炎症酶激活有助于卵巢癌中对西斯普拉丁的耐药性
Josiany Carlos de Souza1,2, Tatiana Massariol Pimenta3, Bárbara da Silva Martins1
1PhD Program in Biotechnology/RENORBIO, Health Sciences Center, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.
Journal of ovarian research
|December 13, 2025
概括
炎症酶激活和热致死有助于卵巢癌的化学抵抗. 抑制这些通路,特别是NLRP1和NLRP3,可能会改善上皮卵巢癌 (EOC) 的治疗结果.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 表皮卵巢癌 (EOC) 经常复发并发展为化学抵抗.
- 了解驱动EOC进展和治疗耐药性的机制至关重要.
- 这项研究研究了炎症体 (NLRP1,NLRP3) 和EOC中的炎症的作用.
研究的目的:
- 为了研究NLRP1和NLRP3炎症和炎症酶在上皮卵巢癌 (EOC) 中的作用.
- 了解EOC进展和对西斯普拉丁 (CDDP) 的化学抗药性背后的机制.
主要方法:
- 评估的细胞活力 (MTT) 和计算的IC50值在CDDP处理下的EOC细胞系.
- 使用ELISA测量细胞因子水平 (IL-1β,IL-6,TNFα),并通过Caspase-Glo® 1测试通过Caspase-1激活.
- 分析了细胞死亡 (Annexin V/PI染色),膜孔形成 (PI吸收) 和细胞迁移 (伤口愈合试验),有或没有Caspase-1抑制.
主要成果:
- 在EOC细胞系中,对CDDP的抗性越来越强 (IC50值:A2780,ACRP,OVCAR3).
- CDDP治疗增加了细胞因子分泌和卡斯帕酶-1激活.
- 通过CDDP诱导的热 (细胞死亡,孔隙形成) 和Caspase-1抑制减少了细胞迁移.
结论:
- 炎症酶激活和热致死是与卵巢癌对CDDP的化学抵抗相关的机制.
- 向NLRP1和NLRP3炎症酶通路可能是一个有前途的策略,以提高OC治疗效率.
相关概念视频
The Intrinsic Apoptotic Pathway
8.2K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
8.2K
Treatment Resistant Cancers
3.7K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.7K
Cancer Cell Migration through Invadopodia
3.2K
Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
3.2K
Activation of Integrins
4.9K
Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
4.9K
Metastasis
6.3K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
6.3K
mTOR Signaling and Cancer Progression
4.6K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
4.6K


