相关实验视频
Updated: Jan 11, 2026

10:37
Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
36.4K
罗基因酶2促进了人类前列腺癌PC-3细胞的表皮-介质细胞过渡和增殖
Alamgir Hossain1, Aya Yamamura2, Md Junayed Nayeem3
1Department of Physiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan; Eukaryotic Gene Expression and Function Research Group, AS Tower, Beside Mimisuper Market, Probortok Circle, Chattogram, 4000, Bangladesh.
Journal of pharmacological sciences
|November 15, 2025
概括
向Rho-kinase 2 (ROCK2) 在治疗割抵抗性前列腺癌方面表现有前途. 抑制ROCK2可以逆转癌细胞的进展并减少瘤的生长,这为潜在的新疗法提供了新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 前列腺癌对雄激素剥夺疗法的耐药性导致割耐性前列腺癌 (CRPC).
- 对于CRPC,治疗选择有限,这突显了对新型治疗策略的需求.
- 罗基纳斯 (ROCK1和ROCK2) 与癌症进展有关,但它们的治疗潜力尚未得到充分探索.
研究的目的:
- 研究ROCK1和ROCK2在前列腺癌细胞增殖和上皮-介质细胞过渡 (EMT) 中的作用.
- 评估ROCK2作为CRPC的潜在治疗点.
主要方法:
- 在前列腺上皮细胞和CRPC细胞系中比较ROCK1和ROCK2的表达 (PC-3,DU145).
- 在PC-3细胞中分析了EMT标记物 (E-cadherin,N-cadherin,Snail).
- 利用ROCK2倒置和选择性ROCK2抑制剂 (KD025) 来评估对细胞增殖,迁移和球形形成的影响.
- 在PC-3异种移植小鼠模型中评估了ROCK2缺乏.
主要成果:
- 与正常的前列腺细胞和DU145细胞相比,PC-3细胞中的ROCK2表达显著更高.
- PC-3细胞表现出一个EMT表型 (降低E-cadherin,增加N-cadherin和Snail).
- ROCK2敲除和KD025治疗逆转了EMT,减少了细胞增殖,迁移和球体活力,并在体内减弱了瘤生长.
结论:
- ROCK2促进EMT和瘤进展在雌激素独立的前列腺癌细胞.
- 针对ROCK2,可能与KD025等选择性抑制剂一起,代表了CRPC的一个有前途的治疗策略.
相关概念视频
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
MAPK Signaling Cascades
7.8K
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
7.8K
PI3K/mTOR/AKT Signaling Pathway
5.3K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
5.3K
The Ras Gene
7.0K
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
Ras is a...
7.0K
Receptor Tyrosine Kinases
17.8K
Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
17.8K
Small GTPases - Ras and Rho
5.2K
Ras and Rho are small monomeric GTPases that act downstream of receptor tyrosine kinase (RTK) and regulate various cellular processes. These GTPases switch between active and inactive states by binding to guanine nucleotides.
Three regulatory proteins control their activity:
Three regulatory proteins control their activity:
5.2K

