相关实验视频
Updated: Jan 12, 2026

08:07
Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
7.6K
基底膜关联基因P3H2通过AKT/mTOR信号轴调节骨髓瘤的进展和上皮细胞-介质细胞过渡
Ruilin Pan1, Yiming Zhang1, Huajun Wang1
1Department of Sports Medicine, The First Affiliated Hospital, Guangdong Provincial Key Laboratory of Speed Capability, The Guangzhou Key Laboratory of Precision Orthopedics and Regenerative Medicine, Jinan University, Guangzhou, China.
Translational oncology
|November 5, 2025
概括
P3H2基因在骨髓瘤中起到瘤抑制作用,抑制癌细胞的生长和扩散. 它通过禁用AKT/mTOR通路来实现这一目标,为新的骨髓瘤治疗提供了潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 骨髓瘤是一种高度转移的骨癌,预后不佳,特别是在儿童和青少年中.
- 与底层膜相关的瘤抑制基因P3H2在某些癌症中表达减少,但其在骨髓瘤中的作用尚不清楚.
- 在骨髓瘤中研究P3H2可能会揭示新的诊断,预后和治疗点.
研究的目的:
- 为了研究骨髓癌中P3H2的表达和功能.
- 阐明P3H2影响骨髓瘤进展的潜在分子机制.
- 评估P3H2作为骨髓瘤治疗点的潜力.
主要方法:
- 公共数据库的生物信息分析,以评估P3H2表达和骨髓瘤和胰腺癌的预后价值.
- 在体外和体内实验中评估P3H2对骨髓瘤细胞增殖,迁移,入侵和上皮-介质细胞过渡 (EMT) 的影响.
- 机械研究以确定骨髓瘤细胞中P3H2调节的信号通路.
主要成果:
- 骨髓瘤中P3H2表达失调,在各种瘤中确定了显著的预后和免疫调节作用.
- 过度表达P3H2抑制了骨髓瘤细胞的增殖,迁移,入侵和EMT,并在体内抑制了瘤的生长.
- 通过减少AKT和mTOR酸化,P3H2通过抑制AKT/mTOR信号通路而起作用.
结论:
- 在骨髓瘤中,P3H2作为瘤抑制基因起作用.
- 通过抑制AKT/mTOR信号轴,P3H2可以抑制骨髓瘤的恶性行为.
- 准P3H2或AKT/mTOR通路可能为骨髓瘤提供一种新的治疗策略.
相关概念视频
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
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
Abnormal Proliferation
5.1K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.1K
MAPK Signaling Cascades
7.9K
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...
7.9K
Regulation of Angiogenesis and Blood Supply
3.3K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.3K
The JAK-STAT Signaling Pathway
11.9K
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...
11.9K

