Pattern of Recruitment of Immunoregulatory Antigen-Presenting Cells in Malignant Melanoma

Jeffrey R. Lee, Rory R. Dalton, Jane L. Messina, Madhav D. Sharma, David M. Smith, Russell E. Burgess, Fermina Mazzella, Scott J. Antonia, Andrew L. Mellor, David H. Munn

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

The mechanism by which the immune system of a tumor-bearing host acquires tolerance toward tumor antigens is still elusive. Antigen-presenting cells (APCs) are critical regulators of the decision between immune response and tolerance. APCs that express the tryptophan-degrading enzyme indoleamine 2,3-dioxygenase (IDO) have been found to inhibit T-cell responses both in vitro and in vivo. We hypothesized that malignant tumors exploit this mechanism by recruiting IDO-expressing APCs to the tumor-draining lymph nodes. To test this hypothesis, archival tissues and records of 26 cases of lymph node dissection for invasive cutaneous melanoma were obtained. IDO immunohistochemistry was performed on 14 cutaneous tumors and 328 regional lymph nodes. Abnormal accumulations of IDO-positive cells with a monocytoid or plasmacytoid morphology were identified in the perisinusoidal regions of draining lymph nodes in 45% of nodes studied. Recruitment of IDO-positive cells was seen in nodes with and without malignancy. We hypothesize that these IDO-positive APCs may contribute mechanistically to acquired tolerance to tumor antigens. Immunostaining of tumor-draining lymph nodes for abnormal accumulation of IDO-expressing cells might thus constitute an adverse prognostic factor and could contribute to the decision process and the appropriate care of patients with this deadly disease.

Original languageEnglish (US)
Pages (from-to)1457-1466
Number of pages10
JournalLaboratory Investigation
Volume83
Issue number10
DOIs
StatePublished - Oct 1 2003

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Indoleamine-Pyrrole 2,3,-Dioxygenase
Antigen-Presenting Cells
Melanoma
Lymph Nodes
Neoplasms
Neoplasm Antigens
Immune Tolerance
Skin
Lymph Node Excision
Tryptophan
Immune System
Patient Care
Immunohistochemistry
T-Lymphocytes
Enzymes

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Molecular Biology
  • Cell Biology

Cite this

Pattern of Recruitment of Immunoregulatory Antigen-Presenting Cells in Malignant Melanoma. / Lee, Jeffrey R.; Dalton, Rory R.; Messina, Jane L.; Sharma, Madhav D.; Smith, David M.; Burgess, Russell E.; Mazzella, Fermina; Antonia, Scott J.; Mellor, Andrew L.; Munn, David H.

In: Laboratory Investigation, Vol. 83, No. 10, 01.10.2003, p. 1457-1466.

Research output: Contribution to journalArticle

Lee, JR, Dalton, RR, Messina, JL, Sharma, MD, Smith, DM, Burgess, RE, Mazzella, F, Antonia, SJ, Mellor, AL & Munn, DH 2003, 'Pattern of Recruitment of Immunoregulatory Antigen-Presenting Cells in Malignant Melanoma', Laboratory Investigation, vol. 83, no. 10, pp. 1457-1466. https://doi.org/10.1097/01.LAB.0000090158.68852.D1
Lee, Jeffrey R. ; Dalton, Rory R. ; Messina, Jane L. ; Sharma, Madhav D. ; Smith, David M. ; Burgess, Russell E. ; Mazzella, Fermina ; Antonia, Scott J. ; Mellor, Andrew L. ; Munn, David H. / Pattern of Recruitment of Immunoregulatory Antigen-Presenting Cells in Malignant Melanoma. In: Laboratory Investigation. 2003 ; Vol. 83, No. 10. pp. 1457-1466.
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