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Mathews R, Setthavongsack N, Le-Cook A, Kaempf A, Loftis JM, Woltjer RL, Lorentz CU, Revenko A, Hinds MT, Nguyen KP. Role of platelet count in a murine stasis model of deep vein thrombosis. Platelets 2024; 35:2290916. [PMID: 38099327 PMCID: PMC10805383 DOI: 10.1080/09537104.2023.2290916] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023]
Abstract
Platelets are core components of thrombi but their effect on thrombus burden during deep vein thrombosis (DVT) has not been fully characterized. We examined the role of thrombopoietin-altered platelet count on thrombus burden in a murine stasis model of DVT. To modulate platelet count compared to baseline, CD1 mice were pretreated with thrombopoietin antisense oligonucleotide (THPO-ASO, 56% decrease), thrombopoietin mimetic (TPO-mimetic, 36% increase), or saline (within 1%). Thrombi and vein walls were examined on postoperative days (POD) 3 and 7. Thrombus weights on POD 3 were not different between treatment groups (p = .84). The mean thrombus weights on POD 7 were significantly increased in the TPO-mimetic cohort compared to the THPO-ASO (p = .005) and the saline (p = .012) cohorts. Histological grading at POD 3 revealed a significantly increased smooth muscle cell presence in the thrombi and CD31 positive channeling in the vein wall of the TPO-mimetic cohort compared to the saline and THPO-ASO cohorts (p < .05). No differences were observed in histology on POD 7. Thrombopoietin-induced increased platelet count increased thrombus weight on POD 7 indicating platelet count may regulate thrombus burden during early resolution of venous thrombi in this murine stasis model of DVT.
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Affiliation(s)
- Rick Mathews
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, USA
| | - Naly Setthavongsack
- Division of Neuropathology, Department of Pathology, Oregon Health and Science University, Portland, Oregon, USA
| | - Anh Le-Cook
- Research & Development Service, VA Portland Health Care System, Portland, Oregon, USA
| | - Andy Kaempf
- Biostatistics Shared Resource, Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Jennifer M Loftis
- Research & Development Service, VA Portland Health Care System, Portland, Oregon, USA
- Department of Psychiatry, Oregon Health and Science University, Portland, Oregon, USA
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, Oregon, USA
| | - Randall L Woltjer
- Division of Neuropathology, Department of Pathology, Oregon Health and Science University, Portland, Oregon, USA
| | | | | | - Monica T Hinds
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, USA
| | - Khanh P Nguyen
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, USA
- Research & Development Service, VA Portland Health Care System, Portland, Oregon, USA
- Division of Vascular Surgery, Department of Surgery, Oregon Health and Science University, Portland, Oregon, USA
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2
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Duan W, Wu Z, Jiang H, Liao G, Liang Y, Lao X. Preoperative thromboelastography parameters in predicting the tumour stage of oral squamous cell carcinoma. BMC Cancer 2024; 24:1136. [PMID: 39261756 PMCID: PMC11391732 DOI: 10.1186/s12885-024-12868-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 08/27/2024] [Indexed: 09/13/2024] Open
Abstract
BACKGROUND A variety of solid tumours, including oral squamous cell carcinoma (OSCC), can cause coagulation abnormalities, and this phenomenon is known as tumour-associated hypercoagulation. We aimed to explore the preoperative thromboelastography (TEG) parameter profiles of OSCC patients, and to investigate their trends in relation to tumour stage progression, and to evaluate their value for predicting cervical lymph node metastasis. METHODS Data on thromboelastographic parameters and conventional coagulation indices were retrospectively collected, and comparisons were performed among preoperative primary OSCC patients (n = 311), recurrent/metastatic OSCC patients (n = 44) and a control group (n = 71). Among primary OSCC patients, the correlation with tumour stage and the predictive role of cervical lymph node metastasis were analyzed. RESULTS Hypercoagulability occurred in OSCC patients and tended to become more pronounced as the tumour progressed. The whole-time phase of coagulation increased with increasing T stage, while the early phase of coagulation increased with increasing N stage. CONCLUSIONS Preoperative TEG parameters are closely related to tumour stage and progression, suggesting that TEG can be used as an important indicator for predicting tumour stage and as a potential biomarker.
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Affiliation(s)
- Wan Duan
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Zhangxia Wu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Hong Jiang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Guiqing Liao
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yujie Liang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.
| | - Xiaomei Lao
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.
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3
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Roweth HG, Becker IC, Malloy MW, Clarke EM, Munn SA, Kumar PL, Aivasovsky I, Tray K, Schmaier AA, Battinelli EM. Platelet Angiopoietin-1 Protects Against Murine Models of Tumor Metastasis. Arterioscler Thromb Vasc Biol 2024; 44:2024-2037. [PMID: 39051116 PMCID: PMC11335083 DOI: 10.1161/atvbaha.124.321189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND In addition to their fundamental roles in preserving vascular integrity, platelets also contribute to tumor angiogenesis and metastasis. However, despite being a reservoir for angiogenic and metastatic cytokines, platelets also harbor negative regulators of tumor progression. Angpt1 (angiopoietin-1) is a cytokine essential for developmental angiogenesis that also protects against tumor cell metastasis through an undefined mechanism. Although activated platelets release Angpt1 from α-granules into circulation, the contributions of platelet Angpt1 to tumor growth, angiogenesis, and metastasis have not been investigated. METHODS Using cytokine arrays and ELISAs, we first compared platelet Angpt1 levels in breast and melanoma mouse tumor models to tumor-free controls. We then assessed tumor growth and metastasis in mice lacking megakaryocyte and platelet Angpt1 (Angpt1Plt KO). The spontaneous metastasis of mammary-injected tumor cells to the lungs was quantified using RT-PCR (reverse transcription-polymerase chain reaction). The lung colonization of intravenously injected tumor cells and tumor cell extravasation were determined using fluorescent microscopy and flow cytometry. RESULTS Platelet Angpt1 is selectively upregulated in the PyMT (polyoma middle tumor antigen) breast cancer mouse model, and platelets are the principal source of Angpt1 in blood circulation. While primary tumor growth and angiogenesis were unaffected, Angpt1Plt KO mice had both increased spontaneous lung metastasis and tumor cell lung colonization following mammary or intravenous injection, respectively. Although platelet Angpt1 did not affect initial tumor cell entrapment in the lungs, Angpt1Plt KO mice had increased tumor cell retention and extravasation. Serum from Angpt1Plt KO mice increased endothelial permeability and reduced VE (vascular endothelial)-cadherin expression at endothelial junctions compared with serum from control mice (Angpt1WT). CONCLUSIONS Platelets provide an intravascular source of Angpt1 that restrains tumor metastasis by preserving the lung microvasculature to limit tumor cell extravasation.
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MESH Headings
- Animals
- Angiopoietin-1/genetics
- Angiopoietin-1/metabolism
- Angiopoietin-1/blood
- Blood Platelets/metabolism
- Blood Platelets/pathology
- Female
- Lung Neoplasms/secondary
- Lung Neoplasms/pathology
- Lung Neoplasms/genetics
- Lung Neoplasms/blood
- Lung Neoplasms/metabolism
- Lung Neoplasms/prevention & control
- Mice, Knockout
- Neovascularization, Pathologic
- Mice, Inbred C57BL
- Melanoma, Experimental/pathology
- Melanoma, Experimental/metabolism
- Melanoma, Experimental/blood supply
- Melanoma, Experimental/blood
- Melanoma, Experimental/secondary
- Melanoma, Experimental/genetics
- Cell Line, Tumor
- Mice
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/blood
- Tumor Burden
- Disease Models, Animal
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Affiliation(s)
- Harvey G. Roweth
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
| | - Isabelle C. Becker
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, MA (I.C.B.)
| | - Michael W. Malloy
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
| | - Emily M. Clarke
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
| | - Sophie A. Munn
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
| | - Priya L. Kumar
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
| | - Ivan Aivasovsky
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA (I.A., K.T., A.A.S.)
| | - Kobe Tray
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA (I.A., K.T., A.A.S.)
| | - Alec A. Schmaier
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA (I.A., K.T., A.A.S.)
| | - Elisabeth M. Battinelli
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (H.G.R., M.W.M., E.M.C., S.A.M., P.L.K., E.M.B.)
- Harvard Medical School, Boston, MA (H.G.R., I.C.B., P.L.K., I.A., A.A.S., E.M.B.)
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4
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Roweth HG. Platelet Contributions to the (Pre)metastatic Tumor Microenvironment. Semin Thromb Hemost 2024; 50:455-461. [PMID: 37832586 PMCID: PMC11177183 DOI: 10.1055/s-0043-1776005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Alongside their conventional roles in thrombosis and hemostasis, platelets have long been associated with nonhemostatic pathologies, including tumor cell metastasis. Numerous mechanistic studies have since demonstrated that the direct binding of platelets to intravascular tumor cells promotes key hallmarks of metastasis, including survival in circulation and tumor cell arrest at secondary sites. However, platelets also interact with nonmalignant cells that make up the stromal and immune compartments within both primary and metastatic tumors. This review will first provide a brief historical perspective on platelet contributions to metastatic disease before discussing the emerging roles that platelets play in creating microenvironments that likely support successful tumor cell metastasis.
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Affiliation(s)
- Harvey G. Roweth
- Hematology Division, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
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5
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Ghosh LD, Jain A. The prospects of microphysiological systems in modeling platelet pathophysiology in cancer. Platelets 2023; 34:2247489. [PMID: 37610007 PMCID: PMC10578702 DOI: 10.1080/09537104.2023.2247489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/10/2023] [Accepted: 08/02/2023] [Indexed: 08/24/2023]
Abstract
The contribution of platelets is well recognized in thrombosis and hemostasis. However, platelets also promote tumor progression and metastasis through their crosstalk with various cells of the tumor microenvironment (TME). For example, several cancer models continue to show that platelet functions are readily altered by cancer cells upon activation leading to the formation of platelet-tumor aggregates, triggering release of soluble factors from platelet granules and altering platelet turnover. Further, activated platelets protect tumor cells from shear forces in circulation and assault of cytotoxic natural killer (NK) cells. Platelet-secreted factors promote proliferation of malignant cells, metastasis, and chemoresistance. Much of our knowledge of platelet biology in cancer has been achieved with animal models, particularly murine. However, this preclinical understanding of the complex pathophysiology is yet to be fully realized and translated to clinical trials in terms of new approaches to treat cancer via controlling the platelet function. In this review, we summarize the current state of knowledge of platelet physiology obtained through existing in vivo and in vitro cancer models, the complex interactions of platelets with cancer cells in TME and the pathways by which platelets may confer chemoresistance. Since the FDA Modernization Act recently passed by the US government has made animal models optional in drug approvals, we critically examine the existing and futuristic value of employing bioengineered microphysiological systems and organ-chips to understand the mechanistic role of platelets in cancer metastasis and exploring novel therapeutic targets for cancer prevention and treatment.
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Affiliation(s)
- Lopamudra D. Ghosh
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, College Station, Texas, USA
| | - Abhishek Jain
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, College Station, Texas, USA
- Department of Medical Physiology, School of Medicine, Texas A&M Health Science Center, Bryan, Texas, USA
- Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, Texas, USA
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6
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Xu JB, Cao J, Xia J, Zhu Y, He Y, Cao MG, Fang BM, Thiery JP, Zhou W. Breast metastatic tumors in lung can be substituted by lung-derived malignant cells transformed by alternative splicing H19 lncRNA. Breast Cancer Res 2023; 25:59. [PMID: 37254190 DOI: 10.1186/s13058-023-01662-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/23/2023] [Indexed: 06/01/2023] Open
Abstract
Metastasis accounts for most cancer-associated deaths; yet, this complex process remains poorly understood, particularly the relationship between distant metastasis and primary site-derived cells. Here, we modified the classical MMTV-PyMT breast carcinoma model to trace the fate of mammary-derived carcinoma cells. We show that within the lung, when the metastatic breast carcinoma cells are conditionally depleted, transformed lung epithelial cells generate new metastases. Metastatic breast carcinoma cells transmit H19 long noncoding (lnc) RNA to lung epithelial cells through exosomes. SF3B1 bearing mutations at arginine-625 alternatively splices H19 lncRNA in lung epithelial cells, which selectively acts like a molecular sponge to sequester let-7a and induces Myc upregulation. Under the conditional elimination of primary site-derived breast carcinoma cells, lung malignant cells expressing the mutated SF3B1 splice variant dominate the newly created tumors. Our study suggests that these new carcinoma cells originating from within the colonized organ can replace the primary site-derived malignant cells whenever their expansion is abrogated using an inducible diphtheria toxin receptor in our designed system. These findings should call for a better understanding of metastatic tumors with the specific origin during cancer metastasis.
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Affiliation(s)
- Jin Biao Xu
- School of Medicine, Jiaxing University, Jiaxing, 314001, China
| | - Jun Cao
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jin Xia
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ying Zhu
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yi He
- School of Medicine, Ningbo University, Ningbo, 3115211, China
| | - Ming Guo Cao
- School of Medicine, Lishui University, Lishui, 323000, China
| | - Bing Mu Fang
- Lishui City People's Hospital, Lishui, 323000, China
| | - Jean Paul Thiery
- Guangzhou Laboratory, Guangzhou, 510700, China.
- Institute of Molecular and Cell Biology, A-STAR, Singapore, 138673, Singapore.
| | - Wu Zhou
- School of Medicine, Jiaxing University, Jiaxing, 314001, China.
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7
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Abstract
The formation of new blood and lymphatic vessels is essential for both the development of multicellular organisms and (patho)physiological processes like wound repair and tumor growth. In the 1990s, circulating blood platelets were first postulated to regulate tumor angiogenesis by interacting with the endothelium and releasing angiogenic regulators from specialized α granules. Since then, many studies have validated the contributions of platelets to tumor angiogenesis, while uncovering novel roles for platelets in other angiogenic processes like wound resolution and retinal vascular disease. Although the majority of (lymph)angiogenesis occurs during development, platelets appear necessary for lymphatic but not vascular growth, implying their particular importance in pathological cases of adult angiogenesis. Future work is required to determine whether drugs targeting platelet production or function offer a clinically relevant tool to limit detrimental angiogenesis.
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Affiliation(s)
- Harvey G Roweth
- Hematology Division, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.,Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Elisabeth M Battinelli
- Hematology Division, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.,Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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8
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Filippelli A, Del Gaudio C, Simonis V, Ciccone V, Spini A, Donnini S. Scoping Review on Platelets and Tumor Angiogenesis: Do We Need More Evidence or Better Analysis? Int J Mol Sci 2022; 23:13401. [PMID: 36362186 PMCID: PMC9656254 DOI: 10.3390/ijms232113401] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 08/24/2023] Open
Abstract
Platelets are an active component of the tumor microenvironment (TME), involved in the regulation of multiple tumor processes, including angiogenesis. They are generated rich in angiogenic factors in their granules to actively participate in the hemostatic process by megakaryocytes and further enriched in angiogenic factors by all components of the tumor microenvironment to control the angiogenic process because of their preferential relationship with the endothelial component of vessels. In recent decades, the literature has reported a great deal of evidence on the role of platelets in tumor angiogenesis; however, it is unclear whether the number or mean volume of platelets and/or their content and localization in TME may have clinical relevance in the choice and management of therapy for the cancer patient. In this scoping review, we collected and critically reviewed the scientific evidence supporting a close relationship between platelets, cancer, and angiogenesis. The aim of this work was to define the landscape of platelet-activated angiogenesis in cancer progression and analyze what and how much evidence is present in the last 20 years in the literature at both the preclinical and clinical levels, to answer whether platelets could be a useful determinant for analyzing tumor angiogenesis. In conclusion, this scoping review indicates that there is much evidence, both preclinical and clinical, but in the preclinical context, studies demonstrate the direct involvement of platelets in tumor angiogenesis; in the clinical context the evidence is indirect, though strong, and the indication of how and to what extent platelet content contributes to tumor angiogenesis is lacking. So, do we need more evidence or better analysis? More molecular and quali-quantitative data is needed to translate the results obtained in preclinical studies into the clinical setting. This information about platelets, if correlated with tumor type and its biology, including tumor vasculature, type of angiogenesis, and patient characteristics (age, sex, comorbidities, drug treatments for chronic diseases) could be an important pa- rameter for correlating platelet biology to angiogenesis, for personalizing cancer therapy, and for clinical prognosis.
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Affiliation(s)
- Arianna Filippelli
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Cinzia Del Gaudio
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Vittoria Simonis
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Valerio Ciccone
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Andrea Spini
- Department of Medical Science, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
- Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Sandra Donnini
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
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9
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Roweth HG, Malloy MW, Goreczny GJ, Becker IC, Guo Q, Mittendorf EA, Italiano JE, McAllister SS, Battinelli EM. Pro-inflammatory megakaryocyte gene expression in murine models of breast cancer. SCIENCE ADVANCES 2022; 8:eabo5224. [PMID: 36223471 PMCID: PMC9555784 DOI: 10.1126/sciadv.abo5224] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Despite abundant research demonstrating that platelets can promote tumor cell metastasis, whether primary tumors affect platelet-producing megakaryocytes remains understudied. In this study, we used a spontaneous murine model of breast cancer to show that tumor burden reduced megakaryocyte number and size and disrupted polyploidization. Single-cell RNA sequencing demonstrated that megakaryocytes from tumor-bearing mice exhibit a pro-inflammatory phenotype, epitomized by increased Ctsg, Lcn2, S100a8, and S100a9 transcripts. Protein S100A8/A9 and lipocalin-2 levels were also increased in platelets, suggesting that tumor-induced alterations to megakaryocytes are passed on to their platelet progeny, which promoted in vitro tumor cell invasion and tumor cell lung colonization to a greater extent than platelets from wild-type animals. Our study is the first to demonstrate breast cancer-induced alterations in megakaryocytes, leading to qualitative changes in platelet content that may feedback to promote tumor metastasis.
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Affiliation(s)
- Harvey G. Roweth
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Michael W. Malloy
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Gregory J. Goreczny
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Isabelle C. Becker
- Harvard Medical School, Boston, MA 02115, USA
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Qiuchen Guo
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Elizabeth A. Mittendorf
- Division of Breast Surgery, Department of Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Breast Oncology Program, Dana-Farber/Brigham and Women’s Cancer Center, Boston, MA 02215, USA
- Ludwig Centre for Cancer Research at Harvard, Harvard Medical School, Boston, MA 02215, USA
| | - Joseph E. Italiano
- Harvard Medical School, Boston, MA 02115, USA
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Sandra S. McAllister
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Elisabeth M. Battinelli
- Division of Hematology, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
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10
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Londero AP, Bertozzi S, Cedolini C, Neri S, Bulfoni M, Orsaria M, Mariuzzi L, Uzzau A, Risaliti A, Barillari G. Incidence and Risk Factors for Venous Thromboembolism in Female Patients Undergoing Breast Surgery. Cancers (Basel) 2022; 14:cancers14040988. [PMID: 35205736 PMCID: PMC8870485 DOI: 10.3390/cancers14040988] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/12/2022] [Accepted: 02/13/2022] [Indexed: 01/04/2023] Open
Abstract
Albeit it does not have the highest venous thromboembolism (VTE) incidence compared to other neoplasms, breast cancer contributes to many VTE events because it is the most diagnosed tumor in women. We aim to analyze the occurrence and timing of VTE during the follow-up of patients who underwent breast surgery, the possible correlated factors, and the overall survival. This retrospective study included all female patients diagnosed with mammary pathology and surgically treated in our clinic between January 2002 and January 2012. Of 5039 women who underwent breast surgery, 1056 were found to have no evidence of malignancy, whereas 3983 were diagnosed with breast cancer. VTE rate resulted significantly higher in patients with invasive breast cancer than in women with benign breast disease or carcinoma in situ. Invasive cancers other than lobular or ductal were associated with a higher VTE rate. In addition, chronic hypertension, high BMI, cancer type, and evidence of metastasis turned out to be the most significant risk factors for VTE in women who underwent breast surgery. Moreover, VTE occurrence significantly impacted survival in invasive breast cancer patients. Compared to women with benign mammary pathology, VTE prevalence in women with breast cancer is significantly higher. The knowledge about the risk factors of VTE could be helpful as prognostic information, but also to eventually target preventive treatment strategies for VTE, as far as the co-existence of invasive breast cancer and VTE has a significantly negative impact on survival.
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Affiliation(s)
- Ambrogio P. Londero
- Academic Unit of Obstetrics and Gynaecology, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Infant Health, University of Genoa, 16132 Genova, Italy
- Ennergi Research (Non-Profit Organisation), 33050 Lestizza, Italy
- Correspondence: (A.P.L.); (S.B.)
| | - Serena Bertozzi
- Ennergi Research (Non-Profit Organisation), 33050 Lestizza, Italy
- Breast Unit, University Hospital of Udine, 33100 Udine, Italy;
- Correspondence: (A.P.L.); (S.B.)
| | - Carla Cedolini
- Breast Unit, University Hospital of Udine, 33100 Udine, Italy;
| | - Silvia Neri
- Clinic of Surgery, University Hospital of Udine, 33100 Udine, Italy; (S.N.); (A.R.)
| | - Michela Bulfoni
- Institute of Pathologic Anatomy, University Hospital of Udine, 33100 Udine, Italy; (M.B.); (M.O.); (L.M.)
| | - Maria Orsaria
- Institute of Pathologic Anatomy, University Hospital of Udine, 33100 Udine, Italy; (M.B.); (M.O.); (L.M.)
| | - Laura Mariuzzi
- Institute of Pathologic Anatomy, University Hospital of Udine, 33100 Udine, Italy; (M.B.); (M.O.); (L.M.)
- Department of Medical Area (DAME), University of Udine, 33100 Udine, Italy;
| | - Alessandro Uzzau
- Department of Medical Area (DAME), University of Udine, 33100 Udine, Italy;
| | - Andrea Risaliti
- Clinic of Surgery, University Hospital of Udine, 33100 Udine, Italy; (S.N.); (A.R.)
- Department of Medical Area (DAME), University of Udine, 33100 Udine, Italy;
| | - Giovanni Barillari
- Center for Hemorrhagic and Thrombotic Diseases, ASUFC “Santa Maria della Misericordia”, 33100 Udine, Italy;
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11
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Giannakeas V, Kotsopoulos J, Brooks JD, Cheung MC, Rosella L, Lipscombe L, Akbari MR, Austin PC, Narod SA. Platelet Count and Survival after Cancer. Cancers (Basel) 2022; 14:cancers14030549. [PMID: 35158817 PMCID: PMC8833779 DOI: 10.3390/cancers14030549] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Platelets are cellular fragments circulating in the blood that are responsible for clotting. Previous research has shown that cancer patients with an abnormally high platelet count (thrombocytosis) have elevated rates of death from cancer. We aimed to investigate to what extent platelet counts are associated with survival after cancer. We followed a large provincial cohort of cancer patients with a platelet count recorded at the time of their diagnosis. We categorized patients according to platelet count (low, medium, high). Cancer patients in the ‘high’ platelet count category had the highest rate of cancer death, and cancer patients in the ‘low’ platelet count category had the lowest rate of cancer death. Platelet count may be used to predict survival in cancer patients. Abstract Thrombocytosis is associated with cancer progression and death for many cancer types. It is unclear if platelet count is also associated with cancer survival. We conducted a cohort study of 112,231 adults in Ontario with a diagnosis of cancer between January 2007 and December 2016. We included patients who had a complete blood count (CBC) completed in the 30 days prior to their cancer diagnosis. Subjects were assigned to one of three categories according to platelet count: low (≤25th percentile), medium (>25 to <75th percentile), and high (≥75th percentile). Study subjects were followed from the date of their cancer diagnosis for cancer-specific death. Of the 112,231 eligible cancer patients in the cohort study, 40,329 (35.9%) died from their cancer in the follow-up period. Relative to those with a medium platelet count, the rate of cancer-specific death was higher among individuals with a high platelet count (HR 1.52; 95%CI 1.48–1.55) and was lower among individuals with a low platelet count (HR 0.91; 95%CI 0.88–0.93). A high platelet count was associated with poor survival for many cancer types. Platelet count could potentially be used as a risk stratification measure for cancer patients.
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Affiliation(s)
- Vasily Giannakeas
- Women’s College Research Institute, Women’s College Hospital, Toronto, ON M5S 1B2, Canada; (V.G.); (J.K.); (L.L.); (M.R.A.)
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
- ICES, Toronto, ON M4N 3M5, Canada; (M.C.C.); (P.C.A.)
| | - Joanne Kotsopoulos
- Women’s College Research Institute, Women’s College Hospital, Toronto, ON M5S 1B2, Canada; (V.G.); (J.K.); (L.L.); (M.R.A.)
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
| | - Jennifer D. Brooks
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
| | - Matthew C. Cheung
- ICES, Toronto, ON M4N 3M5, Canada; (M.C.C.); (P.C.A.)
- Division of Medical Oncology and Hematology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Laura Rosella
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
| | - Lorraine Lipscombe
- Women’s College Research Institute, Women’s College Hospital, Toronto, ON M5S 1B2, Canada; (V.G.); (J.K.); (L.L.); (M.R.A.)
- ICES, Toronto, ON M4N 3M5, Canada; (M.C.C.); (P.C.A.)
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Endocrinology, Women’s College Hospital, Toronto, ON M5S 1B2, Canada
| | - Mohammad R. Akbari
- Women’s College Research Institute, Women’s College Hospital, Toronto, ON M5S 1B2, Canada; (V.G.); (J.K.); (L.L.); (M.R.A.)
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Peter C. Austin
- ICES, Toronto, ON M4N 3M5, Canada; (M.C.C.); (P.C.A.)
- Institute of Health Policy Management and Evaluation, University of Toronto Ontario Canada, Toronto, ON M5T 3M6, Canada
| | - Steven A. Narod
- Women’s College Research Institute, Women’s College Hospital, Toronto, ON M5S 1B2, Canada; (V.G.); (J.K.); (L.L.); (M.R.A.)
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.D.B.); (L.R.)
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Correspondence: ; Tel.: +1-416-351-3765; Fax: +1-416-351-3767
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12
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Alentado VJ, Moliterno AR, Srour EF, Kacena MA. Clinical applications of thrombopoietin silencing: A possible therapeutic role in COVID-19? Cytokine 2021; 146:155634. [PMID: 34247039 PMCID: PMC8253722 DOI: 10.1016/j.cyto.2021.155634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/30/2022]
Abstract
Thrombopoietin (TPO) is most recognized for its function as the primary regulator of megakaryocyte (MK) expansion and differentiation. MKs, in turn, are best known for their role in platelet production. Research indicates that MKs and platelets play an extensive role in the pathologic thrombosis at sites of high inflammation. TPO, therefore, is a key mediator of thromboinflammation. Silencing of TPO has been shown to decrease platelets levels and rates of pathologic thrombosis in patients with various inflammatory disorders (Barrett et al, 2020; Bunting et al, 1997; Desai et al, 2018; Kaser et al, 2001; Shirai et al, 2019). Given the high rates of thromboinflammmation in the novel coronavirus 2019 (COVID-19), as well as the well-documented aberrant MK activity in affected patients, TPO silencing offers a potential therapeutic modality in the treatment of COVID-19 and other pathologies associated with thromboinflammation. The current review explores the current clinical applications of TPO silencing and offers insight into a potential role in the treatment of COVID-19.
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Affiliation(s)
- Vincent J Alentado
- Department of Neurological Surgery, Indiana University School of Medicine, IN, USA
| | - Alison R Moliterno
- Department of Hematology, Johns Hopkins University School of Medicine, MD, USA
| | - Edward F Srour
- Department of Medicine, Indiana University School of Medicine, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, IN, USA.
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13
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Tao DL, Tassi Yunga S, Williams CD, McCarty OJT. Aspirin and antiplatelet treatments in cancer. Blood 2021; 137:3201-3211. [PMID: 33940597 PMCID: PMC8351882 DOI: 10.1182/blood.2019003977] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
Platelets have been hypothesized to promote certain neoplastic malignancies; however, antiplatelet drugs are still not part of routine pharmacological cancer prevention and treatment protocols. Paracrine interactions between platelets and cancer cells have been implicated in potentiating the dissemination, survival within the circulation, and extravasation of cancer cells at distant sites of metastasis. Signals from platelets have also been suggested to confer epigenetic alterations, including upregulating oncoproteins in circulating tumor cells, and secretion of potent growth factors may play roles in promoting mitogenesis, angiogenesis, and metastatic outgrowth. Thrombocytosis remains a marker of poor prognosis in patients with solid tumors. Experimental data suggest that lowering of platelet count may reduce tumor growth and metastasis. On the basis of the mechanisms by which platelets could contribute to cancer growth and metastasis, it is conceivable that drugs reducing platelet count or platelet activation might attenuate cancer progression and improve outcomes. We will review select pharmacological approaches that inhibit platelets and may affect cancer development and propagation. We begin by presenting an overview of clinical cancer prevention and outcome studies with low-dose aspirin. We then review current nonclinical development of drugs targeted to platelet binding, activation, and count as potential mitigating agents in cancer.
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Affiliation(s)
- Derrick L Tao
- Division of Hematology & Medical Oncology
- Department of Biomedical Engineering, and
| | - Samuel Tassi Yunga
- Department of Biomedical Engineering, and
- Cancer Early Detection & Advanced Research Center, Oregon Health & Science University, Portland, OR; and
| | - Craig D Williams
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR
| | - Owen J T McCarty
- Division of Hematology & Medical Oncology
- Department of Biomedical Engineering, and
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14
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Chen F, Han Y, Kang Y. Bone marrow niches in the regulation of bone metastasis. Br J Cancer 2021; 124:1912-1920. [PMID: 33758331 PMCID: PMC8184962 DOI: 10.1038/s41416-021-01329-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 02/06/2021] [Accepted: 02/16/2021] [Indexed: 12/16/2022] Open
Abstract
The bone marrow has been widely recognised to host a unique microenvironment that facilitates tumour colonisation. Bone metastasis frequently occurs in the late stages of malignant diseases such as breast, prostate and lung cancers. The biology of bone metastasis is determined by tumour-cell-intrinsic traits as well as their interaction with the microenvironment. The bone marrow is a dynamic organ in which various stages of haematopoiesis, osteogenesis, osteolysis and different kinds of immune response are precisely regulated. These different cellular components constitute specialised tissue microenvironments-niches-that play critical roles in controlling tumour cell colonisation, including initial seeding, dormancy and outgrowth. In this review, we will dissect the dynamic nature of the interactions between tumour cells and bone niches. By targeting certain steps of tumour progression and crosstalk with the bone niches, the development of potential therapeutic approaches for the clinical treatment of bone metastasis might be feasible.
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Affiliation(s)
- Fenfang Chen
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Yujiao Han
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA.
- Ludwig Institute for Cancer Research, Princeton University, Princeton, NJ, USA.
- Cancer Metabolism and Growth Program, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
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15
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Abstract
Platelets have long been known to play important roles beyond hemostasis and thrombosis. Now recognized as a bona fide mediator of malignant disease, platelets influence various aspects of cancer progression, most notably tumor cell metastasis. Interestingly, platelets isolated from cancer patients often display distinct RNA and protein profiles, with no clear alterations in hemostatic activity. This phenotypically distinct population, termed tumor-educated platelets, now receive significant attention for their potential use as a readily available liquid biopsy for early cancer detection. Although the mechanisms underpinning platelet education are still being defined, direct uptake and storage of tumor-derived factors, signal-dependent changes in platelet RNA processing, and differential platelet production by tumor-educated megakaryocytes are the most prominent scenarios. This article aims to cover the various modalities of platelet education by tumors, in addition to assessing their diagnostic potential.
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16
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Spivak JL, Moliterno AR. The Thrombopoietin Receptor, MPL, Is a Therapeutic Target of Opportunity in the MPN. Front Oncol 2021; 11:641613. [PMID: 33777803 PMCID: PMC7987816 DOI: 10.3389/fonc.2021.641613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/28/2021] [Indexed: 12/12/2022] Open
Abstract
The myeloproliferative neoplasms, polycythemia vera, essential thrombocytosis and primary myelofibrosis share driver mutations that either activate the thrombopoietin receptor, MPL, or indirectly activate it through mutations in the gene for JAK2, its cognate tyrosine kinase. Paradoxically, although the myeloproliferative neoplasms are classified as neoplasms because they are clonal hematopoietic stem cell disorders, the mutations affecting MPL or JAK2 are gain-of-function, resulting in increased production of normal erythrocytes, myeloid cells and platelets. Constitutive JAK2 activation provides the basis for the shared clinical features of the myeloproliferative neoplasms. A second molecular abnormality, impaired posttranslational processing of MPL is also shared by these disorders but has not received the recognition it deserves. This abnormality is important because MPL is the only hematopoietic growth factor receptor expressed in hematopoietic stem cells; because MPL is a proto-oncogene; because impaired MPL processing results in chronic elevation of plasma thrombopoietin, and since these diseases involve normal hematopoietic stem cells, they have proven resistant to therapies used in other myeloid neoplasms. We hypothesize that MPL offers a selective therapeutic target in the myeloproliferative neoplasms since impaired MPL processing is unique to the involved stem cells, while MPL is required for hematopoietic stem cell survival and quiescent in their bone marrow niches. In this review, we will discuss myeloproliferative neoplasm hematopoietic stem cell pathophysiology in the context of the behavior of MPL and its ligand thrombopoietin and the ability of thrombopoietin gene deletion to abrogate the disease phenotype in vivo in a JAK2 V617 transgenic mouse model of PV.
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Affiliation(s)
- Jerry L Spivak
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine Baltimore, Baltimore, MD, United States
| | - Alison R Moliterno
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine Baltimore, Baltimore, MD, United States
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17
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Exosomal HMGB1 Promoted Cancer Malignancy. Cancers (Basel) 2021; 13:cancers13040877. [PMID: 33669632 PMCID: PMC7921955 DOI: 10.3390/cancers13040877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/12/2021] [Accepted: 02/18/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary In addition to their role in hemostasis and thrombosis, platelets have been implicated in cancer malignancy and thrombocytosis in cancer patients and have been associated with an adverse prognosis. These phenomena indicate that antiplatelet drugs may be useful as an anticancer therapy. Using K562-differentiated megakaryocytes and murine platelets, conditioned medium and exosomes obtained from megakaryocytes and platelets contained high-mobility group box 1 (HMGB1) and promoted cancer cell survival, as well as protected cancer cells from doxorubicin cytotoxicity. Data of tumor-bearing mice established by Lewis lung carcinoma (LLC) cells and C57BL/6 mice revealed that antiplatelet drug dipyridamole and exosome release inhibitor GW4869 mitigated tumor growth and ameliorated concurrent alterations in blood circulation and tumor tissues, as well as platelet infiltration in tumor tissues. Therefore, exosomes and exosomal HMGB1 appear to have roles in platelet-driven cancer malignancy and represent targets of antiplatelet drugs in anticancer treatment. Abstract Reciprocal crosstalk between platelets and malignancies underscores the potential of antiplatelet therapy in cancer treatment. In this study, we found that human chronic myeloid leukemia K562 cell-differentiated megakaryocytes and murine platelets produced bioactive substances and these are released into the extracellular space, partly in their exosomal form. High-mobility group box 1 (HMGB1) is a type of exosomal cargo, and the antiplatelet drugs aspirin and dipyridamole interfered with its incorporation into the exosomes. Those released substances and exosomes, along with exogenous HMGB1, promoted cancer cell survival and protected cells from doxorubicin cytotoxicity. In a tumor-bearing model established using murine Lewis lung carcinoma (LLC) cells and C57BL/6 mice, the tumor suppressive effect of dipyridamole correlated well with decreased circulating white blood cells, soluble P-selectin, TGF-β1 (Transforming Growth Factor-β1), exosomes, and exosomal HMGB1, as well as tumor platelet infiltration. Exosome release inhibitor GW4869 exhibited suppressive effects as well. The suppressive effect of dipyridamole on cancer cell survival was paralleled by a reduction of HMGB1/receptor for advanced glycation end-products axis, and proliferation- and migration-related β-catenin, Yes-associated protein 1, Runt-related transcription factor 2, and TGF- β1/Smad signals. Therefore, exosomes and exosomal HMGB1 appear to have roles in platelet-driven cancer malignancy and represent targets of antiplatelet drugs in anticancer treatment.
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18
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A novel rationale for targeting FXI: Insights from the hemostatic microRNA targetome for emerging anticoagulant strategies. Pharmacol Ther 2021; 218:107676. [DOI: 10.1016/j.pharmthera.2020.107676] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
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19
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Lucotti S, Muschel RJ. Platelets and Metastasis: New Implications of an Old Interplay. Front Oncol 2020; 10:1350. [PMID: 33042789 PMCID: PMC7530207 DOI: 10.3389/fonc.2020.01350] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/26/2020] [Indexed: 12/17/2022] Open
Abstract
During the process of hematogenous metastasis, tumor cells interact with platelets and their precursors megakaryocytes, providing a selection driver for the metastatic phenotype. Cancer cells have evolved a plethora of mechanisms to engage platelet activation and aggregation. Platelet coating of tumor cells in the blood stream promotes the successful completion of multiple steps of the metastatic cascade. Along the same lines, clinical evidence suggests that anti-coagulant therapy might be associated with reduced risk of metastatic disease and better prognosis in cancer patients. Here, we review experimental and clinical literature concerning the contribution of platelets and megakaryocytes to cancer metastasis and provide insights into the clinical relevance of anti-coagulant therapy in cancer treatment.
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Affiliation(s)
- Serena Lucotti
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, United States
| | - Ruth J Muschel
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
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20
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Barrett TJ, Wu BG, Revenko AS, MacLeod AR, Segal LN, Berger JS. Antisense oligonucleotide targeting of thrombopoietin represents a novel platelet depletion method to assess the immunomodulatory role of platelets. J Thromb Haemost 2020; 18:1773-1782. [PMID: 32227586 DOI: 10.1111/jth.14808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Platelets are effector cells of the innate and adaptive immune system; however, understanding their role during inflammation-driven pathologies can be challenging due to several drawbacks associated with current platelet depletion methods. The generation of antisense oligonucleotides (ASOs) directed to thrombopoietin (Tpo) mRNA represents a novel method to reduce circulating platelet count. OBJECTIVE To understand if Tpo-targeted ASO treatment represents a viable strategy to specifically reduce platelet count in mice. METHODS Female and male mice were treated with TPO-targeted ASOs and platelet count and function was assessed, in addition to circulating blood cell counts and hematopoietic stem and progenitor cells. The utility of the platelet-depletion strategy was assessed in a murine model of lower airway dysbiosis. RESULTS AND CONCLUSIONS Herein, we describe how in mice, ASO-mediated silencing of hepatic TPO expression reduces platelet, megakaryocyte, and megakaryocyte progenitor count, without altering platelet activity. TPO ASO-mediated platelet depletion can be achieved acutely and sustained chronically in the absence of adverse bleeding. TPO ASO-mediated platelet depletion allows for the reintroduction of new platelets, an advantage over commonly used antibody-mediated depletion strategies. Using a murine model of lung inflammation, we demonstrate that platelet depletion, induced by either TPO ASO or anti-CD42b treatment, reduces the accumulation of inflammatory immune cells, including monocytes and macrophages, in the lung. Altogether, we characterize a new platelet depletion method that can be sustained chronically and allows for the reintroduction of new platelets highlighting the utility of the TPO ASO method to understand the role of platelets during chronic immune-driven pathologies.
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Affiliation(s)
- Tessa J Barrett
- Marc and Ruti Bell Program in Vascular Biology, Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - Benjamin G Wu
- Division of Pulmonary, Critical Care, and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | | | | | - Leopoldo N Segal
- Division of Pulmonary, Critical Care, and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Jeffrey S Berger
- Marc and Ruti Bell Program in Vascular Biology, Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, NY, USA
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21
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Spivak JL, Merchant A, Williams DM, Rogers O, Zhao W, Duffield A, Resar LS, Moliterno AR, Zhao ZJ. Thrombopoietin is required for full phenotype expression in a JAK2V617F transgenic mouse model of polycythemia vera. PLoS One 2020; 15:e0232801. [PMID: 32479500 PMCID: PMC7263591 DOI: 10.1371/journal.pone.0232801] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/21/2020] [Indexed: 12/30/2022] Open
Abstract
The myeloproliferative neoplasms, polycythemia vera, essential thrombocytosis and primary myelofibrosis are hematopoietic stem cell disorders and share driver mutations that either directly activate the thrombopoietin receptor, MPL, or activate it indirectly through gain-of-function mutations in the gene for JAK2, its cognate tyrosine kinase. Paradoxically, MPL surface expression in hematopoietic stem cells is also reduced in the myeloproliferative neoplasms due to abnormal post-translational glycosylation and premature destruction of JAK2, suggesting that the myeloproliferative neoplasms are disorders of MPL processing since MPL is the only hematopoietic growth factor receptor in hematopoietic stem cells. To examine this possibility, we genetically manipulated MPL expression and maturation in a JAK2V617F transgenic mouse model of polycythemia vera. Elimination of MPL expression completely abrogated the polycythemia vera phenotype in this JAK2V617F transgenic mouse model, which could only be partially restored by expression of one MPL allele. Most importantly, elimination of thrombopoietin gene expression abrogated the polycythemia vera phenotype in this JAK2V617F transgenic mouse model, which could be completely restored by expression of a single thrombopoietin allele. These data indicate that polycythemia vera is in part a thrombopoietin-dependent disorder and that targeting the MPL-thrombopoietin axis could be an effective, nonmyelotoxic therapeutic strategy in this disorder.
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Affiliation(s)
- Jerry L. Spivak
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| | - Akil Merchant
- Samuel Oschin Comprehensive Cancer Institute, Blood and Marrow Transplant Program, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Donna M. Williams
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Ophelia Rogers
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Wanke Zhao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Amy Duffield
- Department of Pathology, Hematologic Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Linda S. Resar
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Alison R. Moliterno
- Hematology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Zhizhuang J. Zhao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
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22
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Zou Z, Fan X, Liu Y, Sun Y, Zhang X, Sun G, Li X, Xu S. Endogenous thrombopoietin promotes non-small-cell lung carcinoma cell proliferation and migration by regulating EGFR signalling. J Cell Mol Med 2020; 24:6644-6657. [PMID: 32337844 PMCID: PMC7299695 DOI: 10.1111/jcmm.15314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 12/12/2022] Open
Abstract
Thrombopoietin (TPO) is a haematopoietic cytokine mainly produced by the liver and kidneys, which stimulates the production and maturation of megakaryocytes. In the past decade, numerous studies have investigated the effects of TPO outside the haematopoietic system; however, the role of TPO in the progression of solid cancer, particularly lung cancer, has not been well studied. Exogenous TPO does not affect non-small-cell lung cancer (NSCLC) cells as these cells show no or extremely low TPO receptor expression; therefore, in this study, we focused on endogenous TPO produced by NSCLC cells. Immunohistochemical analysis of 150 paired NSCLC and adjacent normal tissues indicated that TPO was highly expressed in NSCLC tissues and correlated with clinicopathological parameters including differentiation, P-TNM stage, lymph node metastasis and tumour size. Suppressing endogenous TPO by small interfering RNA inhibited the proliferation and migration of NSCLC cells. Moreover, TPO interacted with the EGFR protein and delayed ligand-induced EGFR degradation, thus enhancing EGFR signalling. Notably, overexpressing TPO in EGF-stimulated NSCLC cells facilitated cell proliferation and migration, whereas no obvious changes were observed without EGF stimulation. Our results suggest that endogenous TPO promotes tumorigenicity of NSCLC via regulating EGFR signalling and thus could be a therapeutic target for treating NSCLC.
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Affiliation(s)
- Zifang Zou
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Xiaoxi Fan
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Yang Liu
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Yanbin Sun
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Xin Zhang
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Guanghao Sun
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Xuehao Li
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Shun Xu
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
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