CXCL10促进黑色素瘤血管生成和瘤生长
Bongjun Kim1, Yun-Yong Park2, Jong-Ho Lee3,4
1Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Animal cells and systems
|September 13, 2024
概括
宿主衍生的CXCL10 (CXC动机化学酶10) 显著促进黑色素瘤生长和血管生成. 在小鼠中切除CXCL10减少了瘤进展,突出显示CXCL10是黑色素瘤的潜在治疗点.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 调高CXC动机化学基因10 (CXCL10) 与黑色素瘤进展有关.
- 内源性,宿主衍生的CXCL10在黑色素瘤瘤发育中的特定作用尚未完全理解.
研究的目的:
- 为了研究宿主衍生的内源性CXCL10对黑色素瘤瘤生长和血管生成的影响.
- 阐明CXCL10影响黑色素瘤进展的机制.
主要方法:
- 利用了CXCL10 (Cxcl10小鼠) 的宿主切除的小鼠模型来研究皮下B16F10黑色素瘤生长.
- 分析了亲血管性因素的表达及其对内皮细胞的作用.
- 采用三维细胞培养系统来评估CXCL10对瘤生长的直接影响.
主要成果:
- 在B16F10黑色素瘤瘤生长期间,宿主衍生CXCL10的产生显著增加.
- 主体CXCL10的切除导致血管生成和瘤生长的减少in vivo.
- 在黑色素瘤细胞中,CXCL10上调调节了亲血管性因子 (VEGF,PDGF-B,FGF2,HGF,Angpt2),增强了内皮细胞的增殖和管形成.
结论:
- 扩大宿主衍生的内源性CXCL10对于B16F10黑色素瘤血管生成和瘤生长至关重要.
- CXCL10直接促进黑色素瘤细胞的增殖和血管生成.
- CXCL10代表了黑色素瘤治疗的潜在治疗标.
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.5K
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...
2.5K
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
Mitogens and the Cell Cycle
6.4K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.4K
Adaptive Mechanisms in Cancer Cells
5.7K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.7K


