MGF

mBio · 2025

Researchers studied how a specific gene from the African swine fever virus (ASFV) affects the immune response in pigs. They found that this gene, MGF_360-4L, disrupts the signaling pathways that normally help the host fight off the virus, allowing the virus to replicate more effectively.

• MGF_360-4L interacts with a key immune molecule, MDA5, leading to its degradation.
• This gene blocks important interactions that would typically activate the immune response.
• Deficiency of MGF_360-4L reduces the virus's ability to induce mitochondrial autophagy.

Acta biochimica et biophysica Sinica · 2023

Researchers reviewed the role of mechano growth factor (MGF) in cartilage health, particularly in damaged areas due to injuries or conditions like osteoarthritis. They found that MGF is crucial for chondrocyte functions, which are essential for maintaining healthy cartilage, but its exact biological mechanisms remain unclear.

• MGF is highly expressed in chondrocytes, especially in damaged cartilage.
• MGF influences important chondrocyte behaviors, including cell growth and response to injury.
• The role of MGF in cartilage development and disease is still being studied, with some aspects remaining controversial.

Current protein & peptide science · 2023

Researchers reviewed the role of insulin-like growth factor-1 (IGF-1) and its variants in promoting nerve regeneration after injuries. They found that these factors can improve nerve survival and repair, especially in challenging conditions like inflammation and oxidative stress.

• Researchers observed that nerve injuries often lead to significant loss of function and quality of life.
• The study highlighted that IGF-1 and its isoforms can enhance nerve repair by supporting neuron survival.
• Cytokine therapy, including IGF-1, shows promise in improving recovery from nerve damage under adverse conditions.

Molecular brain · 2017

Researchers found that mechano growth factor (MGF), a variant of IGF-1, plays a role in promoting the growth of new neurons in the aging mouse brain. The study observed that higher levels of MGF can increase the number of neural progenitor cells, particularly when introduced at younger ages, potentially helping to counteract age-related brain decline.

• MGF levels decrease in the brain as mice age, particularly in areas responsible for neurogenesis.
• Overexpressing MGF from a young age significantly increases the number of proliferating cells and mature neurons in the olfactory bulbs.
• Maintaining youthful levels of MGF may be crucial for reversing neuronal loss associated with aging.

Critical reviews in oncology/hematology · 2016

Researchers reviewed the role of a specific protein, IGF-1Ec, in muscle and bone development, as well as its involvement in a type of bone cancer called osteosarcoma. They highlighted the potential of targeting this protein for future therapies.

• Researchers found that IGF-1 is crucial for muscle and bone growth and repair.
• The study observed that the IGF-1Ec isoform may play a significant role in the development of osteosarcoma.
• The authors suggest that IGF-1Ec could be a promising target for new cancer treatments.

Hormones (Athens, Greece) · 2014

Researchers reviewed the role of a specific part of the IGF-1Ec protein, which is linked to growth and healing in the body. They found that this protein variant is more active in response to injuries and in certain cancers, suggesting it may play a unique role in these conditions.

• Researchers observed that IGF-1Ec is produced more in skeletal muscle after injury.
• The expression of IGF-1Ec is increased in cancer tissues and cell lines.
• A synthetic version of a part of IGF-1Ec was studied to understand its potential biological effects.

Mechanisms of ageing and development · 2011

Researchers studied the effects of a peptide called Mechano Growth Factor E (MGF-E) on human muscle cells from people of various ages. They found that MGF-E significantly boosts the growth and repair potential of muscle cells in younger individuals, but not in older adults, suggesting it could be a promising approach to address age-related muscle loss.

• Researchers observed that MGF-E peptide enhances the growth and repair capabilities of muscle progenitor cells in younger adults.
• The study found that MGF-E delays the aging process in muscle cells from younger individuals but does not have the same effect in older adults.
• Researchers noted a significant reduction in reserve muscle cells across all age groups, indicating MGF-E promotes muscle cell fusion and hypertrophy.

Molecular medicine (Cambridge, Mass.) · 2011

Researchers studied the expression of insulinlike growth factor-1 (IGF-1) isoforms in normal and abnormal endometrial tissue from women with endometriosis. They found that while all IGF-1 isoforms were present in normal and ectopic endometrium, levels were significantly lower in endometriotic cysts. Additionally, a synthetic peptide derived from IGF-1Ec stimulated the growth of certain endometrial cells through mechanisms not involving common growth factor receptors.

• Researchers found that endometriotic cysts had significantly lower levels of IGF-1 isoforms compared to normal and ectopic endometrial tissue.
• The glandular cells of ectopic endometrium expressed IGF-1Ec, while those in normal endometrium did not.
• The synthetic MGF E-peptide promoted cell growth independently of the typical IGF-1 and insulin receptors.

The Prostate · 2010

Researchers found that a specific form of the IGF-1 gene, known as MGF, is more active in prostate cancer tissues compared to normal prostate tissues. This study observed that the MGF E peptide can stimulate the growth of prostate cancer cells through mechanisms that do not involve traditional growth factor receptors. The findings suggest that MGF may play a significant role in the biology of prostate cancer.

• MGF is overexpressed in prostate cancer tissues and certain prostate cancer cell lines.
• The synthetic MGF E peptide promotes the growth of prostate cancer cells by activating specific cellular pathways.
• MGF's activity occurs independently of the IGF-1 and insulin receptors.

Endocrinology · 2010

Researchers found that a specific variant of the IGF-I gene, known as mechano-growth factor (MGF), plays a significant role in muscle repair and regeneration after injury. This study highlights how different forms of IGF-I are activated in response to mechanical stress, influencing muscle cell growth and development over time.

• Researchers observed that the IGF-IEb variant is up-regulated shortly after muscle injury, promoting muscle cell proliferation.
• The later activation of the IGF-IEa variant is associated with the maturation of muscle fibers.
• The study discusses the potential roles of MGF in muscle remodeling, aging, and neuroprotection.