Related Experiment Video

Updated: Mar 23, 2026

Fabrication and Characterization of Layer-By-Layer Janus Base Nano-Matrix to Promote Cartilage Regeneration
08:55

Fabrication and Characterization of Layer-By-Layer Janus Base Nano-Matrix to Promote Cartilage Regeneration

Published on: July 6, 2022

2.5K

The Role of miRNAs in Cartilage Homeostasis

Yong Ping Li1, Xiao Chun Wei1, Peng Cu Li1

  • 1Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China;

Current Genomics
|March 29, 2016
PubMed

Insights

MicroRNAs (miRNAs) are crucial in osteoarthritis (OA) pathogenesis, influencing cartilage degeneration by modulating anabolic and catabolic pathways. Understanding these miRNA roles is key to developing new OA treatments.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Osteoarthritis (OA) is an age-related degenerative joint disease with complex, not fully understood, pathogenesis.
  • MicroRNAs (miRNAs) have emerged as critical regulators in various biological processes, including those relevant to OA.

Purpose of the Study:

  • To elucidate the role of miRNAs in osteoarthritis pathogenesis.
  • To review the connection between miRNAs and cartilage anabolic/catabolic signaling pathways in OA.

Main Methods:

  • Literature review of recent publications on miRNA and osteoarthritis.
  • Analysis of miRNA interactions with key signaling pathways (TGF-β/Smads, BMPs, MAPK, NF-κB).
  • Exploration of miRNA relationships with matrix metalloproteinases (MMPs), ADAMTS, nitric oxide synthases (NOS), IL-1, and TNF-α.

Main Results:

  • miRNAs significantly influence cartilage anabolic and catabolic signals.
  • Specific signaling pathways (TGF-β/Smads, BMPs, MAPK, NF-κB) are modulated by miRNAs in OA.
  • miRNAs impact cartilage degeneration, chondrocyte proliferation, and differentiation.

Conclusions:

  • miRNAs play a critical role in the initiation and progression of osteoarthritis.
  • Understanding the miRNA-mediated molecular network is vital for elucidating OA pathogenesis and developing therapeutic strategies.
Keywords:
CartilageChondrocytes.HomeostasisOsteoarthritismiRNA

More Related Videos

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis09:20

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis

Published on: December 18, 2019

7.7K
Culture of Murine Embryonic Metatarsals: A Physiological Model of Endochondral Ossification07:23

Culture of Murine Embryonic Metatarsals: A Physiological Model of Endochondral Ossification

Published on: December 3, 2016

12.5K

Related Concept Videos

Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
4.7K
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...
4.2K
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...
24.6K
MicroRNAs01:22

MicroRNAs

12.0K
Role of Matrix Metalloproteases in Degradation of ECM01:23

Role of Matrix Metalloproteases in Degradation of ECM

Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
3.7K
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
8.0K