前列腺癌中的特醇差异效应:血管新生和短期和长期治疗
Felipe Rabelo Santos1, Isabela Maria Urra Rossetto1, Fabio Montico1
1Department of Structural and Functional Biology-Institute of Biology, State University of Campinas (UNICAMP), 255 Monteiro Lobato St, Campinas, SP, 13083-862, Brazil.
Journal of molecular histology
|March 29, 2024
概括
在小鼠中,Tempol治疗延迟了前列腺癌的进展. 然而,长期使用促进了亲血管效应和 stromal 不平衡,表明对前列腺腺癌的复杂影响.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 前列腺癌 (PCa) 是全球男性癌症相关死亡的主要原因.
- PCa的进展涉及复杂的过程,包括血管生成,炎症和氧化应激.
- 了解针对这些途径的治疗干预措施对于PCa管理至关重要.
研究的目的:
- 研究短期和长期Tempol治疗对TRAMP小鼠前列腺腺癌进展的影响.
- 评估Tempol在不同PCa阶段对血管生成,生殖和 stromal重塑过程的影响.
- 分析与PCa进展和治疗反应相关的特定分子标记.
主要方法:
- 用TRAMP小鼠来建模前列腺腺癌的进展.
- 在PCa的早期和晚期,小鼠接受了口服Tempol 50 mg/kg的治疗.
- 进行了组织病理学分析和分子标记物量化 (CD31,VEGFR2,VEGF,TGF-β1,VE-cadherin,vimentin).
主要成果:
- 在所有治疗组中,门治疗缓解了前列腺组织病理性病变的进展.
- 坦波尔增加了血管生成分子CD31和VEGFR2的相对频率,特别是在长期治疗时.
- 门上调节了亲血管性和脑膜重塑分子 (VEGF,TGF-β1,VE-cadherin,vimentin),特别是在T8-16组中.
结论:
- 坦波尔治疗在TRAMP小鼠的背侧叶中显示出延迟前列腺病变的进展.
- 长期使用Tempol诱导了亲血管效应和腺体流体微环境失衡.
- 这些发现凸显了Tempol在前列腺癌进展中的复杂,阶段依赖的作用.
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