MIF-173G/C (rs755622) polymorphism as a risk factor for acute lymphoblastic leukemia development in children

Mohamed Sharaf-Eldein1, Doaa Elghannam2, Camelia Abdel-Malak1

  • 1Department of Biochemistry, Faculty of Sciences, Damietta University, New Damietta, Egypt.

Abstract

Insights

The MIF-173G/C polymorphism is a risk factor for childhood acute lymphoblastic leukemia (ALL) in Egyptian children. The CC genotype and increased C-allele representation are linked to higher white blood cell counts, suggesting a poorer prognosis.

Area of Science:

  • Genetics and Molecular Biology
  • Immunology
  • Pediatric Oncology

Background:

  • Macrophage inhibitory factor (MIF) is a pro-inflammatory cytokine involved in various biological processes.
  • The MIF-173G/C (rs755622) polymorphism in the promoter region influences MIF gene activity.
  • This polymorphism has been investigated for its potential role in disease development.

Purpose of the Study:

  • To investigate the MIF-173G/C (rs755622) polymorphism as a risk factor for acute lymphoblastic leukemia (ALL) in Egyptian children.
  • To assess the association between MIF genotypes and ALL development.
  • To explore the prognostic implications of the MIF polymorphism in childhood ALL.

Main Methods:

  • Genotyping of the MIF-173G/C (rs755622) polymorphism using polymerase chain reaction (PCR) and restriction endonuclease digestion.
  • Analysis of 180 Egyptian children with ALL and 150 healthy controls.
  • Agarose gel electrophoresis for product visualization.

Main Results:

  • A significant association was found between the homozygous polymorphic (CC) genotype and combined polymorphic genotypes (GC + CC) of MIF-173G/C and ALL development.
  • The wild-type (GG) genotype was more prevalent in healthy controls.
  • Multivariate analysis identified the CC genotype as a significant risk factor for ALL (p=0.02).
  • Increased C-allele representation correlated with higher total leukocytic counts, suggesting a potential negative prognostic impact.

Conclusions:

  • The MIF-173G/C (rs755622) polymorphism, particularly the CC genotype and combined polymorphic genotypes, is a risk factor for childhood ALL in the Egyptian population.
  • The association of the polymorphic C-allele with increased leukocytic count may indicate a poorer prognosis in childhood ALL.
  • Further research is warranted to confirm the prognostic significance of this polymorphism.

Related Concept Videos

Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
13.7K
Factors Affecting Dissolution: Polymorphism, Amorphism and Pseudopolymorphism01:21

Factors Affecting Dissolution: Polymorphism, Amorphism and Pseudopolymorphism

Polymorphism refers to the existence of a drug substance in multiple crystalline forms, known as polymorphs. Recently, this term has been expanded to include solvates (forms containing a solvent), amorphous forms (non-crystalline forms), and desolvated solvates (forms from which the solvent has been removed).
Some polymorphic crystals possess lower aqueous solubility than their amorphous counterparts, leading to incomplete absorption. For instance, the oral suspension of Chloramphenicol, which...
736
Relative Risk01:12

Relative Risk

Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
2.2K
Transcription Factors02:16

Transcription Factors

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...
82.8K
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
18.4K
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
309