相关实验视频
Updated: Jul 26, 2025

04:20
Author Spotlight: Exploring the Role of FAM83A in Cervical Cancer
Published on: February 9, 2024
974
由于促进物甲基化,WIF1在宫癌中被下调
Ying Wang1, Shifa Yuan2, Jing Ma1
1Department of Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China.
Acta biochimica Polonica
|June 12, 2023
概括
在宫癌中,Wnt抑制因子1 (WIF1) 促进剂甲基化使WIF1沉默,促进瘤生长. 重新激活WIF1可以抑制癌症的进展,并诱导细胞亡.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 由于促进物甲基化,Wnt抑制因子1 (WIF1) 在癌症中经常被下调.
- 对于WIF1促进物甲基化在子宫癌发病过程中的作用尚不清楚.
研究的目的:
- 研究WIF1促进物甲基化在宫癌发展中的机制.
- 为了确定WIF1是否在宫癌中起到瘤抑制作用.
主要方法:
- 免疫组织化学评估宫癌组织中的WIF1表达.
- 甲基化特异性PCR检测WIF1促进体甲基化.
- 通过RT-PCR和Western blot量化WIF1的mRNA和蛋白质水平.
- 在SiHa细胞中使用5-aza-2-deoxycytidine (AZA) 和WIF1 siRNA进行治疗.
主要成果:
- 与正常组织和Ect1细胞相比,WIF1表达在宫癌组织和SiHa细胞中明显较低.
- 在SiHa细胞中,WIF1促进体被甲基化,与减少WIF1表达相关.
- AZA治疗恢复了WIF1的表达,并抑制了SiHa细胞入侵和诱导的亡.
- AZA的影响被WIF1 siRNA逆转,下游目标如生存,c-myc和cyclinD1被调节.
结论:
- 在宫癌中,WIF1促进物甲基化导致WIF1下调和Wnt/β-catenin通路的激活.
- 在宫癌中,WIF1作为瘤抑制剂起作用,并通过表观遗传沉默被禁用.
相关概念视频
Epigenetic Regulation
31.1K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
31.1K
Canonical Wnt Signaling Pathway
8.8K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.8K
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
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
Genomic Imprinting and Inheritance
34.7K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.7K
Loss of Tumor Suppressor Gene Functions
4.9K
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.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
4.9K

