相关实验视频
Updated: Jul 25, 2025

07:20
Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
567
长非编码RNA菌和ALK阴性形淋巴瘤相关转录:T细胞淋巴瘤中菌的新型调节剂
Valentina Mularoni1, Benedetta Donati1, Annalisa Tameni1
1Laboratory of Translational Research, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia.
Haematologica
|June 29, 2023
概括
长非编码RNA (lncRNA) MTAAT通过抑制线粒细胞衰变和促进扩散来促进形大细胞淋巴瘤 (ALCL) 的进展. 这种lncRNA是攻击性ALK-ALCL亚型的潜在生物标志物.
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:
- 长非编码RNAs (lncRNAs) 是T细胞淋巴瘤的关键调节者,但它们在形淋巴瘤激酶负 (ALK-) 形大细胞淋巴瘤 (ALCL) 中的特定作用仍然被部分理解.
- 之前的研究发现了与ALCL相关的lncRNA签名,为进一步调查提供了基础.
研究的目的:
- 定义一种新的lncRNA签名,用于区分ALCL亚型.
- 研究ALK-ALCL中新发现的lncRNA,MTAAT的分子和功能作用.
主要方法:
- 一个回顾性ALCL队列的数字基因表达概况.
- 在 lncRNA MTAAT 的选择和分子/功能特征.
- 分析lncRNA MTAAT在线粒体周转,线粒体和基因调节中的作用.通过染色体重塑.
主要成果:
- 建立了一个11-lncRNA签名,能够区分ALCL亚型.
- 发现 lncRNA MTAAT 在ALK-ALCL中优先表达.
- 通过染色体重组, lncRNA MTAAT 已被证明会损害 mitophagy,增强细胞增殖,并通过染色体重组抑制线粒体质量控制基因.
结论:
- lncRNA MTAAT通过破坏线粒体平衡来在ALK-ALCL的进展中发挥重要作用.
- lncRNA MTAAT作为一个转录抑制剂,编排一个维持ALK-ALCL的程序.
- 已识别的lncRNA特征和MTAAT代表了ALK-ALCL的潜在诊断和治疗点.
相关概念视频
lncRNA - Long Non-coding RNAs
8.7K
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...
8.7K
mTOR Signaling and Cancer Progression
3.8K
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...
3.8K
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
The Intrinsic Apoptotic Pathway
6.6K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.6K
Negative Regulator Molecules
35.5K
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
35.5K
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

