Effects of LncRNA HCP5/miR-214-3p/MAPK1 Molecular Network on Renal Cell Carcinoma Cells

Jun-Feng Hao1, Pei Chen2, He-Yi Li3

  • 1Department of Nephrology and Blood Purification Center, Jin Qiu Hospital of Liaoning Province (Geriatric Hospital of Liaoning Province), Shenyang City, Liaoning Province 110000, People's Republic of China.

Abstract

Insights

Long non-coding RNA HCP5 promotes clear cell renal cell carcinoma (ccRCC) metastasis by regulating the miR-214-3p/MAPK1 axis. HCP5 may serve as a prognostic biomarker for ccRCC patients.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Long non-coding RNAs (LncRNAs) are implicated in various carcinomas.
  • Clear cell renal cell carcinoma (ccRCC) metastasis is a major cause of cancer-related deaths.
  • The role of the LncRNA HCP5 in ccRCC remains largely unelucidated.

Purpose of the Study:

  • To investigate the expression and function of HCP5 in ccRCC.
  • To elucidate the underlying molecular mechanism of HCP5 in ccRCC progression.
  • To evaluate HCP5 as a potential biomarker for ccRCC prognosis.

Main Methods:

  • Real-time quantitative PCR (qRT-PCR) to assess HCP5 expression in ccRCC tissues.
  • Gain-of-function and loss-of-function assays to determine HCP5's biological effects on ccRCC cells.
  • RNA immunoprecipitation and Western blot analyses to explore the molecular mechanism involving miR-214-3p/MAPK1 axis.

Main Results:

  • HCP5 expression was significantly upregulated in ccRCC tissues and correlated with metastatic features.
  • Overexpression of HCP5 promoted ccRCC cell proliferation, migration, and invasion in vitro.
  • HCP5 deletion inhibited ccRCC cell growth and metastasis both in vitro and in vivo.
  • HCP5 was found to regulate the miR-214-3p/MAPK1 axis, thereby affecting ccRCC progression.

Conclusions:

  • HCP5 acts as a key LncRNA promoting ccRCC metastasis.
  • The HCP5/miR-214-3p/MAPK1 axis is a critical pathway in ccRCC development.
  • HCP5 holds potential as a prognostic biomarker for ccRCC.

Related Concept Videos

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...
9.4K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.9K
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...
4.1K
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...
3.4K
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...
23.3K
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
7.3K