Disialoganglioside G D2 and a novel tumor antigen: Potential targets for immunotherapy of desmoplastic small round cell tumor Journal Article
| Authors: | Modak, S.; Gerald, W.; Cheung, N. K. V. |
| Article Title: | Disialoganglioside G D2 and a novel tumor antigen: Potential targets for immunotherapy of desmoplastic small round cell tumor |
| Abstract: | Background. Desmoplastic small round cell tumor (DSRCT) is an aggressive and often misdiagnosed neoplasm of children and young adults. It is chemotherapy-sensitive, yet patients often relapse off therapy because of residual microscopic disease at distant sites: peritoneum, liver, lymph node, and lung. Strategies directed at minimal residual disease (MRD) may be necessary for cure. Monoclonal antibodies selective for cell surface tumor-associated antigens may have utility for diagnosis and therapy of MRD, as recently demonstrated in advanced-stage neuroblastoma (JCO 16: 3053, 1998). We examined DSRCT samples for the expression of two tumor antigens that could serve as possible targets for antibody-based immunotherapeutic approaches. Procedures. Using immunohistochemistry, we studied the expression of two antigens: (1) G D2 using antibody 3F8 and (2) a novel antigen using antibody 8H9 in a panel of 46 freshly frozen DSRCT. G D2 is a disialoganglioside, which is widely expressed among neuroectodermal tumors as well as adult sarcomas. 8H9 recognizes a 58 kDa surface antigen expressed among neuroectodermal, mesenchymal, and epithelial tumors with restricted expression on normal tissues. Results. Thirty-two of 46 (70%) tumors were reactive with 3F8, and 44 of 46 (96%) with 8H9. Both G D2 and the 58 kDa antigen were localized to tumor cell membrane and stroma. In general, immunoreactivity was stronger and more homogeneous with 8H9 than with 3F8. There was no correlation between expression of either antigen or clinical outcome. Conclusions. G D2 and the novel tumor antigen recognized by 8H9 are potential targets for immunodiagnosis and antibody-based therapy of DSRCT. © 2002 Wiley-Liss, Inc. |
| Keywords: | immunohistochemistry; adolescent; adult; clinical article; controlled study; human tissue; middle aged; unclassified drug; disease course; doxorubicin; nonhuman; drug targeting; cancer radiotherapy; antineoplastic agent; neoplasm; neoplasms; antigen expression; animal cell; mouse; cancer immunotherapy; immunoreactivity; tumor antigen; monoclonal antibody; sarcoma; membrane antigen; immunology; antibodies, monoclonal; immunotherapy; antigens, neoplasm; immunoglobulin g; diagnostic agent; ganglioside gd2; cell membrane; tumor cell; stroma; serodiagnosis; antibodies; frozen section; neuroectoderm tumor; epithelium tumor; monoclonal antibody 3f8; antigens, surface; desmoplastic small round cell tumor; gangliosides; ganglioside; 3f8 antibody; ganglioside, gd2; monoclonal; mesenchymoma; monoclonal antibody 8h9; immunological procedures; disialoganglioside gd2; humans; human; male; female; priority journal; article; immunologic tests |
| Journal Title: | Medical and Pediatric Oncology |
| Volume: | 39 |
| Issue: | 6 |
| ISSN: | 0098-1532 |
| Publisher: | Wiley Liss |
| Date Published: | 2002-12-01 |
| Start Page: | 547 |
| End Page: | 551 |
| Language: | English |
| DOI: | 10.1002/mpo.10151 |
| PUBMED: | 12376975 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Export Date: 14 November 2014 -- Source: Scopus |
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