Preliminary analysis of double-negative T, double-positive T, and natural killer T-like cells in B-cell chronic lymphocytic leukemia

© 2023 The Authors. Cancer Medicine published by John Wiley & Sons Ltd..

BACKGROUND: B-cell chronic lymphocytic leukemia (B-CLL) is characterized by the expansion of CD5+ malignant B lymphocytes. Recent discoveries have shown that double-negative T (DNT) cells, double-positive T (DPT) cells, and natural killer T (NKT)-cells may be involved in tumor surveillance.

METHODS: A detailed immunophenotypic analysis of the peripheral blood T-cell compartment of 50 patients with B-CLL (classified in three prognostic groups) and 38 healthy donors (as controls) matched for age was performed. The samples were analyzed by flow cytometry using a stain-lyse-no wash technique and a comprehensive six-color antibody panels.

RESULTS: Our data confirmed a reduction in percentage values and an increase in absolute values of T lymphocytes in patients with B-CLL, as already reported. In particular, DNT, DPT, and NKT-like percentages were significantly lower than in the controls, except for NKT-like in the low-risk prognostic group. Moreover, a significant rise in the absolute counts of DNT cells in each prognostic group and in the low-risk prognostic group of NKT-like cells was found. A significant correlation of the absolute values of NKT-like cells in the intermediate-risk prognostic group versus B cells was observed. Furthermore, we analyzed whether the increase in T cells was related to the subpopulations of interest. Only DNT cells were positively correlated with the increase in CD3+ T lymphocytes, regardless of the stage of the disease, supporting the hypothesis that this T-cell subset plays a key role in the immune T response in B-CLL.

CONCLUSION: These early results supported that DNT, DPT, and NKT-like subsets may be related to disease progression and should encourage further studies aimed at identifying the potential immune surveillance role of these minority T subpopulations.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Cancer medicine - 12(2023), 12 vom: 18. Juni, Seite 13241-13255

Sprache:

Englisch

Beteiligte Personen:

Valvano, Luciana [VerfasserIn]
Nozza, Filomena [VerfasserIn]
D'Arena, Giovanni [VerfasserIn]
D'Auria, Fiorella [VerfasserIn]
De Luca, Luciana [VerfasserIn]
Pietrantuono, Giuseppe [VerfasserIn]
Mansueto, Giovanna [VerfasserIn]
Villani, Oreste [VerfasserIn]
D'Agostino, Simona [VerfasserIn]
Lamorte, Daniela [VerfasserIn]
Calice, Giovanni [VerfasserIn]
Statuto, Teodora [VerfasserIn]

Links:

Volltext

Themen:

Chronic lymphocytic leukemia
Double-negative T cells
Double-positive T cells
Flow cytometry
Immune surveillance
Journal Article
Lymphocytes
Natural killer T-like cells
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 04.07.2023

Date Revised 05.07.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/cam4.6015

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM356436403