MiRNA- 1293 Promotes Hepatocellular Carcinoma Cell Proliferation and Invasion by METTL3-Mediated m6 A Modification of Pri-miRNA- 1293

  • 0Digestive Endoscopy Center, The First Affiliated Hospital of Jinan University, Guangzhou, China.

|

|

Summary

This summary is machine-generated.

MicroRNA-1293 (miR-1293) promotes hepatocellular carcinoma (HCC) progression by enhancing cell viability and invasion. METTL3-mediated m6A methylation regulates miR-1293, offering potential new therapeutic strategies for HCC.

Area Of Science

  • Oncology
  • Molecular Biology
  • Epigenetics

Background

  • Hepatocellular carcinoma (HCC) is an aggressive digestive system malignancy.
  • MicroRNAs (miRNAs) and N6-methyladenine (m6A) modification are implicated in HCC progression.
  • The specific roles of miR-1293 and its regulatory mechanisms in HCC require further elucidation.

Purpose Of The Study

  • To investigate the role of miR-1293 in hepatocellular carcinoma (HCC) progression.
  • To elucidate the underlying molecular mechanism involving m6A modification and METTL3.

Main Methods

  • Quantitative real-time PCR, methylated RNA immunoprecipitation (MeRIP), and RNA immunoprecipitation (RIP).
  • Cell counting kit-8 and Transwell assays to assess cellular biological behaviors.
  • Xenograft tumor experiments in vivo.

Main Results

  • miR-1293 was significantly upregulated in HCC tissues and cell lines.
  • Overexpression of miR-1293 enhanced HCC cell viability, invasion, and migration.
  • METTL3 accelerated pri-miR-1293 processing and maturation in an m6A-dependent manner.
  • miR-1293 promoted tumor growth in vivo.

Conclusions

  • miR-1293 plays a crucial role in promoting HCC progression.
  • The METTL3-mediated m6A methylation pathway regulates miR-1293 levels and function in HCC.
  • Targeting the miR-1293/METTL3 axis presents a potential therapeutic strategy for HCC.

Related Concept Videos

MicroRNAs 01:22

2.9K

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...

mTOR Signaling and Cancer Progression 03:03

3.6K

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...

Abnormal Proliferation 02:23

4.3K

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...

Induced Pluripotent Stem Cells 01:06

3.8K

Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...

PI3K/mTOR/AKT Signaling Pathway 01:22

3.3K

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...

lncRNA - Long Non-coding RNAs 02:39

8.4K

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...