Volume 184, Issue 4 pp. 594-604
Research Paper

Circulating dendritic cells deficiencies as a new biomarker in classical Hodgkin lymphoma

Domenico Galati

Corresponding Author

Domenico Galati

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

Correspondence: Domenico Galati, Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS, Fondazione G. Pascale, Via Mariano Semmola, 80131 Napoli, Italy.

E-mail: [email protected]

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Serena Zanotta

Serena Zanotta

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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Gaetano Corazzelli

Gaetano Corazzelli

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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Dario Bruzzese

Dario Bruzzese

Department of Public Health, Università degli Studi di Napoli Federico II, Napoli, Italia

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Gaetana Capobianco

Gaetana Capobianco

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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Emanuela Morelli

Emanuela Morelli

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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Manuela Arcamone

Manuela Arcamone

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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Rosaria De Filippi

Rosaria De Filippi

Department of Clinical Medicine and Surgery, Università degli Studi di Napoli Federico II, Napoli, Italia

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Antonio Pinto

Antonio Pinto

Haematology-Oncology and Stem-Cell Transplantation Unit, Department of Haematology and Innovative Therapies, Istituto Nazionale Tumori – IRCCS – Fondazione G. Pascale, Napoli, Italia

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First published: 13 November 2018
Citations: 14

Previous presentations

Presented in part at the 59th Annual Meeting of the American Society of Haematology, Atlanta, GA, December 9–12, 2017

Dedication: The authors dedicate this work to the memory of Prof. Luigi Del Vecchio (1955–2018).

Summary

No robust biomarkers have been yet validated to identify the recurrence of disease in classical Hodgkin Lymphoma (cHL) patients upon induction treatment. The relevance of the inflammatory microenvironment in cHL prompted us to investigate the key immunomodulator myeloid dendritic cells type-1 (mDC1), type-2 (mDC2) and plasmacytoid dendritic cells (pDC). Blood DC levels were assessed in 52 newly diagnosed patients through multiparametric flow-cytometry. All but two patients received ABVD regimen (doxorubicin, bleomycin, vinblastine, dacarbazine). The median counts of all DC subsets were lower in cHL patients than in healthy controls (P < 0·001). Median mDC counts were inferior for the advanced vs early stage patients for both mDC1s and mDC2s (P = 0·008; P = 0·0007 respectively). Also, median mDC2 counts were reduced in case of bulky (P = 0·0004) and extra-nodal (P = 0·046) disease. Patients with B symptoms had lower levels for mDC1s (P = 0·046), mDC2s (P = 0·009) and pDCs (P = 0·040). All the DC subtypes increased at the end of treatment in 26 patients (P < 0·001): 4·6-fold for mDC1, 2·4-fold for mDC2, 4·5-fold for pDC and aligned DCs subsets with the reference frequencies and the interquartile ranges of the controls. In conclusion, DCs may contribute to the disturbed immunological interplay typical of cHL, prompting a further evaluation of their value as a potential new biomarker.

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