LINC00671 inhibits renal cell cancer progression via regulating miR-221-5p/SOCS1 axis

Gang Jin1, Haiyan Mi2, Yunfei Ye3

  • 1Department of Urology Surgery, The No. 1 People's Hospital of Pinghu Community Pinghu 314200, China.

Abstract

Insights

Long non-coding RNA LINC00671 acts as a tumor suppressor in renal cell cancer (RCC). It inhibits cancer cell growth, migration, and invasion by regulating the miR-221-5p/SOCS1 pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Long non-coding RNAs (lncRNAs) are increasingly recognized for their regulatory roles in cancer progression.
  • The specific function of lncRNA LINC00671 in renal cell cancer (RCC) remains largely undetermined.
  • Understanding lncRNA roles is crucial for developing novel cancer therapies.

Purpose of the Study:

  • To investigate the role and mechanism of lncRNA LINC00671 in renal cell cancer (RCC).
  • To determine the relationship between LINC00671 expression and RCC clinicopathological features and patient survival.
  • To elucidate the molecular pathway regulated by LINC00671 in RCC progression.

Main Methods:

  • Quantitative real-time polymerase chain reaction (qRT-PCR) for gene expression analysis.
  • Western blotting to assess protein levels of epithelial-mesenchymal transition (EMT)-associated markers and SOCS1.
  • Cell proliferation, migration, invasion assays (CCK-8, EdU, Transwell), RNA immunoprecipitation (RIP), and luciferase reporter assays to confirm molecular interactions.

Main Results:

  • LINC00671 expression was significantly decreased in RCC tissues and cell lines, correlating with poorer survival and advanced clinicopathological features.
  • Overexpression of LINC00671 suppressed RCC cell proliferation, migration, invasion, and EMT in vitro.
  • LINC00671 was found to target miR-221-5p, thereby up-regulating suppressor of cytokine signaling 1 (SOCS1) expression.

Conclusions:

  • LINC00671 functions as a tumor suppressor in renal cell cancer (RCC).
  • The mechanism involves the regulation of the miR-221-5p/SOCS1 axis.
  • LINC00671 may serve as a potential therapeutic target for RCC treatment.

Related Concept Videos

The Retinoblastoma Gene01:20

The Retinoblastoma Gene

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,...
4.3K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

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...
4.0K
MicroRNAs01:22

MicroRNAs

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...
3.3K
MicroRNAs01:22

MicroRNAs

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...
22.5K
Abnormal Proliferation02:23

Abnormal Proliferation

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...
4.7K
lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

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...
9.2K