[The association of genetic polymorphism of dendritic cell-specific ICAM-grabbing nonintegrin and hepatitis C infection].
OBJECTIVE
To investigate the association of genetic polymorphism of dendritic cell-specific ICAM-grabbing nonintegrin (DC-SIGNR) and hepatitis C infection.


METHODS
Patients with hepatitis C (n = 268) were genotyped and analysed for the repeat sequences polymorphism of DC-SIGNR using PCR and DNA sequencing. HCV virus load and HCV RNA genotypes were analyzed. Inter-group comparison was analyzed using LSD method.


RESULTS
No significant correlation was found between DC-SIGNR genotypes/ alleles and HCV RNA genotypes in patients. HCV-infected patients with 7-repeat (medium) alleles had lower HCV RNA levels compared to patients with 9-repeat (onger) alleles (P = 0.036). HCV-infected patients with 7/7 genotype had lower HCV RNA levels compared to patients with 9/7 genotype (P = 0.025). These findings suggest that optimal attachment of hepatitis C virions to DC-SIGNR may be associated with longer alleles.


CONCLUSIONS
The fact that DC-SIGNR polymorphism might affect HCV loads supports the concept that DC-SIGNR contributes to HCV replication efficacy. There is no significant correlation between the genetic polymorphism of DC-SIGNR and HCV-RNA genotypes.
The Third People's Hospital of Shenzhen (Shenzhen Donghu Hospital), Shenzhen 518020, China. xinyiwang001@yahoo.com.cn
Min
M
Wang
Hong-xing
HX
Han
Jian
J
Lu
Sai-yu
SY
Liu
Qiang
Q
Jiang
D000293:Adolescent; D000328:Adult; D000368:Aged; D000483:Alleles; D015815:Cell Adhesion Molecules / Q000235:genetics*; D002648:Child; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D016174:Hepacivirus / Q000235:genetics*; D019698:Hepatitis C, Chronic / Q000208:ethnology / Q000235:genetics* / Q000821:virology; D006801:Humans; D037181:Lectins, C-Type / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic; D012367:RNA, Viral; D011956:Receptors, Cell Surface / Q000235:genetics*; D019562:Viral Load; D055815:Young Adult; D000099215:DC-Specific ICAM-3 Grabbing Nonintegrin
D015815:Cell Adhesion Molecules; D037181:Lectins, C-Type; D012367:RNA, Viral; D011956:Receptors, Cell Surface; D000099215:DC-Specific ICAM-3 Grabbing Nonintegrin