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Merchand-Reyes G, Santhanam R, Valencia-Pena ML, Kumar K, Mo X, Belay T, Woyach JA, Mundy-Bosse B, Tridandapani S, Butchar JP. Active Hexose-Correlated Compound Shows Direct and Indirect Effects against Chronic Lymphocytic Leukemia. Nutrients 2023; 15:5138. [PMID: 38140397 PMCID: PMC10747249 DOI: 10.3390/nu15245138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is a disease characterized by the accumulation of mature CD19+CD5+CD23+ B cells in the bloodstream and in lymphoid organs. It usually affects people over 70 years of age, which limits the options for treatments. The disease is typically well-managed, but to date is still incurable. Hence, the need for novel therapeutic strategies remains. Nurse-like cells (NLCs) are major components of the microenvironment for CLL, supporting tumor cell survival, proliferation, and even drug resistance. They are of myeloid lineage, guided toward differentiating into their tumor-supportive role by the CLL cells themselves. As such, they are analogous to tumor-associated macrophages and represent a major therapeutic target. Previously, it was found that a mushroom extract, Active Hexose-Correlated Compound (AHCC), promoted the death of acute myeloid leukemia cells while preserving normal monocytes. Given these findings, it was asked whether AHCC might have a similar effect on the abnormally differentiated myeloid-lineage NLCs in CLL. CLL-patient PBMCs were treated with AHCC, and it was found that AHCC treatment showed a direct toxic effect against isolated CLL cells. In addition, it significantly reduced the number of tumor-supportive NLCs and altered their phenotype. The effects of AHCC were then tested in the Eµ-TCL1 mouse model of CLL and the MllPTD/WT Flt3ITD/WT model of AML. Results showed that AHCC not only reduced tumor load and increased survival in the CLL and AML models, but it also enhanced antitumor antibody treatment in the CLL model. These results suggest that AHCC has direct and indirect effects against CLL and that it may be of benefit when combined with existing treatments.
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Affiliation(s)
- Giovanna Merchand-Reyes
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
| | - Ramasamy Santhanam
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
| | - Maria L. Valencia-Pena
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
| | - Krishan Kumar
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
| | - Xiaokui Mo
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Tesfaye Belay
- Department of Applied Sciences and Mathematics, Bluefield State University, Bluefield, WV 24701, USA
| | - Jennifer A. Woyach
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Bethany Mundy-Bosse
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Susheela Tridandapani
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Jonathan P. Butchar
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH 43210, USA; (G.M.-R.)
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
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Chocholska S, Zarobkiewicz M, Szymańska A, Lehman N, Woś J, Bojarska-Junak A. Prognostic Value of the miR-17~92 Cluster in Chronic Lymphocytic Leukemia. Int J Mol Sci 2023; 24:ijms24021705. [PMID: 36675221 PMCID: PMC9866777 DOI: 10.3390/ijms24021705] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/17/2023] Open
Abstract
The aim of this study was to investigate the expression of miR-17∼92 cluster members in chronic lymphocytic leukemia (CLL) patients. Six microRNAs (miRNAs)-miR-17, miR-18a, miR-19a, miR-19b-1, miR-20a, and miR-92a-1-very poorly characterized in CLL patients, were chosen for the study to consider their possible role as cancer biomarkers. It is currently unclear to which extent miR-17~92 expression is related to other routinely measured CLL markers, and whether the findings can be of any clinical significance. To achieve this goal, we report the expression levels of these miRNAs detected by RT-qPCR in purified CD19+ B lymphocytes of 107 CLL patients and correlate them with existing clinical data. The study provides new evidence regarding the heterogeneity of miR-17~92 cluster members' expression in CLL patients. Higher miR-17-5p expression was associated with unfavorable prognostic factors (i.e., 17p and 11q deletions, CD38 and ZAP-70 expression). On the other hand, miR-19a, miR-20a, and miR-92a-1 negatively correlated with these adverse factors. The presence of del(13q) as a sole aberration was associated with a significantly lower miR-17-5p as well as higher miR-19a-3p and miR-92a-1-5p expression compared to patients carrying unfavorable genetic aberrations. Particularly, miR-20a could be considered an independent favorable prognostic factor. In a multivariate analysis, high miR-20a expression remained an independent marker predicting long TTT (time to treatment) for CLL patients.
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Affiliation(s)
- Sylwia Chocholska
- Department of Haematooncology and Bone Marrow Transplantation, Medical University of Lublin, 20-080 Lublin, Poland
| | - Michał Zarobkiewicz
- Department of Clinical Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Agata Szymańska
- Department of Clinical Transplantology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Natalia Lehman
- Department of Clinical Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Justyna Woś
- Department of Clinical Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Agnieszka Bojarska-Junak
- Department of Clinical Immunology, Medical University of Lublin, 20-093 Lublin, Poland
- Correspondence: ; Tel.: +48-81-4486420
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Liu Y, Song Y, Yin Q. Effects of ibrutinib on T-cell immunity in patients with chronic lymphocytic leukemia. Front Immunol 2022; 13:962552. [PMID: 36059445 PMCID: PMC9437578 DOI: 10.3389/fimmu.2022.962552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/28/2022] [Indexed: 12/15/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL), a highly heterogeneous B-cell malignancy, is characterized by tumor microenvironment disorder and T-cell immune dysfunction, which play a major role in the proliferation and survival of CLL cells. Ibrutinib is the first irreversible inhibitor of Bruton’s tyrosine kinase (BTK). In addition to targeting B-cell receptor (BCR) signaling to kill tumor cells, increasing evidence has suggested that ibrutinib regulates the tumor microenvironment and T-cell immunity in a direct and indirect manner. For example, ibrutinib not only reverses the tumor microenvironment by blocking cytokine networks and toll-like receptor signaling but also regulates T cells in number, subset distribution, T-cell receptor (TCR) repertoire and immune function by inhibiting interleukin-2 inducible T-cell kinase (ITK) and reducing the expression of inhibitory receptors, and so on. In this review, we summarize the current evidence for the effects of ibrutinib on the tumor microenvironment and cellular immunity of patients with CLL, particularly for the behavior and function of T cells, explore its potential mechanisms, and provide a basis for the clinical benefits of long-term ibrutinib treatment and combined therapy based on T-cell-based immunotherapies.
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