乳腺癌中GJB1的综合分析:它对生存和分子机制的影响
Engin Ozcivici1, Gulistan Mese2
1Department of Bioengineering, Faculty of Engineering, Izmir Institute of Technology, Izmir, Türkiye.
Anticancer research
|December 3, 2024
概括
乳腺癌中高GJB1 (Cx32) 表达与患者存活率较差相关,尽管一般下调调节. 这表明GJB1在乳腺癌进展中的潜在致癌作用.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 乳腺癌是全球女性癌症死亡的主要原因之一.
- 包括GJB1 (Cx32) 在内的Connexin (Cx) 家族蛋白质在瘤进展中起着复杂的作用.
- GJB1对乳腺癌存活率和分子机制的具体影响需要进一步阐明.
研究的目的:
- 为了研究GJB1在乳腺癌亚型中的表达模式.
- 分析GJB1表达水平与患者生存结果之间的关联.
- 确定与乳腺癌中高GJB1表达相关的生物过程.
主要方法:
- 利用METABRIC患者数据集和癌症细胞系百科全书进行全面的GJB1分析.
- 进行了差异基因表达分析,以比较瘤与正常组织中的GJB1水平.
- 进行基因组丰富分析,以探索与GJB1表达相关的生物途径.
主要成果:
- 与正常组织相比,GJB1在乳腺癌组织中显著下调.
- 较高的GJB1表达与较差的患者存活率显著相关,将中位数存活率减少了超过25个月.
- 基因实体学分析表明,高GJB1表达与改变的线粒体功能和细胞呼吸有关,而下调的基因与细胞外矩阵和膜结合有关.
结论:
- GJB1在乳腺癌中表现出潜在的双重作用,瘤下调,但高表达与不良生存相关.
- 这些发现表明,GJB1在乳腺癌中可能具有致癌功能.
- 需要进一步的研究,以充分了解GJB1的作用,并探索其在乳腺癌中的治疗潜力.
更多相关视频
07:03Isolation and Functional Assessment of Human Breast Cancer Stem Cells from Cell and Tissue Samples
Published on: October 2, 2020
4.5K
08:15gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair
Published on: October 6, 2014
12.2K
相关概念视频
Cancer Survival Analysis
328
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
328
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
The Retinoblastoma Gene
4.1K
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,...
4.1K
Tumor Progression
6.2K
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...
6.2K
mTOR Signaling and Cancer Progression
3.7K
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...
3.7K
Cancer-Critical Genes I: Proto-oncogenes
8.7K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
8.7K
