Fas ligand expression in primary colon adenocarcinomas: Evidence that the Fas counterattack is a prevalent mechanism of immune evasion in human colon cancer

Typeset version

 

TY  - JOUR
  - O'Connell, J.,Bennett, M. W.,O'Sullivan, G. C.,Roche, D.,Kelly, J.,Collins, J. K.,Shanahan, F.
  - 1998
  - November
  - Fas ligand expression in primary colon adenocarcinomas: Evidence that the Fas counterattack is a prevalent mechanism of immune evasion in human colon cancer
  - Validated
  - ()
  - 186
  - 33
  - 240
  - 246240
  - Fas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.Fas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.
  - 0022-34170022-3417
  - ://WOS:000076803000004://WOS:000076803000004
DA  - 1998/11
ER  - 
@article{V235379822,
   = {O'Connell,  J. and Bennett,  M. W. and O'Sullivan,  G. C. and Roche,  D. and Kelly,  J. and Collins,  J. K. and Shanahan,  F. },
   = {1998},
   = {November},
   = {Fas ligand expression in primary colon adenocarcinomas: Evidence that the Fas counterattack is a prevalent mechanism of immune evasion in human colon cancer},
   = {Validated},
   = {()},
   = {186},
   = {33},
  pages = {240--246240},
   = {{Fas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.Fas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.}},
  issn = {0022-34170022-3417},
   = {://WOS:000076803000004://WOS:000076803000004},
  source = {IRIS}
}
AUTHORSO'Connell, J.,Bennett, M. W.,O'Sullivan, G. C.,Roche, D.,Kelly, J.,Collins, J. K.,Shanahan, F.
YEAR1998
MONTHNovember
JOURNAL_CODE
TITLEFas ligand expression in primary colon adenocarcinomas: Evidence that the Fas counterattack is a prevalent mechanism of immune evasion in human colon cancer
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME186
ISSUE33
START_PAGE240
END_PAGE246240
ABSTRACTFas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.Fas ligand (FasL) kills sensitive Pas receptor (FasR)-bearing cells by inducing apoptosis. FasL expressed by non-lymphoid cells within the eye and the testis mediates immune privilege by inducing apoptosis of Pas-sensitive infiltrating pro-inflammatory immune effector cells. It has previously been demonstrated by the present authors that the colon cancer cell SW620 expresses FasL and can kill lymphoid cells bg Fas-mediated apoptosis in vitro. This 'Fas counterattack' was subsequently confirmed by others as a potential mechanism of immune privilege in various malignancies. The aim of the present study was to ascertain the prevalence of FasL expression in human colon cancer and to confirm that neoplastic colonic epithelial cells express FasL in vivo. The study of FasL expression by colon cancer cell lines was extended: it was shown that seven of eight colon adenocarcinoma cell lines expressed FasL mRNA, using reverse transcription-polymerase chain reaction (RT-PCR), Prevalent expression of FasL was confirmed in vivo: all the resected colonic tumours examined (31/31) were found to express FasL, In the rumours, FasL protein and mRNA were co-localized to neoplastic colonic epithelial cells, using immunohistochemistry and in situ hybridization, respectively, FasL expression was Independent of Dukes' stage, suggesting that it may occur throughout colon cancer progression, These results suggest that Past is a common mediator of immune privilege in colon cancer. (C) 1998 John Wiley ; Sons, Ltd.
PUBLISHER_LOCATION
ISBN_ISSN0022-34170022-3417
EDITION
URL://WOS:000076803000004://WOS:000076803000004
DOI_LINK
FUNDING_BODY
GRANT_DETAILS