解读骨髓瘤中化学阻力:透过非编码RNA的镜头揭示调节机制和功能
Hefen Chen1, Zhujun Gong1,2, Hong Zhou1
1Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Drug development research
|March 6, 2024
概括
非编码RNAs (ncRNAs) 是骨髓瘤 (OS) 抗化疗的关键参与者. 了解它们的作用为改善患者治疗结果提供了新的治疗点和生物标志物.
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:
- 骨髓瘤 (OS) 是年轻人常见的一种主要骨癌,其特点是高侵袭性和转移性.
- 目前的OS治疗包括新辅助化疗和手术,但化疗耐药性显著限制了疗效.
- 非编码RNAs (ncRNAs) 正在成为癌症的关键调节者,特别是在药物耐药性的背景下.
研究的目的:
- 审查骨髓瘤 (OS) 中ncRNAs异常表达的情况.
- 阐明ncRNAs在OS中调解化学抵抗的分子机制.
- 突出ncRNAs作为治疗标和预测生物标记物的潜力,以改善OS治疗结果.
主要方法:
- 在骨髓瘤化学抵抗中研究ncRNA的研究的文献综述.
- 对ncRNA参与药物耐药性的分子机制的分析.
- 综合目前关于ncRNAs在促进或抑制化学抵抗中的功能性作用的证据.
主要成果:
- 异常表达的ncRNAs,包括microRNAs,长非编码RNAs和圆形RNAs,与OS中的化学抵抗有显著的关联.
- 这些ncRNAs通过各种分子途径影响OS细胞对化疗的敏感性.
- 特定的ncRNA可以促进或抑制化学抵抗,表明复杂的调节作用.
结论:
- ncRNAs代表了克服骨髓瘤中化疗耐药性的有前途的治疗标.
- ncRNAs作为预测性生物标志物具有显著的潜力,用于OS患者的治疗反应和预后.
- 对ncRNA的进一步研究对于开发新的策略来提高治疗疗效和改善骨髓瘤生存率至关重要.
相关概念视频
Treatment Resistant Cancers
3.3K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.3K
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
Regulation of Expression Occurs at Multiple Steps
22.7K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
22.7K
lncRNA - Long Non-coding RNAs
8.6K
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...
8.6K
Types of RNA
63.7K
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
63.7K
Regulation of Expression at Multiple Steps
906
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
906


