乳糖驱动的KRT19通过抑制细胞衰老促进非小细胞肺癌的进展
Cai Zhang1, Yue Du2, Yangyang Ji2
1Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China. zhangcai9394@zzu.edu.cn.
Journal of experimental & clinical cancer research : CR
|December 4, 2025
概括
这项研究表明,KRT19通过覆盖细胞衰老来促进非小细胞肺癌 (NSCLC). 抑制KRT19可以增强抗瘤免疫力,并且在NSCLC患者的组合疗法中表现有前途.
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:
- 细胞衰老是一种瘤抑制机制.
- 非小细胞肺癌 (NSCLC) 细胞逃避恶性进展的衰老的机制尚不清楚.
研究的目的:
- 阐明KRT19在NSCLC进展中的作用及其通过H3K18乳化 (H3K18la) 的调节.
- 研究KRT19如何影响p21驱动的细胞衰老.
- 评估针对NSCLC中KRT19的治疗潜力.
主要方法:
- 利用异种移植模型,细胞增殖试验 (EdU,CCK8,殖民地形成) 和Transwell试验来评估KRT19对NSCLC的影响.
- 雇佣了ChIP-seq和双化酶记者测试来探索H3K18la介导的KRT19调节.
- 研究KRT19通过衰老试验,RNA-seq,质谱和无处不在试验来调节p21的机制.
- 使用免疫组织化学和TCGA数据库分析了临床意义.
主要成果:
- 增加的KRT19表达与预后不佳相关,并促进NSCLC的瘤发生.
- 乳酸衍生的H3K18la通过与其促进体结合来激活KRT19转录.
- KRT19抑制了p53-介导的p21转录激活,并通过MYH9.9促进了p21的泛化.
- KRT19阻断增强CD8+T细胞细胞毒性,并与抗PD-1协同作用以抑制NSCLC.
结论:
- 乳化驱动的KRT19取代衰老并促进NSCLC的进展.
- 向KRT19为NSCLC提供了潜在的治疗策略,特别是与免疫疗法结合使用.
更多相关视频
06:51Utilizing 18F-FDG PET/CT Imaging and Quantitative Histology to Measure Dynamic Changes in the Glucose Metabolism in Mouse Models of Lung Cancer
Published on: July 21, 2018
18.5K
07:39SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs
Published on: June 28, 2019
25.0K
相关概念视频
Replicative Cell Senescence
4.3K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
4.3K
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
lncRNA - Long Non-coding RNAs
9.7K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
9.7K
The Retinoblastoma Gene
4.6K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.6K
Adaptive Mechanisms in Cancer Cells
6.9K
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,...
6.9K
Tumor Progression
7.2K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.2K
