HLA associations, microsatellite instability and epigenetic changes in thyroid lymphoma in Chinese.
In Chinese, autoimmune thyroid disease (AITD) is very common but lymphoma of the thyroid is a rare disease. Southern Chinese AITD is common in females and is strongly linked to the HLA haplotype A2B46DR9. We studied the HLA association, aberration p15, p16 and p73 promoter methylation and microsatellite instability in Chinese primary thyroid lymphoma patients to elucidate their relationship with AITD and the relationship between thyroid diffuse large cell lymphoma (DLCL) and marginal zone lymphomas (MZL). Despite a female preponderance (8:1) and the finding of cases with histological and immunological evidence of AITD, a significant HLA association was not found. MSI was absent, but aberrant promoter methylation was found in both thyroid MZL and DLCL and p73 methylation was unexpectedly common.
Au
W Y
WY
Department of Medicine, Queen Mary Hospital, Hong Kong, SAR China. auwing@hotmail.com
Fung
A
A
Ma
E S
ES
Shek
T W
TW
Hawkins
B R
BR
Liang
R
R
D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People; D002291:Carcinoma, Papillary / Q000235:genetics / Q000276:immunology / Q000628:therapy; D002681:China / Q000453:epidemiology; D019941:Cyclin-Dependent Kinase Inhibitor p16 / Q000235:genetics; D019175:DNA Methylation; D044127:Epigenesis, Genetic; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006680:HLA Antigens / Q000235:genetics*; D006239:Haplotypes; D006801:Humans; D016393:Lymphoma, B-Cell / Q000235:genetics* / Q000276:immunology / Q000628:therapy; D016403:Lymphoma, Large B-Cell, Diffuse / Q000235:genetics / Q000276:immunology / Q000628:therapy; D008297:Male; D053842:Microsatellite Instability; D008875:Middle Aged; D011401:Promoter Regions, Genetic / Q000235:genetics; D013964:Thyroid Neoplasms / Q000235:genetics* / Q000276:immunology / Q000628:therapy; D013967:Thyroiditis, Autoimmune / Q000235:genetics* / Q000276:immunology / Q000628:therapy
D019941:Cyclin-Dependent Kinase Inhibitor p16; D006680:HLA Antigens