microRNA-1297 involves in the progression of oral squamous cell carcinoma through PTEN

Limin Liang1, Lin Feng1, Bo Wei1

  • 1General Hospital of the People's Liberation Army of China, Beijing 100000, PR China.

Abstract

Insights

MicroRNA-1297 (miRNA-1297) is repressed in oral squamous cell carcinoma (OSCC), inhibiting tumor growth by targeting PTEN. This suggests miRNA-1297 as a potential therapeutic target for OSCC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Oral squamous cell carcinoma (OSCC) pathogenesis remains unclear.
  • Investigating the role of novel microRNAs (miRNAs) in OSCC development is crucial.

Purpose of the Study:

  • To elucidate the biological function of a newly identified miRNA in OSCC.
  • To explore the relationship between miR-1297 and OSCC progression.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) for miRNA and gene expression profiling.
  • Cell proliferation assays (CCK-8, colony formation) and Western blotting for protein analysis.
  • Statistical analysis using SPSS.

Main Results:

  • MiR-1297 was found to be downregulated in OSCC tissues.
  • Overexpression of miR-1297 suppressed OSCC cell proliferation, while its suppression promoted it.
  • PTEN silencing mimicked the effect of miR-1297 overexpression on OSCC cell growth, indicating PTEN activation in OSCC.

Conclusions:

  • MiRNA and gene expression alterations are frequent in OSCC.
  • MiR-1297 may promote OSCC tumor progression via PTEN regulation.
  • MiR-1297 presents a potential therapeutic target for OSCC.

Related Concept Videos

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...
24.2K
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...
4.0K
Oral Cavity01:11

Oral Cavity

The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
3.2K
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.4K
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
1.5K
Oral Hypoglycemic Agents: Glinides01:06

Oral Hypoglycemic Agents: Glinides

Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively...
674