Keywords:
CANCER
;
EXPRESSION
;
tumor
;
carcinoma
;
CELL
;
Germany
;
DISEASE
;
DISEASES
;
GENE
;
GENES
;
SAMPLE
;
SAMPLES
;
cell line
;
TISSUE
;
LINES
;
PATIENT
;
SERA
;
ANTIGEN
;
ANTIGENS
;
SKIN
;
CELL-LINES
;
FREQUENCY
;
FIELD
;
FREQUENCIES
;
RECOGNITION
;
tumor antigens
;
antibodies
;
antibody
;
TARGET
;
colorectal cancer
;
COLORECTAL-CANCER
;
CELL-LINE
;
LINE
;
CANCER-PATIENTS
;
CARCINOEMBRYONIC ANTIGEN
;
RT-PCR
;
IMMUNE-RESPONSE
;
IMMUNOTHERAPY
;
cancer-germline genes
;
MAGE GENES
;
MELANOMA PATIENTS
;
NY-ESO-1
;
sero-reactivity
;
TARGETS
;
CANCER PATIENTS
;
INTERFERON-GAMMA
;
LOCATION
;
CYTOLYTIC T-LYMPHOCYTES
;
SERUM
;
RECOMBINANT
;
COLORECTAL-CARCINOMA
;
TUMOR-ANTIGENS
;
CARCINOMA PATIENTS
;
CELL LYMPHOMA
;
cTAGE
;
GAGE
;
MAGE
Abstract:
The expression of 14 individual and two groups of tumor antigens was characterized for colorectal carcinoma by RT-PCR using 26 colorectal carcinoma specimens, eight cell lines, six samples of patients with inflammatory bowl diseases, and nine specimens from different locations of an individual patient with a metastasized rectal carcinoma. The most frequently detected mRNAs were MAGE-A1 (58%), GAGE-3-7 (54%), and cTAGE-5a (31%). At medium frequencies (12-19%) we found cTAGE-1, MAGE-A2, se57-1, RAGE-4, and GAGE-1,2,8, while other tumor antigens were expressed rarely (〈9%). 85% of the samples were positive for at least one of the most frequently expressed antigens. Using a secondary SEREX approach and sera of eight colorectal cancer patients we found reactive antibodies against recombinant cTAGE-l (2 sera), se57-1 (2), truncated GAGE (1), and MAGE-Al (1). We conclude that certain cancer-germline genes can be detected in colorectal cancer and might therefore be promising targets for immunotherapy. (C) 2003 Elsevier Ltd. All rights reserved
Type of Publication:
Journal article published
Deep Link:
http://www.dkfz.de/cgi-bin/sel?http://www.dkfz.de/PublicationManager/Show/ShowJournal.aspx%3fpublishedId=1128
Permalink