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Bacchiarri F, Gozzetti A, Mondanelli N, Lazzi S, Bocchia M. A case of bone lesion in a patient with relapsed chronic lymphocytic leukemia and review of the literature. Clin Case Rep 2022; 10:e05379. [PMID: 35414919 PMCID: PMC8979145 DOI: 10.1002/ccr3.5379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 07/25/2021] [Accepted: 09/20/2021] [Indexed: 11/18/2022] Open
Abstract
Skeletal involvement in CLL is very rare. We present a case of ileum bone lesion during in a patient receiving 5th line of therapy. Despite radiotherapy and salvage therapies, subsequent bone lesions led to a fatal outcome. Further studies on the mechanism by which bone disease develops are currently needed.
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Affiliation(s)
| | | | | | - Stefano Lazzi
- Anatomic Pathology Department University of Siena Siena Italy
| | - Monica Bocchia
- Department of Hematology University of Siena Siena Italy
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Giannoni P, Marini C, Cutrona G, Matis S, Capra MC, Puglisi F, Luzzi P, Pigozzi S, Gaggero G, Neri A, Todoerti K, Morabito F, Ibatici A, Miglino M, Bergamaschi M, Bruno S, Sambuceti GM, Ravetti JL, Ferrarini M, Fais F, de Totero D. Chronic lymphocytic leukemia cells impair osteoblastogenesis and promote osteoclastogenesis: role of TNFα, IL-6 and IL-11 cytokines. Haematologica 2020; 106:2598-2612. [PMID: 32855274 PMCID: PMC8485691 DOI: 10.3324/haematol.2019.231456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Indexed: 01/18/2023] Open
Abstract
Bone skeletal alterations are no longer considered a rare event in Chronic Lymphocytic Leukemia (CLL), especially at more advanced stages of the disease. This study is aimed at elucidating the mechanisms underlying this phenomenon. Bone marrow stromal cells, induced to differentiate toward osteoblasts in osteogenic medium, appeared unable to complete their maturation upon co-culture with CLL cells, CLL cells-derived conditioned media (CLL-cm) or CLL-sera (CLL-sr). Inhibition of osteoblast differentiation was documented by decreased levels of RUNX2 and osteocalcin mRNA expression, by increased osteopontin and DKK-1 mRNA levels, and by a marked reduction of mineralized matrix deposition. The addition of neutralizing TNFα, IL-11 or anti-IL-6R monoclonal antibodies to these co-cultures resulted into restoration of bone mineralization, indicating the involvement of these cytokines: these findings were further supported by silencing TNFα, IL-11 and IL-6 in leukemic cells. We also demonstrated that the addition of CLL-cm to monocytes, previously stimulated with MCSF and RANKL, significantly amplified the formation of large mature osteoclasts as well as their bone resorption activity. Moreover enhanced osteoclastogenesis, induced by CLL-cm, was significantly reduced by treating cultures with the anti-TNFα moAb Infliximab; an analogous effect was observed by the use of the BTK inhibitor Ibrutinib. CLL cells, co-cultured with mature osteoclasts, were interestingly protected from apoptosis and upregulated Ki-67. These experimental results parallel the direct correlation between TNFα amounts in CLL sera and the degree of compact bone erosion we previously described, further strengthening the indication of a reciprocal influence between leukemic cells expansion and bone structure derangement.
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Affiliation(s)
- Paolo Giannoni
- Dept. of Experimental Medicine, Biology Section, University of Genoa, Italy
| | - Cecilia Marini
- CNR Institute of Bioimages and Molecular Physiology, Milan, Italy
| | - Giovanna Cutrona
- Molecular Pathology Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Serena Matis
- Molecular Pathology Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | | | - Francesca Puglisi
- Dept. of Experimental Medicine, Biology Section, University of Genoa, Italy
| | - Paola Luzzi
- Dept. of Experimental Medicine, Biology Section, University of Genoa, Italy
| | - Simona Pigozzi
- Pathological Anatomy Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Gabriele Gaggero
- Pathologycal Anatomy Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Antonino Neri
- Dept. of Oncology and Hemato-Oncology,University of Milan, Italy
| | - Katia Todoerti
- Dept. of Oncology and Hemato-Oncology,University of Milan, Italy
| | - Fortunato Morabito
- Biotechnology Research Unit, Azienda Ospedaliera Aprigliano, Cosenza, Italy
| | - Adalberto Ibatici
- Hematology Clinic, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Maurizio Miglino
- Hematology Clinic, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | | | - Silvia Bruno
- Dept. of Experimental Medicine, Anatomy Section, University of Genoa, Italy
| | | | - Jean Louis Ravetti
- Pathological Anatomy Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Manlio Ferrarini
- Dept. of Experimental Medicine, Anatomy Section, University of Genoa, Italy
| | - Franco Fais
- Molecular Pathology Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy
| | - Daniela de Totero
- Molecular Pathology Unit, IRCCS-Ospedale Policlinico San Martino, Genoa, Italy;
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Geng HY, Feng ZJ, Zhang JJ, Li GY. Exosomal CLIC1 released by CLL promotes HUVECs angiogenesis by regulating ITGβ1-MAPK/ERK axis. Kaohsiung J Med Sci 2020; 37:226-235. [PMID: 32841520 DOI: 10.1002/kjm2.12287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidences have suggested that exosomes are closely associated with tumor progression by affecting cell-cell communication. Here, we aimed to investigate the roles and regulatory mechanism of exosomes released from chronic lymphocytic leukemia (CLL). The expression levels of genes and proteins in cells and exosomes were examined by quantitative real-time PCR and Western blotting, respectively. MEC-1 cell-derived exosomes were obtained and co-cultured with human umbilical vein endothelial cells (HUVECs), then the capabilities of cell proliferation, metastasis and angiogenesis of HUVECs were measured by CCK-8, wound healing, transwell and tube formation assay, respectively. Chloride intracellular channel 1 (CLIC1) was significantly increased in CLL patients and markedly enriched in exosomes secreted by CLL cells. Exosomal CLIC1 secreted from MEC-1 cells were successfully transferred into HUVECs and significantly promoted the phenotypes of proliferation, metastasis and angiogenesis of HUVECs. Mechanically, exosomal CLIC1 secreted from MEC-1 cells obviously activated MAPK/ERK signaling through upregulating integrin β1 (ITGβ1) expression in HUVECs. Furthermore, rescue experiments revealed that either silencing ITGβ1 or PD98059 treatment obviously reversed the regulatory effects of exosomal CLIC1 secreted from MEC-1 cells in HUVECs. In conclusion, CLL cell-derived exosomes accelerated HUVECs metastasis and angiogenesis through transferring CLIC1 to regulate ITGβ1-MAPK/ERK signaling, indicating that CLIC1 may be a therapeutic target of CLL exosomes in the tumor microenvironment.
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Affiliation(s)
- Hua-Yun Geng
- Department of Hematology, Liaocheng Dongchangfu People's Hospital, Liaocheng, Shandong Province, P.R. China
| | - Zhen-Jun Feng
- Department of Hematology, Liaocheng People's Hospital, Liaocheng, Shandong Province, P.R. China
| | - Jing-Jing Zhang
- Department of Hematology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, P.R. China
| | - Guang-Yao Li
- Department of Hematology, Liaocheng People's Hospital, Liaocheng, Shandong Province, P.R. China
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Solitary Lytic Bone Metastasis: A Rare Presentation of Small Lymphocytic Leukemia. Case Rep Hematol 2018; 2018:6154709. [PMID: 30510816 PMCID: PMC6232806 DOI: 10.1155/2018/6154709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 11/17/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) is a hematologic malignancy characterized by an over accumulation of incompetent neoplastic lymphocytes. Bone metastasis in CLL/SLL is very rare. We report a case of a 76-year-old Caucasian female presented with an unresolving pulmonary infiltrate with mediastinal lymphadenopathy concerning for malignancy. Positron emission tomography (PET)/computed tomography (CT) showed an infiltrative mass in the mediastinum with diffuse uptake and a hypermetabolic mass within the left iliac bone. Transbronchial biopsy revealed morphology and features of SLL. However, with concern for another primary cancer, a CT-guided biopsy of the PET avid left iliac bone was performed and revealed bone and marrow with involvement of CLL/SLL similar to the chest lymphadenopathy. To our knowledge and after extensive review of medical literature, this is first reported case of SLL with solitary bone metastasis to the hip.
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