Related Experiment Video
Updated: May 3, 2026

12:37
Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
Published on: September 7, 2013
18.4K
Macrophage migration inhibitory factor (rs755622) gene polymorphism in vitiligo
Doaa Falih Hadi1, Abdel-Aziz Ibrahim El-Taweel1, Amany Ibrahim Mustafa1
1Department of Dermatology, Faculty of Medicine, Benha University, Benha, Egypt.
Irish Journal of Medical Science
|May 30, 2025
Summary
Genetic variations in the macrophage migration inhibitory factor (MIF) gene (rs755622) are linked to vitiligo susceptibility. This specific gene polymorphism may increase the risk of developing vitiligo and potentially correlate with disease severity.
Area of Science:
- Immunogenetics
- Dermatology
- Human Genetics
Background:
- Vitiligo is a skin condition resulting from melanocyte destruction, with cellular immunity implicated in its development.
- Macrophage migration inhibitory factor (MIF) is a key immune mediator involved in cell-mediated immunity.
Purpose of the Study:
- To examine the association between the MIF (rs755622) gene polymorphism and vitiligo susceptibility.
- To investigate the relationship between this polymorphism and vitiligo severity and clinical subtypes.
Main Methods:
- A case-control study involving 50 vitiligo patients and 50 healthy controls.
- Polymerase chain reaction (PCR) was used to determine the single nucleotide polymorphism (SNP) of the MIF gene (rs755622).
Main Results:
- The GC, CC genotypes, and C allele of the MIF gene (rs755622) were significantly more prevalent in vitiligo patients compared to controls.
- These findings suggest a higher risk of vitiligo development associated with specific MIF gene variants.
Conclusions:
- The MIF gene polymorphism (rs755622) is potentially a risk factor for vitiligo susceptibility.
- This genetic variation may also be linked to a greater extent of disease in vitiligo patients.
Related Concept Videos
Pleiotropy
31.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
31.2K
Position-effect Variegation
5.6K
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
5.6K
General Transcription Factors
5.9K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.9K

