accounting for less than 5% of annual thyroid cancer cases, PDTC and ATC represent more than half of annual thyroid cancer mortality.To address the need for new diagnostic and therapeutic strategies in these patients, this study explores the thyroid-stimulating hormone receptor (TSHR) as an alternative target in thyroid cancer. We described the frequency of TSHR expression in OC (62%), PDTC (58%), and ATC (0%) relative to established expression patterns in WDTC (90%), with particular emphasis placed on expression patterns in RAI-R disease. As thyroid cancer loses endogenous TSHR expression in monolayer cell culture, we established cell lines with stable TSHR expression. We used these cell lines to evaluate TSHR-targeted radiopharmaceuticals. We designed PET radiopharmaceuticals based on two recombinant human thyroid-stimulating hormone analogues, TR1402 and thyrotropin-alfa, radiolabeled with 89Zr (t1/2 = 78.4 h, β+=23%). We performed in vitro assessments of these TSHR-targeted tracers including cell uptake, receptor blocking, internalization, and binding affinity. We evaluated tumor uptake and biodistribution with in vivo PET imaging and ex vivo biodistribution using a subcutaneous xenograft model established in male and female athymic nude mice. The results of these studies show targeting the TSHR is a promising approach for RAI-R and aggressive thyroid cancers. The PET tracers in this study can be used as the basis for future work to design a theranostic TSHR-targeted approach.
- 일반주제명
- Pharmaceutical sciences
- 일반주제명
- Chemistry
- 일반주제명
- Oncology
- 키워드
- Thyroid cancer
- 기타저자
- The University of Alabama at Birmingham Pharmacology and Toxicology
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798315793366
■035 ▼a(MiAaPQ)AAI31932654
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a615
■1001 ▼aGimblet, Grayson Robert.
■24510▼aTargeting the Thyroid-Stimulating Hormone Receptor (TSHR) in Thyroid Cancer
■260 ▼a[Sl]▼bThe University of Alabama at Birmingham▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a172 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Lapi, Suzanne E.
■5021 ▼aThesis (Ph.D.)--The University of Alabama at Birmingham, 2025.
■520 ▼aRadioactive iodine (RAI) has been effective in the treatment of thyroid cancer, the most common endocrine neoplasia, since its introduction into clinical use over eighty years ago. However, not all patients benefit from RAI. Up to 20% of patients with well-differentiated thyroid cancer (WDTC) become radioactive iodine refractory (RAI-R). These RAI-R patients have 5-year survival rates of 50% and 10-year survival rates of 10%. In addition, more aggressive subtypes including oncocytic thyroid carcinoma (OC), poorly differentiated thyroid carcinoma (PDTC), and anaplastic thyroid carcinoma (ATC) are less responsive to RAI therapy. Despite accounting for less than 5% of annual thyroid cancer cases, PDTC and ATC represent more than half of annual thyroid cancer mortality.To address the need for new diagnostic and therapeutic strategies in these patients, this study explores the thyroid-stimulating hormone receptor (TSHR) as an alternative target in thyroid cancer. We described the frequency of TSHR expression in OC (62%), PDTC (58%), and ATC (0%) relative to established expression patterns in WDTC (90%), with particular emphasis placed on expression patterns in RAI-R disease. As thyroid cancer loses endogenous TSHR expression in monolayer cell culture, we established cell lines with stable TSHR expression. We used these cell lines to evaluate TSHR-targeted radiopharmaceuticals. We designed PET radiopharmaceuticals based on two recombinant human thyroid-stimulating hormone analogues, TR1402 and thyrotropin-alfa, radiolabeled with 89Zr (t1/2 = 78.4 h, β+=23%). We performed in vitro assessments of these TSHR-targeted tracers including cell uptake, receptor blocking, internalization, and binding affinity. We evaluated tumor uptake and biodistribution with in vivo PET imaging and ex vivo biodistribution using a subcutaneous xenograft model established in male and female athymic nude mice. The results of these studies show targeting the TSHR is a promising approach for RAI-R and aggressive thyroid cancers. The PET tracers in this study can be used as the basis for future work to design a theranostic TSHR-targeted approach.
■590 ▼aSchool code: 0005.
■650 4▼aPharmaceutical sciences
■650 4▼aChemistry
■650 4▼aOncology
■653 ▼aAnaplastic thyroid carcinoma
■653 ▼aOncocytic thyroid carcinoma
■653 ▼aRadioactive iodine
■653 ▼aThyroid cancer
■690 ▼a0572
■690 ▼a0485
■690 ▼a0992
■71020▼aThe University of Alabama at Birmingham▼bPharmacology and Toxicology.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0005
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356888▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


