在膝关节关节炎中MAPK信号通路的研究进展和前景
Qiao Fan1,2, MingYu Zhao3,4,5, Xiang-Dong Zhang2
1Hunan University of Traditional Chinese Medicine, Changsha, 410208, China.
概括
膝关节关节炎 (KOA) 涉及到由衰老和炎症驱动的软骨和骨退化. 异常的NF-κB,MAPK和Wnt信号通路是KOA的关键.
科学领域:
- 整形外科和风湿病学
- 细胞和分子生物学 细胞和分子生物学
- 生物医学工程 生物医学工程
背景情况:
- 膝关节骨关节炎 (KOA) 是一种退行性关节疾病,影响生活质量,特别是在老年人中.
- 诸如衰老,肥胖,创伤和炎症等因素有助于膝关节的软骨和骨退化.
- 细胞信号通路在KOA病变发生过程中起着至关重要的作用.
研究的目的:
- 研究特定细胞信号通路在膝关节关节炎发展中的作用.
- 了解异常通路的激活是如何在KOA中导致软骨退化和骨变化的.
- 确定预防和治疗膝关节骨关节炎的潜在治疗点.
主要方法:
- 关于膝关节骨关节炎病变的当前文献的综述.
- 对涉及KOA的细胞信号通路的分析,包括NF-κB,MAPK和Wnt.
- 在KOA中检查了导致软骨退化和骨质增生的分子机制.
主要成果:
- 异常激活NF-κB,MAPK和Wnt通路是KOA发病的一个关键因素.
- 这些通路促进炎症和软骨的分解,破坏关节软骨的平衡.
- 了解这些途径对于开发有针对性的KOA疗法至关重要.
结论:
- 准异常的细胞信号通路为膝关节骨关节炎治疗提供了一个有希望的策略.
- 对KOA病变的进一步研究对于开发更有效的治疗干预措施至关重要.
- 旨在调节NF-κB,MAPK和Wnt通路的干预措施可以缓解KOA的症状和进展.
相关概念视频
MAPK Signaling Cascades
5.0K
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...
5.0K
The JAK-STAT Signaling Pathway
8.6K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.6K
Interactions Between Signaling Pathways
6.2K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.2K
NF-κB-dependent Signaling Pathway
7.2K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.2K
mTOR Signaling and Cancer Progression
3.7K
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...
3.7K
PI3K/mTOR/AKT Signaling Pathway
3.3K
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...
3.3K


