PMID- 36440594 OWN - NLM STAT- MEDLINE DCOM- 20230405 LR - 20230409 IS - 2045-7634 (Electronic) IS - 2045-7634 (Linking) VI - 12 IP - 6 DP - 2023 Mar TI - A comprehensive assessment of lymphocyte subsets, their prognostic significance, and changes after first-line therapy administration in patients with chronic lymphocytic leukemia. PG - 6956-6970 LID - 10.1002/cam4.5492 [doi] AB - BACKGROUND: In chronic lymphocytic leukemia (CLL), changes in the peripheral blood lymphocyte subsets play an important role in disease progression and infectious complications. The impact of chemoimmunotherapy (CIT) on these changes has not been extensively studied METHODS: We used multi-color flow cytometry, to prospectively measure absolute and relative numbers of CD4(+) and CD8(+) T-cells and their subsets in 45 patients with indolent untreated CLL, 86 patients indicated for first-line treatment, and 34 healthy controls. In 55 patients, we analyzed the impact of CIT RESULTS: CLL patients had a significant increase in most cell populations in comparison to controls. Progression of CLL was characterized by significantly elevated counts with the exception of a lower percentage of naive T-cells. After treatment, the percentage of naive T-cells further decreased at the expense of effector memory T-cells (TEM). In patients with indolent CLL, higher percentages of naive CD4(+) (p = 0.0026) and naive CD8(+) (p = 0.023) T-cells were associated with a longer time to first treatment (TTFT). The elevation of CD4(+) central memory T-cells (TCM) (p = 0.27) and TEM (p = 0.003) counts and a higher percentage of CD4(+) TEM (p = 0.0047), were linked with shorter TTFT. In treated patients, increased regulatory T-cells count was associated with shorter time to next treatment (TTNT) (p = 0.042), while higher CD4(+) TCM count with shorter TTNT (p = 0.035) and shorter overall survival (p = 0.041). CONCLUSION: Our results indicate that naive cell depletion and CD4(+) TCM and TEM increases are detrimental to CLL patients' prognosis. CI - (c) 2022 The Authors. Cancer Medicine published by John Wiley & Sons Ltd. FAU - Vodarek, Pavel AU - Vodarek P AUID- ORCID: 0000-0002-8050-7594 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Ecsiova, Dominika AU - Ecsiova D AUID- ORCID: 0000-0002-6897-8756 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Rezacova, Vladimira AU - Rezacova V AUID- ORCID: 0000-0001-5802-1371 AD - Institute of Clinical Immunology and Allergology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Soucek, Ondrej AU - Soucek O AUID- ORCID: 0000-0003-3137-4200 AD - Institute of Clinical Immunology and Allergology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Simkovic, Martin AU - Simkovic M AUID- ORCID: 0000-0003-0331-5334 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Vokurkova, Doris AU - Vokurkova D AUID- ORCID: 0000-0001-6979-2825 AD - Institute of Clinical Immunology and Allergology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Belada, David AU - Belada D AUID- ORCID: 0000-0002-4981-6188 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Zak, Pavel AU - Zak P AUID- ORCID: 0000-0003-4465-5343 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. FAU - Smolej, Lukas AU - Smolej L AUID- ORCID: 0000-0002-4187-8595 AD - 4th Department of Internal Medicine - Hematology, Faculty of Medicine, University Hospital and Charles University, Hradec Kralove, Czech Republic. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221128 PL - United States TA - Cancer Med JT - Cancer medicine JID - 101595310 SB - IM MH - Humans MH - *Leukemia, Lymphocytic, Chronic, B-Cell MH - Prognosis MH - CD8-Positive T-Lymphocytes MH - Lymphocyte Subsets MH - T-Lymphocytes, Regulatory MH - T-Lymphocyte Subsets MH - CD4-Positive T-Lymphocytes PMC - PMC10067047 OTO - NOTNLM OT - CLL OT - chemoimmunotherapy OT - immunosuppression OT - infections OT - lymphocyte subset OT - prognosis COIS- Pavel Vodarek reports consultations for Roche, Gilead, Janssen-Cilag and Servier, research funding from Roche, honoraria and travel grants from AbbVie, Roche, Gilead, Janssen-Cilag, Servier, and Celgene. Martin Simkovic reports consultancy fees, advisory board participation fees, travel grants, and honoraria from Janssen-Cilag, Gilead, Roche, AstraZeneca, and AbbVie. David Belada reports consultancy fees, advisory board participation fees, travel grants and honoraria from Roche, Takeda, Gilead, and Janssen Cilag. Lukas Smolej reports honoraria, consultancy fees and travel grants from Roche, AbbVie, Janssen, and AstraZeneca. Other authors report no conflicts of interest. EDAT- 2022/11/29 06:00 MHDA- 2023/04/05 06:42 PMCR- 2022/11/28 CRDT- 2022/11/28 05:13 PHST- 2022/10/03 00:00 [revised] PHST- 2022/07/27 00:00 [received] PHST- 2022/11/18 00:00 [accepted] PHST- 2023/04/05 06:42 [medline] PHST- 2022/11/29 06:00 [pubmed] PHST- 2022/11/28 05:13 [entrez] PHST- 2022/11/28 00:00 [pmc-release] AID - CAM45492 [pii] AID - 10.1002/cam4.5492 [doi] PST - ppublish SO - Cancer Med. 2023 Mar;12(6):6956-6970. doi: 10.1002/cam4.5492. Epub 2022 Nov 28.