相关实验视频
Updated: Jul 15, 2025

08:06
Y-27632 Enriches the Yield of Human Melanocytes from Adult Skin Tissues
Published on: July 8, 2020
5.6K
通过调节免疫微环境并向MYC/PD-L1通路,氧马可以抑制黑色素瘤的发展
1School of Medicine, Jinan University, Guangzhou, China; Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Jinan University, Ministry of Education, Guangzhou, China; Guangzhou Key Laboratory for Germ-Free Animals and Microbiome Application, Guangzhou, China.
International immunopharmacology
|October 3, 2023
概括
一种天然化合物牛氧,通过调节免疫微环境并准MYC/PD-L1通路,有效抑制黑色素瘤. 这项研究揭示了其作为一种不那么有毒的抗瘤剂的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
背景情况:
- 来自Sophora flavescens的oxymatrine具有已知的抗炎,抗纤维和抗瘤特性.
- 精确的抗瘤免疫机制的oxymatrine还没有完全理解.
研究的目的:
- 为了研究oxymatrine在黑色素瘤中的抗瘤免疫机制.
- 探索氧化对黑色素瘤细胞增殖,迁移,亡以及瘤免疫微环境的影响.
主要方法:
- 在体外和体外实验中,使用黑色素瘤B16细胞和小鼠模型进行了实验.
- 使用网络药理学和RNA测序 (RNAseq) 来识别潜在的目标.
- 使用定量实时PCR (qRT-PCR) 和西部抹杀来分析基因和蛋白质表达.
主要成果:
- 氧马抑制了黑色素瘤细胞的增殖和迁移,同时促进了细胞亡.
- 它提高了CD4+ T,CD8+ T和NKT细胞的调节,降低了调节T (Treg) 细胞的调节,并增加了TNF-α分泌.
- 氧马抑制了PD-L1和MYC的表达,MYC可能调节PD-L1以调节抗瘤作用.
结论:
- 氧化素通过调节免疫微环境并准MYC/PD-L1通路,有效抑制黑色素瘤.
- 这项研究提供了一种新的方法,用于使用oxymatrine治疗黑色素瘤.
- 牛氧氨酸显示出作为一种不那么有毒和更有效的抗瘤剂对黑色素瘤的承诺.
相关概念视频
The Intrinsic Apoptotic Pathway
6.6K
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...
6.6K
Inhibition of Cdk Activity
4.8K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.8K
Targeted Cancer Therapies
7.7K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.7K
Abnormal Proliferation
4.6K
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...
4.6K
Mitogens and the Cell Cycle
6.5K
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...
6.5K
The Tumor Microenvironment
6.7K
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...
6.7K

