Association of ICAM3 genetic variant with severe acute respiratory syndrome.

Abstract

Genetic polymorphisms have been demonstrated to be associated with vulnerability to human infection. ICAM3, an intercellular adhesion molecule important for T cell activation, and FCER2 (CD23), an immune response gene, both located on chromosome 19p13.3, were investigated for host genetic susceptibility and association with clinical outcome. A case-control study based on 817 patients with confirmed severe acute respiratory syndrome (SARS), 307 health care worker control subjects, 290 outpatient control subjects, and 309 household control subjects unaffected by SARS from Hong Kong was conducted to test for genetic association. No significant association to susceptibility to SARS infection caused by the novel coronavirus (SARS-CoV) was found for the FCER2 and the ICAM3 single nucleotide polymorphisms. However, patients with SARS homozygous for ICAM3 Gly143 showed significant association with higher lactate dehydrogenase levels (P=.0067; odds ratio [OR], 4.31 [95% confidence interval {CI}, 1.37-13.56]) and lower total white blood cell counts (P=.022; OR, 0.30 [95% CI, 0.10-0.89]) on admission. These findings support the role of ICAM3 in the immunopathogenesis of SARS.

• Authors: Kelvin Y K Chan, Johannes C Y Ching, M S Xu, Annie N Y Cheung, Shea-Ping Yip, Loretta Y C Yam, Sik-To Lai, Chung-Ming Chu, Andrew T Y Wong, You-Qiang Song, Fang-Ping Huang, Wei Liu, P H Chung, G M Leung, Eudora Y D Chow, Eric Y T Chan, Jane C K Chan, Hextan Y S Ngan, Paul Tam, Li-Chong Chan, Pak Sham, Vera S F Chan, Malik Peiris, Steve C L Lin, Ui-Soon Khoo
• Journal: The Journal of infectious diseases (J Infect Dis) Vol. 196 Issue 2 Pg. 271-80 (Jul 15 2007) ISSN: 0022-1899 [Print] United States
• PMID: 17570115 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)

Chemical References

• Antigens, CD
• Cell Adhesion Molecules
• ICAM3 protein, human
• L-Lactate Dehydrogenase

Topics

• Adolescent
• Adult
• Aged
• Aged, 80 and over
• Antigens, CD (genetics)
• Case-Control Studies
• Cell Adhesion Molecules (genetics)
• Child
• Child, Preschool
• Female
• Gene Frequency
• Genetic Predisposition to Disease
• Genotype
• Humans
• L-Lactate Dehydrogenase (blood)
• Leukocyte Count
• Male
• Middle Aged
• Polymorphism, Single Nucleotide (genetics)
• Severe Acute Respiratory Syndrome (genetics, physiopathology)