癌症生物学中的LCAT:拥抱表观遗传调节,免疫相互作用和治疗影响
Manzhi Gao1,2, Wentian Zhang1,2, Xinxin Li1,2
1Department of Aerospace Hygiene, School of Aerospace Medicine, Air Force Medical University, Xi'an 710032, China.
International journal of molecular sciences
|February 26, 2025
概括
莱西丁胆固醇酸转移酶 (LCAT) 在癌症中起着双重作用,影响瘤生长和治疗反应. 了解 LCAT 的理解
科学领域:
- 在瘤学瘤学.
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 莱西丁胆固醇酸转移酶 (LCAT) 是高密度脂蛋白 (HDL) 代谢的组成部分.
- 在各种癌症中观察到LCAT的失调,影响瘤进展和治疗结果.
研究的目的:
- 为了研究LCAT在各种恶性瘤中的表达模式.
- 为了将LCAT表达与临床结果,遗传/表观遗传改变和免疫反应相关联.
- 探索LCAT作为癌症预后和治疗点的潜力.
主要方法:
- 使用生物信息学工具分析多种癌症类型中的LCAT表达.
- 考克斯回归建模以评估LCAT和生存指标 (OS,DSS,PFI) 之间的关联.
- 检查LCAT的遗传 (CNV,SNV) 和表观遗传 (甲基化,m6A) 修饰及其与免疫透和药物敏感性的相关性.
主要成果:
- 在不同癌症中,LCAT表达特征在不同癌症中存在显著差异,具有预后影响.
- 低LCAT表达与低度质瘤 (LGG) 和肝肝细胞癌 (LIHC) 的预后不佳有关.
- 高LCAT表达与上腺皮癌 (ACC) 和结肠腺癌 (COAD) 的更好的结果相关.
- LCAT CNVs和甲基化被确定为脏胞细胞癌 (KIRP) 和子宫体子宫内膜癌 (UCEC) 的预后标志物.
- LCAT与免疫分子和m6A修饰剂相互作用,这表明它在免疫逃避和免疫疗法反应中的作用.
- LCAT表达与化疗药物敏感性相关,表明具有预测潜力.
- 在瘤生长中LCAT的作用似乎取决于情境,可能在ACC/COAD中促进它,并在LGG/LIHC中抑制它.
结论:
- LCAT是癌症生物学中的一个重要因素,它将脂质代谢,免疫调节和瘤进展联系起来.
- LCAT表达及其调节机制代表了新型癌症治疗的有希望的目标.
- 这些发现支持针对各种恶性瘤开发基于LCAT的个性化治疗策略.
相关概念视频
lncRNA - Long Non-coding RNAs
8.5K
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...
8.5K
Targeted Cancer Therapies
7.4K
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...
7.4K
Epigenetic Regulation
3.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.0K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Cancer-Critical Genes II: Tumor Suppressor Genes
7.3K
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...
7.3K
Tumor Immunotherapy
462
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
462


