1
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Ding R, Sang S, Yi J, Xie H, Wang F, Dai A. G6PD is a prognostic biomarker correlated with immune infiltrates in lung adenocarcinoma and pulmonary arterial hypertension. Aging (Albany NY) 2024; 16:466-492. [PMID: 38194707 PMCID: PMC10817399 DOI: 10.18632/aging.205381] [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: 08/06/2023] [Accepted: 11/21/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Lung adenocarcinoma (LUAD) with Pulmonary arterial hypertension (PAH) shows a poor prognosis. Detecting related genes is imperative for prognosis prediction. METHODS The gene expression profiles of LUAD and PAH were acquired from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) database, respectively. The co-expression modules associated with LUAD and PAH were evaluated using the Weighted Gene Co-Expression Network Analysis (WGCNA). The relationship between key gene expression with immune-cell infiltration and the tumor immune microenvironment (TIME) was evaluated. We confirmed the mRNA and protein levels in vivo and vitro. G6PD knockdown was used to conduct the colony formation assay, transwell invasion assay, and scratch wound assay of A549 cells. EDU staining and CCK8 assay were performed on G6PD knockdown HPASMCs. We identified therapeutic drug molecules and performed molecular docking between the key gene and small drug molecules. RESULTS Three major modules and 52 overlapped genes were recognized in LUAD and PAH. We identified the key gene G6PD, which was significantly upregulated in LUAD and PAH. In addition, we discovered a significant difference in infiltration for most immune cells between high- and low-G6PD expression groups. The mRNA and protein expressions of G6PD were significantly upregulated in LUAD and PAH. G6PD knockdown decreased proliferation, cloning, and migration of A549 cells and cell proliferation in HPASMCs. We screened five potential drug molecules against G6PD and targeted glutaraldehyde by molecular docking. CONCLUSIONS This study reveals that G6PD is an immune-related biomarker and a possible therapeutic target for LUAD and PAH patients.
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Affiliation(s)
- Rongzhen Ding
- Department of Respiratory Diseases, Medical School, Hunan University of Chinese Medicine, Changsha, China
- Hunan Provincial Key Laboratory of Vascular Biology and Translational Medicine, Changsha, China
- Department of Respiratory Medicine, First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, China
| | - Shuliu Sang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian Yi
- Department of Respiratory Diseases, Medical School, Hunan University of Chinese Medicine, Changsha, China
- Hunan Provincial Key Laboratory of Vascular Biology and Translational Medicine, Changsha, China
- Hunan Academy of Chinese Medicine, Changsha, China
| | - Haiping Xie
- Department of Urinary Surgery, First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, China
| | - Feiying Wang
- Department of Respiratory Diseases, Medical School, Hunan University of Chinese Medicine, Changsha, China
- Hunan Provincial Key Laboratory of Vascular Biology and Translational Medicine, Changsha, China
| | - Aiguo Dai
- Department of Respiratory Diseases, Medical School, Hunan University of Chinese Medicine, Changsha, China
- Hunan Provincial Key Laboratory of Vascular Biology and Translational Medicine, Changsha, China
- Department of Respiratory Medicine, First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, China
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2
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Mescherina NS, Stepchenko MA, Leontieva TS, Khardikova EM, Mikhailenko TS. Approaches to early diagnosis and prevention of cardiovascular toxicity induced by targeted drugs and immune checkpoint inhibitors in oncohematology: a literature review. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2023. [DOI: 10.15829/1728-8800-2023-3337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
The development of targeted drugs and immune checkpoint inhibitors (ICIs), as well as their implementation into clinical practice has allowed increasing the overall and event-free survival of oncohematological patients. Currently, assessment of the efficacy of a therapeutic strategy in each specific case includes the evaluation of an acceptable tolerability profile. The subject of discussion includes cardiovascular complications induced by target drugs and ICIs. The review mainly presents the issues of cardiovascular toxicity (CVT) in certain groups of oncohematological patients (with chronic lymphocytic leukemia, chronic myeloid leukemia, multiple myeloma). The spectrum of cardiovascular adverse effects associated with targeted and ICI therapy in oncohematological practice is quite wide — coronary artery disease, peripheral arterial disease, myocarditis, heart failure, arrhythmias, hypertension. The high importance of the problem of using targeted and immunosuppressive therapy dictates the need to predict adverse effects. The diagnosis of heart failure (one of CVT manifestations) is based on determining the decreased left ventricular ejection fraction during echocardiography, less often — during cardiac magnetic resonance imaging; global longitudinal myocardial strain is a significant parameter of preclinical heart failure, which is determined using the speckle tracking technique. To determine vascular toxicity, a special attention is paid to the vascular wall structure and microcirculation parameters — capillary density at rest, percentage of capillary recovery and perfused capillaries, stiffness index for large blood vessels, reflection index for small arteries, laboratory markers of inflammation and endothelial dysfunction (C-reactive protein, fibrinogen, homocysteine, endothelin 1, vascular endothelial growth factor). CVT prevention presumes the determination of the risk group, correction of risk factors, and administration of protective therapy to very high and high-risk patients. One of the promising directions for preventing vascular toxicity is the use of sodium-glucose linked transporter-2 inhibitors.
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3
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Otani N, Tomoe T, Kawabe A, Sugiyama T, Horie Y, Sugimura H, Yasu T, Nakamoto T. Recent Advances in the Treatment of Pulmonary Arterial Hypertension. Pharmaceuticals (Basel) 2022; 15:1277. [PMID: 36297387 PMCID: PMC9609229 DOI: 10.3390/ph15101277] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 09/29/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a disease in which stenosis or obstruction of the pulmonary arteries (PAs) causes an increase in PA pressure, leading to right-sided heart failure and death. Basic research has revealed a decrease in the levels of endogenous vasodilators, such as prostacyclin, and an increase in the levels of endogenous vasoconstrictors, such as endothelin, in patients with PAH, leading to the development of therapeutic agents. Currently, therapeutic agents for PAH target three pathways that are selective for PAs: the prostacyclin, endothelin, and nitric oxide pathways. These treatments improve the prognosis of PAH patients. In this review, we introduce new drug therapies and provide an overview of the current therapeutic agents.
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Affiliation(s)
| | | | | | | | | | | | | | - Takaaki Nakamoto
- Department of Cardiology, Dokkyo Medical University Nikkyo Medical Center, 632 Takatoku, Nikko 321-2593, Japan
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4
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Ramos-Casals M, Flores-Chávez A, Brito-Zerón P, Lambotte O, Mariette X. Immune-related adverse events of cancer immunotherapies targeting kinases. Pharmacol Ther 2022; 237:108250. [DOI: 10.1016/j.pharmthera.2022.108250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 11/25/2022]
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5
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Bogaard HJ, Aman J. Tyrosine Kinases and Endothelial Homeostasis in Pulmonary Arterial Hypertension (PAH): Too Hot to Handle? Am J Respir Cell Mol Biol 2022; 67:147-149. [PMID: 35580152 PMCID: PMC9348559 DOI: 10.1165/rcmb.2022-0122ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Harm Jan Bogaard
- VU University Medical Center, Pulmonary Medicine, Amsterdam, Netherlands;
| | - Jurjan Aman
- Amsterdam UMC - Locatie VUMC, 1209, Pulmonary Diseases, Amsterdam, Netherlands
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6
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Wang R, Pan J, Han J, Gong M, Liu L, Zhang Y, Liu Y, Wang D, Tang Q, Wu N, Wang L, Yan J, Li H, Yuan Y. Melatonin Attenuates Dasatinib-Aggravated Hypoxic Pulmonary Hypertension via Inhibiting Pulmonary Vascular Remodeling. Front Cardiovasc Med 2022; 9:790921. [PMID: 35402542 PMCID: PMC8987569 DOI: 10.3389/fcvm.2022.790921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Dasatinib treatment is approved as first-line therapy for chronic myeloid leukemia. However, pulmonary hypertension (PH) is a highly morbid and often fatal side-effect of dasatinib, characterized by progressive pulmonary vascular remodeling. Melatonin exerts strong antioxidant capacity against the progression of cardiovascular system diseases. The present work aimed to investigate the effect of melatonin on dasatinib-aggravated hypoxic PH and explore its possible mechanisms. Dasatinib-aggravated rat experimental model of hypoxic PH was established by utilizing dasatinib under hypoxia. The results indicated that melatonin could attenuate dasatinib-aggravated pulmonary pressure and vascular remodeling in rats under hypoxia. Additionally, melatonin attenuated the activity of XO, the content of MDA, the expression of NOX4, and elevated the activity of CAT, GPx, and SOD, the expression of SOD2, which were caused by dasatinib under hypoxia. In vitro, dasatinib led to decreased LDH activity and production of NO in human pulmonary microvascular endothelial cells (HPMECs), moreover increased generation of ROS, and expression of NOX4 both in HPMECs and primary rat pulmonary arterial smooth muscle cells (PASMCs) under hypoxia. Dasatinib up-regulated the expression of cleaved caspase-3 and the ratio of apoptotic cells in HPMECs, and also elevated the percentage of S phase and the expression of Cyclin D1 in primary PASMCs under hypoxia. Melatonin ameliorated dasatinib-aggravated oxidative damage and apoptosis in HPMECs, meanwhile reduced oxidative stress level, proliferation, and repressed the stability of HIF1-α protein in PASMCs under hypoxia. In conclusion, melatonin significantly attenuates dasatinib-aggravated hypoxic PH by inhibiting pulmonary vascular remodeling in rats. The possible mechanisms involved protecting endothelial cells and inhibiting abnormal proliferation of smooth muscle cells. Our findings may suggest that melatonin has potential clinical value as a therapeutic approach to alleviate dasatinib-aggravated hypoxic PH.
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Affiliation(s)
- Rui Wang
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
- Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Second Hospital of Dalian Medical University, Dalian, China
| | - Jinjin Pan
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Jinzhen Han
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Miaomiao Gong
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Liang Liu
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Yunlong Zhang
- The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ying Liu
- The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Dingyou Wang
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Qing Tang
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Na Wu
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Lin Wang
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Jinsong Yan
- Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Second Hospital of Dalian Medical University, Dalian, China
- Jinsong Yan,
| | - Hua Li
- College of Pharmacy, Dalian Medical University, Dalian, China
- Hua Li,
| | - Yuhui Yuan
- The Second Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
- *Correspondence: Yuhui Yuan,
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7
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Effective collaboration between hematologists and cardiologists facilitated successful control of reversible dasatinib-related pulmonary arterial hypertension and treatment-free remission of chronic myeloid leukemia: a case report. Int Cancer Conf J 2022; 11:142-146. [PMID: 35402127 PMCID: PMC8938585 DOI: 10.1007/s13691-022-00537-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 02/09/2022] [Indexed: 10/19/2022] Open
Abstract
The BCR-ABL1 tyrosine kinase inhibitor dasatinib is effective in chronic myeloid leukemia (CML) treatment. The major known adverse effects of dasatinib include pleural effusion and pulmonary arterial hypertension (PAH); however, the underlying mechanisms remain unclear. This case report describes a two-step dasatinib dose reduction decided by multi-disciplinary collaboration between cardiologists and hematologists for the management of PAH that led to treatment-free remission (TFR), suggesting an important improvement in the field. Herein, a 43-year-old woman with CML was administered 100 mg of dasatinib daily as a first-line therapy from May 2014. There were no evident abnormalities on her electrocardiogram and transthoracic echocardiography (TTE) charts before she started taking dasatinib. She developed leg edema in June 2015, and the TTE showed a high transtricuspid pressure gradient value. Based on these findings, we diagnosed PAH and right-sided heart failure due to dasatinib. However, since it was confirmed that the molecular response (MR4.5) (International Scale: BCR-ABL1IS ≤ 0.0032%) was sustained, the hematologist decided to reduce the dasatinib dose to 70 mg after thorough deliberations with the cardiologists. After the dose reduction, the PAH improved immediately; however, it was observed again in 2017, which improved with a second dose reduction to 50 mg. Additionally, cardiovascular drug therapy was initiated. The PAH was exacerbated again in 2018 with sustained MR4.5. Hence, we decided to discontinue dasatinib as the MR4.5 had been sustained over 4 years. After the discontinuation of dasatinib, PAH improved again, and near MR4.0 (BCR-ABL1IS ≤ 0.01%) level has been sustained for several years now. Thereafter, no apparent deterioration in PAH was observed. We present a case of reversible dasatinib-induced PAH. Successful management of recurrent PAH was possible with several dose reductions, and TFR was achieved. This was partly due to effective collaboration between the hematologists and cardiologists. If needed, dose reduction as a treatment strategy may be considered before discontinuing dasatinib.
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8
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Nekoukar Z, Moghimi M, Salehifar E. A narrative review on adverse effects of dasatinib with a focus on pharmacotherapy of dasatinib-induced pulmonary toxicities. Blood Res 2021; 56:229-242. [PMID: 34776414 PMCID: PMC8721448 DOI: 10.5045/br.2021.2021117] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/15/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic myeloid leukemia (CML), a myeloproliferative disorder caused by the over activity of BCR-ABL1 (breakpoint cluster region-Abelson), has been successfully treated by Tyrosine kinase inhibitors (TKIs). While imatinib is known as the first-line treatment of CML, in some cases other TKIs including dasatinib, nilotinib, bosutinib, and ponatinib may be preferred. Dasatinib, a second-generation TKI, inhibits multiple family kinases including BCR-ABL, SRC family kinases, receptor kinases, and TEC family kinases. It is effective against most imatinib-resistant cases except T315I mutation. Despite the superiority of dasatinib in its hematologic and cytogenetic responses in CML compared to imatinib, its potentially harmful pulmonary complications including pleural effusion (PE) and pulmonary arterial hypertension (PAH) may limit its use. Appropriate management of these serious adverse reactions is critical in both improving the quality of life and the outcome of the patient. In this narrative review, we will scrutinize the pulmonary complications of dasatinib and focus on the management of these toxicities.
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Affiliation(s)
- Zahra Nekoukar
- Department of Clinical Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Minoo Moghimi
- Department of Clinical Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ebrahim Salehifar
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Department of Clinical Pharmacy, Mazandaran University of Medial Scienses, Sari, Iran
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9
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Zheng Z, Chen R, Zhang N, Zhuang C, Lu J, Zhong Y, Liu H, Hong C. Pulmonary Hypertension: A Predictor of Lung Cancer Prognosis? Am J Respir Crit Care Med 2021; 204:1112-1113. [PMID: 34473936 PMCID: PMC8663015 DOI: 10.1164/rccm.202105-1256le] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Zhenzhen Zheng
- The Second Affiliated Hospital of Guangdong Medical University Zhanjiang, Guangdong, China
| | - Riken Chen
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Nuofu Zhang
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Chunying Zhuang
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Jianmin Lu
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Yue Zhong
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Haimin Liu
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
| | - Cheng Hong
- National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China.,State Key Laboratory of Respiratory Disease Guangzhou, Guangdong, China.,The First Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China.,Guangzhou Institute of Respiratory Disease Guangzhou, Guangdong, China.,National Clinical Research Center for Respiratory Disease Guangzhou, Guangdong, China
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10
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Wang R, Loscalzo J. Network module-based drug repositioning for pulmonary arterial hypertension. CPT Pharmacometrics Syst Pharmacol 2021; 10:994-1005. [PMID: 34132494 PMCID: PMC8452304 DOI: 10.1002/psp4.12670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/12/2021] [Accepted: 05/10/2021] [Indexed: 01/05/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive disorder characterized by pulmonary vascular remodeling leading to increased pulmonary vascular resistance and pulmonary arterial pressure. PAH is a highly morbid cardiopulmonary disease adversely affecting lifespan and quality of life. Despite increased awareness and advances of medical therapies in recent decades, long-term prognosis and survival remain poor for patients with PAH. Novel therapies that can target the underlying pathobiology of PAH and reverse pulmonary vascular remodeling are clearly needed. In this study, we develop a network module-based framework to examine potential drug repositioning for PAH. The rationale for this approach is that in order to have therapeutic effects, the targets of potential drugs must be significantly proximate to the disease module of interest in the human protein-protein interactome. Based on 15 existing drugs for treating PAH, our framework integrates drug-drug interactions, drug-drug chemical similarity, drug targets, and PAH disease proteins into the human interactome, and prioritizes candidate drugs for PAH. We identified 53 drugs that could potentially be repurposed for PAH. Many of these candidates have strong literature support. Compared to black-box-like machine learning models, network module-based drug repositioning can provide mechanistic insights into how repositioned drugs can target the underlying pathobiological mechanisms of PAH.
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Affiliation(s)
- Rui‐Sheng Wang
- Department of Medicine, Cardiovascular DivisionBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Joseph Loscalzo
- Department of Medicine, Cardiovascular DivisionBrigham and Women’s HospitalHarvard Medical SchoolBostonMassachusettsUSA
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11
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Abstract
Rationale: Pulmonary hypertension (PH) has been described in patients treated with leflunomide. Objectives: To assess the association between leflunomide and PH. Methods: We identified incident cases of PH in patients treated with leflunomide from the French PH Registry and through the pharmacoVIGIlAnce in Pulmonary ArTerial Hypertension (VIGIAPATH) program between September 1999 to December 2019. PH etiology, clinical, functional, radiologic, and hemodynamic characteristics were reviewed at baseline and follow-up. A pharmacovigilance disproportionality analysis using the World Health Organization's global database was conducted. We then investigated the effect of leflunomide on human pulmonary endothelial cells. Data are expressed as median (min-max). Results: Twenty-eight patients treated with leflunomide before PH diagnosis was identified. A total of 21 (75%) had another risk factor for PH and 2 had two risk factors. The median time between leflunomide initiation and PH diagnosis was 32 months (1-120). Right heart catheterization confirmed precapillary PH with a cardiac index of 2.37 L⋅min-1 ⋅m-2 (1.19-3.1) and elevated pulmonary vascular resistance at 9.63 Wood Units (3.6-22.1) without nitric oxide reversibility. Five patients (17.9%) had no other risk factor for PH besides exposure to leflunomide. No significant hemodynamic improvement was observed after leflunomide withdrawal. The pharmacovigilance disproportionality analysis using the World Health Organization's database revealed a significant overrepresentation of leflunomide among reported pulmonary arterial hypertension-adverse drug reactions. In vitro studies showed the dose-dependent toxicity of leflunomide on human pulmonary endothelial cells. Conclusions: PH associated with leflunomide is rare and usually associated with other risk factors. The pharmacovigilance analysis suggests an association reinforced by experimental data.
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12
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Tufano A, Coppola A, Galderisi M. The Growing Impact of Cardiovascular Oncology: Epidemiology and Pathophysiology. Semin Thromb Hemost 2021; 47:899-906. [PMID: 34255338 DOI: 10.1055/s-0041-1729885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Progress in the treatment of cancer has significantly improved survival of oncologic patients in recent decades. However, anticancer therapies, particularly some new, more potent and targeted agents, are potentially cardiotoxic. As a consequence, cardiovascular complications, including heart failure, arterial hypertension, coronary artery disease, venous thromboembolism, peripheral vascular disease, arrhythmias, pericardial disease, and pulmonary hypertension, as related to cancer itself or to anticancer treatments, are increasingly observed and may adversely affect prognosis in oncologic patients. Cardiovascular oncology is an emerging field in cardiology and internal medicine, which is rapidly growing, dealing with the prevention, the early detection, and the management of cardiovascular disease, in all stages of anticancer therapy and during the survivorship period, now crucial for reducing cardiovascular morbidity and mortality in cancer patients. In this narrative review, the existing literature regarding the epidemiology of cardiovascular oncology, the mechanisms of cardiovascular complications in cancer, and the pathophysiology of cardiotoxicity related to chemotherapeutic agents, targeted therapies, immunotherapies, and radiotherapy will be analyzed and summarized.
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Affiliation(s)
- Antonella Tufano
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Antonio Coppola
- Hub Center for Inherited Bleeding Disorders, University Hospital, Parma, Italy
| | - Maurizio Galderisi
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
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13
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Le Ribeuz H, Montani D, Antigny F. The Experimental TASK-1 Potassium Channel Inhibitor A293 Can Be Employed for Rhythm Control of Persistent Atrial Fibrillation in a Translational Large Animal Model. Front Physiol 2021; 12:668267. [PMID: 33912077 PMCID: PMC8072364 DOI: 10.3389/fphys.2021.668267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/15/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hélène Le Ribeuz
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999 ≪ Hypertension Pulmonaire: Physiopathologie et Innovation Thérapeutique ≫, Hôpital Marie Lannelongue, Le Plessis-Robinson, France.,Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - David Montani
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999 ≪ Hypertension Pulmonaire: Physiopathologie et Innovation Thérapeutique ≫, Hôpital Marie Lannelongue, Le Plessis-Robinson, France.,Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Fabrice Antigny
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999 ≪ Hypertension Pulmonaire: Physiopathologie et Innovation Thérapeutique ≫, Hôpital Marie Lannelongue, Le Plessis-Robinson, France.,Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
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14
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mTOR Signaling in Pulmonary Vascular Disease: Pathogenic Role and Therapeutic Target. Int J Mol Sci 2021; 22:ijms22042144. [PMID: 33670032 PMCID: PMC7926633 DOI: 10.3390/ijms22042144] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 12/16/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive and fatal disease without a cure. The exact pathogenic mechanisms of PAH are complex and poorly understood, yet a number of abnormally expressed genes and regulatory pathways contribute to sustained vasoconstriction and vascular remodeling of the distal pulmonary arteries. Mammalian target of rapamycin (mTOR) is one of the major signaling pathways implicated in regulating cell proliferation, migration, differentiation, and protein synthesis. Here we will describe the canonical mTOR pathway, structural and functional differences between mTOR complexes 1 and 2, as well as the crosstalk with other important signaling cascades in the development of PAH. The pathogenic role of mTOR in pulmonary vascular remodeling and sustained vasoconstriction due to its contribution to proliferation, migration, phenotypic transition, and gene regulation in pulmonary artery smooth muscle and endothelial cells will be discussed. Despite the progress in our elucidation of the etiology and pathogenesis of PAH over the two last decades, there is a lack of effective therapeutic agents to treat PAH patients representing a significant unmet clinical need. In this review, we will explore the possibility and therapeutic potential to use inhibitors of mTOR signaling cascade to treat PAH.
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15
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Sasaki K, Jabbour EJ, Ravandi F, Konopleva M, Borthakur G, Wierda WG, Daver N, Takahashi K, Naqvi K, DiNardo C, Montalban‐Bravo G, Kanagal‐Shamanna R, Issa G, Jain P, Skinner J, Rios MB, Pierce S, Soltysiak KA, Sato J, Garcia‐Manero G, Cortes JE. The LEukemia Artificial Intelligence Program (LEAP) in chronic myeloid leukemia in chronic phase: A model to improve patient outcomes. Am J Hematol 2021; 96:241-250. [PMID: 33180322 DOI: 10.1002/ajh.26047] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 12/19/2022]
Abstract
Extreme gradient boosting methods outperform conventional machine-learning models. Here, we have developed the LEukemia Artificial intelligence Program (LEAP) with the extreme gradient boosting decision tree method for the optimal treatment recommendation of tyrosine kinase inhibitors (TKIs) in patients with chronic myeloid leukemia in chronic phase (CML-CP). A cohort of CML-CP patients was randomly divided into training/validation (N = 504) and test cohorts (N = 126). The training/validation cohort was used for 3-fold cross validation to develop the LEAP CML-CP model using 101 variables at diagnosis. The test cohort was then applied to the LEAP CML-CP model and an optimum TKI treatment was suggested for each patient. The area under the curve in the test cohort was 0.81899.Backward multivariate analysis identified age at diagnosis, the degree of comorbidities, and TKI recommended therapy by the LEAP CML-CP model as independent prognostic factors for overall survival. The bootstrapping method internally validated the association of the LEAP CML-CP recommendation with overall survival as an independent prognostic for overall survival. Selecting treatment according to the LEAP CML-CP personalized recommendations, in this model, is associated with better survival probability compared to treatment with a LEAP CML-CP non-recommended therapy. This approach may pave a way of new era of personalized treatment recommendations for patients with cancer.
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Affiliation(s)
- Koji Sasaki
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
- Department of Hematology, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
| | - Elias J. Jabbour
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Farhad Ravandi
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Marina Konopleva
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Gautam Borthakur
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - William G. Wierda
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Naval Daver
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Koichi Takahashi
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Kiran Naqvi
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Courtney DiNardo
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | | | - Rashmi Kanagal‐Shamanna
- Department of Hematopathology The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Ghayas Issa
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Preetesh Jain
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Jeffrey Skinner
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Mary B. Rios
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Sherry Pierce
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Kelly A. Soltysiak
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Junya Sato
- Faculty of Medicine The University of Osaka Osaka Japan
| | | | - Jorge E. Cortes
- Department of Leukemia The University of Texas MD Anderson Cancer Center Houston Texas USA
- Georgia Cancer Center Augusta Georgia USA
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16
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Varga A, Tilea I, Petra DN, Tilinca MC, Gliga ML, Demian S. Cardiovascular Events throughout the Disease Course in Chronic Myeloid Leukaemia Patients Treated with Tyrosine Kinase Inhibitors-A Single-Centre Retrospective Study. J Clin Med 2020; 9:E3269. [PMID: 33053860 PMCID: PMC7600382 DOI: 10.3390/jcm9103269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/03/2020] [Accepted: 10/09/2020] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Cardiovascular risk factors, pre-existing comorbidities, molecular factors, and the direct effects of second- and third-generation BCR-ABL1 tyrosine kinase inhibitors on the vascular endothelium contribute to the progression of cardiovascular (CV) events, especially atherothrombotic conditions. The study objective was to evaluate comorbidities, the cardiovascular risk profile, and events throughout the chronic myeloid leukaemia disease course. METHODS Retrospective data from adults who experienced haematology treatment at a single centre were continuously updated and followed throughout the disease course. A total of 43 subjects conforming with the inclusion and exclusion criteria of the study protocol were finally recruited. The median disease course was 77.0 ± 17.5 months. Statistical analyses were performed. RESULTS More than three CV risk factors were identified in 41.9% of cases. Almost half of the cases had relevant comorbidities (Charlson Comorbidity Index (CCI) ≥ 4), and no statistically significant comorbidities were found when comparing the tyrosine kinase inhibitor (TKI) treatment subgroups (p = 0.53). The patients at high and very high CV risk, according to Systematic Coronary Risk Evaluation (SCORE) risk classification, had 75.0% CV events (12/22 patients), p = 0.45. Throughout the disease course, 19 cardiovascular events were reported in 37.2% patients (13 males/3 females, p < 0.03). CONCLUSION To the best of our knowledge, this is the first study exploring cardiovascular risk factors in Romanian chronic myeloid leukaemia patients. This study reinforces the need for close long-term follow-up that should be performed by a multidisciplinary team. The target should be not only the disease and specific drug-related toxicities but, also, the identification of cardiovascular and metabolic risk factors before the commencement of and throughout TKI therapy.
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Affiliation(s)
- Andreea Varga
- Department ME2, Faculty of Medicine in English, “G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania; (A.V.); (M.-C.T.)
- Department of Cardiology II, Emergency Clinical County Hospital, 540042 Targu Mures, Romania;
| | - Ioan Tilea
- Department of Cardiology II, Emergency Clinical County Hospital, 540042 Targu Mures, Romania;
- Department M4, Clinical Sciences, Faculty of Medicine, ”G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania;
| | - Dorina Nastasia Petra
- Department M4, Clinical Sciences, Faculty of Medicine, ”G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania;
- Department of Internal Medicine II, Emergency Clinical County Hospital, 540042 Targu Mures, Romania
| | - Mariana-Cornelia Tilinca
- Department ME2, Faculty of Medicine in English, “G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania; (A.V.); (M.-C.T.)
- Department of Diabetology, Emergency Clinical County Hospital, 540136 Targu Mures, Romania
| | - Mirela Liana Gliga
- Department M4, Clinical Sciences, Faculty of Medicine, ”G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania;
- Department of Nephrology, Clinical County Hospital, 540072 Targu Mures, Romania
| | - Smaranda Demian
- Department M3, Clinical Sciences Internal Medicine, Faculty of Medicine ”G. E. Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania;
- Department of Hematology, Emergency Clinical County Hospital, 540136 Targu Mures, Romania
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17
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Yang X, Wang L, Lin L, Liu X. Elevated Pulmonary Artery Systolic Pressure is Associated with Poor Survival of Patients with Non-Small Cell Lung Cancer. Cancer Manag Res 2020; 12:6363-6371. [PMID: 32821155 PMCID: PMC7419633 DOI: 10.2147/cmar.s260857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/09/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Pulmonary hypertension (PH) is an important comorbidity of lung cancer, PH in lung cancer patients is gradually gaining interest because of its apparent high prevalence, but the impact of PH on the outcomes of lung cancer remains uncertain and had rarely been discussed. We aimed to evaluate the prevalence, determinants and prognosis value of elevated pulmonary artery systolic pressure (PASP) in non-small cell lung cancer patients. Patients and Methods In this retrospective study, subjects with a new and pathological confirmed diagnosis of lung cancer were enrolled. All patients underwent transthoracic echocardiography before received treatment. Pulmonary artery systolic pressure was measured by transthoracic echocardiography. Lung cancer subtypes were categorized by WHO classification of lung tumors. Hazard ratios (HR) were estimated by using Cox regression models. Results Among 612 non-small cell lung cancer (NSCLC) patients, 19.8% coexisted with PH. After adjustment for age, symptom, coagulation disorders, lymph node metastasis, distant metastasis, histological type, clinical stage, PASP ≥35mmHg was significantly associated with the decreased overall survival (OS) of NSCLC (P= 0.028). Moreover, PASP ≥45mmHg was an independent predictor for perioperative death. Independent factors of comorbid elevated PASP were age, the presence of intrapulmonary metastasis and coagulation disorders. Conclusion These findings suggest that PASP is an independent prognostic risk factor for NSCLC patients. Main determinants of elevated PASP are age, the presence of intrapulmonary metastasis and coagulation disorders.
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Affiliation(s)
- Xue Yang
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, People's Republic of China
| | - Lina Wang
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, People's Republic of China
| | - Lianjun Lin
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, People's Republic of China
| | - Xinmin Liu
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, People's Republic of China
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18
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Dasatinib-Induced Pulmonary Arterial Hypertension. Am J Ther 2020; 28:e695-e696. [PMID: 32769395 DOI: 10.1097/mjt.0000000000001213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Abstract
Cancer therapies can lead to a broad spectrum of cardiovascular complications. Among these, cardiotoxicities remain of prime concern, but vascular toxicities have emerged as the second most common group. The range of cancer therapies with a vascular toxicity profile and the clinical spectrum of vascular toxic effects are quite broad. Historically, venous thromboembolism has received the greatest attention but, over the past decade, the arterial toxic effects, which can present as acute vasospasm, acute thrombosis and accelerated atherosclerosis, of cancer therapies have gained greater recognition. This Review focuses on these types of cancer therapy-related arterial toxicity, including their mechanisms, and provides an update on venous thromboembolism and pulmonary hypertension associated with cancer therapies. Recommendations for the screening, treatment and prevention of vascular toxic effects of cancer therapies are outlined in the context of available evidence and society guidelines and consensus statements. The shift towards greater awareness of the vascular toxic effects of cancer therapies has further unveiled the urgent needs in this area in terms of defining best clinical practices. Well-designed and well-conducted clinical studies and registries are needed to more precisely define the incidence rates, risk factors, primary and secondary modes of prevention, and best treatment modalities for vascular toxicities related to cancer therapies. These efforts should be complemented by preclinical studies to outline the pathophysiological concepts that can be translated into the clinic and to identify drugs with vascular toxicity potential even before their widespread clinical use.
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Affiliation(s)
- Joerg Herrmann
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA.
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20
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Weatherald J, Bondeelle L, Chaumais MC, Guignabert C, Savale L, Jaïs X, Sitbon O, Rousselot P, Humbert M, Bergeron A, Montani D. Pulmonary complications of Bcr-Abl tyrosine kinase inhibitors. Eur Respir J 2020; 56:13993003.00279-2020. [DOI: 10.1183/13993003.00279-2020] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/02/2020] [Indexed: 12/17/2022]
Abstract
Tyrosine kinase inhibitors (TKIs) targeting the Bcr-Abl oncoprotein revolutionised the treatment of chronic myelogenous leukaemia. Following the success of imatinib, second- and third-generation molecules were developed. Different profiles of kinase inhibition and off-target effects vary between TKIs, which leads to a broad spectrum of potential toxicities.Pulmonary complications are most frequently observed with dasatinib but all other Bcr-Abl TKIs have been implicated. Pleural effusions are the most frequent pulmonary complication of TKIs, usually associated with dasatinib and bosutinib. Pulmonary arterial hypertension is an uncommon but serious complication of dasatinib, which is often reversible upon discontinuation. Bosutinib and ponatinib have also been associated with pulmonary arterial hypertension, while imatinib has not. Rarely, interstitial lung disease has been associated with TKIs, predominantly with imatinib.Mechanistically, dasatinib affects maintenance of normal pulmonary endothelial integrity by generating mitochondrial oxidative stress, inducing endothelial apoptosis and impairing vascular permeability in a dose-dependent manner. The mechanisms underlying other TKI-related complications are largely unknown. Awareness and early diagnosis of the pulmonary complications of Bcr-Abl TKIs is essential given their seriousness, potential reversibility, and impact on future treatment options for the underlying chronic myelogenous leukaemia.
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21
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Reinero C, Visser LC, Kellihan HB, Masseau I, Rozanski E, Clercx C, Williams K, Abbott J, Borgarelli M, Scansen BA. ACVIM consensus statement guidelines for the diagnosis, classification, treatment, and monitoring of pulmonary hypertension in dogs. J Vet Intern Med 2020; 34:549-573. [PMID: 32065428 PMCID: PMC7097566 DOI: 10.1111/jvim.15725] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/30/2020] [Indexed: 01/01/2023] Open
Abstract
Pulmonary hypertension (PH), defined by increased pressure within the pulmonary vasculature, is a hemodynamic and pathophysiologic state present in a wide variety of cardiovascular, respiratory, and systemic diseases. The purpose of this consensus statement is to provide a multidisciplinary approach to guidelines for the diagnosis, classification, treatment, and monitoring of PH in dogs. Comprehensive evaluation including consideration of signalment, clinical signs, echocardiographic parameters, and results of other diagnostic tests supports the diagnosis of PH and allows identification of associated underlying conditions. Dogs with PH can be classified into the following 6 groups: group 1, pulmonary arterial hypertension; group 2, left heart disease; group 3, respiratory disease/hypoxia; group 4, pulmonary emboli/pulmonary thrombi/pulmonary thromboemboli; group 5, parasitic disease (Dirofilaria and Angiostrongylus); and group 6, disorders that are multifactorial or with unclear mechanisms. The approach to treatment of PH focuses on strategies to decrease the risk of progression, complications, or both, recommendations to target underlying diseases or factors contributing to PH, and PH‐specific treatments. Dogs with PH should be monitored for improvement, static condition, or progression, and any identified underlying disorder should be addressed and monitored simultaneously.
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Affiliation(s)
- Carol Reinero
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri
| | - Lance C Visser
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, California
| | - Heidi B Kellihan
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin
| | - Isabelle Masseau
- Department of Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Quebec, Canada
| | - Elizabeth Rozanski
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, Medford, Massachusetts
| | - Cécile Clercx
- Department of Clinical Sciences of Companion Animals and Equine, University of Liège, Liège, Belgium
| | - Kurt Williams
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Jonathan Abbott
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee
| | - Michele Borgarelli
- Department of Small Animal Clinical Sciences, Virginia Maryland College of Veterinary Medicine, Blacksburg, Virginia
| | - Brian A Scansen
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
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22
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Weiss A, Boehm M, Egemnazarov B, Grimminger F, Savai Pullamsetti S, Kwapiszewska G, Schermuly RT. Kinases as potential targets for treatment of pulmonary hypertension and right ventricular dysfunction. Br J Pharmacol 2020; 178:31-53. [PMID: 31709514 DOI: 10.1111/bph.14919] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
Abstract
Pulmonary hypertension (PH) is a progressive pulmonary vasculopathy that causes chronic right ventricular pressure overload and often leads to right ventricular failure. Various kinase inhibitors have been studied in the setting of PH and either improved or worsened the disease, highlighting the importance of understanding the specific role of the respective kinases in a spatiotemporal cellular context. In this review, we will summarize the knowledge on the role of kinases in PH and focus on druggable targets for which certain criteria are met: (a) deregulation of the kinase in PH; (b) small-molecule inhibitors are available (e.g. from the oncology field); (c) preclinical studies have shown their efficacy in PH models; and (d) when available, therapeutic exploitation in human PH has been initiated. Along this line, clinical considerations such as personalized medicine approaches to predict therapy response and adverse side events such as cardiotoxicity together with their clinical management are discussed. LINKED ARTICLES: This article is part of a themed issue on Risk factors, comorbidities, and comedications in cardioprotection. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.1/issuetoc.
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Affiliation(s)
- Astrid Weiss
- Department of Internal Medicine, Justus-Liebig University Giessen, Giessen, Germany.,German Center for Lung Research (DZL), Giessen, Germany
| | - Mario Boehm
- Department of Internal Medicine, Justus-Liebig University Giessen, Giessen, Germany.,German Center for Lung Research (DZL), Giessen, Germany
| | | | - Friedrich Grimminger
- Department of Internal Medicine, Justus-Liebig University Giessen, Giessen, Germany.,German Center for Lung Research (DZL), Giessen, Germany
| | | | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria.,Otto Loewi Center, Physiology, Medical University of Graz, Graz, Austria
| | - Ralph T Schermuly
- Department of Internal Medicine, Justus-Liebig University Giessen, Giessen, Germany
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23
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Manouchehri A, Kanu E, Mauro MJ, Aday AW, Lindner JR, Moslehi J. Tyrosine Kinase Inhibitors in Leukemia and Cardiovascular Events: From Mechanism to Patient Care. Arterioscler Thromb Vasc Biol 2020; 40:301-308. [PMID: 31875699 PMCID: PMC6993877 DOI: 10.1161/atvbaha.119.313353] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Targeted oncology therapies have revolutionized cancer treatment over the last decade and have resulted in improved prognosis for many patients. This advance has emanated from elucidation of pathways responsible for tumorigenesis followed by targeting of these pathways by specific molecules. Cardiovascular care has become an increasingly critical aspect of patient care in part because patients live longer, but also due to potential associated toxicities from these therapies. Because of the targeted nature of cancer therapies, cardiac and vascular side effects may additionally provide insights into the basic biology of vascular disease. We herein provide the example of tyrosine kinase inhibitors utilized in chronic myelogenous leukemia to illustrate this medical transformation. We describe the vascular considerations for the clinical care of chronic myelogenous leukemia patients as well as the emerging literature on mechanisms of toxicities of the individual tyrosine kinase inhibitors. We additionally postulate that basic insights into toxicities of novel cancer therapies may serve as a new platform for investigation in vascular biology and a new translational research opportunity in vascular medicine.
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Affiliation(s)
- Ali Manouchehri
- From the Cardio-Oncology Program, Department of Medicine (A.M., E.K., J.M.), Vanderbilt University Medical Center, Nashville, TN.,Division of Clinical Pharmacology, Department of Medicine (A.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Elishama Kanu
- From the Cardio-Oncology Program, Department of Medicine (A.M., E.K., J.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Michael J Mauro
- Myeloproliferative Neoplasms Program, Leukemia Service, Department of Hematology Oncology, Memorial Sloan Kettering Cancer Center, New York (M.J.M.)
| | - Aaron W Aday
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Department of Medicine (A.W.A.), Vanderbilt University Medical Center, Nashville, TN
| | - Jonathan R Lindner
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland (J.R.L.)
| | - Javid Moslehi
- From the Cardio-Oncology Program, Department of Medicine (A.M., E.K., J.M.), Vanderbilt University Medical Center, Nashville, TN
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25
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Orlikow E, Weatherald J, Hirani N. Dasatinib-Induced Pulmonary Arterial Hypertension. Can J Cardiol 2019; 35:1604.e1-1604.e3. [DOI: 10.1016/j.cjca.2019.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/26/2019] [Accepted: 08/01/2019] [Indexed: 11/30/2022] Open
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26
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Abstract
The introduction of targeted agents into modern cancer therapy pursued the goal of molecularly more specific, and thereby more effective and safer, therapies. Paradoxically, however, several toxicities were brought to greater attention, among these not only cardiac but also vascular toxicities. The latter reach far beyond venous thromboembolism and include a broad spectrum of presentations based on the vascular territories and pathomechanisms involved, including abnormal vascular reactivity, acute thrombosis, or accelerated atherosclerosis. This article provides an overview of the most common presentations and their management strategies.
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Affiliation(s)
- Joerg Herrmann
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55902, USA.
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27
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Aschner Y, Downey GP. The Importance of Tyrosine Phosphorylation Control of Cellular Signaling Pathways in Respiratory Disease: pY and pY Not. Am J Respir Cell Mol Biol 2019; 59:535-547. [PMID: 29812954 DOI: 10.1165/rcmb.2018-0049tr] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Reversible phosphorylation of proteins on tyrosine residues is an essential signaling mechanism by which diverse cellular processes are closely regulated. The tight temporal and spatial control of the tyrosine phosphorylation status of proteins by protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs) is critical to cellular homeostasis as well as to adaptations to the external environment. Via regulation of cellular signaling cascades involving other protein kinases and phosphatases, receptors, adaptor proteins, and transcription factors, PTKs and PTPs closely control diverse cellular processes such as proliferation, differentiation, migration, inflammation, and maintenance of cellular barrier function. Given these key regulatory roles, it is not surprising that dysfunction of PTKs and PTPs is important in the pathogenesis of human disease, including many pulmonary diseases. The roles of various PTKs and PTPs in acute lung injury and repair, pulmonary fibrosis, pulmonary vascular disease, and inflammatory airway disease are discussed in this review. It is important to note that although there is overlap among many of these proteins in various disease states, the mechanisms by which they influence the pathogenesis of these conditions differ, suggesting wide-ranging roles for these enzymes and their potential as therapeutic targets.
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Affiliation(s)
- Yael Aschner
- 1 Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, and
| | - Gregory P Downey
- 1 Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, and.,2 Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado; and.,3 Department of Medicine.,4 Department of Pediatrics, and.,5 Department of Biomedical Research, National Jewish Health, Denver, Colorado
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28
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Rieg AD, Bünting NA, Cranen C, Suleiman S, Spillner JW, Schnöring H, Schröder T, von Stillfried S, Braunschweig T, Manley PW, Schälte G, Rossaint R, Uhlig S, Martin C. Tyrosine kinase inhibitors relax pulmonary arteries in human and murine precision-cut lung slices. Respir Res 2019; 20:111. [PMID: 31170998 PMCID: PMC6555704 DOI: 10.1186/s12931-019-1074-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 05/16/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Tyrosine kinase inhibitors (TKIs) inhibit the platelet derived growth factor receptor (PDGFR) and gain increasing significance in the therapy of proliferative diseases, e.g. pulmonary arterial hypertension (PAH). Moreover, TKIs relax pulmonary vessels of rats and guinea pigs. So far, it is unknown, whether TKIs exert relaxation in human and murine pulmonary vessels. Thus, we studied the effects of TKIs and the PDGFR-agonist PDGF-BB in precision-cut lung slices (PCLS) from both species. METHODS The vascular effects of imatinib (mice/human) or nilotinib (human) were studied in Endothelin-1 (ET-1) pre-constricted pulmonary arteries (PAs) or veins (PVs) by videomicroscopy. Baseline initial vessel area (IVA) was defined as 100%. With regard to TKI-induced relaxation, K+-channel activation was studied in human PAs (PCLS) and imatinib/nilotinib-related changes of cAMP and cGMP were analysed in human PAs/PVs (ELISA). Finally, the contractile potency of PDGF-BB was explored in PCLS (mice/human). RESULTS Murine PCLS: Imatinib (10 μM) relaxed ET-1-pre-constricted PAs to 167% of IVA. Vice versa, 100 nM PDGF-BB contracted PAs to 60% of IVA and pre-treatment with imatinib or amlodipine prevented PDGF-BB-induced contraction. Murine PVs reacted only slightly to imatinib or PDGF-BB. Human PCLS: 100 μM imatinib or nilotinib relaxed ET-1-pre-constricted PAs to 166% or 145% of IVA, respectively, due to the activation of KATP-, BKCa2+- or Kv-channels. In PVs, imatinib exerted only slight relaxation and nilotinib had no effect. Imatinib and nilotinib increased cAMP in human PAs, but not in PVs. In addition, PDGF-BB contracted human PAs/PVs, which was prevented by imatinib. CONCLUSIONS TKIs relax pre-constricted PAs/PVs from both, mice and humans. In human PAs, the activation of K+-channels and the generation of cAMP are relevant for TKI-induced relaxation. Vice versa, PDGF-BB contracts PAs/PVs (human/mice) due to PDGFR. In murine PAs, PDGF-BB-induced contraction depends on intracellular calcium. So, PDGFR regulates the tone of PAs/PVs. Since TKIs combine relaxant and antiproliferative effects, they may be promising in therapy of PAH.
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Affiliation(s)
- Annette D Rieg
- Department of Anaesthesiology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany.
| | - Nina A Bünting
- Institute of Pharmacology and Toxicology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Christian Cranen
- Institute of Pharmacology and Toxicology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Said Suleiman
- Institute of Pharmacology and Toxicology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Jan W Spillner
- Department of Cardiac and Thoracic Surgery, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Heike Schnöring
- Department of Cardiac and Thoracic Surgery, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Thomas Schröder
- Department of Surgery, Luisenhospital Aachen, Aachen, Germany
| | | | - Till Braunschweig
- Institute of Pathology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | | | - Gereon Schälte
- Department of Anaesthesiology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Rolf Rossaint
- Department of Anaesthesiology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Stefan Uhlig
- Institute of Pharmacology and Toxicology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
| | - Christian Martin
- Institute of Pharmacology and Toxicology, Medical Faculty Aachen, RWTH-Aachen, Aachen, Germany
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Cornet L, Khouri C, Roustit M, Guignabert C, Chaumais MC, Humbert M, Revol B, Despas F, Montani D, Cracowski JL. Pulmonary arterial hypertension associated with protein kinase inhibitors: a pharmacovigilance-pharmacodynamic study. Eur Respir J 2019; 53:13993003.02472-2018. [PMID: 30846469 DOI: 10.1183/13993003.02472-2018] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 02/17/2019] [Indexed: 01/14/2023]
Abstract
The pathophysiology of pulmonary arterial hypertension (PAH) induced by protein kinase inhibitors (PKIs) remains unclear. To gain knowledge into this rare and severe pathology we performed a study combining a pharmacovigilance approach and the pharmacodynamic properties of PKIs.A disproportionality analysis on the World Health Organization pharmacovigilance database VigiBase using the reporting odds ratio (ROR) and 95% confidence interval was first performed. Then, we identified the most relevant cellular targets of interest through a systematic literature review and correlated the pharmacovigilance signals with the affinity for the different PKIs. We further performed a hierarchical cluster analysis to assess patterns of binding affinity.A positive disproportionality signal was found for dasatinib, bosutinib, ponatinib, ruxolitinib and nilotinib. Five non-receptor protein kinases significantly correlate with disproportionality signals: c-Src (r=0.79, p=0.00027), c-Yes (r=0.82, p=0.00015), Lck (r=0.81, p=0.00046) and Lyn (r=0.80, p=0.00036), all belonging to the Src protein kinase family, and TEC (r=0.85, p=0.00006). Kinases of the bone morphogenetic protein signalling pathway also seem to play a role in the pathophysiology of PKI-induced PAH. Interestingly, the dasatinib affinity profile seems to be different from that of other PKIs in the cluster analysis.The study highlights the potential role of the Src protein kinase family and TEC in PAH induced by PKIs. This approach combining pharmacovigilance and pharmacodynamics data allowed us to generate some hypotheses about the pathophysiology of the disease; however, the results have to be confirmed by further studies.
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Affiliation(s)
- Lucie Cornet
- Pharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France.,These two authors contributed equally to this work
| | - Charles Khouri
- Pharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France .,Clinical Pharmacology Dept, INSERM CIC1406, Grenoble Alpes University Hospital, Grenoble, France.,UMR 1042-HP2, INSERM, Université Grenoble Alpes, Grenoble, France.,These two authors contributed equally to this work
| | - Matthieu Roustit
- Clinical Pharmacology Dept, INSERM CIC1406, Grenoble Alpes University Hospital, Grenoble, France.,UMR 1042-HP2, INSERM, Université Grenoble Alpes, Grenoble, France
| | - Christophe Guignabert
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,AP-HP, Service de Pneumologie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France
| | - Marie-Camille Chaumais
- INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France.,Université Paris-Sud, Faculté de Pharmacie Université Paris-Saclay, Châtenay Malabry, France.,AP-HP, Service de Pharmacie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Marc Humbert
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,AP-HP, Service de Pneumologie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France
| | - Bruno Revol
- Pharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France.,UMR 1042-HP2, INSERM, Université Grenoble Alpes, Grenoble, France
| | - Fabien Despas
- Medical and Clinical Pharmacology Unit, CHU Toulouse University Hospital, Toulouse, France.,INSERM UMR1027, University of Toulouse III Paul-Sabatier, Toulouse, France.,INSERM CIC 1436, Toulouse Clinical Investigation Centre, Toulouse, France
| | - David Montani
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,AP-HP, Service de Pneumologie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France
| | - Jean-Luc Cracowski
- Pharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France.,Clinical Pharmacology Dept, INSERM CIC1406, Grenoble Alpes University Hospital, Grenoble, France.,UMR 1042-HP2, INSERM, Université Grenoble Alpes, Grenoble, France
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Price LC, Seckl MJ, Dorfmüller P, Wort SJ. Tumoral pulmonary hypertension. Eur Respir Rev 2019; 28:28/151/180065. [DOI: 10.1183/16000617.0065-2018] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 11/23/2018] [Indexed: 12/15/2022] Open
Abstract
Tumoral pulmonary hypertension (PH) comprises a variety of subtypes in patients with a current or previous malignancy. Tumoral PH principally includes the tumour-related pulmonary microvascular conditions pulmonary tumour microembolism and pulmonary tumour thrombotic microangiopathy. These inter-related conditions are frequently found inpost mortemspecimens but are notoriously difficult to diagnoseante mortem. The outlook for patients remains extremely poor although there is some emerging evidence that pulmonary vasodilators and anti-inflammatory approaches may improve survival. Tumoral PH also includes pulmonary macroembolism and tumours that involve the proximal pulmonary vasculature, such as angiosarcoma; both may mimic pulmonary embolism and chronic thromboembolic PH. Finally, tumoral PH may develop in response to treatments of an underlying malignancy. There is increasing interest in pulmonary arterial hypertension induced by tyrosine kinase inhibitors, such as dasatanib. In addition, radiotherapy and chemotherapeutic agents such as mitomycin-C can cause pulmonary veno-occlusive disease. Tumoral PH should be considered in any patient presenting with unexplained PH, especially if it is poorly responsive to standard approaches or there is a history of malignancy. This article will describe subtypes of tumoral PH, their pathophysiology, investigation and management options in turn.
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Sztuka K, Orszulak-Michalak D, Jasińska-Stroschein M. Systematic review and meta-analysis of interventions tested in animal models of pulmonary hypertension. Vascul Pharmacol 2018; 110:55-63. [PMID: 30145225 DOI: 10.1016/j.vph.2018.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/16/2018] [Accepted: 08/11/2018] [Indexed: 12/29/2022]
Abstract
A systematic review and meta-analysis was performed to test candidate therapeutic approaches in pulmonary hypertension (PH). The efficacy of 522 interventions with >200 unregistered drugs was tested on 7254 animals. We propose a modified formula to assess meta-data that concerns the contribution of PH animal model to the denoted efficacy of tested agents. The measure of efficacy expressed as a response ratio for right ventricle systolic pressure was 0.48 (95% CI, 0.46-0.50; P < 0.00001), mean pulmonary artery pressure was 0.54 (0.52-0.56; P < 0.00001), right ventricle hypertrophy was 0.49 (0.48-0.51; P < 0.00001) and pulmonary artery wall thickness was 0.58 (0.56-0.61; P < 0.00001). Only 41 out of 522 interventions were ineffective. The most potent agents to improve both haemodynamic and hypertrophic parameters were ATP-sensitive potassium channel openers with iptakalim, Rho/ROCK inhibitors with fasudil, RAAS regulators with adenosine and ACE2 activators, and anti-inflammatories with n-3 polyunsaturated fatty acids and NF-кB inhibitors.
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Affiliation(s)
- Katarzyna Sztuka
- Department of Biopharmacy, Medical University of Łódź, ul. Muszyńskiego 1, 90-151 Lodz, Poland
| | - Daria Orszulak-Michalak
- Department of Biopharmacy, Medical University of Łódź, ul. Muszyńskiego 1, 90-151 Lodz, Poland
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Medical Management of Pulmonary Hypertension with Unclear and/or Multifactorial Mechanisms (Group 5): Is There a Role for Pulmonary Arterial Hypertension Medications? Curr Hypertens Rep 2017; 19:86. [PMID: 29046979 DOI: 10.1007/s11906-017-0783-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review was to outline the mechanisms and to review recent literature on pulmonary arterial hypertension (PAH) medications in group 5 pulmonary hypertension (PH). RECENT FINDINGS The first steps in management are to understand the mechanisms and hemodynamic profile and to exclude chronic thromboembolic disease. Recent studies in the past 5 years have found that PAH medications may improve hemodynamics in patients with pre-capillary pulmonary hypertension due to sarcoidosis, pulmonary Langerhans cell histiocytosis, lymphangioleiomyomatosis, and myeloproliferative disorders with dasatinib-induced PH. Improvements in exercise capacity are uncommon, and no survival benefit has been demonstrated. There is a risk of pulmonary edema in patients with pulmonary venous involvement or fibrosing mediastinitis when treated with PAH therapies. There is limited evidence supporting the use of PAH medications in group 5 patients, and they may be harmful in certain cases. In most patients with group 5 PH, treatment should be directed to the underlying disease with PAH therapies reserved for patients with severe pre-capillary PH.
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