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Zhang Y, Zheng Y, Zhang J, Xu C, Wu J. Apoptotic signaling pathways in bone metastatic lung cancer: a comprehensive analysis. Discov Oncol 2024; 15:310. [PMID: 39060849 PMCID: PMC11282049 DOI: 10.1007/s12672-024-01151-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
This review provides a comprehensive analysis of apoptotic signaling pathways in the context of bone metastatic lung cancer, emphasizing the intricate molecular mechanisms and microenvironmental influences. Beginning with an overview of apoptosis in cancer, the paper explores the specific molecular characteristics of bone metastatic lung cancer, highlighting alterations in apoptotic pathways. Focused discussions delve into key apoptotic signaling pathways, including the intrinsic and extrinsic pathways, and the roles of critical molecular players such as Bcl-2 family proteins and caspases. Microenvironmental factors, such as the tumor microenvironment, extracellular matrix interactions, and immune cell involvement, are examined in depth. The review also addresses experimental approaches and techniques employed in studying apoptotic signaling, paving the way for a discussion on current therapeutic strategies, their limitations, and future prospects. This synthesis contributes a holistic understanding of apoptosis in bone metastatic lung cancer, offering insights for potential therapeutic advancements.
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Affiliation(s)
- Yi Zhang
- Department of Orthopedic Surgery, Ningbo No. 2 Hospital, Ningbo, 315010, Zhejiang, China
- Health Science Center, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Yi Zheng
- Department of Orthopedic Surgery, Ningbo No. 2 Hospital, Ningbo, 315010, Zhejiang, China
| | - Jiakai Zhang
- Department of Orthopedic Surgery, Ningbo No. 2 Hospital, Ningbo, 315010, Zhejiang, China
| | - Chaoyang Xu
- Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Junlong Wu
- Department of Orthopedic Surgery, Ningbo No. 2 Hospital, Ningbo, 315010, Zhejiang, China.
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Shahrokh B, Allahbakhshian FM, Ahmad G, Fatemeh F, Hossein MM. AML-derived extracellular vesicles negatively regulate stem cell pool size: A step toward bone marrow failure. Curr Res Transl Med 2023; 71:103375. [PMID: 36508911 DOI: 10.1016/j.retram.2022.103375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 11/16/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Abstract
PURPOSE OF THE STUDY Long-term repopulating hematopoietic stem cells (LTR-HSCs) have been previously shown to reside in close proximity to osteoblasts, where they take shelter in the bone marrow (BM) microenvironment against cytotoxic and apoptotic stimuli. Nevertheless, the function of the HSC niche is believed to undergo an adaptive evolutionary modification during leukemogenesis. Recent studies have demonstrated that leukemic clones can impact BM homing through extracellular vesicle (EV) secretion. However, the exact mechanism driving BM conversion is still unclear. In the present study, the human osteoblast cell line (MG-63) were subjected to various concentration of sera-derived EVs of patients with acute myeloid leukemia (AML) and healthy volunteers to assess if they are associated strongly enough to alter the expression pattern of cross-talk molecules involved in niche interactions. METHOD To gain a brief insight into the EVs secretion criteria, we first conducted a comparative analysis of sera-derived EVs by dynamic light scattering (DLS), transmission electron microscopy (TEM), and Bradford assay. After incubating MG-63 cell lines with increasing concentrations of the EVs, Trypan-blue and microculture tetrazolium test (MTT) assays were used to evaluate the cell survival, logarithmic growth, and metabolic activity. Finally, the expression levels of OPN, ANGPT-1, and JAG-1 transcripts were evaluated through the qRT-PCR technique. RESULTS Here, we report that AML-derived EVs can affect the viability, cell growth, and metabolic activity of the human osteoblasts cell line (MG-63) compared to those that received healthy-derived EVs. We also found that leukemic EVs tend to induce overexpression of OPN but reduce the expression of ANGPT-1 and JAG-1 genes in the osteoblast transcriptome, which may provide a potential context imposing selective suppression of HSC pool size. CONCLUSION These findings extend the general concept of a novel mechanism in which leukemic EVs would make it possible to create a specialized pre-metastatic microenvironment in the interest of tumor expansion, allowing leukemic clones to overcome their HSCs counterparts.
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Affiliation(s)
- Bahrampour Shahrokh
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farsani Mehdi Allahbakhshian
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; HSCT Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gharehbaghian Ahmad
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Feizi Fatemeh
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadi Mohammad Hossein
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; HSCT Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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3
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Stevenson FK, Forconi F, Kipps TJ. Exploring the pathways to chronic lymphocytic leukemia. Blood 2021; 138:827-835. [PMID: 34075408 PMCID: PMC8432043 DOI: 10.1182/blood.2020010029] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/05/2021] [Indexed: 11/20/2022] Open
Abstract
In chronic lymphocytic leukemia (CLL), increasing knowledge of the biology of the tumor cells has led to transformative improvements in our capacity to assess and treat patients. The dependence of tumor cells on surface immunoglobulin receptor signaling, survival pathways, and accessory cells within the microenvironment has led to a successful double-barreled attack with designer drugs. Studies have revealed that CLL should be classified based on the mutational status of the expressed IGHV sequences into 2 diseases, either unmutated (U) or mutated (M) CLL, each with a distinctive cellular origin, biology, epigenetics/genetics, and clinical behavior. The origin of U-CLL lies among the natural antibody repertoire, and dominance of IGHV1-69 reveals a superantigenic driver. In both U-CLL and M-CLL, a calibrated stimulation of tumor cells by self-antigens apparently generates a dynamic reiterative cycle as cells, protected from apoptosis, transit between blood and tissue sites. But there are differences in outcome, with the balance between proliferation and anergy favoring anergy in M-CLL. Responses are modulated by an array of microenvironmental interactions. Availability of T-cell help is a likely determinant of cell fate, the dependency on which varies between U-CLL and M-CLL, reflecting the different cells of origin, and affecting clinical behavior. Despite such advances, cell-escape strategies, Richter transformation, and immunosuppression remain as challenges, which only may be met by continued research into the biology of CLL.
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MESH Headings
- Animals
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Mutation
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Receptors, Antigen, B-Cell/genetics
- Receptors, Antigen, B-Cell/immunology
- Signal Transduction/genetics
- Signal Transduction/immunology
- Tumor Microenvironment/genetics
- Tumor Microenvironment/immunology
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Affiliation(s)
- Freda K Stevenson
- School of Cancer Sciences, Cancer Research UK Southampton Centre, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Francesco Forconi
- School of Cancer Sciences, Cancer Research UK Southampton Centre, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- Haematology Department, Cancer Care Directorate, University Hospital Southampton NHS Trust, Southampton, United Kingdom; and
| | - Thomas J Kipps
- Center for Novel Therapeutics, Moores Cancer Center, University of California, San Diego, La Jolla, CA
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Jaiswal P, Tripathi V, Nayak A, Kataria S, Lukashevich V, Das A, Parmar HS. A molecular link between diabetes and breast cancer: Therapeutic potential of repurposing incretin-based therapies for breast cancer. Curr Cancer Drug Targets 2021; 21:829-848. [PMID: 34468298 DOI: 10.2174/1568009621666210901101851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 11/22/2022]
Abstract
Female breast cancer recently surpassed lung cancer and became the most commonly diagnosed cancer worldwide. As per the recent data from WHO, breast cancer accounts for one out of every 8 cancer cases diagnosed among an estimated 2.3 million new cancer cases. Breast cancer is the most prevailing cancer type among women causing the highest number of cancer-related mortality. It has been estimated that in 2020, 68,5000 women died due to this disease. Breast cancers have varying degrees of molecular heterogeneity; therefore, they are divided into various molecular clinical sub types. Recent reports suggest that type 2 diabetes (one of the common chronic diseases worldwide) is linked to the higher incidence, accelerated progression, and aggressiveness of different cancers; especially breast cancer. Breast cancer is hormone-dependent in nature and has a cross-talk with metabolism. A number of antidiabetic therapies are known to exert beneficial effects on various types of cancers, including breast cancer. However, only a few reports are available on the role of incretin-based antidiabetic therapies in cancer as a whole and in breast cancer in particular. The present review sheds light on the potential of incretin based therapies on breast cancer and explores the plausible underlying mechanisms. Additionally, we have also discussed the sub types of breast cancer as well as the intricate relationship between diabetes and breast cancer.
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Affiliation(s)
- Pooja Jaiswal
- School of Biotechnology, Devi Ahilya University, Indore-452001. M.P., India
| | - Versha Tripathi
- School of Biotechnology, Devi Ahilya University, Indore-452001. M.P., India
| | - Aakruti Nayak
- School of Biotechnology, Devi Ahilya University, Indore-452001. M.P., India
| | - Shreya Kataria
- School of Biotechnology, Devi Ahilya University, Indore-452001. M.P., India
| | - Vladimir Lukashevich
- Institute of Physiology of the National Academy of Sciences of Belarus, Minsk-220072. Belarus
| | - Apurba Das
- Department of Chemical Sciences, IIT, Indore, Simrol, Indore, M.P., India
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Talib WH, Mahmod AI, Abuarab SF, Hasen E, Munaim AA, Haif SK, Ayyash AM, Khater S, AL-Yasari IH, Kury LTA. Diabetes and Cancer: Metabolic Association, Therapeutic Challenges, and the Role of Natural Products. Molecules 2021; 26:2179. [PMID: 33920079 PMCID: PMC8070467 DOI: 10.3390/molecules26082179] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer is considered the second leading cause of death worldwide and in 2018 it was responsible for approximately 9.6 million deaths. Globally, about one in six deaths are caused by cancer. A strong correlation was found between diabetes mellitus and carcinogenesis with the most evident correlation was with type 2 diabetes mellitus (T2DM). Research has proven that elevated blood glucose levels take part in cell proliferation and cancer cell progression. However, limited studies were conducted to evaluate the efficiency of conventional therapies in diabetic cancer patients. In this review, the correlation between cancer and diabetes will be discussed and the mechanisms by which the two diseases interact with each other, as well as the therapeutics challenges in treating patients with diabetes and cancer with possible solutions to overcome these challenges. Natural products targeting both diseases were discussed with detailed mechanisms of action. This review will provide a solid base for researchers and physicians to test natural products as adjuvant alternative therapies to treat cancer in diabetic patients.
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Affiliation(s)
- Wamidh H. Talib
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Asma Ismail Mahmod
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Sara Feras. Abuarab
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Eliza Hasen
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Amer A. Munaim
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Shatha Khaled Haif
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Amani Marwan Ayyash
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Samar Khater
- Department of Clinical Pharmacy and Therapeutic, Applied Science Private University, Amman 11931-166, Jordan; (A.I.M.); (S.F.A.); (E.H.); (A.A.M.); (S.K.H.); (A.M.A.); (S.K.)
| | - Intisar Hadi AL-Yasari
- Department of Genetic Engineering, College of Biotechnology, Al-Qasim Green University, Babylon 00964, Iraq;
| | - Lina T. Al Kury
- Department of Health Sciences, College of Natural and Health Sciences, Zayed University, Abu Dhabi 144534, United Arab Emirates;
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Gade IS, Richard TS, Chadeneau C, Seite P, Vannier B, Atchade ADT, Seke Etet PF, Talla E, Nwabo Kamdje AH, Muller JM. Anticancer Activity of Combretum fragrans F. Hoffm on Glioblastoma and Prostate Cancer Cell Lines. Asian Pac J Cancer Prev 2021; 22:1087-1093. [PMID: 33906300 PMCID: PMC8325120 DOI: 10.31557/apjcp.2021.22.4.1087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cancer incidence has been growing in an alarming rate worldwide and new therapeutics are needed, particularly for intractable and chemoresistant cases. We evaluated the cytotoxic effects of Combretum fragrans F. Hoffm (Combretaceae) on glioblastoma (U87MG and C6) and prostate (PC-3) cancer cell lines. METHODS The cytotoxic effect of the methanolic extract of the stem bark of Combretum fragrans was assessed using XTT (2,3-bis (2-methoxy-4-nitro-5-sulfophenyl)-5-[(phenylamino) carbonyl]-2H-tetrazolium hydroxide) test. Expressions of Akt and ERK1/2 were determined using Western blot technique, while Caspase-3/7 kits were used to evaluate caspase-3/7 activity. RESULTS C. fragrans extract inhibited the proliferation of U87 (IC50 = 20.13 µg/mL), C6 (IC50 = 12.17 µg/mL), and PC-3 (IC50 = 11.50 µg/mL) cells. Treatment with the extract resulted in lower levels (p < 0.001) of phospho-ERK1/2 and phospho-Akt in U87 cells, and instead, higher levels of phospho-ERK1/2 (p < 0.001) in C6 and PC-3 cells. An increase in caspase-3/7 activity was observed, mainly after 24 hours of treatment, indicating the activation of apoptotic processes. CONCLUSION Altogether, these results suggest that C. fragrans have potent anticancer properties. This plant should be further investigated for developing new anticancer drugs.
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Affiliation(s)
- Isaac Silvère Gade
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon. ,UFR Sciences Fondamentales et Appliquées, Team “Récepteurs, Régulations, Cellules Tumorales” (2RCT)-EA 3842 CAPTuR, Pôle Biologie Santé-Bât. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA, France. ,Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon.
| | - Tagne Simo Richard
- Department of Biomedical Sciences, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon. ,For Correspondence:
| | - Corinne Chadeneau
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon.
| | - Paule Seite
- UFR Sciences Fondamentales et Appliquées, Team “Récepteurs, Régulations, Cellules Tumorales” (2RCT)-EA 3842 CAPTuR, Pôle Biologie Santé-Bât. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA, France.
| | - Brigitte Vannier
- UFR Sciences Fondamentales et Appliquées, Team “Récepteurs, Régulations, Cellules Tumorales” (2RCT)-EA 3842 CAPTuR, Pôle Biologie Santé-Bât. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA, France.
| | - Alex De Theodore Atchade
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon.
| | - Paul F. Seke Etet
- Department of Physiological Sciences and Biochemistry, FMBS, University of Ngaoundere, Garoua, Cameroon.
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon.
| | - Armel H. Nwabo Kamdje
- Department of Biomedical Sciences, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon.
| | - Jean-Marc Muller
- UFR Sciences Fondamentales et Appliquées, Team “Récepteurs, Régulations, Cellules Tumorales” (2RCT)-EA 3842 CAPTuR, Pôle Biologie Santé-Bât. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA, France.
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Bhattacharya M, Sharma AR, Sharma G, Patra BC, Lee SS, Chakraborty C. Interaction between miRNAs and signaling cascades of Wnt pathway in chronic lymphocytic leukemia. J Cell Biochem 2020; 121:4654-4666. [PMID: 32100920 DOI: 10.1002/jcb.29683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022]
Abstract
Chronic lymphocytic leukemia (CLL), a severe problem all over the world and represents around 25% of all total leukemia cases, is generating the need for novel targets against CLL. Wnt signaling cascade regulates cell proliferation, differentiation, and cell death processes. Thus, any alteration of the Wnt signaling pathway protein cascade might develop into various types of cancers, either by upregulation or downregulation of the Wnt signaling pathway protein components. In addition, it is reported that activation of the Wnt signaling pathway is associated with the transcriptional activation of microRNAs (miRNAs) by binding to its promoter region, suggesting feedback regulation. Considering the protein regulatory functions of various miRNAs, they can be approached therapeutically as modulatory targets for protein components of the Wnt signaling pathway. In this article, we have discussed the potential role of miRNAs in the regulation of Wnt signaling pathway proteins related to the pathogenesis of CLL via crosstalk between miRNAs and Wnt signaling pathway proteins. This might provide a clear insight into the Wnt protein regulatory function of various miRNAs and provide a better understanding of developing advanced and promising therapeutic approaches against CLL.
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Affiliation(s)
- Manojit Bhattacharya
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea.,Department of Zoology, Vidyasagar University, Midnapore, West Bengal, India
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Garima Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | | | - Sang-Soo Lee
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University Hospital-College of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal, India
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Kosalai ST, Morsy MHA, Papakonstantinou N, Mansouri L, Stavroyianni N, Kanduri C, Stamatopoulos K, Rosenquist R, Kanduri M. EZH2 upregulates the PI3K/AKT pathway through IGF1R and MYC in clinically aggressive chronic lymphocytic leukaemia. Epigenetics 2019; 14:1125-1140. [PMID: 31216925 PMCID: PMC6773411 DOI: 10.1080/15592294.2019.1633867] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
EZH2 is overexpressed in poor-prognostic chronic lymphocytic leukaemia (CLL) cases, acting as an oncogene; however, thus far, the EZH2 target genes in CLL have not been disclosed. In this study, using ChIP-sequencing, we identified EZH2 and H3K27me3 target genes in two prognostic subgroups of CLL with distinct prognosis and outcome, i.e., cases with unmutated (U-CLL, n = 6) or mutated IGHV genes (M-CLL, n = 6). While the majority of oncogenic pathways were equally enriched for EZH2 target genes in both prognostic subgroups, PI3K pathway genes were differentially bound by EZH2 in U-CLL versus M-CLL. The occupancy of EZH2 for selected PI3K pathway target genes was validated in additional CLL samples (n = 16) and CLL cell lines using siRNA-mediated EZH2 downregulation and ChIP assays. Intriguingly, we found that EZH2 directly binds to the IGF1R promoter along with MYC and upregulates IGF1R expression in U-CLL, leading to downstream PI3K activation. By investigating an independent CLL cohort (n = 96), a positive correlation was observed between EZH2 and IGF1R expression with higher levels in U-CLL compared to M-CLL. Accordingly, siRNA-mediated downregulation of either EZH2, MYC or IGF1R and treatment with EZH2 and MYC pharmacological inhibitors in the HG3 CLL cell line induced a significant reduction in PI3K pathway activation. In conclusion, we characterize for the first time EZH2 target genes in CLL revealing a hitherto unknown implication of EZH2 in modulating the PI3K pathway in a non-canonical, PRC2-independent way, with potential therapeutic implications considering that PI3K inhibitors are effective therapeutic agents for CLL.
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Affiliation(s)
- Subazini Thankaswamy Kosalai
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | | | - Nikos Papakonstantinou
- Institute of Applied Biosciences, Center for Research and Technology Hellas , Thessaloniki , Greece
| | - Larry Mansouri
- Department of Molecular Medicine and Surgery, Karolinska Institutet , Stockholm , Sweden
| | - Niki Stavroyianni
- Hematology Department and HCT Unit, G. Papanicolaou Hospital , Thessaloniki , Greece
| | - Chandrasekhar Kanduri
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Center for Research and Technology Hellas , Thessaloniki , Greece
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet , Stockholm , Sweden
| | - Meena Kanduri
- Department of Clinical chemistry and Transfusion medicine, Sahlgrenska University Hospital , Gothenburg , Sweden
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Role of protein phosphatases in the cancer microenvironment. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:144-152. [DOI: 10.1016/j.bbamcr.2018.07.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/29/2018] [Accepted: 07/11/2018] [Indexed: 12/15/2022]
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10
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Abarrategi A, Mian SA, Passaro D, Rouault-Pierre K, Grey W, Bonnet D. Modeling the human bone marrow niche in mice: From host bone marrow engraftment to bioengineering approaches. J Exp Med 2018; 215:729-743. [PMID: 29453226 PMCID: PMC5839768 DOI: 10.1084/jem.20172139] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/19/2018] [Accepted: 01/30/2018] [Indexed: 12/11/2022] Open
Abstract
Xenotransplantation of patient-derived samples in mouse models has been instrumental in depicting the role of hematopoietic stem and progenitor cells in the establishment as well as progression of hematological malignancies. The foundations for this field of research have been based on the development of immunodeficient mouse models, which provide normal and malignant human hematopoietic cells with a supportive microenvironment. Immunosuppressed and genetically modified mice expressing human growth factors were key milestones in patient-derived xenograft (PDX) models, highlighting the importance of developing humanized microenvironments. The latest major improvement has been the use of human bone marrow (BM) niche-forming cells to generate human-mouse chimeric BM tissues in PDXs, which can shed light on the interactions between human stroma and hematopoietic cells. Here, we summarize the methods used for human hematopoietic cell xenotransplantation and their milestones and review the latest approaches in generating humanized BM tissues in mice to study human normal and malignant hematopoiesis.
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Affiliation(s)
- Ander Abarrategi
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
| | - Syed A Mian
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
- Department of Haematological Medicine, King's College London School of Medicine, London, England, UK
| | - Diana Passaro
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
| | - Kevin Rouault-Pierre
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
- Department of Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, England, UK
| | - William Grey
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
| | - Dominique Bonnet
- Haematopoietic Stem Cell Laboratory, The Francis Crick Institute, London, England, UK
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Current perspectives between metabolic syndrome and cancer. Oncotarget 2018; 7:38959-38972. [PMID: 27029038 PMCID: PMC5122443 DOI: 10.18632/oncotarget.8341] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/20/2016] [Indexed: 12/21/2022] Open
Abstract
Metabolic syndrome is a cluster of risk factors that lead to cardiovascular morbidity and mortality. Recent studies linked metabolic syndrome and several types of cancer. Although metabolic syndrome may not necessarily cause cancer, it is linked to poorer cancer outcomes including increased risk of recurrence and overall mortality. This review tends to discuss the major biological and physiological alterations involved in the increase of incidence and mortality of cancer patients affected by metabolic syndrome. We focus on metabolic syndrome-associated visceral adiposity, hyperinsulinemia, hyperglycemia, insulin-like growth factor (IGF-I) pathway as well as estrogen signaling and inflammation. Several of these factors are also involved in carcinogenesis and cancer progression. A better understanding of the link between metabolic syndrome and cancer may provide new insight about oncogenesis. Moreover, prevention of metabolic syndrome - related alterations may be an important aspect in the management of cancer patients during simultaneous palliative care.
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12
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Takam Kamga P, Bassi G, Cassaro A, Midolo M, Di Trapani M, Gatti A, Carusone R, Resci F, Perbellini O, Gottardi M, Bonifacio M, Nwabo Kamdje AH, Ambrosetti A, Krampera M. Notch signalling drives bone marrow stromal cell-mediated chemoresistance in acute myeloid leukemia. Oncotarget 2017; 7:21713-27. [PMID: 26967055 PMCID: PMC5008317 DOI: 10.18632/oncotarget.7964] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 02/25/2016] [Indexed: 12/12/2022] Open
Abstract
Both preclinical and clinical investigations suggest that Notch signalling is critical for the development of many cancers and for their response to chemotherapy. We previously showed that Notch inhibition abrogates stromal-induced chemoresistance in lymphoid neoplasms. However, the role of Notch in acute myeloid leukemia (AML) and its contribution to the crosstalk between leukemia cells and bone marrow stromal cells remain controversial. Thus, we evaluated the role of the Notch pathway in the proliferation, survival and chemoresistance of AML cells in co-culture with bone marrow mesenchymal stromal cells expanded from both healthy donors (hBM-MSCs) and AML patients (hBM-MSCs*). As compared to hBM-MSCs, hBM-MSCs* showed higher level of Notch1, Jagged1 as well as the main Notch target gene HES1. Notably, hBM-MSCs* induced expression and activation of Notch signalling in AML cells, supporting AML proliferation and being more efficientin inducing AML chemoresistance than hBM-MSCs*. Pharmacological inhibition of Notch using combinations of Notch receptor-blocking antibodies or gamma-secretase inhibitors (GSIs), in presence of chemotherapeutic agents, significant lowered the supportive effect of hBM-MSCs and hBM-MSCs* towards AML cells, by activating apoptotic cascade and reducing protein level of STAT3, AKT and NF-κB.These results suggest that Notch signalling inhibition, by overcoming the stromal-mediated promotion of chemoresistance,may represent a potential therapeutic targetnot only for lymphoid neoplasms, but also for AML.
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Affiliation(s)
- Paul Takam Kamga
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Giulio Bassi
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Adriana Cassaro
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Martina Midolo
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Mariano Di Trapani
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Alessandro Gatti
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Roberta Carusone
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Federica Resci
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Omar Perbellini
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | | | - Massimiliano Bonifacio
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | | | - Achille Ambrosetti
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Mauro Krampera
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
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13
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Deol GSJ, Cuthbert TN, Gatie MI, Spice DM, Hilton LR, Kelly GM. Wnt and Hedgehog Signaling Regulate the Differentiation of F9 Cells into Extraembryonic Endoderm. Front Cell Dev Biol 2017; 5:93. [PMID: 29119099 PMCID: PMC5660979 DOI: 10.3389/fcell.2017.00093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/09/2017] [Indexed: 01/24/2023] Open
Abstract
Mouse F9 cells differentiate into primitive extraembryonic endoderm (PrE) when treated with retinoic acid (RA), and this is accompanied by an up-regulation of Gata6. The role of the GATA6 network in PrE differentiation is known, and we have shown it directly activates Wnt6. Canonical Wnt/β-catenin signaling is required by F9 cells to differentiate to PrE, and this, like most developmental processes, requires input from one or more additional pathways. We found both RA and Gata6 overexpression, can induce the expression of Indian Hedgehog (Ihh) and a subset of its target genes through Gli activation during PrE induction. Chemical activation of the Hh pathway using a Smoothened agonist (SAG) also increased Gli reporter activity, and as expected, when Hh signaling was blocked with a Smoothened antagonist, cyclopamine, this RA-induced reporter activity was reduced. Interestingly, SAG alone failed to induce markers of PrE differentiation, and had no effect on Wnt/β-catenin-dependent TCF-LEF reporter activity. The expected increase in Wnt/β-catenin-dependent TCF-LEF reporter activity and PrE markers induced by RA was, however, blocked by cyclopamine. Finally, inhibiting GSK3 activity with BIO increased both TCF-LEF and Gli reporter activities. Together, we demonstrate the involvement of Hh signaling in the RA-induced differentiation of F9 cells into PrE, and while the activation of the Hh pathway itself is not sufficient, it as well as active Wnt/β-catenin are necessary for F9 cell differentiation.
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Affiliation(s)
- Gurjoth S J Deol
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada
| | - Tina N Cuthbert
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada
| | - Mohamed I Gatie
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada
| | - Danielle M Spice
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada
| | - Lindsay R Hilton
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada
| | - Gregory M Kelly
- Molecular Genetics Unit, Department of Biology, University of Western Ontario, London, ON, Canada.,Child Health Research Institute, London, ON, Canada.,Ontario Institute for Regenerative Medicine, Toronto, ON, Canada
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van Attekum MH, Eldering E, Kater AP. Chronic lymphocytic leukemia cells are active participants in microenvironmental cross-talk. Haematologica 2017; 102:1469-1476. [PMID: 28775118 PMCID: PMC5685246 DOI: 10.3324/haematol.2016.142679] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 06/08/2017] [Indexed: 02/06/2023] Open
Abstract
The importance of the tumor microenvironment in chronic lymphocytic leukemia is
widely accepted. Nevertheless, the understanding of the complex interplay
between the various types of bystander cells and chronic lymphocytic leukemia
cells is incomplete. Numerous studies have indicated that bystander cells
provide chronic lymphocytic leukemia-supportive functions, but it has also
become clear that chronic lymphocytic leukemia cells actively engage in the
formation of a supportive tumor microenvironment through several cross-talk
mechanisms. In this review, we describe how chronic lymphocytic leukemia cells
participate in this interplay by inducing migration and tumor-supportive
differentiation of bystander cells. Furthermore, chronic lymphocytic
leukemia-mediated alterations in the interactions between bystander cells are
discussed. Upon bystander cell interaction, chronic lymphocytic leukemia cells
secrete cytokines and chemokines such as migratory factors [chemokine
(C-C motif) ligand 22 and chemokine (CC motif) ligand 2], which result
in further recruitment of T cells but also of monocyte-derived cells. Within the
tumor microenvironment, chronic lymphocytic leukemia cells induce
differentiation towards a tumor-supportive M2 phenotype of monocyte-derived
cells and suppress phagocytosis, but also induce increased numbers of supportive
regulatory T cells. Like other tumor types, the differentiation of stromal cells
towards supportive cancer-associated fibroblasts is critically dependent on
chronic lymphocytic leukemia-derived factors such as exosomes and
platelet-derived growth factor. Lastly, both chronic lymphocytic leukemia and
bystander cells induce a tolerogenic tumor microenvironment; chronic lymphocytic
leukemia-secreted cytokines, such as interleukin-10, suppress cytotoxic T-cell
functions, while chronic lymphocytic leukemia-associated monocyte-derived cells
contribute to suppression of T-cell function by producing the immune checkpoint
factor, programmed cell death-ligand 1. Deeper understanding of the active
involvement and cross-talk of chronic lymphocytic leukemia cells in shaping the
tumor microenvironment may offer novel clues for designing therapeutic
strategies.
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Affiliation(s)
- Martijn Ha van Attekum
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, the Netherlands.,Department of Hematology, Academic Medical Center, University of Amsterdam, the Netherlands
| | - Eric Eldering
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, the Netherlands.,Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Academic Medical Center, University of Amsterdam, the Netherlands
| | - Arnon P Kater
- Department of Hematology, Academic Medical Center, University of Amsterdam, the Netherlands .,Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Academic Medical Center, University of Amsterdam, the Netherlands
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15
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Franiak-Pietryga I, Maciejewski H, Ziemba B, Appelhans D, Voit B, Robak T, Jander M, Treliński J, Bryszewska M, Borowiec M. Blockage of Wnt/β-Catenin Signaling by Nanoparticles Reduces Survival and Proliferation of CLL Cells In Vitro-Preliminary Study. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700130] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/19/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Ida Franiak-Pietryga
- Department of Clinical and Laboratory Genetics; Medical University of Lodz; Pomorska Str. 251 92-213 Lodz Poland
- Laboratory of Clinical and Transplant Immunology and Genetics; Copernicus Memorial Hospital; Pabianicka Str. 62 93-513 Lodz Poland
- GeneaMed LTD; Kopcinskiego Str. 16/18/904 90-232 Lodz Poland
| | - Henryk Maciejewski
- Department of Computer Engineering; Wroclaw University of Technology; Janiszewskiego Str. 11/17 50-372 Wroclaw Poland
| | - Barbara Ziemba
- Department of Clinical and Laboratory Genetics; Medical University of Lodz; Pomorska Str. 251 92-213 Lodz Poland
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden; Hohe Str. 6 D-01069 Dresden Germany
| | - Brigitte Voit
- Leibniz Institute of Polymer Research Dresden; Hohe Str. 6 D-01069 Dresden Germany
| | - Tadeusz Robak
- Department of Hematology; Medical University of Lodz; Copernicus Memorial Hospital; Pabianicka Str. 62 93-513 Lodz Poland
| | | | - Jacek Treliński
- Department of Hematology; Medical University of Lodz; Copernicus Memorial Hospital; Pabianicka Str. 62 93-513 Lodz Poland
| | - Maria Bryszewska
- Department of General Biophysics; Faculty of Biology and Environmental Protection; University of Lodz; Pomorska Str. 141/143 90-236 Lodz Poland
| | - Maciej Borowiec
- Department of Clinical and Laboratory Genetics; Medical University of Lodz; Pomorska Str. 251 92-213 Lodz Poland
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16
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Horne GA, Copland M. Approaches for targeting self-renewal pathways in cancer stem cells: implications for hematological treatments. Expert Opin Drug Discov 2017; 12:465-474. [DOI: 10.1080/17460441.2017.1303477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Kipps TJ, Stevenson FK, Wu CJ, Croce CM, Packham G, Wierda WG, O'Brien S, Gribben J, Rai K. Chronic lymphocytic leukaemia. Nat Rev Dis Primers 2017; 3:16096. [PMID: 28102226 PMCID: PMC5336551 DOI: 10.1038/nrdp.2016.96] [Citation(s) in RCA: 287] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chronic lymphocytic leukaemia (CLL) is a malignancy of CD5+ B cells that is characterized by the accumulation of small, mature-appearing lymphocytes in the blood, marrow and lymphoid tissues. Signalling via surface immunoglobulin, which constitutes the major part of the B cell receptor, and several genetic alterations play a part in CLL pathogenesis, in addition to interactions between CLL cells and other cell types, such as stromal cells, T cells and nurse-like cells in the lymph nodes. The clinical progression of CLL is heterogeneous and ranges from patients who require treatment soon after diagnosis to others who do not require therapy for many years, if at all. Several factors, including the immunoglobulin heavy-chain variable region gene (IGHV) mutational status, genomic changes, patient age and the presence of comorbidities, should be considered when defining the optimal management strategies, which include chemotherapy, chemoimmunotherapy and/or drugs targeting B cell receptor signalling or inhibitors of apoptosis, such as BCL-2. Research on the biology of CLL has profoundly enhanced our ability to identify patients who are at higher risk for disease progression and our capacity to treat patients with drugs that selectively target distinctive phenotypic or physiological features of CLL. How these and other advances have shaped our current understanding and treatment of patients with CLL is the subject of this Primer.
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Affiliation(s)
- Thomas J Kipps
- Division of Hematology-Oncology, Department of Medicine, Moores Cancer Centre, University of California, San Diego, 3855 Health Sciences Drive M/C 0820, La Jolla, California 92093, USA
| | - Freda K Stevenson
- Southampton Cancer Research UK Centre, Cancer Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Catherine J Wu
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Carlo M Croce
- Department of Molecular Virology, Immunology and Medical Genetics, Ohio State University, Columbus, Ohio, USA
| | - Graham Packham
- Southampton Cancer Research UK Centre, Cancer Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - William G Wierda
- Department of Hematology, MD Anderson Cancer Centre, Houston, Texas, USA
| | - Susan O'Brien
- Division of Hematology, Department of Medicine, University of California, Irvine, California, USA
| | - John Gribben
- Department of Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Kanti Rai
- CLL Research and Treatment Program, Feinstein Institute for Medical Research, Northwell Health, New Hyde Park, New York, USA
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18
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Nwabo Kamdje A, Vecchio L, Takam Kamga P, Seke Etet P, Muller J, Bassi G, Krampera M. Developmental Pathways. INTRODUCTION TO CANCER METASTASIS 2017:337-352. [DOI: 10.1016/b978-0-12-804003-4.00018-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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19
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Nwabo Kamdje AH, Takam Kamga P, Tagne Simo R, Vecchio L, Seke Etet PF, Muller JM, Bassi G, Lukong E, Kumar Goel R, Mbo Amvene J, Krampera M. Developmental pathways associated with cancer metastasis: Notch, Wnt, and Hedgehog. Cancer Biol Med 2017; 14:109-120. [PMID: 28607802 PMCID: PMC5444923 DOI: 10.20892/j.issn.2095-3941.2016.0032] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Master developmental pathways, such as Notch, Wnt, and Hedgehog, are signaling systems that control proliferation, cell death, motility, migration, and stemness. These systems are not only commonly activated in many solid tumors, where they drive or contribute to cancer initiation, but also in primary and metastatic tumor development. The reactivation of developmental pathways in cancer stroma favors the development of cancer stem cells and allows their maintenance, indicating these signaling pathways as particularly attractive targets for efficient anticancer therapies, especially in advanced primary tumors and metastatic cancers. Metastasis is the worst feature of cancer development. This feature results from a cascade of events emerging from the hijacking of epithelial-mesenchymal transition, angiogenesis, migration, and invasion by transforming cells and is associated with poor survival, drug resistance, and tumor relapse. In the present review, we summarize and discuss experimental data suggesting pivotal roles for developmental pathways in cancer development and metastasis, considering the therapeutic potential. Emerging targeted antimetastatic therapies based on Notch, Wnt, and Hedgehog pathways are also discussed.
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Affiliation(s)
| | - Paul Takam Kamga
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Richard Tagne Simo
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Lorella Vecchio
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | | | - Jean Marc Muller
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Giulio Bassi
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Erique Lukong
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Raghuveera Kumar Goel
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Jeremie Mbo Amvene
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
| | - Mauro Krampera
- Department of Biomedical Sciences, University of Ngaoundere, Ngaoundere 454, Cameroon
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20
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Welt RS, Welt JA, Kostyal D, Gangadharan YD, Raymond V, Welt S. Specificity and biologic activities of novel anti-membrane IgM antibodies. Oncotarget 2016; 7:74701-74723. [PMID: 27732950 PMCID: PMC5342696 DOI: 10.18632/oncotarget.12506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 09/24/2016] [Indexed: 12/03/2022] Open
Abstract
The concept that the B-cell Receptor (BCR) initiates a driver pathway in lymphoma-leukemia has been clinically validated. Previously described unique BCR Ig-class-specific sequences (proximal domains (PDs)), are not expressed in serum Ig (sIg). As a consequence of sequence and structural differences in the membrane IgM (mIgM) µ-Constant Domain 4, additional epitopes distinguish mIgM from sIgM. mAbs generated to linear and conformational epitopes, restricted to mIgM and not reacting with sIgM, were generated despite the relative hydrophobicity of the PDm sequence. Anti-PD mAbs (mAb1, mAb2, and mAb3) internalize mIgM. Anti-mIgM mAb4, which recognizes a distinct non-ligand binding site epitope, mediates mIgM internalization, and in low-density cultures, growth inhibition, anti-clonogenic activity, and apoptosis. We show that mAb-mediated mIgM internalization generally does not interrupt BCR-directed cell growth, however, mAb4 binding to a non-ligand binding site in the mIgM PDm-μC4 domain induces both mIgM internalization and anti-tumor effects. BCR micro-clustering in many B-cell leukemia and lymphoma lines is demonstrated by SEM micrographs using these new mAb reagents. mAb4 is a clinical candidate as a mediator of inhibition of the BCR signaling pathway. As these agents do not bind to non-mIgM B-cells, nor cross-react to non-lymphatic tissues, they may spare B-cell/normal tissue destruction as mAb-drug conjugates.
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MESH Headings
- Animals
- Antibodies, Anti-Idiotypic/immunology
- Antibodies, Anti-Idiotypic/pharmacology
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/pharmacology
- Antibody Specificity/immunology
- Cell Line, Tumor
- Enzyme-Linked Immunosorbent Assay
- Epitope Mapping
- Epitopes/chemistry
- Epitopes/immunology
- Epitopes/metabolism
- Humans
- Hybridomas/immunology
- Leukemia, B-Cell/immunology
- Leukemia, B-Cell/metabolism
- Lymphoma, B-Cell/immunology
- Lymphoma, B-Cell/metabolism
- Mice
- Peptides/immunology
- Protein Binding
- Protein Transport
- Receptors, Antigen, B-Cell/antagonists & inhibitors
- Receptors, Antigen, B-Cell/chemistry
- Receptors, Antigen, B-Cell/immunology
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Affiliation(s)
| | | | | | | | - Virginia Raymond
- Welt Bio-Molecular Pharmaceutical, LLC., Armonk, NY, USA
- Biogent, LLC., Armonk, NY, USA
| | - Sydney Welt
- Welt Bio-Molecular Pharmaceutical, LLC., Armonk, NY, USA
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21
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Choi MY, Kashyap MK, Kumar D. The chronic lymphocytic leukemia microenvironment: Beyond the B-cell receptor. Best Pract Res Clin Haematol 2016; 29:40-53. [PMID: 27742071 DOI: 10.1016/j.beha.2016.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 07/03/2016] [Accepted: 08/04/2016] [Indexed: 02/07/2023]
Abstract
Malignant B cells accumulate in the peripheral blood, bone marrow, and lymphoid organs of patients with chronic lymphocytic leukemia (CLL). In the tissue compartments, CLL shape a protective microenvironment by coopting normal elements. The efficacy of drugs that target these interactions further underscores their importance in the pathogenesis of CLL. While the B cell receptor (BCR) pathway clearly plays a central role in the CLL microenvironment, there is also rationale to evaluate agents that inhibit other aspects or modulate the immune cells in the microenvironment. Here we review the main cellular components, soluble factors, and signaling pathways of the CLL microenvironment, and highlight recent clinical advances. As the BCR pathway is reviewed elsewhere, we focus on other aspects of the microenvironment.
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Affiliation(s)
- Michael Y Choi
- Moores Cancer Center, UCSD-Moores Cancer Center, La Jolla, 92093-0820, CA, USA.
| | - Manoj Kumar Kashyap
- Moores Cancer Center, UCSD-Moores Cancer Center, La Jolla, 92093-0820, CA, USA.
| | - Deepak Kumar
- Moores Cancer Center, UCSD-Moores Cancer Center, La Jolla, 92093-0820, CA, USA.
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22
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Yu GJ, Choi IW, Kim GY, Hwang HJ, Kim BW, Kim CM, Kim WJ, Yoo YH, Choi YH. Induction of reactive oxygen species–mediated apoptosis by purified Schisandrae semen essential oil in human leukemia U937 cells through activation of the caspase cascades and nuclear relocation of mitochondrial apoptogenic factors. Nutr Res 2015; 35:910-920. [DOI: 10.1016/j.nutres.2015.06.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/15/2015] [Accepted: 06/30/2015] [Indexed: 10/23/2022]
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23
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Ruvolo PP. Galectin 3 as a guardian of the tumor microenvironment. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1863:427-437. [PMID: 26264495 DOI: 10.1016/j.bbamcr.2015.08.008] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 01/12/2023]
Abstract
Galectin 3 is a member of a family of β-galactoside binding proteins and has emerged as an important regulator of diverse functions critical in cancer biology including apoptosis, metastasis, immune surveillance, molecular trafficking, mRNA splicing, gene expression, and inflammation. Galectin 3's ability to support cancer cell survival by intra-cellular and extra-cellular mechanisms suggests this molecule is an important component of the tumor microenvironment that potentially could be targeted for therapy. Data is emerging that Galectin 3 is elevated in many cancers including solid tumors and the cancers of the blood. Galectin 3 also appears to be a key molecule produced by tumor microenvironment support cells including mesenchymal stromal cells (MSC) to suppress immune surveillance by killing T cells and interfering with NK cell function and by supporting metastasis. Levels of Galectin 3 increase in the MSC of aging mice and perhaps this contributes to the development of cancer in the elderly. Galectin 3 modulates surface protein expression of a diverse set of glycoproteins including CD44 by regulating endocytosis of these proteins. In addition, Galectin 3 binding to receptor kinases such as CD45 and the T cell receptor is critical in the regulation of their function. In this review I will examine the various mechanisms how Galectin 3 supports chemoresistance and metastasis in solid tumors and in leukemia and lymphoma. I will also discuss possible therapeutic strategies to target this Galectin for cancer therapy. This article is part of a Special Issue entitled: Tumor Microenvironment Regulation of Cancer Cell Survival, Metastasis, Inflammation, and Immune Surveillance edited by Peter Ruvolo and Gregg L. Semenza.
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Affiliation(s)
- Peter P Ruvolo
- Department of Leukemia, University of Texas MD Anderson Cancer Center, United States.
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24
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Abstract
Both acute myeloid leukemia and chronic myeloid leukemia are thought to arise from a subpopulation of primitive cells, termed leukemic stem cells that share properties with somatic stem cells. Leukemic stem cells are capable of continued self-renewal, and are resistant to conventional chemotherapy and are considered to be responsible for disease relapse. In recent years, improved understanding of the underlying mechanisms of myeloid leukemia biology has led to the development of novel and targeted therapies. This review focuses on clinically relevant patent applications and their relevance within the known literature in two areas of prevailing therapeutic interest, namely monoclonal antibody therapy and small molecule inhibitors in disease-relevant signaling pathways.
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25
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Khan AA, Harrison CN, McLornan DP. Targeting of the Hedgehog pathway in myeloid malignancies: still a worthy chase? Br J Haematol 2015; 170:323-35. [PMID: 25892100 DOI: 10.1111/bjh.13426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Deregulated Hedgehog (Hh) signalling activity may be associated with a broad range of cancer types and hence has become an attractive target for therapeutic intervention. Although initial haematological interest focused on the therapeutic targeting of this pathway in chronic myeloid leukaemia), small molecule inhibitors targeting the Hh pathway are now being tested in a range of other myeloid disorders, including myelofibrosis, myelodysplasia and acute myeloid leukaemia. In this review we will evaluate the rationale for targeting of the Hh pathway in myeloid diseases and discuss the novel agents that have entered the clinical arena. We will discuss pre-clinical models, emerging clinical trial data, and suggest how these targeted therapies may address current unmet medical needs. Finally, we will explore potential limitations of these therapies due to the emergence of secondary resistance mechanisms and speculate on future developments within this arena.
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Affiliation(s)
- Alesia A Khan
- Department of Haematology, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Claire N Harrison
- Department of Haematology, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Donal P McLornan
- Department of Haematology, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Department of Haematological Medicine, King's College Hospital NHS Foundation Trust, London, UK
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26
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Novo MCT, Osugui L, dos Reis VO, Longo-Maugéri IM, Mariano M, Popi AF. Blockage of Wnt/β-catenin signaling by quercetin reduces survival and proliferation of B-1 cells in vitro. Immunobiology 2015; 220:60-7. [DOI: 10.1016/j.imbio.2014.09.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/26/2014] [Accepted: 09/01/2014] [Indexed: 12/20/2022]
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Heinig K, Gätjen M, Grau M, Stache V, Anagnostopoulos I, Gerlach K, Niesner RA, Cseresnyes Z, Hauser AE, Lenz P, Hehlgans T, Brink R, Westermann J, Dörken B, Lipp M, Lenz G, Rehm A, Höpken UE. Access to follicular dendritic cells is a pivotal step in murine chronic lymphocytic leukemia B-cell activation and proliferation. Cancer Discov 2014; 4:1448-65. [PMID: 25252690 DOI: 10.1158/2159-8290.cd-14-0096] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED In human chronic lymphocytic leukemia (CLL) pathogenesis, B-cell antigen receptor signaling seems important for leukemia B-cell ontogeny, whereas the microenvironment influences B-cell activation, tumor cell lodging, and provision of antigenic stimuli. Using the murine Eμ-Tcl1 CLL model, we demonstrate that CXCR5-controlled access to follicular dendritic cells confers proliferative stimuli to leukemia B cells. Intravital imaging revealed a marginal zone B cell-like leukemia cell trafficking route. Murine and human CLL cells reciprocally stimulated resident mesenchymal stromal cells through lymphotoxin-β-receptor activation, resulting in CXCL13 secretion and stromal compartment remodeling. Inhibition of lymphotoxin/lymphotoxin-β-receptor signaling or of CXCR5 signaling retards leukemia progression. Thus, CXCR5 activity links tumor cell homing, shaping a survival niche, and access to localized proliferation stimuli. SIGNIFICANCE CLL and other indolent lymphoma are not curable and usually relapse after treatment, a process in which the tumor microenvironment plays a pivotal role. We dissect the consecutive steps of CXCR5-dependent tumor cell lodging and LTβR-dependent stroma-leukemia cell interaction; moreover, we provide therapeutic solutions to interfere with this reciprocal tumor-stroma cross-talk.
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Affiliation(s)
- Kristina Heinig
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | - Marcel Gätjen
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | - Michael Grau
- Department of Physics, Philipps-University Marburg, Marburg, Germany
| | - Vanessa Stache
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | | | - Kerstin Gerlach
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | | | - Zoltan Cseresnyes
- Deutsches Rheumaforschungszentrum, DRFZ, Berlin, Germany. Confocal and 2-Photon Microscopy Core Facility, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | - Anja E Hauser
- Deutsches Rheumaforschungszentrum, DRFZ, Berlin, Germany. Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Peter Lenz
- Department of Physics, Philipps-University Marburg, Marburg, Germany
| | - Thomas Hehlgans
- Institute for Immunology, University Regensburg, Regensburg, Germany
| | - Robert Brink
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Jörg Westermann
- Department of Hematology, Oncology and Tumorimmunology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
| | - Bernd Dörken
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany. Department of Hematology, Oncology and Tumorimmunology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
| | - Martin Lipp
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany
| | - Georg Lenz
- Department of Hematology, Oncology and Tumorimmunology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
| | - Armin Rehm
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany. Department of Hematology, Oncology and Tumorimmunology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany.
| | - Uta E Höpken
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, Berlin, Germany.
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Identification of a 20-gene expression-based risk score as a predictor of clinical outcome in chronic lymphocytic leukemia patients. BIOMED RESEARCH INTERNATIONAL 2014; 2014:423174. [PMID: 24883311 PMCID: PMC4026849 DOI: 10.1155/2014/423174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 03/18/2014] [Accepted: 03/20/2014] [Indexed: 12/11/2022]
Abstract
Despite the improvement in treatment options, chronic lymphocytic leukemia (CLL) remains an incurable disease and patients show a heterogeneous clinical course requiring therapy for many of them. In the current work, we have built a 20-gene expression (GE)-based risk score predictive for patients overall survival and improving risk classification using microarray gene expression data. GE-based risk score allowed identifying a high-risk group associated with a significant shorter overall survival (OS) and time to treatment (TTT) (P ≤ .01), comprising 19.6% and 13.6% of the patients in two independent cohorts. GE-based risk score, and NRIP1 and TCF7 gene expression remained independent prognostic factors using multivariate Cox analyses and combination of GE-based risk score together with NRIP1 and TCF7 gene expression enabled the identification of three clinically distinct groups of CLL patients. Therefore, this GE-based risk score represents a powerful tool for risk stratification and outcome prediction of CLL patients and could thus be used to guide clinical and therapeutic decisions prospectively.
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29
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Azizidoost S, Bavarsad MS, Bavarsad MS, Shahrabi S, Jaseb K, Rahim F, Shahjahani M, Saba F, Ghorbani M, Saki N. The role of notch signaling in bone marrow niche. Hematology 2014; 20:93-103. [DOI: 10.1179/1607845414y.0000000167] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Shirin Azizidoost
- Health Research InstituteResearch Center of Thalassemia and Hemoglobinopathy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Mahsa Shanaki Bavarsad
- Health Research InstituteResearch Center of Thalassemia and Hemoglobinopathy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saeid Shahrabi
- Department of Biochemistry and HematologyFaculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Kaveh Jaseb
- Health Research InstituteResearch Center of Thalassemia and Hemoglobinopathy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fakher Rahim
- Health Research InstituteHearing Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Shahjahani
- Department of HematologySchool of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fakhredin Saba
- Department of HematologySchool of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mahdi Ghorbani
- Department of Laboratory ScienceParamedical Faculty, AJA University of Medical Sciences, Tehran, Iran
| | - Najmaldin Saki
- Health Research InstituteResearch Center of Thalassemia and Hemoglobinopathy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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30
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Oppezzo P, Dighiero G. "Role of the B-cell receptor and the microenvironment in chronic lymphocytic leukemia''. Blood Cancer J 2013; 3:e149. [PMID: 24056719 PMCID: PMC3789209 DOI: 10.1038/bcj.2013.45] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 07/29/2013] [Accepted: 07/31/2013] [Indexed: 01/09/2023] Open
Abstract
Despite significant progress in treatment, chronic lymphocytic leukemia (CLL) remains an incurable disease. Advances have been made to understand the molecular pathogenesis underlying CLL progression and treatment resistance. We here review the available evidences concerning the role of the B-cell receptor (BCR) and the tumor microenvironment interactions in CLL pathogenesis. Antigen likely has a key role in the selection of the tumoral clone, the mutational status of immunoglobulin genes is a strong prognostic predictor and BCR signaling has been postulated to have a role for CLL trafficking and interaction with the stromal microenvironment. There is also important evidence, favoring a role for the microenvironment in CLL pathogenesis. Most, if not all, proliferative events occur in the lymph nodes and bone marrow, where leukemic cells receive through microenvironment interactions survival signals aiming to avoid apoptosis and acquire favorable tumoral growing conditions. In addition, the tumoral microenvironment appears to be the site where the acquisition of additional genetic lesions in the clone occur, which should greatly influence clinical outcome. The advent of new tyrosine kinase inhibitors which seem to be able to modulate microenvironment interactions and circumvent the p53 deletion have generated significant promise by raising the possibility that they could provide significant progress in disease treatment.
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Affiliation(s)
- P Oppezzo
- 1] Unit of Recombinant Protein, Institut Pasteur de Montevideo, Montevideo, Uruguay [2] Immunobiology Department, School of Medicine, Universidad de la República, Montevideo, Uruguay
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31
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Zhou XX, Wang X. Role of microRNAs in chronic lymphocytic leukemia (Review). Mol Med Rep 2013; 8:719-25. [PMID: 23900739 DOI: 10.3892/mmr.2013.1599] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 07/19/2013] [Indexed: 11/06/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) is the most common type of leukemia among adults in the western world. It is characterized by a malignant clone of B cells in the bone marrow, blood and secondary lymphoid tissues. microRNAs (miRNAs) are a family of small, non‑coding RNAs that regulate the expression of target messenger RNAs at the post‑transcriptional level. Previous studies have suggested that miRNAs are extensively involved in the proliferation and differentiation of hematopoietic cells. Aberrant expression of certain miRNAs has been observed in CLL. Associations between miRNAs and chromosomal abnormalities suggest that miRNAs may be involved in the pathogenesis of CLL. Moreover, miRNAs may be used as novel biomarkers for the prognosis of CLL. Expression levels of miRNAs are also involved in resistance to chemotherapy drugs. In this article, we review recent developments of miRNAs in the initiation, prognosis and chemoresistance of CLL.
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Affiliation(s)
- Xiang-Xiang Zhou
- Department of Hematology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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32
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Landau DA, Wu CJ. Chronic lymphocytic leukemia: molecular heterogeneity revealed by high-throughput genomics. Genome Med 2013; 5:47. [PMID: 23731665 PMCID: PMC3706960 DOI: 10.1186/gm451] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) has been consistently at the forefront of genetic research owing to its prevalence and the accessibility of sample material. Recently, genome-wide technologies have been intensively applied to CLL genetics, with remarkable progress. Single nucleotide polymorphism arrays have identified recurring chromosomal aberrations, thereby focusing functional studies on discrete genomic lesions and leading to the first implication of somatic microRNA disruption in cancer. Next-generation sequencing (NGS) has further transformed our understanding of CLL by identifying novel recurrently mutated putative drivers, including the unexpected discovery of somatic mutations affecting spliceosome function. NGS has further enabled in-depth examination of the transcriptional and epigenetic changes in CLL that accompany genetic lesions, and has shed light on how different driver events appear at different stages of disease progression and clonally evolve with relapsed disease. In addition to providing important insights into disease biology, these discoveries have significant translational potential. They enhance prognosis by highlighting specific lesions associated with poor clinical outcomes (for example, driver events such as mutations in the splicing factor subunit gene SF3B1) or with increased clonal heterogeneity (for example, the presence of subclonal driver mutations). Here, we review new genomic discoveries in CLL and discuss their possible implications in the era of precision medicine.
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Affiliation(s)
- Dan A Landau
- Cancer Vaccine Center, Dana-Farber Cancer Institute, Boston, MA 02215, USA ; Broad Institute, Cambridge, MA 02142, USA ; Department of Hematology, Yale Cancer Center, New Haven, CT 06510, USA ; Université Paris Diderot, Paris 75013, France
| | - Catherine J Wu
- Cancer Vaccine Center, Dana-Farber Cancer Institute, Boston, MA 02215, USA ; Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA ; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA
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33
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Zhang X, Zhang C, Li Z, Zhong J, Weiner LP, Zhong JF. Investigating evolutionary perspective of carcinogenesis with single-cell transcriptome analysis. CHINESE JOURNAL OF CANCER 2013; 32:636-9. [PMID: 23706768 PMCID: PMC3870846 DOI: 10.5732/cjc.012.10291] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We developed phase-switch microfluidic devices for molecular profiling of a large number of single cells. Whole genome microarrays and RNA-sequencing are commonly used to determine the expression levels of genes in cell lysates (a physical mix of millions of cells) for inferring gene functions. However, cellular heterogeneity becomes an inherent noise in the measurement of gene expression. The unique molecular characteristics of individual cells, as well as the temporal and quantitative information of gene expression in cells, are lost when averaged among all cells in cell lysates. Our single-cell technology overcomes this limitation and enables us to obtain a large number of single-cell transcriptomes from a population of cells. A collection of single-cell molecular profiles allows us to study carcinogenesis from an evolutionary perspective by treating cancer as a diverse population of cells with abnormal molecular characteristics. Because a cancer cell population contains cells at various stages of development toward drug resistance, clustering similar single-cell molecular profiles could reveal how drug-resistant sub-clones evolve during cancer treatment. Here, we discuss how single-cell transcriptome analysis technology could enable the study of carcinogenesis from an evolutionary perspective and the development of drug-resistance in leukemia. The single-cell transcriptome analysis reported here could have a direct and significant impact on current cancer treatments and future personalized cancer therapies.
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Affiliation(s)
- Xi Zhang
- Department of Pathology, University of Southern California, Keck School of Medicine, Los Angeles, CA 90033, USA; 2Z-Genetic Medicine LLC, Temple City, CA 91780, USA.
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34
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Ramsay AD, Rodriguez-Justo M. Chronic lymphocytic leukaemia--the role of the microenvironment pathogenesis and therapy. Br J Haematol 2013; 162:15-24. [PMID: 23617880 DOI: 10.1111/bjh.12344] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL) is one of the more common forms of B cell malignancy. Although the condition has a variable clinical course, the trend is towards eventual relapse and the disease is considered incurable. Whilst the majority of the circulating CD5-positive neoplastic B cells are arrested in the G0 phase of the cell cycle, those in the bone marrow and lymphoid tissues proliferate at a rate of 0·1-1% of the entire clone per day. This proliferation is supported by the tissue microenvironment, which has been shown to induce upregulation of anti-apoptotic proteins and enhance the survival of the neoplastic cells. Microenvironmental factors are also thought to be important in tumour relapse and resistance to therapy. This review outlines the main signalling pathways involved in these tumour cell-stromal interactions, and includes potential therapeutic strategies based on the manipulation of key components within the CLL microenvironment.
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Affiliation(s)
- Alan D Ramsay
- Department of Cellular Pathology, University College Hospital London, London, UK.
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35
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Filip AA. New boys in town: prognostic role of SF3B1, NOTCH1 and other cryptic alterations in chronic lymphocytic leukemia and how it works. Leuk Lymphoma 2013; 54:1876-81. [PMID: 23343182 DOI: 10.3109/10428194.2013.769049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
B-cell chronic lymphocytic leukemia (B-CLL) is one of the most common leukemias of the elderly. To date, although many prognostic factors are known, none are universal or easily accessible thus allowing for the stratification of patients to slow-go and aggressive-course groups. Recent studies have identified new recurrent mutations in CLL cells, including mutation of the gene encoding one of the spliceosome subunits, SF3B1, mutation or rearrangement of NOTCH1, a gene of well-known tumorigenesis association, and disruption of BIRC3, a member of the inhibitors of apoptosis (IAP) family. This article presents the current state-of-the-art findings concerning the prognostic significance of these new alterations, as well as an explanation of the mechanisms underlying their biological impact on CLL lymphocytes.
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Affiliation(s)
- Agata A Filip
- Department of Cancer Genetics, Medical University of Lublin, Poland.
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36
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Djiogue S, Nwabo Kamdje AH, Vecchio L, Kipanyula MJ, Farahna M, Aldebasi Y, Seke Etet PF. Insulin resistance and cancer: the role of insulin and IGFs. Endocr Relat Cancer 2013. [PMID: 23207292 DOI: 10.1530/erc-12-0324] [Citation(s) in RCA: 189] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Insulin, IGF1, and IGF2 are the most studied insulin-like peptides (ILPs). These are evolutionary conserved factors well known as key regulators of energy metabolism and growth, with crucial roles in insulin resistance-related metabolic disorders such as obesity, diseases like type 2 diabetes mellitus, as well as associated immune deregulations. A growing body of evidence suggests that insulin and IGF1 receptors mediate their effects on regulating cell proliferation, differentiation, apoptosis, glucose transport, and energy metabolism by signaling downstream through insulin receptor substrate molecules and thus play a pivotal role in cell fate determination. Despite the emerging evidence from epidemiological studies on the possible relationship between insulin resistance and cancer, our understanding on the cellular and molecular mechanisms that might account for this relationship remains incompletely understood. The involvement of IGFs in carcinogenesis is attributed to their role in linking high energy intake, increased cell proliferation, and suppression of apoptosis to cancer risks, which has been proposed as the key mechanism bridging insulin resistance and cancer. The present review summarizes and discusses evidence highlighting recent advances in our understanding on the role of ILPs as the link between insulin resistance and cancer and between immune deregulation and cancer in obesity, as well as those areas where there remains a paucity of data. It is anticipated that issues discussed in this paper will also recover new therapeutic targets that can assist in diagnostic screening and novel approaches to controlling tumor development.
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Affiliation(s)
- Sefirin Djiogue
- Department of Animal Biology and Physiology, University of Yaoundé 1, PO Box 812, Yaoundé, Cameroon
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37
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Kipanyula MJ, Seke Etet PF, Vecchio L, Farahna M, Nukenine EN, Nwabo Kamdje AH. Signaling pathways bridging microbial-triggered inflammation and cancer. Cell Signal 2012; 25:403-16. [PMID: 23123499 DOI: 10.1016/j.cellsig.2012.10.014] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 10/26/2012] [Indexed: 02/06/2023]
Abstract
Microbial-triggered inflammation protects against pathogens and yet can paradoxically cause considerable secondary damage to host tissues that can result in tissue fibrosis and carcinogenesis, if persistent. In addition to classical pathogens, gut microbiota bacteria, i.e. a group of mutualistic microorganisms permanently inhabiting the gastrointestinal tract and which plays a key role in digestion, immunity, and cancer prevention, can induce inflammation-associated cancer following the alterations of their microenvironment. Emerging experimental evidence indicates that microbiota members like Escherichia coli and several other genotoxic and mutagenic pathogens can cause DNA damage in various cell types. In addition, the inflammatory response induced by chronic infections with pathogens like the microbiota members Helicobacter spp., which have been associated with liver, colorectal, cervical cancers and lymphoma, for instance, can also trigger carcinogenic processes. A microenvironment including active immune cells releasing high amounts of inflammatory signaling molecules can favor the carcinogenic transformation of host cells. Pivotal molecules released during immune response such as the macrophage migration inhibitory factor (MMIF) and the reactive oxygen and nitrogen species' products superoxide and peroxynitrite, can further damage DNA and cause the accumulation of oncogenic mutations, whereas pro-inflammatory cytokines, adhesion molecules, and growth factors may create a microenvironment promoting neoplastic cell survival and proliferation. Recent findings on the implication of inflammatory signaling pathways in microbial-triggered carcinogenesis as well as the possible role of microbiota modulation in cancer prevention are herein summarized and discussed.
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Affiliation(s)
- Maulilio John Kipanyula
- Department of Veterinary Anatomy, Sokoine University of Agriculture, P.O. Box 3016, Chuo Kikuu, Morogoro, Tanzania
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Normal hematopoiesis and hematologic malignancies: role of canonical Wnt signaling pathway and stromal microenvironment. Biochim Biophys Acta Rev Cancer 2012; 1835:1-10. [PMID: 22982245 DOI: 10.1016/j.bbcan.2012.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/22/2012] [Accepted: 08/28/2012] [Indexed: 02/06/2023]
Abstract
Wnts are a family of evolutionary-conserved secreted signaling molecules critically involved in a variety of developmental processes and in cell fate determination. A growing body of evidence suggests that Wnt signaling plays a crucial role in the influence of bone marrow stromal microenvironment on the balance between hematopoietic stem cell self-renewal and differentiation. Emerging clinical and experimental evidence also indicates Wnt signaling involvement in the disruption of the latter balance in hematologic malignancies, where the stromal microenvironment favors the homing of cancer cells to the bone marrow, as well as leukemia stem cell development and chemoresistance. In the present review, we summarize and discuss the role of the canonical Wnt signaling pathway in normal hematopoiesis and hematologic malignancies, with regard to recent findings on the stromal microenvironment involvement in these process and diseases.
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39
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Signaling pathways in chronic myeloid leukemia and leukemic stem cell maintenance: key role of stromal microenvironment. Cell Signal 2012; 24:1883-8. [PMID: 22659137 DOI: 10.1016/j.cellsig.2012.05.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 05/15/2012] [Accepted: 05/24/2012] [Indexed: 12/11/2022]
Abstract
Chronic myeloid leukemia (CML) is caused by the malignant transformation of hematopoietic stem cells in leukemic stem cells. From the introduction of the anti-cancer drug imatinib, the therapy of CML has been positively transformed. However, following treatment most patients display a residual CML disease attributed to the presence of quiescent leukemic stem cells intrinsically resistant to imatinib. Considering that the later cancer cells lose their chemoresistance in vitro, it appears that the stromal microenvironment plays a crucial role in CML-affected cell chemoresistance. In the present review, we summarize and discuss the recent findings on signaling pathways through which stromal cells sustain CML leukemogenesis, as well as leukemic stem cell maintenance and chemoresistance.
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