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Murphy MB, Yang Z, Subati T, Farber-Eger E, Kim K, Blackwell DJ, Fleming MR, Stark JM, Van Amburg JC, Woodall KK, Van Beusecum JP, Agrawal V, Smart CD, Pitzer A, Atkinson JB, Fogo AB, Bastarache JA, Kirabo A, Wells QS, Madhur MS, Barnett JV, Murray KT. LNK/SH2B3 loss of function increases susceptibility to murine and human atrial fibrillation. Cardiovasc Res 2024; 120:899-913. [PMID: 38377486 PMCID: PMC11218690 DOI: 10.1093/cvr/cvae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/31/2023] [Accepted: 10/07/2023] [Indexed: 02/22/2024] Open
Abstract
AIMS The lymphocyte adaptor protein (LNK) is a negative regulator of cytokine and growth factor signalling. The rs3184504 variant in SH2B3 reduces LNK function and is linked to cardiovascular, inflammatory, and haematologic disorders, including stroke. In mice, deletion of Lnk causes inflammation and oxidative stress. We hypothesized that Lnk-/- mice are susceptible to atrial fibrillation (AF) and that rs3184504 is associated with AF and AF-related stroke in humans. During inflammation, reactive lipid dicarbonyls are the major components of oxidative injury, and we further hypothesized that these mediators are critical drivers of the AF substrate in Lnk-/- mice. METHODS AND RESULTS Lnk-/- or wild-type (WT) mice were treated with vehicle or 2-hydroxybenzylamine (2-HOBA), a dicarbonyl scavenger, for 3 months. Compared with WT, Lnk-/- mice displayed increased AF duration that was prevented by 2-HOBA. In the Lnk-/- atria, action potentials were prolonged with reduced transient outward K+ current, increased late Na+ current, and reduced peak Na+ current, pro-arrhythmic effects that were inhibited by 2-HOBA. Mitochondrial dysfunction, especially for Complex I, was evident in Lnk-/- atria, while scavenging lipid dicarbonyls prevented this abnormality. Tumour necrosis factor-α (TNF-α) and interleukin-1 beta (IL-1β) were elevated in Lnk-/- plasma and atrial tissue, respectively, both of which caused electrical and bioenergetic remodelling in vitro. Inhibition of soluble TNF-α prevented electrical remodelling and AF susceptibility, while IL-1β inhibition improved mitochondrial respiration but had no effect on AF susceptibility. In a large database of genotyped patients, rs3184504 was associated with AF, as well as AF-related stroke. CONCLUSION These findings identify a novel role for LNK in the pathophysiology of AF in both experimental mice and humans. Moreover, reactive lipid dicarbonyls are critical to the inflammatory AF substrate in Lnk-/- mice and mediate the pro-arrhythmic effects of pro-inflammatory cytokines, primarily through electrical remodelling.
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MESH Headings
- Animals
- Atrial Fibrillation/metabolism
- Atrial Fibrillation/physiopathology
- Atrial Fibrillation/genetics
- Mice, Knockout
- Humans
- Disease Models, Animal
- Action Potentials/drug effects
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Mice, Inbred C57BL
- Male
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Interleukin-1beta/metabolism
- Interleukin-1beta/genetics
- Oxidative Stress/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Mitochondria, Heart/drug effects
- Genetic Predisposition to Disease
- Benzylamines/pharmacology
- Heart Rate/drug effects
- Tumor Necrosis Factor-alpha/metabolism
- Tumor Necrosis Factor-alpha/genetics
- Inflammation Mediators/metabolism
- Signal Transduction
- Female
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Phenotype
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Affiliation(s)
- Matthew B Murphy
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Zhenjiang Yang
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Tuerdi Subati
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Eric Farber-Eger
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
| | - Kyungsoo Kim
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Daniel J Blackwell
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Matthew R Fleming
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
| | - Joshua M Stark
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Joseph C Van Amburg
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Kaylen K Woodall
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Justin P Van Beusecum
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Vineet Agrawal
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
| | - Charles D Smart
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Ashley Pitzer
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - James B Atkinson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, 1161 21 Avenue South, Nashville, TN 37232, USA
| | - Agnes B Fogo
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, 1161 21 Avenue South, Nashville, TN 37232, USA
| | - Julie A Bastarache
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
| | - Annet Kirabo
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Quinn S Wells
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, 2525 West End Avenue, Nashville, TN 37203, USA
| | - Meena S Madhur
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Joey V Barnett
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Katherine T Murray
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, 559 PRB, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232, USA
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Sadigh S, Kim AS. Molecular Pathology of Myeloid Neoplasms: Molecular Pattern Recognition. Clin Lab Med 2024; 44:339-353. [PMID: 38821648 DOI: 10.1016/j.cll.2023.08.007] [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] [Indexed: 06/02/2024]
Abstract
Despite the apparent complexity of the molecular genetic underpinnings of myeloid neoplasms, most myeloid mutational profiles can be understood within a simple framework. Somatic mutations accumulate in hematopoietic stem cells with aging and toxic insults, termed clonal hematopoiesis. These "old stem cells" mutations, predominantly in the epigenetic and RNA spliceosome pathways, act as "founding" driver mutations leading to a clonal myeloid neoplasm when sufficient in number and clone size. Subsequent mutations can create the genetic flavor of the myeloid neoplasm ("backseat" drivers) due to their enrichment in certain entities or act as progression events ("aggressive" drivers) during clonal evolution.
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Affiliation(s)
- Sam Sadigh
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Annette S Kim
- Division of Diagnostic Genetics and Genomics, Department of Pathology, University of Michigan/Michigan Medicine, 2800 Plymouth Road, NCRC 36-1221-79, Ann Arbor, MI 48109, USA.
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3
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Tashkandi H, Younes IE. Advances in Molecular Understanding of Polycythemia Vera, Essential Thrombocythemia, and Primary Myelofibrosis: Towards Precision Medicine. Cancers (Basel) 2024; 16:1679. [PMID: 38730632 PMCID: PMC11083661 DOI: 10.3390/cancers16091679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Myeloproliferative neoplasms (MPNs), including Polycythemia Vera (PV), Essential Thrombocythemia (ET), and Primary Myelofibrosis (PMF), are characterized by the clonal proliferation of hematopoietic stem cells leading to an overproduction of hematopoietic cells. The last two decades have seen significant advances in our understanding of the molecular pathogenesis of these diseases, with the discovery of key mutations in the JAK2, CALR, and MPL genes being pivotal. This review provides a comprehensive update on the molecular landscape of PV, ET, and PMF, highlighting the diagnostic, prognostic, and therapeutic implications of these genetic findings. We delve into the challenges of diagnosing and treating patients with prognostic mutations, clonal evolution, and the impact of emerging technologies like next-generation sequencing and single-cell genomics on the field. The future of MPN management lies in leveraging these molecular insights to develop personalized treatment strategies, aiming for precision medicine that optimizes outcomes for patients. This article synthesizes current knowledge on molecular diagnostics in MPNs, underscoring the critical role of genetic profiling in enhancing patient care and pointing towards future research directions that promise to further refine our approach to these complex disorders.
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Affiliation(s)
- Hammad Tashkandi
- Department of Pathology and Laboratory Medicine, Moffitt Cancer Center, Tampa, FL 33612, USA
| | - Ismail Elbaz Younes
- Department of Laboratory Medicine and Pathology, Division of Hematopathology, University of Minnesota, Minneapolis, MN 55455, USA;
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Cheng M, Li T, Hu E, Yan Q, Li H, Wang Y, Luo J, Tang T. A novel strategy of integrating network pharmacology and transcriptome reveals antiapoptotic mechanisms of Buyang Huanwu Decoction in treating intracerebral hemorrhage. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117123. [PMID: 37673200 DOI: 10.1016/j.jep.2023.117123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Buyang Huanwu Decoction (BYHWD), as a traditional Chinese medical prescription, has been used to treat intracerebral hemorrhage (ICH) for hundreds of years, but the antiapoptotic properties have not yet been studied. AIM OF THE STUDY This study aims to elucidate the antiapoptotic mechanism of BYHWD in ICH. MATERIALS AND METHODS The therapeutic effect of BYHWD on ICH was assessed by modified neurological severity scores (mNSS), foot fault, and histopathological staining. Then, we used a modified comprehensive strategy by integrating transcriptome and network pharmacology to reveal the underlying mechanism. TUNEL assay, qRT-PCR, and western blot were further applied to evaluate the antiapoptotic effect of BYHWD on ICH. Dual-luciferase reporter assay and plasmid transfections were implemented to validate the potential competing endogenous RNAs (ceRNA) mechanism of Sh2b3. RESULTS Network pharmacology analysis indicated that the regulation of the apoptotic process was the highest enriched GO term, and that MAP kinase activity, ERK1, and ERK2 cascade were strongly correlated. Transcriptome analysis screened 180 differentially expressed mRNAs, which were highly enriched in the immune system process and negative regulation of programmed cell death. By checking the literature, we found that Sh2b3 was of great importance to apoptosis by modulating MAPK cascades. TUNEL assay validated the anti-apoptotic effect of BYHWD. Moreover, BYHWD was proven to regulate the Sh2b3-mediated ERK1/2 signaling pathway in ICH mice by qRT-PCR and western blot. We further explored the lncRNA-miRNA-mRNA network underlying the therapeutic effect, among which 4933404O12Rik/miR-185-5p is the upstream regulatory mechanism of Sh2b3. CONCLUSIONS We explored the antiapoptotic mechanism of BYHWD in treating ICH by a novel integrated strategy, which involved the 4933404O12Rik/miR-185-5p/Sh2b3 ceRNAs axis.
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Affiliation(s)
- Menghan Cheng
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Teng Li
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Department of Neurology of Integrated Chinese Medicine, Xiangya Jiangxi Hospital, Central South University, Nanchang, 330006, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - En Hu
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Department of Neurology of Integrated Chinese Medicine, Xiangya Jiangxi Hospital, Central South University, Nanchang, 330006, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Qiuju Yan
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Haigang Li
- Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha, Hunan, 410219, PR China
| | - Yang Wang
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Department of Neurology of Integrated Chinese Medicine, Xiangya Jiangxi Hospital, Central South University, Nanchang, 330006, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Jiekun Luo
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Department of Neurology of Integrated Chinese Medicine, Xiangya Jiangxi Hospital, Central South University, Nanchang, 330006, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Tao Tang
- Institute of Integrative Chinese Medicine, Department of Integrated Chinese Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Department of Neurology of Integrated Chinese Medicine, Xiangya Jiangxi Hospital, Central South University, Nanchang, 330006, PR China; NATCM Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China.
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5
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Verma T, Papadantonakis N, Peker Barclift D, Zhang L. Molecular Genetic Profile of Myelofibrosis: Implications in the Diagnosis, Prognosis, and Treatment Advancements. Cancers (Basel) 2024; 16:514. [PMID: 38339265 PMCID: PMC10854658 DOI: 10.3390/cancers16030514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Myelofibrosis (MF) is an essential element of primary myelofibrosis, whereas secondary MF may develop in the advanced stages of other myeloid neoplasms, especially polycythemia vera and essential thrombocythemia. Over the last two decades, advances in molecular diagnostic techniques, particularly the integration of next-generation sequencing in clinical laboratories, have revolutionized the diagnosis, classification, and clinical decision making of myelofibrosis. Driver mutations involving JAK2, CALR, and MPL induce hyperactivity in the JAK-STAT signaling pathway, which plays a central role in cell survival and proliferation. Approximately 80% of myelofibrosis cases harbor additional mutations, frequently in the genes responsible for epigenetic regulation and RNA splicing. Detecting these mutations is crucial for diagnosing myeloproliferative neoplasms (MPNs), especially in cases where no mutations are present in the three driver genes (triple-negative MPNs). While fibrosis in the bone marrow results from the disturbance of inflammatory cytokines, it is fundamentally associated with mutation-driven hematopoiesis. The mutation profile and order of acquiring diverse mutations influence the MPN phenotype. Mutation profiling reveals clonal diversity in MF, offering insights into the clonal evolution of neoplastic progression. Prognostic prediction plays a pivotal role in guiding the treatment of myelofibrosis. Mutation profiles and cytogenetic abnormalities have been integrated into advanced prognostic scoring systems and personalized risk stratification for MF. Presently, JAK inhibitors are part of the standard of care for MF, with newer generations developed for enhanced efficacy and reduced adverse effects. However, only a minority of patients have achieved a significant molecular-level response. Clinical trials exploring innovative approaches, such as combining hypomethylation agents that target epigenetic regulators, drugs proven effective in myelodysplastic syndrome, or immune and inflammatory modulators with JAK inhibitors, have demonstrated promising results. These combinations may be more effective in patients with high-risk mutations and complex mutation profiles. Expanding mutation profiling studies with more sensitive and specific molecular methods, as well as sequencing a broader spectrum of genes in clinical patients, may reveal molecular mechanisms in cases currently lacking detectable driver mutations, provide a better understanding of the association between genetic alterations and clinical phenotypes, and offer valuable information to advance personalized treatment protocols to improve long-term survival and eradicate mutant clones with the hope of curing MF.
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Affiliation(s)
- Tanvi Verma
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Nikolaos Papadantonakis
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
| | - Deniz Peker Barclift
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Linsheng Zhang
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
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Liongue C, Ward AC. Myeloproliferative Neoplasms: Diseases Mediated by Chronic Activation of Signal Transducer and Activator of Transcription (STAT) Proteins. Cancers (Basel) 2024; 16:313. [PMID: 38254802 PMCID: PMC10813624 DOI: 10.3390/cancers16020313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Myeloproliferative neoplasms (MPNs) are hematopoietic diseases characterized by the clonal expansion of single or multiple lineages of differentiated myeloid cells that accumulate in the blood and bone marrow. MPNs are grouped into distinct categories based on key clinical presentations and distinctive mutational hallmarks. These include chronic myeloid leukemia (CML), which is strongly associated with the signature BCR::ABL1 gene translocation, polycythemia vera (PV), essential thrombocythemia (ET), and primary (idiopathic) myelofibrosis (PMF), typically accompanied by molecular alterations in the JAK2, MPL, or CALR genes. There are also rarer forms such as chronic neutrophilic leukemia (CNL), which involves mutations in the CSF3R gene. However, rather than focusing on the differences between these alternate disease categories, this review aims to present a unifying molecular etiology in which these overlapping diseases are best understood as disruptions of normal hematopoietic signaling: specifically, the chronic activation of signaling pathways, particularly involving signal transducer and activator of transcription (STAT) transcription factors, most notably STAT5B, leading to the sustained stimulation of myelopoiesis, which underpins the various disease sequalae.
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Affiliation(s)
- Clifford Liongue
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, VIC 3216, Australia
| | - Alister C. Ward
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, VIC 3216, Australia
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7
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Carter-Su C, Argetsinger LS, Svezhova N. 2022 Cannon lecture: an ode to signal transduction: how the growth hormone pathway revealed insight into height, malignancy, and obesity. Am J Physiol Endocrinol Metab 2023; 325:E425-E437. [PMID: 37672248 PMCID: PMC10874654 DOI: 10.1152/ajpendo.00265.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 09/07/2023]
Abstract
Walter Cannon was a highly regarded American neurologist and physiologist with extremely broad interests. In the tradition of Cannon and his broad interests, we discuss our laboratory's multifaceted work in signal transduction over the past 40+ years. We show how our questioning of how growth hormone (GH) in the blood communicates with cells throughout the body to promote body growth and regulate body metabolism led to insight into not only body height but also important regulators of malignancy and body weight. Highlights include finding that 1) A critical initiating step in GH signal transduction is GH activating the GH receptor-associated tyrosine kinase JAK2; 2) GH activation of JAK2 leads to activation of a number of signaling proteins, including STAT transcription factors; 3) JAK2 is autophosphorylated on multiple tyrosines that regulate the activity of JAK2 and recruit signaling proteins to GH/GH receptor/JAK2 complexes; 4) Constitutively activated STAT proteins are associated with cancer; 5) GH activation of JAK2 recruits the adapter protein SH2B1 to GH/GH receptor/JAK2 complexes where it facilitates GH regulation of the actin cytoskeleton and motility; and 6) SH2B1 is recruited to other receptors in the brain, where it enhances satiety, most likely in part by regulating leptin action and neuronal connections of appetite-regulating neurons. These findings have led to increased understanding of how GH functions, as well as therapeutic interventions for certain cancer and obese individuals, thereby reinforcing the great importance of supporting basic research since one never knows ahead of time what important insight it can provide.
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Affiliation(s)
- Christin Carter-Su
- University of Michigan Medical School, Ann Arbor, Michigan, United States
| | | | - Nadezhda Svezhova
- University of Michigan Medical School, Ann Arbor, Michigan, United States
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8
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Vermeersch G, Devos T, Devos H, Lambert F, Poppe B, Van Hecke S. Germline heterozygous SH2B3-mutations and (idiopathic) erythrocytosis: Detection of a previously undescribed mutation. EJHAEM 2023; 4:1143-1147. [PMID: 38024597 PMCID: PMC10660405 DOI: 10.1002/jha2.800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 09/16/2023] [Accepted: 09/20/2023] [Indexed: 12/01/2023]
Abstract
Erythrocytosis or polycythemia refers to a true or apparent increase in hemoglobin or hematocrit. When no etiology of erythrocytosis is identified, people are diagnosed with "idiopathic erythrocytosis" (IE). The identification of new contributing genes has recently improved the diagnostic workup of IE. As such mutations within the SH2B3 gene, which codes for the LNK protein and negatively regulates the JAK-STAT pathway, have been identified in cases diagnosed as IE. This reports describes the presence of a previously undescribed germline SH2B3 variant p.(Thr335ArgfsTer4) within IE and emphasizes the advantages of gene panel sequencing as second step in the diagnostic work-up.
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Affiliation(s)
- Gaël Vermeersch
- Department of HematologyUniversity Hospitals LeuvenLeuvenBelgium
- Department of HematologyAZ DamiaanOstendBelgium
| | - Timothy Devos
- Department of HematologyUniversity Hospitals LeuvenLeuvenBelgium
- Department of Microbiology and ImmunologyLaboratory of Molecular Immunology (Rega Institute), KU LeuvenLeuvenBelgium
| | - Helena Devos
- Department of Laboratory HematologyAZ Sint‐Jan Brugge‐Oostende AVBrugesBelgium
| | - Frédéric Lambert
- Center for Human Genetic, Molecular Hemato‐Oncology UnitUniLab Liège, Centre Hospitalier Universitaire de LiègeLiègeBelgium
| | - Bruce Poppe
- Center for Medical GeneticsGhent University HospitalGhentBelgium
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9
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López-Mejía JA, Mantilla-Ollarves JC, Rocha-Zavaleta L. Modulation of JAK-STAT Signaling by LNK: A Forgotten Oncogenic Pathway in Hormone Receptor-Positive Breast Cancer. Int J Mol Sci 2023; 24:14777. [PMID: 37834225 PMCID: PMC10573125 DOI: 10.3390/ijms241914777] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Breast cancer remains the most frequently diagnosed cancer in women worldwide. Tumors that express hormone receptors account for 75% of all cases. Understanding alternative signaling cascades is important for finding new therapeutic targets for hormone receptor-positive breast cancer patients. JAK-STAT signaling is commonly activated in hormone receptor-positive breast tumors, inducing inflammation, proliferation, migration, and treatment resistance in cancer cells. In hormone receptor-positive breast cancer, the JAK-STAT cascade is stimulated by hormones and cytokines, such as prolactin and IL-6. In normal cells, JAK-STAT is inhibited by the action of the adaptor protein, LNK. However, the role of LNK in breast tumors is not fully understood. This review compiles published reports on the expression and activation of the JAK-STAT pathway by IL-6 and prolactin and potential inhibition of the cascade by LNK in hormone receptor-positive breast cancer. Additionally, it includes analyses of available datasets to determine the level of expression of LNK and various members of the JAK-STAT family for the purpose of establishing associations between expression and clinical outcomes. Together, experimental evidence and in silico studies provide a better understanding of the potential implications of the JAK-STAT-LNK loop in hormone receptor-positive breast cancer progression.
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Affiliation(s)
- José A. López-Mejía
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 03100, Mexico; (J.A.L.-M.); (J.C.M.-O.)
| | - Jessica C. Mantilla-Ollarves
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 03100, Mexico; (J.A.L.-M.); (J.C.M.-O.)
| | - Leticia Rocha-Zavaleta
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 03100, Mexico; (J.A.L.-M.); (J.C.M.-O.)
- Programa Institucional de Cáncer de Mama, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 03100, Mexico
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10
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Zhang J, Shen K, Xiao M, Huang J, Wang J, Wang Y, Hong Z. Case report: Application of targeted NGS for the detection of non-canonical driver variants in MPN. Front Genet 2023; 14:1198834. [PMID: 37396034 PMCID: PMC10313112 DOI: 10.3389/fgene.2023.1198834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023] Open
Abstract
Background: JAK2, CALR, and MPL gene mutations are recognized as driver mutations of myeloproliferative neoplasms (MPNs). MPNs without these mutations are called triple-negative (TN) MPNs. Recently, novel mutation loci were continuously discovered using next-generation sequencing (NGS), along with continued discussion and modification of the traditional TN MPN. Case presentation: Novel pathogenic mutations were discovered by targeted NGS in 4 patients who were diagnosed as JAK2 unmutated polycythaemia vera (PV) or TN MPN. Cases 1, 2, and 3 were of patients with PV, essential thrombocythemia (ET), and primary myelofibrosis (PMF); NGS detected JAK2 p.H538_K539delinsQL (uncommon), CALR p.E380Rfs*51 (novel), and MPL p.W515_Q516del (novel) mutations. Case 4 involved a patient with PMF; JAK2, CALR, or MPL mutations were not detected by qPCR or NGS, but a novel mutation SH2B3 p.S337Ffs*3, which is associated with the JAK/STAT signal transduction pathway, was found by NGS. Conclusion: NGS, a more multidimensional and comprehensive gene mutation detection, is required for patients suspected of having MPN to detect non-canonical driver variants and avoid the misdiagnosis of TN MPN. SH2B3 p.S337Ffs*3 can drive MPN occurrence, and SH2B3 mutation may also be a driver mutation of MPN.
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Affiliation(s)
- Jin Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kefeng Shen
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Min Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jinjin Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jin Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yaqin Wang
- Department of Pediatric Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhenya Hong
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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11
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Maaziz N, Garrec C, Airaud F, Bobée V, Contentin N, Cayssials E, Rimbert A, Aral B, Bézieau S, Gardie B, Girodon F. Germline JAK2 E846D Substitution as the Cause of Erythrocytosis? Genes (Basel) 2023; 14:genes14051066. [PMID: 37239426 DOI: 10.3390/genes14051066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
The discovery in 2005 of the JAK2 V617F gain-of-function mutation in myeloproliferative neoplasms and more particularly in polycythemia vera has deeply changed the diagnostic and therapeutic approaches to polycythemia. More recently, the use of NGS in routine practice has revealed a large number of variants, although it is not always possible to classify them as pathogenic. This is notably the case for the JAK2 E846D variant for which for which questions remain unanswered. In a large French national cohort of 650 patients with well-characterized erythrocytosis, an isolated germline heterozygous JAK2 E846D substitution was observed in only two cases. For one of the patients, a family study could be performed, without segregation of the variant with the erythrocytosis phenotype. On the other hand, based on the large UK Biobank resource cohort including more than half a million UK participants, the JAK2 E846D variant was found in 760 individuals, associated with a moderate increase in hemoglobin and hematocrit values, but with no significant difference to the mean values of the rest of the studied population. Altogether, our data as well as UK Biobank cohort analyses suggest that the occurrence of an absolute polycythemia cannot be attributed to the sole demonstration of an isolated JAK2 E846D variant. However, it must be accompanied by other stimuli or favoring factors in order to generate absolute erythrocytosis.
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Affiliation(s)
- Nada Maaziz
- Laboratoire de Génétique Chromosomique et Moléculaire, Pôle Biologie, CHU de Dijon, 21000 Dijon, France
| | - Céline Garrec
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France
| | - Fabrice Airaud
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France
| | - Victor Bobée
- Service d'Hématologie Biologique, CHU de Rouen, 76000 Rouen, France
| | | | - Emilie Cayssials
- Service d'Oncologie Hématologique, CHU de Poitiers, 86000 Poitiers, France
| | - Antoine Rimbert
- l'Institut du Thorax, INSERM, Nantes Université, CHU Nantes, 44300 Nantes, France
| | - Bernard Aral
- Laboratoire de Génétique Chromosomique et Moléculaire, Pôle Biologie, CHU de Dijon, 21000 Dijon, France
| | - Stéphane Bézieau
- Service de Génétique Médicale, CHU de Nantes, 44000 Nantes, France
- l'Institut du Thorax, INSERM, Nantes Université, CHU Nantes, 44300 Nantes, France
| | - Betty Gardie
- l'Institut du Thorax, INSERM, Nantes Université, CHU Nantes, 44300 Nantes, France
- Ecole Pratique des Hautes Etudes, Université PSL, 75006 Paris, France
- Laboratory of Excellence GR-Ex, Imagine Institute, 75015 Paris, France
| | - François Girodon
- Laboratory of Excellence GR-Ex, Imagine Institute, 75015 Paris, France
- Service d'Hématologie Biologique, Pôle Biologie, CHU de Dijon, 21000 Dijon, France
- Inserm U1231, Université de Bourgogne, 21000 Dijon, France
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12
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Blombery P, Pazhakh V, Albuquerque AS, Maimaris J, Tu L, Briones Miranda B, Evans F, Thompson ER, Carpenter B, Proctor I, Curtin JA, Lambert J, Burns SO, Lieschke GJ. Biallelic deleterious germline SH2B3 variants cause a novel syndrome of myeloproliferation and multi-organ autoimmunity. EJHAEM 2023; 4:463-469. [PMID: 37206266 PMCID: PMC10188477 DOI: 10.1002/jha2.698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/01/2023] [Accepted: 04/15/2023] [Indexed: 05/21/2023]
Abstract
SH2B3 is a negative regulator of multiple cytokine receptor signalling pathways in haematopoietic tissue. To date, a single kindred has been described with germline biallelic loss-of-function SH2B3 variants characterized by early onset developmental delay, hepatosplenomegaly and autoimmune thyroiditis/hepatitis. Herein, we described two further unrelated kindreds with germline biallelic loss-of-function SH2B3 variants that show striking phenotypic similarity to each other as well as to the previous kindred of myeloproliferation and multi-organ autoimmunity. One proband also suffered severe thrombotic complications. CRISPR-Cas9 gene editing of zebrafish sh2b3 created assorted deleterious variants in F0 crispants, which manifest significantly increased number of macrophages and thrombocytes, partially replicating the human phenotype. Treatment of the sh2b3 crispant fish with ruxolitinib intercepted this myeloproliferative phenotype. Skin-derived fibroblasts from one patient demonstrated increased phosphorylation of JAK2 and STAT5 after stimulation with IL-3, GH, GM-CSF and EPO compared to healthy controls. In conclusion, these additional probands and functional data in combination with the previous kindred provide sufficient evidence for biallelic homozygous deleterious variants in SH2B3 to be considered a valid gene-disease association for a clinical syndrome of bone marrow myeloproliferation and multi-organ autoimmune manifestations.
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Affiliation(s)
- Piers Blombery
- Clinical HaematologyPeter MacCallum Cancer Centre/Royal Melbourne HospitalMelbourneVictoriaAustralia
- University of MelbourneMelbourneVictoriaAustralia
| | - Vahid Pazhakh
- Clinical HaematologyPeter MacCallum Cancer Centre/Royal Melbourne HospitalMelbourneVictoriaAustralia
- Australian Regenerative Medicine InstituteMonash UniversityClaytonVictoriaAustralia
| | | | - Jesmeen Maimaris
- Institute of Immunity and TransplantationUniversity College LondonLondonUK
- Department of ImmunologyRoyal Free London NHS Foundation TrustLondonUK
| | - Lingge Tu
- Australian Regenerative Medicine InstituteMonash UniversityClaytonVictoriaAustralia
| | | | - Florence Evans
- Institute of Immunity and TransplantationUniversity College LondonLondonUK
| | - Ella R. Thompson
- Clinical HaematologyPeter MacCallum Cancer Centre/Royal Melbourne HospitalMelbourneVictoriaAustralia
- University of MelbourneMelbourneVictoriaAustralia
| | - Ben Carpenter
- Department of HaematologyUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Ian Proctor
- Department of HaematologyUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Julie A. Curtin
- Haematology DepartmentChildren's Hospital at WestmeadWestmeadNew South WalesAustralia
| | - Jonathan Lambert
- Department of HaematologyUniversity College London Hospitals NHS Foundation TrustLondonUK
- Department of HaematologyUCL Cancer InstituteUniversity College LondonLondonUK
| | - Siobhan O. Burns
- Institute of Immunity and TransplantationUniversity College LondonLondonUK
- Department of ImmunologyRoyal Free London NHS Foundation TrustLondonUK
| | - Graham J. Lieschke
- Clinical HaematologyPeter MacCallum Cancer Centre/Royal Melbourne HospitalMelbourneVictoriaAustralia
- Australian Regenerative Medicine InstituteMonash UniversityClaytonVictoriaAustralia
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13
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Yang Y, Shu Y, Tang Y, Zhao S, Jia Y, Ji J, Ma H, Lin T, Zheng K, Xu H, Wu Y. RNA sequencing of myeloid sarcoma, shed light on myeloid sarcoma stratification. Cancer Med 2023; 12:9156-9166. [PMID: 36916780 PMCID: PMC10166975 DOI: 10.1002/cam4.5654] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Myeloid sarcoma (MS) is a rare, extramedullary tumor consisting of myeloid blasts. Little is known about the genetic background of MS and the prognostic value of genetic abnormalities in MS. In particular, the broad variety of gene fusions that occur in MS is marginally covered by traditional testing methods due to lack of fresh tumor specimens. METHODS Here, we analyzed the clinical and genetic features of 61 MS cases. We performed RNA sequencing (RNA-seq) on formalin-fixed paraffin-embedded (FFPE) or fresh samples to analyze fusion genes in 26 cases. In addition, we performed genetic abnormalities-based risk stratification using fusion genes and gene mutations. RESULTS A total of 305 fusion genes were identified in 22 cases, including the following five recurrent fusion genes: RUNX1-RUNX1T1, CBFβ-MYH11, ETV6-MECOM, FUS-ERG, and PICALM-MLLT10. The prognosis in the adverse-risk group was significantly worse than that in the favorable/intermediate-risk group (median survival: 12 months vs. not reached; p = 0.0004). CONCLUSION These results indicated the efficacy of RNA-seq using FFPE-derived RNA as a clinical routine for detecting fusion genes, which can be used as markers for risk stratification in MS.
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Affiliation(s)
- Yunfan Yang
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yang Shu
- Department of Gastrointestinal Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yuan Tang
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Sha Zhao
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yongqian Jia
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Jie Ji
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Hongbing Ma
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Ting Lin
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Ke Zheng
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Heng Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yu Wu
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
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14
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Conserva MR, Redavid I, Anelli L, Zagaria A, Tarantini F, Cumbo C, Tota G, Parciante E, Coccaro N, Minervini CF, Minervini A, Specchia G, Musto P, Albano F. IKAROS in Acute Leukemia: A Positive Influencer or a Mean Hater? Int J Mol Sci 2023; 24:ijms24043282. [PMID: 36834692 PMCID: PMC9961161 DOI: 10.3390/ijms24043282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/31/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
One key process that controls leukemogenesis is the regulation of oncogenic gene expression by transcription factors acting as tumor suppressors. Understanding this intricate mechanism is crucial to elucidating leukemia pathophysiology and discovering new targeted treatments. In this review, we make a brief overview of the physiological role of IKAROS and the molecular pathway that contributes to acute leukemia pathogenesis through IKZF1 gene lesions. IKAROS is a zinc finger transcription factor of the Krüppel family that acts as the main character during hematopoiesis and leukemogenesis. It can activate or repress tumor suppressors or oncogenes, regulating the survival and proliferation of leukemic cells. More than 70% of Ph+ and Ph-like cases of acute lymphoblastic leukemia exhibit IKZF1 gene variants, which are linked to worse treatment outcomes in both childhood and adult B-cell precursor acute lymphoblastic leukemia. In the last few years, much evidence supporting IKAROS involvement in myeloid differentiation has been reported, suggesting that loss of IKZF1 might also be a determinant of oncogenesis in acute myeloid leukemia. Considering the complicated "social" network that IKAROS manages in hematopoietic cells, we aim to focus on its involvement and the numerous alterations of molecular pathways it can support in acute leukemias.
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Affiliation(s)
- Maria Rosa Conserva
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Immacolata Redavid
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Luisa Anelli
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Antonella Zagaria
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Francesco Tarantini
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Cosimo Cumbo
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Giuseppina Tota
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Elisa Parciante
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Nicoletta Coccaro
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Crescenzio Francesco Minervini
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Angela Minervini
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Giorgina Specchia
- School of Medicine, University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Pellegrino Musto
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
| | - Francesco Albano
- Hematology Section, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari ‘Aldo Moro’, 70124 Bari, Italy
- Correspondence:
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15
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Singh S, Singh J, Mehta A, Sharma R, Joshi K, Jain K, Paul D, Oberoi G, Jindal N, Dhillon B, Narang V. Distinctive Attributes of Indian Patients With Classical BCR::ABL1 Negative Myeloproliferative Neoplasms: Unified Clinical and Laboratory Data. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:360-369.e1. [PMID: 36849307 DOI: 10.1016/j.clml.2023.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/29/2023]
Abstract
INTRODUCTION We report one of the largest single center data from a mixed referral setting in India describing baseline characteristics and outcomes of patients with classical BCR::ABL1 negative myeloproliferative neoplasms (MPNs). MATERIALS AND METHODS Patients diagnosed from June 2019 to 2022 were included. Workup and treatment was as per current guidelines. RESULTS Diagnosis comprised polycythemia vera (PV) in 51(49%), ET in 33(31.7%) and prefibrotic primary myelofibrosis (MF) pre fibrotic myelofibrosis (prePMF) and myelofibrosis in 10(9.6%) patients each. Median age at diagnosis was 52 years for PV and ET, 65.5 for MF and 79 years for prePMF. Diagnosis was incidental in 63(56.7%) and after thrombosis in 8(7.2%) patients. Baseline next generation sequencing (NGS) was available for 63(60.5%) patients. Driver mutations in PV: JAK2 in 80.3%; in ET: JAK2 in 41%, CALR in 26%, MPL in 2.9%; in prePMF JAK2 in 70%, CALR in 20%, MPL in 10%, and in MF: JAK2 in 10%, MPL in 30% and CALR in 40%. Seven novel mutations were detected of which 5 were potentially pathogenic on computational analysis. After median follow up of 30 months, 2 patients had disease transformation and none had new episodes of thrombosis. Ten patients died, most commonly with cardiovascular events(n = 5,50%). Median overall survival was not reached. Mean OS time was 10.19 years(95%CI, 8.6 to 11.74) and mean time to transformation was 12.2 years(95% CI,11.8 to 12.6). CONCLUSION Our data indicates comparatively indolent presentation of MPNs in India with younger age and lower risk of thrombosis. Further follow up will enable correlation with molecular data and guide modification of age based risk stratification models.
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Affiliation(s)
- Suvir Singh
- Department of Clinical Haematology and Stem Cell Transplantation, Dayanand Medical College and Hospital, Ludhiana, India.
| | - Jagdeep Singh
- Department of Medical Oncology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Arpan Mehta
- Neuberg Supratech Reference Laboratories, Ahmedabad, India
| | - Rintu Sharma
- Department of Clinical Haematology and Stem Cell Transplantation, Dayanand Medical College and Hospital, Ludhiana, India
| | - Kaveri Joshi
- Department of Clinical Haematology and Stem Cell Transplantation, Dayanand Medical College and Hospital, Ludhiana, India
| | - Kunal Jain
- Department of Medical Oncology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Davinder Paul
- Department of Medical Oncology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Gurleen Oberoi
- Department of Hematopathology, All India Institute of Medical Sciences, New Delhi, India
| | - Nandita Jindal
- Department of Molecular Genetics, Dayanand Medical College and Hospital, Ludhiana, India
| | - Barjinderjit Dhillon
- Department of Molecular Genetics, Dayanand Medical College and Hospital, Ludhiana, India
| | - Vikram Narang
- Department of Pathology, Dayanand Medical College and Hospital, Ludhiana, India
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16
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Abbou N, Piazzola P, Gabert J, Ernest V, Arcani R, Couderc AL, Tichadou A, Roche P, Farnault L, Colle J, Ouafik L, Morange P, Costello R, Venton G. Impact of Molecular Biology in Diagnosis, Prognosis, and Therapeutic Management of BCR::ABL1-Negative Myeloproliferative Neoplasm. Cells 2022; 12:cells12010105. [PMID: 36611899 PMCID: PMC9818322 DOI: 10.3390/cells12010105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/16/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
BCR::ABL1-negative myeloproliferative neoplasms (MPNs) include three major subgroups-polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF)-which are characterized by aberrant hematopoietic proliferation with an increased risk of leukemic transformation. Besides the driver mutations, which are JAK2, CALR, and MPL, more than twenty additional mutations have been identified through the use of next-generation sequencing (NGS), which can be involved with pathways that regulate epigenetic modifications, RNA splicing, or DNA repair. The aim of this short review is to highlight the impact of molecular biology on the diagnosis, prognosis, and therapeutic management of patients with PV, ET, and PMF.
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Affiliation(s)
- Norman Abbou
- Molecular Biology Laboratory, North University Hospital, 13015 Marseille, France
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
| | - Pauline Piazzola
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
| | - Jean Gabert
- Molecular Biology Laboratory, North University Hospital, 13015 Marseille, France
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
| | - Vincent Ernest
- Hematology Laboratory, Timone University Hospital, 13005 Marseille, France
| | - Robin Arcani
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
- Department of Internal Medicine, Timone University Hospital, 13005 Marseille, France
| | - Anne-Laure Couderc
- Department of Geriatrics, South University Hospital, 13005 Marseille, France
| | - Antoine Tichadou
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
| | - Pauline Roche
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
| | - Laure Farnault
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
| | - Julien Colle
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
| | - L’houcine Ouafik
- CNRS, INP, Institute of Neurophysiopathol, Aix-Marseille Université, 13005 Marseille, France
- APHM, CHU Nord, Service d’Onco-Biologie, Aix-Marseille Université, 13005 Marseille, France
| | - Pierre Morange
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
- Hematology Laboratory, Timone University Hospital, 13005 Marseille, France
| | - Régis Costello
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
- TAGC, INSERM, UMR1090, Aix-Marseille University, 13005 Marseille, France
| | - Geoffroy Venton
- INSERM, INRAE, C2VN, Aix-Marseille University, 13005 Marseille, France
- Hematology and Cellular Therapy Department, Conception University Hospital, 13005 Marseille, France
- TAGC, INSERM, UMR1090, Aix-Marseille University, 13005 Marseille, France
- Correspondence: ; Tel.: +33-4-91-38-41-52
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Beghini A, Leuzzi L, Abazari N, Bossi LE, Guido V, Trojani A, Cairoli R. A novel start-loss mutation of the SH2B3 gene in a family with myeloproliferative neoplasms. Hematol Oncol 2022; 40:1109-1112. [PMID: 35570682 DOI: 10.1002/hon.3023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The ever-increasing advances in high-throughput sequencing have broadened our understanding of the genetic pathogenesis of Philadelphia-negative myeloproliferative neoplasms (MPNs). Convergent studies have shown that MPN driver mutations associate with additional mutations found in genes coding for negative regulators of the JAK/STAT signaling, including the SH2B3 (SH2B-adaptor protein 3, also known as LNK). Here, we describe a novel heterozygous start-loss mutation of the SH2B3 gene (c.3G>A, SH2B3M? ) in a consanguineous family characterized by recurrent early onset of JAK2V617F -positive MPNs. The model represented by this pedigree suggests that the SH2B3 could be a predisposing mutation that facilitates the acquisition of driver mutations.
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Affiliation(s)
| | - Livia Leuzzi
- Department of Hematology, Oncology and Molecular Medicine, Niguarda Cancer Center, Milan, Italy
| | - Nazanin Abazari
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Luca E Bossi
- Department of Hematology, Oncology and Molecular Medicine, Niguarda Cancer Center, Milan, Italy
| | - Valentina Guido
- Department of Hematology, Oncology and Molecular Medicine, Pathology Unit ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Alessandra Trojani
- Department of Hematology, Oncology and Molecular Medicine, Niguarda Cancer Center, Milan, Italy
| | - Roberto Cairoli
- Department of Hematology, Oncology and Molecular Medicine, Niguarda Cancer Center, Milan, Italy
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18
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Thibord F, Klarin D, Brody JA, Chen MH, Levin MG, Chasman DI, Goode EL, Hveem K, Teder-Laving M, Martinez-Perez A, Aïssi D, Daian-Bacq D, Ito K, Natarajan P, Lutsey PL, Nadkarni GN, de Vries PS, Cuellar-Partida G, Wolford BN, Pattee JW, Kooperberg C, Braekkan SK, Li-Gao R, Saut N, Sept C, Germain M, Judy RL, Wiggins KL, Ko D, O’Donnell CJ, Taylor KD, Giulianini F, De Andrade M, Nøst TH, Boland A, Empana JP, Koyama S, Gilliland T, Do R, Huffman JE, Wang X, Zhou W, Soria JM, Souto JC, Pankratz N, Haessler J, Hindberg K, Rosendaal FR, Turman C, Olaso R, Kember RL, Bartz TM, Lynch JA, Heckbert SR, Armasu SM, Brumpton B, Smadja DM, Jouven X, Komuro I, Clapham KR, Loos RJ, Willer CJ, Sabater-Lleal M, Pankow JS, Reiner AP, Morelli VM, Ridker PM, van Hylckama Vlieg A, Deleuze JF, Kraft P, Rader DJ, Lee KM, Psaty BM, Skogholt AH, Emmerich J, Suchon P, Rich SS, Vy HMT, Tang W, Jackson RD, Hansen JB, Morange PE, Kabrhel C, Trégouët DA, Damrauer SM, Johnson AD, Smith NL. Cross-Ancestry Investigation of Venous Thromboembolism Genomic Predictors. Circulation 2022; 146:1225-1242. [PMID: 36154123 PMCID: PMC10152894 DOI: 10.1161/circulationaha.122.059675] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 08/09/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Venous thromboembolism (VTE) is a life-threatening vascular event with environmental and genetic determinants. Recent VTE genome-wide association studies (GWAS) meta-analyses involved nearly 30 000 VTE cases and identified up to 40 genetic loci associated with VTE risk, including loci not previously suspected to play a role in hemostasis. The aim of our research was to expand discovery of new genetic loci associated with VTE by using cross-ancestry genomic resources. METHODS We present new cross-ancestry meta-analyzed GWAS results involving up to 81 669 VTE cases from 30 studies, with replication of novel loci in independent populations and loci characterization through in silico genomic interrogations. RESULTS In our genetic discovery effort that included 55 330 participants with VTE (47 822 European, 6320 African, and 1188 Hispanic ancestry), we identified 48 novel associations, of which 34 were replicated after correction for multiple testing. In our combined discovery-replication analysis (81 669 VTE participants) and ancestry-stratified meta-analyses (European, African, and Hispanic), we identified another 44 novel associations, which are new candidate VTE-associated loci requiring replication. In total, across all GWAS meta-analyses, we identified 135 independent genomic loci significantly associated with VTE risk. A genetic risk score of the significantly associated loci in Europeans identified a 6-fold increase in risk for those in the top 1% of scores compared with those with average scores. We also identified 31 novel transcript associations in transcriptome-wide association studies and 8 novel candidate genes with protein quantitative-trait locus Mendelian randomization analyses. In silico interrogations of hemostasis and hematology traits and a large phenome-wide association analysis of the 135 GWAS loci provided insights to biological pathways contributing to VTE, with some loci contributing to VTE through well-characterized coagulation pathways and others providing new data on the role of hematology traits, particularly platelet function. Many of the replicated loci are outside of known or currently hypothesized pathways to thrombosis. CONCLUSIONS Our cross-ancestry GWAS meta-analyses identified new loci associated with VTE. These findings highlight new pathways to thrombosis and provide novel molecules that may be useful in the development of improved antithrombosis treatments.
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Affiliation(s)
- Florian Thibord
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
- The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
| | - Derek Klarin
- Division of Vascular Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, 94550, USA
| | - Jennifer A. Brody
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Ming-Huei Chen
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
- The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
| | - Michael G. Levin
- Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Daniel I. Chasman
- Division of Preventive Medicine, Brigham and Women’s Hospital, 900 Commonwealth Ave, Boston, MA, 02215, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Ellen L. Goode
- Department of Quantitative Health Sciences, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Kristian Hveem
- HUNT Research Center, Department of Public Health and Nursing, Norwegian University of Science and Technology, Forskningsvegen 2, Levanger, 7600, Norway
- K.G. Jebsen Centre for Genetic Epidemiology, Department of Public Health and Nursing, Norwegian University of Science and Technology, Håkon Jarls gate 11, Trondheim, 7030, Norway
| | - Maris Teder-Laving
- Institute of Genomics, University of Tartu, Riia 23b, Tartu, Tartu, 51010, Estonia
| | - Angel Martinez-Perez
- Genomics of Complex Disease Unit, Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), St Quinti 77-79, Barcelona, 8041, Spain
| | - Dylan Aïssi
- Bordeaux Population Health Research Center, University of Bordeaux, 146 rue Léo Saignat, Bordeaux, 33076, France
- UMR1219, INSERM, 146 rue Léo Saignat, Bordeaux, 33076, France
| | - Delphine Daian-Bacq
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, 2 Rue Gaston Crémieux, Evry, 91057, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
| | - Kaoru Ito
- Laboratory for Cardiovascular Genomics and Informatics, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Pradeep Natarajan
- Cardiovascular Research Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA, 02446, USA
- Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard & MIT, 75 Ames St, Cambridge, MA, 02142, USA
- Department of Medicine, Harvard Medical School, Shattuck St, Boston, MA, 02115, USA
| | - Pamela L. Lutsey
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, 1300 South Second Street, Minneapolis, MN, 55454, USA
| | - Girish N. Nadkarni
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1 Gu stave L. Levy Pl, New York, NY, 10029, USA
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
| | - Paul S. de Vries
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, 1200 Pressler St, Houston, TX, 77030, USA
| | | | - Brooke N. Wolford
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jack W. Pattee
- Division of Biostatistics, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
- Center for Innovative Design & Analysis and Department of Biostatistics & Informatics, Colorado School of Public Health, 13001 East 17th Place, Aurora, CO, 80045, USA
| | - Charles Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Sigrid K. Braekkan
- Thrombosis Research Center (TREC), UiT - The Arctic University of Norway, Universitetsvegen 57, Tromsø, 9037, Norway
- Division of internal medicine, University Hospital of North Norway, Tromsø, 9038, Norway
| | - Ruifang Li-Gao
- Clinical Epidemiology, Leiden University Medical Center, PO Box 9600, Leiden, 2300 RC, The Netherlands
| | - Noemie Saut
- Hematology Laboratory, La Timone University Hospital of Marseille, 264 Rue Saint-Pierre, Marseille, 13385, France
| | - Corriene Sept
- Department of Epidemiology, Harvard TH Chan Harvard School of Public Health, 655 Huntington Ave., Building II, Boston, MA, 02115, USA
| | - Marine Germain
- Bordeaux Population Health Research Center, University of Bordeaux, 146 rue Léo Saignat, Bordeaux, 33076, France
- UMR1219, INSERM, 146 rue Léo Saignat, Bordeaux, 33076, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
| | - Renae L. Judy
- Surgery, University of Pennsylvania, 3401 Walnut Street, Philadelphia, PA, 19104, USA
| | - Kerri L. Wiggins
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Darae Ko
- The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
- Section of Cardiovascular Medicine, Boston University School of Medicine, 85 East Newton Street, Boston, MA, 02118, USA
| | - Christopher J. O’Donnell
- Cardiology Section, Department of Medicine, VA Boston Healthcare System, Boston, MA, 02132, USA
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Kent D. Taylor
- Institute for Translational Genomics and Population Sciences, The Lundquist Institute for Biomedical Innovation, 1124 W Carson St., Torrance, CA, 90502, USA
| | - Franco Giulianini
- Division of Preventive Medicine, Brigham and Women’s Hospital, 900 Commonwealth Ave, Boston, MA, 02215, USA
| | - Mariza De Andrade
- Department of Quantitative Health Sciences, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Therese H. Nøst
- K.G. Jebsen Centre for Genetic Epidemiology, Department of Public Health and Nursing, Norwegian University of Science and Technology, Håkon Jarls gate 11, Trondheim, 7030, Norway
| | - Anne Boland
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, 2 Rue Gaston Crémieux, Evry, 91057, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
| | - Jean-Philippe Empana
- Integrative Epidemiology of cardiovascular diseases, Université Paris Cité, Paris Cardiovascular Research Center (PARCC), 56 rue Leblanc, Paris, 75015, France
- Department of Cardiology, APHP, Hopital Européen Georges Pompidou, 20 rue Leblanc, Paris, 75015, France
| | - Satoshi Koyama
- Laboratory for Cardiovascular Genomics and Informatics, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Cardiovascular Research Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA, 02446, USA
- Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard & MIT, 75 Ames St, Cambridge, MA, 02142, USA
| | - Thomas Gilliland
- Cardiovascular Research Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA, 02446, USA
- Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard & MIT, 75 Ames St, Cambridge, MA, 02142, USA
- Department of Medicine, Harvard Medical School, Shattuck St, Boston, MA, 02115, USA
| | - Ron Do
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1 Gu stave L. Levy Pl, New York, NY, 10029, USA
- BioMe Phenomics Center, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
| | - Jennifer E. Huffman
- MAVERIC, VA Boston Heathcare System, 2 Avenue de Lafayette, Boston, MA, 02111, USA
| | - Xin Wang
- 23andMe, Inc., 223 N Mathilda Ave, Sunnyvale, CA, 94086, USA
| | - Wei Zhou
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
| | - Jose Manuel Soria
- Genomics of Complex Disease Unit, Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), St Quinti 77-79, Barcelona, 8041, Spain
| | - Juan Carlos Souto
- Genomics of Complex Disease Unit, Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), St Quinti 77-79, Barcelona, 8041, Spain
- Unit of Thrombosis and Hemostasis, Hospital de la Santa Creu i Sant Pau, St Quinti 89, Barcelona, 8041, Spain
| | - Nathan Pankratz
- Department of Laboratory Medicine and Pathology, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
| | - Jeffery Haessler
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Kristian Hindberg
- Thrombosis Research Center (TREC), UiT - The Arctic University of Norway, Universitetsvegen 57, Tromsø, 9037, Norway
| | - Frits R. Rosendaal
- Clinical Epidemiology, Leiden University Medical Center, PO Box 9600, Leiden, 2300 RC, The Netherlands
| | - Constance Turman
- Department of Epidemiology, Harvard TH Chan Harvard School of Public Health, 655 Huntington Ave., Building II, Boston, MA, 02115, USA
| | - Robert Olaso
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, 2 Rue Gaston Crémieux, Evry, 91057, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
| | - Rachel L. Kember
- Psychiatry, University of Pennsylvania, 3401 Walnut Street, Philadelphia, PA, 19104, USA
| | - Traci M. Bartz
- Cardiovascular Health Research Unit, Departments of Biostatistics and Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Julie A. Lynch
- VA Informatics & Computing Infrastructure, VA Salt Lake City Healthcare System, 500 Foothills Drive, Salt Lake City, UT, 84148, USA
- Epidemiology, University of Utah, 500 Foothills Drive, Salt Lake City, UT, 84148, USA
| | - Susan R. Heckbert
- Department of Epidemiology, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Sebastian M. Armasu
- Department of Quantitative Health Sciences, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Ben Brumpton
- K.G. Jebsen Centre for Genetic Epidemiology, Department of Public Health and Nursing, Norwegian University of Science and Technology, Håkon Jarls gate 11, Trondheim, 7030, Norway
| | - David M. Smadja
- Hematology Department and Biosurgical Research Lab (Carpentier Foundation), European Georges Pompidou Hospital, Assistance Publique Hôpitaux de Paris, 20 rue Leblanc, Paris, 75015, France
- Innovative Therapies in Haemostasis, INSERM, Université de Paris, 4 avenue de l’Observatoire, Paris, 75270, France
| | - Xavier Jouven
- Integrative Epidemiology of cardiovascular diseases, Université Paris Descartes, Sorbonne Paris Cité, 56 rue Leblanc, Paris, 75015, France
- Paris Cardiovascular Research Center, Inserm U970, Université Paris Descartes, Sorbonne Paris Cité, 20 rue Leblanc, Paris, 75015, France
| | - Issei Komuro
- Department of Cardiovascular Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Tokyo, 113-8655, Japan
| | - Katharine R. Clapham
- Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard & MIT, 75 Ames St, Cambridge, MA, 02142, USA
- Department of Medicine, Harvard Medical School, Shattuck St, Boston, MA, 02115, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, 900 Commonwealth Ave, Boston, MA, 02215, USA
| | - Ruth J.F. Loos
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
| | - Cristen J. Willer
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Maria Sabater-Lleal
- Genomics of Complex Disease Unit, Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), St Quinti 77-79, Barcelona, 8041, Spain
- Cardiovascular Medicine Unit, Department of Medicine, Karolinska Institutet, Center for Molecular Medicine, Stockholm, 17176, Sweden
| | - James S. Pankow
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, 1300 South Second Street, Minneapolis, MN, 55454, USA
| | - Alexander P. Reiner
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
- Department of Epidemiology, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Vania M. Morelli
- Thrombosis Research Center (TREC), UiT - The Arctic University of Norway, Universitetsvegen 57, Tromsø, 9037, Norway
- Division of internal medicine, University Hospital of North Norway, Tromsø, 9038, Norway
| | - Paul M. Ridker
- Division of Preventive Medicine, Brigham and Women’s Hospital, 900 Commonwealth Ave, Boston, MA, 02215, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Astrid van Hylckama Vlieg
- Clinical Epidemiology, Leiden University Medical Center, PO Box 9600, Leiden, 2300 RC, The Netherlands
| | - Jean-François Deleuze
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, 2 Rue Gaston Crémieux, Evry, 91057, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
- Centre D’Etude du Polymorphisme Humain, Fondation Jean Dausset, 27 rue Juliette Dodu, Paris, 75010, France
| | - Peter Kraft
- Department of Epidemiology, Harvard TH Chan Harvard School of Public Health, 655 Huntington Ave., Building II, Boston, MA, 02115, USA
| | - Daniel J. Rader
- Departments of Medicine and Genetics and Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA
| | | | | | | | | | | | - Kyung Min Lee
- VA Informatics & Computing Infrastructure, VA Salt Lake City Healthcare System, 500 Foothills Drive, Salt Lake City, UT, 84148, USA
| | - Bruce M. Psaty
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
- Department of Epidemiology, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
- Department of Health Systems and Population Heath, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
| | - Anne Heidi Skogholt
- K.G. Jebsen Centre for Genetic Epidemiology, Department of Public Health and Nursing, Norwegian University of Science and Technology, Håkon Jarls gate 11, Trondheim, 7030, Norway
| | - Joseph Emmerich
- Department of vascular medicine, Paris Saint-Joseph Hospital Group, University of Paris, 185 rue Raymond Losserand, Paris, 75674, France
- UMR1153, INSERM CRESS, 185 rue Raymond Losserand, Paris, 75674, France
| | - Pierre Suchon
- Hematology Laboratory, La Timone University Hospital of Marseille, 264 Rue Saint-Pierre, Marseille, 13385, France
- C2VN, INSERM, INRAE, Aix-Marseille University, 27, bd Jean Moulin, Marseille, 13385, France
| | - Stephen S. Rich
- Center for Public Health Genomics, University of Virginia, 3242 West Complex, Charlottesville, VA, 22908-0717, USA
| | - Ha My T. Vy
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1 Gu stave L. Levy Pl, New York, NY, 10029, USA
| | - Weihong Tang
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, 1300 South Second Street, Minneapolis, MN, 55454, USA
| | - Rebecca D. Jackson
- College of Medicine, Ohio State University, 376 W. 10th Ave, Columbus, OH, 43210, USA
| | - John-Bjarne Hansen
- Thrombosis Research Center (TREC), UiT - The Arctic University of Norway, Universitetsvegen 57, Tromsø, 9037, Norway
- Division of internal medicine, University Hospital of North Norway, Tromsø, 9038, Norway
| | - Pierre-Emmanuel Morange
- Hematology Laboratory, La Timone University Hospital of Marseille, 264 Rue Saint-Pierre, Marseille, 13385, France
- C2VN, INSERM, INRAE, Aix-Marseille University, 27, bd Jean Moulin, Marseille, 13385, France
| | - Christopher Kabrhel
- Emergency Medicine, Massachusetts General Hospital, Zero Emerson Place, Suite 3B, Boston, MA, 02114, USA
- Emergency Medicine, Harvard Medical School, Zero Emerson Place, Suite 3B, Boston, MA, 02114, USA
| | - David-Alexandre Trégouët
- Bordeaux Population Health Research Center, University of Bordeaux, 146 rue Léo Saignat, Bordeaux, 33076, France
- UMR1219, INSERM, 146 rue Léo Saignat, Bordeaux, 33076, France
- Laboratory of Excellence on Medical Genomics, GenMed, France
| | - Scott M. Damrauer
- Corporal Michael J. Crescenz Philadelphia VA Medical Center, 3900 Woodland Ave, Philadelphia, PA, 19104, USA
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Andrew D. Johnson
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
- The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA, 01702, USA
| | - Nicholas L. Smith
- Department of Epidemiology, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, WA, 98101, USA
- Kaiser Permanente Washington Health Research Institute, Kaiser Permanente Washington, Seattle, WA, 98101, USA
- Seattle Epidemiologic Research and Information Center, Department of Veterans Affairs Office of Research and Development, Seattle, WA, 98108, USA
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19
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Alexander MR, Hank S, Dale BL, Himmel L, Zhong X, Smart CD, Fehrenbach DJ, Chen Y, Prabakaran N, Tirado B, Centrella M, Ao M, Du L, Shyr Y, Levy D, Madhur MS. A Single Nucleotide Polymorphism in SH2B3/LNK Promotes Hypertension Development and Renal Damage. Circ Res 2022; 131:731-747. [PMID: 36169218 PMCID: PMC9588739 DOI: 10.1161/circresaha.121.320625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 09/15/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND SH2B3 (SH2B adaptor protein 3) is an adaptor protein that negatively regulates cytokine signaling and cell proliferation. A common missense single nucleotide polymorphism in SH2B3 (rs3184504) results in substitution of tryptophan (Trp) for arginine (Arg) at amino acid 262 and is a top association signal for hypertension in human genome-wide association studies. Whether this variant is causal for hypertension, and if so, the mechanism by which it impacts pathogenesis is unknown. METHODS We used CRISPR-Cas9 technology to create mice homozygous for the major (Arg/Arg) and minor (Trp/Trp) alleles of this SH2B3 polymorphism. Mice underwent angiotensin II (Ang II) infusion to evaluate differences in blood pressure (BP) elevation and end-organ damage including albuminuria and renal fibrosis. Cytokine production and Stat4 phosphorylation was also assessed in Arg/Arg and Trp/Trp T cells. RESULTS Trp/Trp mice exhibit 10 mmHg higher systolic BP during chronic Ang II infusion compared to Arg/Arg controls. Renal injury and perivascular fibrosis are exacerbated in Trp/Trp mice compared to Arg/Arg controls following Ang II infusion. Renal and ex vivo stimulated splenic CD8+ T cells from Ang II-infused Trp/Trp mice produce significantly more interferon gamma (IFNg) compared to Arg/Arg controls. Interleukin-12 (IL-12)-induced IFNg production is greater in Trp/Trp compared to Arg/Arg CD8+ T cells. In addition, IL-12 enhances Stat4 phosphorylation to a greater degree in Trp/Trp compared to Arg/Arg CD8+ T cells, suggesting that Trp-encoding SH2B3 exhibits less negative regulation of IL-12 signaling to promote IFNg production. Finally, we demonstrated that a multi-SNP model genetically predicting increased SH2B3 expression in lymphocytes is inversely associated with hypertension and hypertensive chronic kidney disease in humans.. CONCLUSIONS Taken together, these results suggest that the Trp encoding allele of rs3184504 is causal for BP elevation and renal dysfunction, in part through loss of SH2B3-mediated repression of T cell IL-12 signaling leading to enhanced IFNg production.
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Affiliation(s)
- Matthew R. Alexander
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
- Department of Medicine, Division of Cardiovascular Medicine, VUMC, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Nashville, TN, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Samuel Hank
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Bethany L. Dale
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Lauren Himmel
- Department of Pathology, Microbiology and Immunology, VUMC, Nashville, TN, USA
| | - Xue Zhong
- Department of Medicine, Division of Genetic Medicine, VUMC, Nashville, TN, USA
| | - Charles D. Smart
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Daniel J. Fehrenbach
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Yuhan Chen
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
- Department of Cardiology, Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
| | | | | | - Megan Centrella
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Mingfang Ao
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Liping Du
- Department of Biostatistics, VUMC, Nashville, TN
| | - Yu Shyr
- Department of Biostatistics, VUMC, Nashville, TN
| | - Daniel Levy
- Framingham Heart Study, Framingham, MA and Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Meena S. Madhur
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
- Department of Medicine, Division of Cardiovascular Medicine, VUMC, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Nashville, TN, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
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20
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Mutational Landscape of Patients Referred for Elevated Hemoglobin Level. Curr Oncol 2022; 29:7209-7217. [PMID: 36290845 PMCID: PMC9600330 DOI: 10.3390/curroncol29100568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/13/2022] [Accepted: 09/26/2022] [Indexed: 01/13/2023] Open
Abstract
Background: Since the identification of JAK2 V617F and exon 12 mutations as driver mutations in polycythemia vera (PV) in 2005, molecular testing of these mutations for patients with erythrocytosis has become a routine clinical practice. However, the incidence of myeloid mutations other than the common JAK2 V617F mutation in unselected patients referred for elevated hemoglobin is not well studied. This study aimed to characterize the mutational landscape in a real-world population of patients referred for erythrocytosis using a targeted next-generation sequencing (NGS)-based assay. Method: A total of 529 patients (hemoglobin levels >160 g/L in females or >165 g/L in males) were assessed between January 2018 and May 2021 for genetic variants using the Oncomine Myeloid Research Assay (ThermoFisher Scientific, Waltham, MA, USA) targeting 40 key genes with diagnostic and prognostic implications in hematological conditions (17 full genes and 23 genes with clinically relevant "hotspot" regions) and a panel of 29 fusion driver genes (>600 fusion partners). Results: JAK2 mutations were detected in 10.9% (58/529) of patients, with 57 patients positive for JAK2 V617F, while one patient had a JAK2 exon 12 mutation. Additional mutations were detected in 34.5% (20/58) of JAK2-positive patients: TET2 (11; 19%), DNMT3A (2;3.4%), ASXL1 (2; 3.4%), SRSF2 (2; 3.4%), BCOR (1; 1.7%), TP53 (1; 1.7%), and ZRSR2 (1; 1.7%). Diagnosis of PV was suspected in 2 JAK2-negative patients based on the 2016 World Health Organization (WHO) diagnostic criteria. Notably, one patient carried mutations in the SRSF2 and TET2 genes, and the other patient carried mutations in the SRSF2, IDH2, and ASXL1 genes. Three JAK2-negative patients with elevated hemoglobin who tested positive for BCR/ABL1 fusion were diagnosed with chronic myeloid leukemia (CML) and excluded from further analysis. The remaining 466 JAK2-negative patients were diagnosed with secondary erythrocytosis and mutations were found in 6% (28/466) of these cases. Conclusion: Mutations other than JAK2 mutations were frequently identified in patients referred for erythrocytosis, with mutations in the TET2, DNMT3A, and ASXL1 genes being detected in 34.5% of JAK2-positive PV patients. The presence of additional mutations, such as ASXL1 mutations, in this population has implications for prognosis. Both the incidence and mutation type identified in patients with secondary erythrocytosis likely reflects incidental, age-associated clonal hematopoiesis of indeterminate potential (CHIP).
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21
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Identification of Two Novel EPOR Gene Variants in Primary Familial Polycythemia: Case Report and Literature Review. Genes (Basel) 2022; 13:genes13101686. [PMID: 36292571 PMCID: PMC9601602 DOI: 10.3390/genes13101686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/21/2022] Open
Abstract
Simple Summary Erythrocytosis can be caused by a wide variety of diseases. Some forms of erythrocytosis have an obvious cause, such as a kidney injury, or it may have an oncological cause, but in some patients, the origin of the disease is not entirely clear, and since the symptoms of an isolated erythrocytosis are not usually cumbersome, sometimes the diagnosis takes several months or years. In the present work, we report a couple of cases of familial erythrocytosis associated with novel variants in the erythropoietin receptor gene. This study serves as a reminder of the clinical and molecular study of this rare disease and expands the list of mutations associated with primary familial polycythemia. Abstract Primary familial and congenital polycythemia is a rare disease characterized by an increase in red cell mass that may be due to pathogenic variants in the EPO receptor (EPOR) gene. To date, 33 genetic variants have been reported to be associated. We analyzed the presence of EPOR variants in two patients with polycythemia in whom JAK2 pathogenic variants had been previously discarded. Molecular analysis of the EPOR gene was performed by Sanger sequencing of the coding regions and exon/intron boundaries of exon 8. We performed in vitro culture of erythroid progenitor cells. Segregation studies were done whenever possible. The two patients studied showed hypersensitivity to EPO in in vitro cultures. Analysis of the EPOR gene unveiled two novel pathogenic variants. Genetic testing of asymptomatic relatives could guarantee surveillance and proper management.
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22
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Baccelli F, Leardini D, Muratore E, Messelodi D, Bertuccio SN, Chiriaco M, Cancrini C, Conti F, Castagnetti F, Pedace L, Pession A, Yoshimi A, Niemeyer C, Tartaglia M, Locatelli F, Masetti R. Immune dysregulation associated with co-occurring germline CBL and SH2B3 variants. Hum Genomics 2022; 16:40. [PMID: 36123612 PMCID: PMC9484243 DOI: 10.1186/s40246-022-00414-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background CBL syndrome is a RASopathy caused by heterozygous germline mutations of the Casitas B-lineage lymphoma (CBL) gene. It is characterized by heterogeneous clinical phenotype, including developmental delay, facial dysmorphisms, cardiovascular malformations and an increased risk of cancer development, particularly juvenile myelomonocytic leukemia (JMML). Although the clinical phenotype has been progressively defined in recent years, immunological manifestations have not been well elucidated to date.
Methods We studied the genetic, immunological, coagulative, and clinical profile of a family with CBL syndrome that came to our observation after the diagnosis of JMML, with homozygous CBL mutation, in one of the members. Results Variant analysis revealed the co-occurrence of CBL heterozygous mutation (c.1141 T > C) and SH2B3 mutation (c.1697G > A) in two other members. Patients carrying both mutations showed an ALPS-like phenotype characterized by lymphoproliferation, cytopenia, increased double-negative T-cells, impaired Fas-mediated lymphocyte apoptosis, altered cell death in PBMC and low TRECs expression. A coagulative work-up was also performed and showed the presence of subclinical coagulative alterations in patients carrying both mutations. Conclusion In the reported family, we described immune dysregulation, as part of the clinical spectrum of CBL mutation with the co-occurrence of SH2B3. Supplementary Information The online version contains supplementary material available at 10.1186/s40246-022-00414-y.
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Affiliation(s)
- Francesco Baccelli
- Pediatric Oncology and Hematology "Lalla Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy
| | - Davide Leardini
- Pediatric Oncology and Hematology "Lalla Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy.
| | - Edoardo Muratore
- Pediatric Oncology and Hematology "Lalla Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy
| | - Daria Messelodi
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy
| | | | - Maria Chiriaco
- Chair of Pediatrics, Department of Systems Medicine, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Caterina Cancrini
- Chair of Pediatrics, Department of Systems Medicine, University of Rome Tor Vergata, 00133, Rome, Italy.,Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, Academic Department of Pediatrics, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, 00165, Rome, Italy
| | - Francesca Conti
- Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy
| | - Fausto Castagnetti
- Hematology "Lorenzo E Ariosto Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138, Bologna, Italy
| | - Lucia Pedace
- Department of Hematology/Oncology and Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Catholic University of the Sacred Heart, Rome, 00165, Rome, Italy
| | - Andrea Pession
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy
| | - Ayami Yoshimi
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Centre, Faculty of Medicine, University of Freiburg, 79085, Freiburg, Germany
| | - Charlotte Niemeyer
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Centre, Faculty of Medicine, University of Freiburg, 79085, Freiburg, Germany
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, IRCCS Ospedale Pediatrico Bambino Gesù, 00165, Rome, Italy
| | - Franco Locatelli
- Department of Hematology/Oncology and Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Catholic University of the Sacred Heart, Rome, 00165, Rome, Italy
| | - Riccardo Masetti
- Pediatric Oncology and Hematology "Lalla Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy.,Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy
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23
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Xie L, Wu S, He R, Li S, Lai X, Wang Z. Identification of epigenetic dysregulation gene markers and immune landscape in kidney renal clear cell carcinoma by comprehensive genomic analysis. Front Immunol 2022; 13:901662. [PMID: 36059531 PMCID: PMC9433776 DOI: 10.3389/fimmu.2022.901662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/28/2022] [Indexed: 12/24/2022] Open
Abstract
Kidney cancer is one the most lethal cancers of the urinary system, but current treatments are limited and its prognosis is poor. This study focused on kidney renal clear cell carcinoma (KIRC) and analyzed the relationship between epigenetic alterations and KIRC prognosis, and explored the prognostic significance of these findings in KIRC patients. Based on multi-omics data, differentially expressed histone-modified genes were identified using the R package limma package. Gene enhancers were detected from data in the FANTOM5 database. Gene promoters were screened using the R package ChIPseeker, and the Bumphunter in the R package CHAMP was applied to screen differentially methylated regions (DMR). Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis and Gene Ontology (GO) functional enrichment analysis of genes was performed using the R package clusterProfiler. We identified 51 dysregulated epigenetic protein coding genes (epi-PCGs) from 872 epi-PCGs, and categorized three molecular subtypes (C1, C2, and C3) of KIRC samples with significantly different prognosis. Notably, among the three molecular subtypes, we found a markedly differential immune features in immune checkpoints, cytokines, immune signatures, and immune cell distribution. C2 subtype had significantly lower enrichment score of IFNγ, cytotoxic score (CYT), and angiogenesis. In addition, an 8-gene signature containing 8 epi-PCGs (ETV4, SH2B3, FATE1, GRK5, MALL, HRH2, SEMA3G, and SLC10A6) was developed for predicting KIRC prognosis. Prognosis of patients with a high 8-gene signature score was significantly worse than those with a low 8-gene signature score, which was also validated by the independent validation data. The 8-gene signature had a better performance compared with previous signatures of KIRC. Overall, this study highlighted the important role of epigenetic regulation in KIRC development, and explored prognostic epi-PCGs, which may provide a guidance for exploiting further pathological mechanisms of KIRC and for developing novel drug targets.
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Affiliation(s)
- Linli Xie
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Shuang Wu
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rong He
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Sisi Li
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaodan Lai
- Department of Pharmacy, No. 958 Hospital of Chinese People's Liberation Army (PLA), Chongqing, China
- *Correspondence: Xiaodan Lai, ; Zhe Wang,
| | - Zhe Wang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- *Correspondence: Xiaodan Lai, ; Zhe Wang,
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24
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Li J, Kalev-Zylinska ML. Advances in molecular characterization of myeloid proliferations associated with Down syndrome. Front Genet 2022; 13:891214. [PMID: 36035173 PMCID: PMC9399805 DOI: 10.3389/fgene.2022.891214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Myeloid leukemia associated with Down syndrome (ML-DS) has a unique molecular landscape that differs from other subtypes of acute myeloid leukemia. ML-DS is often preceded by a myeloproliferative neoplastic condition called transient abnormal myelopoiesis (TAM) that disrupts megakaryocytic and erythroid differentiation. Over the last two decades, many genetic and epigenetic changes in TAM and ML-DS have been elucidated. These include overexpression of molecules and micro-RNAs located on chromosome 21, GATA1 mutations, and a range of other somatic mutations and chromosomal alterations. In this review, we summarize molecular changes reported in TAM and ML-DS and provide a comprehensive discussion of these findings. Recent advances in the development of CRISPR/Cas9-modified induced pluripotent stem cell-based disease models are also highlighted. However, despite significant progress in this area, we still do not fully understand the pathogenesis of ML-DS, and there are no targeted therapies. Initial diagnosis of ML-DS has a favorable prognosis, but refractory and relapsed disease can be difficult to treat; therapeutic options are limited in Down syndrome children by their stronger sensitivity to the toxic effects of chemotherapy. Because of the rarity of TAM and ML-DS, large-scale multi-center studies would be helpful to advance molecular characterization of these diseases at different stages of development and progression.
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Affiliation(s)
- Jixia Li
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Department of Laboratory Medicine, School of Medicine, Foshan University, Foshan, China
- *Correspondence: Jixia Li, ; Maggie L. Kalev-Zylinska,
| | - Maggie L. Kalev-Zylinska
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Haematology Laboratory, Department of Pathology and Laboratory Medicine, Auckland City Hospital, Auckland, New Zealand
- *Correspondence: Jixia Li, ; Maggie L. Kalev-Zylinska,
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25
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Downes CEJ, McClure BJ, McDougal DP, Heatley SL, Bruning JB, Thomas D, Yeung DT, White DL. JAK2 Alterations in Acute Lymphoblastic Leukemia: Molecular Insights for Superior Precision Medicine Strategies. Front Cell Dev Biol 2022; 10:942053. [PMID: 35903543 PMCID: PMC9315936 DOI: 10.3389/fcell.2022.942053] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, arising from immature lymphocytes that show uncontrolled proliferation and arrested differentiation. Genomic alterations affecting Janus kinase 2 (JAK2) correlate with some of the poorest outcomes within the Philadelphia-like subtype of ALL. Given the success of kinase inhibitors in the treatment of chronic myeloid leukemia, the discovery of activating JAK2 point mutations and JAK2 fusion genes in ALL, was a breakthrough for potential targeted therapies. However, the molecular mechanisms by which these alterations activate JAK2 and promote downstream signaling is poorly understood. Furthermore, as clinical data regarding the limitations of approved JAK inhibitors in myeloproliferative disorders matures, there is a growing awareness of the need for alternative precision medicine approaches for specific JAK2 lesions. This review focuses on the molecular mechanisms behind ALL-associated JAK2 mutations and JAK2 fusion genes, known and potential causes of JAK-inhibitor resistance, and how JAK2 alterations could be targeted using alternative and novel rationally designed therapies to guide precision medicine approaches for these high-risk subtypes of ALL.
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Affiliation(s)
- Charlotte EJ. Downes
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Barbara J. McClure
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Daniel P. McDougal
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, SA, Australia
- Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, SA, Australia
| | - Susan L. Heatley
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Australian and New Zealand Children’s Oncology Group (ANZCHOG), Clayton, VIC, Australia
| | - John B. Bruning
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, SA, Australia
- Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, SA, Australia
| | - Daniel Thomas
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - David T. Yeung
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Department of Haematology, Royal Adelaide Hospital and SA Pathology, Adelaide, SA, Australia
| | - Deborah L. White
- Blood Cancer Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Australian and New Zealand Children’s Oncology Group (ANZCHOG), Clayton, VIC, Australia
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26
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Mori Y, Araki M, Morishita S, Imai M, Edahiro Y, Ito M, Ochiai T, Shirane S, Hashimoto Y, Yasuda H, Ando J, Ando M, Komatsu N. Clinical features of acquired erythrocytosis: Low levels of serum erythropoietin in a subset of non-neoplastic erythrocytosis patients. Cancer Med 2022; 12:1079-1089. [PMID: 35775283 PMCID: PMC9883404 DOI: 10.1002/cam4.4958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/17/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Acquired erythrocytosis can be classified into polycythemia vera (PV) and non-neoplastic erythrocytosis (NNE). The vast majority of PV patients harbor JAK2 mutations, but differentiating JAK2 mutation-negative PV from NNE is challenging due to a lack of definitive molecular markers. METHODS We studied the clinical features of 121 patients with erythrocytosis of which 47 (38.8%) were JAK2 mutation-positive and also fulfilled the diagnostic criteria for PV, and 67 (55.4%) JAK2 mutation-negative erythrocytosis patients who were diagnosed as NNE. Diagnosis was strictly based on driver mutation analysis and central pathology review. RESULTS No JAK2 mutation-negative PV patients were found in our cohort. The NNE group showed significantly younger (p < 0.01) age with higher frequency of smoking (p < 0.001), alcohol consumption (p < 0.001), and diabetes mellitus (p < 0.05), whereas the PV group (n = 47) showed significantly higher white blood cell count, platelet count, and lactate dehydrogenase (p < 0.001). Although serum erythropoietin (EPO) levels were significantly higher in NNE compared to PV (p < 0.001), approximately 40% of the NNE patients had EPO levels below the lower range of normal, fulfilling a minor diagnostic criterion of PV and raising the possibility of PV misdiagnosis. CONCLUSION Low EPO levels in JAK2 mutation-negative erythrocytosis may not be a reliable diagnostic criterion for distinguishing PV from NNE.
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Affiliation(s)
- Yosuke Mori
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Marito Araki
- Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Soji Morishita
- Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Misa Imai
- Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan
| | - Yoko Edahiro
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Masafumi Ito
- Department of PathologyJapanese Red Cross Aichi Medical Center Nagoya Daiichi HospitalNagoyaJapan
| | - Tomonori Ochiai
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Shuichi Shirane
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Yoshinori Hashimoto
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Hajime Yasuda
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Jun Ando
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Department of Cell Therapy and Transfusion MedicineJuntendo University Graduate School of MedicineTokyoJapan
| | - Miki Ando
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Norio Komatsu
- Department of HematologyJuntendo University Graduate School of MedicineTokyoJapan,Laboratory for the Development of Therapies Against MPNJuntendo University Graduate School of MedicineTokyoJapan,Department of Advanced HematologyJuntendo University Graduate School of MedicineTokyoJapan,PharmaEssentia Japan KKTokyoJapan
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27
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Wang LN, Zhang ZT, Wang L, Wei HX, Zhang T, Zhang LM, Lin H, Zhang H, Wang SQ. TGF-β1/SH2B3 axis regulates anoikis resistance and EMT of lung cancer cells by modulating JAK2/STAT3 and SHP2/Grb2 signaling pathways. Cell Death Dis 2022; 13:472. [PMID: 35589677 PMCID: PMC9120066 DOI: 10.1038/s41419-022-04890-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 04/13/2022] [Accepted: 04/26/2022] [Indexed: 12/14/2022]
Abstract
The pathogenesis of lung cancer, the most common cancer, is complex and unclear, leading to limited treatment options and poor prognosis. To provide molecular insights into lung cancer development, we investigated the function and underlying mechanism of SH2B3 in the regulation of lung cancer. We indicated SH2B3 was diminished while TGF-β1 was elevated in lung cancer tissues and cells. Low SH2B3 level was correlated with poor prognosis of lung cancer patients. SH2B3 overexpression suppressed cancer cell anoikis resistance, proliferation, migration, invasion, and EMT, while TGF-β1 promoted those processes via reducing SH2B3. SH2B3 bound to JAK2 and SHP2 to repress JAK2/STAT3 and SHP2/Grb2/PI3K/AKT signaling pathways, respectively, resulting in reduced cancer cell anoikis resistance, proliferation, migration, invasion, and EMT. Overexpression of SH2B3 suppressed lung cancer growth and metastasis in vivo. In conclusion, SH2B3 restrained the development of anoikis resistance and EMT of lung cancer cells via suppressing JAK2/STAT3 and SHP2/Grb2/PI3K/AKT signaling cascades, leading to decreased cancer cell proliferation, migration, and invasion.
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Affiliation(s)
- Li-Na Wang
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China ,grid.449428.70000 0004 1797 7280Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
| | - Zi-Teng Zhang
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
| | - Li Wang
- grid.452708.c0000 0004 1803 0208Department of Thoracic Surgery, The Second Xiangya Hospital of Central South University, 410011 Changsha, Hunan Province P. R. China ,grid.452708.c0000 0004 1803 0208Hunan Key Laboratory of Early Diagnosis and Precise Treatment of Lung Cancer, The Second Xiangya Hospital of Central South University, 410011 Changsha, Hunan Province P. R. China
| | - Hai-Xiang Wei
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
| | - Tao Zhang
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
| | - Li-Ming Zhang
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
| | - Hang Lin
- grid.452223.00000 0004 1757 7615Department of General Thoracic Surgery, Xiangya Hospital, Central South University, 410008 Changsha, Hunan Province P. R. China
| | - Heng Zhang
- grid.452223.00000 0004 1757 7615Department of General Thoracic Surgery, Xiangya Hospital, Central South University, 410008 Changsha, Hunan Province P. R. China ,grid.216417.70000 0001 0379 7164Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, 410008 Changsha, Hunan Province P. R. China ,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, 410008 Changsha, Hunan Province P. R. China ,grid.452223.00000 0004 1757 7615National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, P. R. China
| | - Shao-Qiang Wang
- grid.449428.70000 0004 1797 7280Department of Thoracic Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, 272029 Jining, Shandong Province P. R. China
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Genetic Background of Polycythemia Vera. Genes (Basel) 2022; 13:genes13040637. [PMID: 35456443 PMCID: PMC9027017 DOI: 10.3390/genes13040637] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/25/2022] [Accepted: 03/26/2022] [Indexed: 02/06/2023] Open
Abstract
Polycythemia vera belongs to myeloproliferative neoplasms, essentially by affecting the erythroblastic lineage. JAK2 alterations have emerged as major driver mutations triggering PV-phenotype with the V617F mutation detected in nearly 98% of cases. That’s why JAK2 targeting therapeutic strategies have rapidly emerged to counter the aggravation of the disease. Over decades of research, to go further in the understanding of the disease and its evolution, a wide panel of genetic alterations affecting multiple genes has been highlighted. These are mainly involved in alternative splicing, epigenetic, miRNA regulation, intracellular signaling, and transcription factors expression. If JAK2 mutation, irrespective of the nature of the alteration, is known to be a crucial event for the disease to initiate, additional mutations seem to be markers of progression and poor prognosis. These discoveries have helped to characterize the complex genomic landscape of PV, resulting in potentially new adapted therapeutic strategies for patients concerning all the genetic interferences.
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Shyamala N, Kongettira CL, Puranam K, Kupsal K, Kummari R, Padala C, Hanumanth SR. In silico identification of single nucleotide variations at CpG sites regulating CpG island existence and size. Sci Rep 2022; 12:3574. [PMID: 35246549 PMCID: PMC8897451 DOI: 10.1038/s41598-022-05198-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 01/03/2022] [Indexed: 12/20/2022] Open
Abstract
Genetic and epigenetic modifications of genes involved in the key regulatory pathways play a significant role in the pathophysiology and progression of multifactorial diseases. The present study is an attempt to identify single nucleotide variations (SNVs) at CpG sites of promoters of ACAT1, APOB, APOE, CYBA, FAS, FLT1, KSR2, LDLR, MMP9, PCSK9, PHOX2A, REST, SH2B3, SORT1 and TIMP1 genes influencing CpG island (CGI) existence and size associated with the pathophysiology of Diabetes mellitus, Coronary artery disease and Cancers. Promoter sequences located between -2000 to + 2000 bp were retrieved from the EPDnew database and predicted the CpG island using MethPrimer. Further, SNVs at CpG sites were accessed from NCBI, Ensembl while transcription factor (TF) binding sites were accessed using AliBaba2.1. CGI existence and size were determined for each SNV at CpG site with respect to wild type and variant allele by MethPrimer. A total of 200 SNVs at CpG sites were analyzed from the promoters of ACAT1, APOB, APOE, CYBA, FAS, FLT1, KSR2, LDLR, MMP9, PCSK9, PHOX2A, REST, SH2B3, SORT1 and TIMP1 genes. Of these, only 17 (8.5%) SNVs were found to influence the loss of CGI while 70 (35%) SNVs were found to reduce the size of CGI. It has also been found that 59% (10) of CGI abolishing SNVs are showing differences in binding of TFs. The findings of the study suggest that the candidate SNVs at CpG sites regulating CGI existence and size might influence the DNA methylation status and expression of genes involved in molecular pathways associated with several diseases. The insights of the present study may pave the way for new experimental studies to undertake challenges in DNA methylation, gene expression and protein assays.
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Affiliation(s)
- Nivas Shyamala
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
| | - Chaitra Lava Kongettira
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
| | - Kaushik Puranam
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
| | - Keerthi Kupsal
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
| | - Ramanjaneyulu Kummari
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
| | - Chiranjeevi Padala
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, Telangana State, India
| | - Surekha Rani Hanumanth
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, 500007, Telangana State, India.
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The Missing LNK: Evolution from Cytosis to Chronic Myelomonocytic Leukemia in a Patient with Multiple Sclerosis and Germline SH2B3 Mutation. Case Rep Genet 2022; 2022:6977041. [PMID: 35281324 PMCID: PMC8904908 DOI: 10.1155/2022/6977041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/27/2022] [Indexed: 11/18/2022] Open
Abstract
Chronic myelomonocytic leukemia (CMML) is a rare but distinct hematological neoplasm with overlapping features of myelodysplastic syndrome (MDS) and myeloproliferative neoplasm (MPN). Individuals with CMML have persistent monocytosis and bone marrow dyspoiesis associated with various constitutional symptoms like fevers, unintentional weight loss, or night sweats. It is established that there is a strong association of CMML with preceding or coexisting autoimmune diseases and systemic inflammatory syndromes affecting around 20% of patients. Various molecular abnormalities like TET2, SRSF2, ASXL1, and RAS are reported in the pathogenesis of CMML, but no such mutations have been described to explain the strong association of autoimmune diseases and severe inflammatory phenotype seen in CMML. Germline mutation in SH2B adaptor protein 3 (SH2B3) had been reported before to affect a family with autoimmune disorders and acute lymphoblastic leukemia. In this report, we describe the first case of a female subject with many years of preceding history of multiple sclerosis before the diagnosis of CMML. We outline the evidence supporting the pathogenic role of SH2B3 p.E395K germline mutation, connecting the dots of association between autoimmune diseases and CMML genesis.
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Bader MS, Meyer SC. JAK2 in Myeloproliferative Neoplasms: Still a Protagonist. Pharmaceuticals (Basel) 2022; 15:ph15020160. [PMID: 35215273 PMCID: PMC8874480 DOI: 10.3390/ph15020160] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 02/01/2023] Open
Abstract
The discovery of the activating V617F mutation in Janus kinase 2 (JAK2) has been decisive for the understanding of myeloproliferative neoplasms (MPN). Activated JAK2 signaling by JAK2, CALR, and MPL mutations has become a focus for the development of targeted therapies for patients with MPN. JAK2 inhibitors now represent a standard of clinical care for certain forms of MPN and offer important benefits for MPN patients. However, several key aspects remain unsolved regarding the targeted therapy of MPN with JAK2 inhibitors, such as reducing the MPN clone and how to avoid or overcome a loss of response. Here, we summarize the current knowledge on the structure and signaling of JAK2 as central elements of MPN pathogenesis and feature benefits and limitations of therapeutic JAK2 targeting in MPN.
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Affiliation(s)
| | - Sara Christina Meyer
- Division of Hematology, University Hospital Basel, CH-4031 Basel, Switzerland;
- Department of Biomedicine, University Hospital Basel and University of Basel, CH-4031 Basel, Switzerland
- Correspondence:
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Wang L, Chen S, Shen Y, Si P. BCORL1 S878G, GNB1 G116S, SH2B3 A536T, and KMT2D S3708R tetramutation co-contribute to a pediatric acute myeloid leukemia: Case report and literature review. Front Pediatr 2022; 10:993952. [PMID: 36324816 PMCID: PMC9618691 DOI: 10.3389/fped.2022.993952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022] Open
Abstract
Acute myeloid leukemia (AML) is a clinically, morphologically, and genetically heterogeneous group of malignancies characterized by a wide range of genomic alterations responsible for defective regulation of the differentiation and self-renewal programs of hematopoietic stem cells. Here, we report a 4-month-old boy who had acute onset with leukocytosis and abdominal mass. The morphological analysis of bone marrow (BM) smear revealed extremely marrow hyperplasia, large quantities of immature cells, and primary and immature monocytic hyperplasia accounting for 57.5% of nucleated cells. The chromosome karyotype of the case was complex, representing 48, XY, +13, +19[12]/48, idem, del (p12)[8]. After RNAs sequencing, a mutation (c.346G > A, p.G116S) of the GNB1 gene was detected and localized to the mutational hotspot in Exon 7. Meanwhile, the other three mutations were identified by next-generation sequencing (NGS) and whole-exome sequencing (WES) of DNA from the BM aspirate and oral swab, including BCORL1 mutation [c.2632A > G, p.S878G, mutation allele frequency (VAF): 99.95%], SH2B3 mutation (c.1606G > A, p.A536T, VAF: 51.17%), and KMT2D mutation (c.11124C > G, p.S3708R, VAF: 48.95%). BCORL1 mutations have been associated with the pathogenesis of AML, whereas other mutations have rarely been previously reported in pediatric AML. The patient did not undergo the combination chemotherapy and eventually died of respiratory failure. In conclusion, the concurrence of BCORL1, GNB1, SH2B3, and KMT2D mutations may be a mutationally detrimental combination and contribute to disease progression.
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Affiliation(s)
- Liang Wang
- Department of Clinical Laboratory, Tianjin Children's Hospital/Children's Hospital of Tianjin University, Tianjin, China
| | - Sen Chen
- Department of Hematology, Tianjin Children's Hospital/Children's Hospital of Tianjin University, Tianjin, China
| | - Yongming Shen
- Department of Clinical Laboratory, Tianjin Children's Hospital/Children's Hospital of Tianjin University, Tianjin, China
| | - Ping Si
- Department of Clinical Laboratory, Tianjin Children's Hospital/Children's Hospital of Tianjin University, Tianjin, China
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Morris R, Butler L, Perkins A, Kershaw NJ, Babon JJ. The Role of LNK (SH2B3) in the Regulation of JAK-STAT Signalling in Haematopoiesis. Pharmaceuticals (Basel) 2021; 15:ph15010024. [PMID: 35056081 PMCID: PMC8781068 DOI: 10.3390/ph15010024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 01/05/2023] Open
Abstract
LNK is a member of the SH2B family of adaptor proteins and is a non-redundant regulator of cytokine signalling. Cytokines are secreted intercellular messengers that bind to specific receptors on the surface of target cells to activate the Janus Kinase-Signal Transducer and Activator of Transcription (JAK-STAT) signalling pathway. Activation of the JAK-STAT pathway leads to proliferative and often inflammatory effects, and so the amplitude and duration of signalling are tightly controlled. LNK binds phosphotyrosine residues to signalling proteins downstream of cytokines and constrains JAK-STAT signalling. Mutations in LNK have been identified in a range of haematological and inflammatory diseases due to increased signalling following the loss of LNK function. Here, we review the regulation of JAK-STAT signalling via the adaptor protein LNK and discuss the role of LNK in haematological diseases.
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Affiliation(s)
- Rhiannon Morris
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (R.M.); (N.J.K.)
- Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Liesl Butler
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3001, Australia; (L.B.); (A.P.)
- Alfred Health, Melbourne, VIC 3001, Australia
| | - Andrew Perkins
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3001, Australia; (L.B.); (A.P.)
- Alfred Health, Melbourne, VIC 3001, Australia
| | - Nadia J. Kershaw
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (R.M.); (N.J.K.)
- Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Jeffrey J. Babon
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (R.M.); (N.J.K.)
- Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
- Correspondence: ; Tel.: +61-3-9345-2960; Fax: +61-3-9347-0852
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NGS Evaluation of a Bernese Cohort of Unexplained Erythrocytosis Patients. Genes (Basel) 2021; 12:genes12121951. [PMID: 34946900 PMCID: PMC8701725 DOI: 10.3390/genes12121951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/23/2021] [Accepted: 12/01/2021] [Indexed: 01/06/2023] Open
Abstract
(1) Background: Clinical and molecular data on patients with unexplained erythrocyto-sis is sparse. We aimed to analyze the clinical and molecular features of patients with congenital erythrocytosis in our tertiary reference center. (2) Methods: In 34 patients with unexplained erythrocytosis, a 13-gene Next-Generation Sequencing erythrocytosis panel developed at our center was conducted. (3) Results: In 6/34 (18%) patients, eight different heterozygous gene variants were found. These patients were, therefore, diagnosed with congenital erythrocytosis. Two patients had two different gene variants each. All variants were characterized as variants of unknown significance as they had not previously been described in the literature. The rest of the patients (28/34, 82%) had no detected gene variants. (4) Conclusions: Our experience shows that the NGS panel can be helpful in determining the reasons for persistent, unexplained erythrocytosis. In our cohort of patients with erythrocytosis, we identified some, thus far unknown, gene variants which may explain the clinical picture. However, further investigations are needed to determine the relationship between the molecular findings and the phenotype.
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Allenspach EJ, Shubin NJ, Cerosaletti K, Mikacenic C, Gorman JA, MacQuivey MA, Rosen AB, Timms AE, Wray-Dutra MN, Niino K, Liggitt D, Wurfel MM, Buckner JH, Piliponsky AM, Rawlings DJ. The Autoimmune Risk R262W Variant of the Adaptor SH2B3 Improves Survival in Sepsis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:2710-2719. [PMID: 34740959 PMCID: PMC8612972 DOI: 10.4049/jimmunol.2100454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022]
Abstract
The single-nucleotide polymorphism (SNP) rs3184504 is broadly associated with increased risk for multiple autoimmune and cardiovascular diseases. Although the allele is uniquely enriched in European descent, the mechanism for the widespread selective sweep is not clear. In this study, we find the rs3184504*T allele had a strong association with reduced mortality in a human sepsis cohort. The rs3184504*T allele associates with a loss-of-function amino acid change (p.R262W) in the adaptor protein SH2B3, a likely causal variant. To better understand the role of SH2B3 in sepsis, we used mouse modeling and challenged SH2B3-deficient mice with a polymicrobial cecal-ligation puncture (CLP) procedure. We found SH2B3 deficiency improved survival and morbidity with less organ damage and earlier bacterial clearance compared with control mice. The peritoneal infiltrating cells exhibited augmented phagocytosis in Sh2b3 -/- mice with enriched recruitment of Ly6Chi inflammatory monocytes despite equivalent or reduced chemokine expression. Rapid cycling of monocytes and progenitors occurred uniquely in the Sh2b3 -/- mice following CLP, suggesting augmented myelopoiesis. To model the hypomorphic autoimmune risk allele, we created a novel knockin mouse harboring a similar point mutation in the murine pleckstrin homology domain of SH2B3. At baseline, phenotypic changes suggested a hypomorphic allele. In the CLP model, homozygous knockin mice displayed improved mortality and morbidity compared with wild-type or heterozygous mice. Collectively, these data suggest that hypomorphic SH2B3 improves the sepsis response and that balancing selection likely contributed to the relative frequency of the autoimmune risk variant.
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Affiliation(s)
- Eric J. Allenspach
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA,Department of Pediatrics, University of Washington, Seattle, Washington, USA
| | - Nicholas J. Shubin
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Karen Cerosaletti
- Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - Carmen Mikacenic
- Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA,Department of Medicine, Division of Pulmonary and Critical Care, University of Washington, Seattle, Washington, USA
| | - Jacquelyn A Gorman
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Matthew A. MacQuivey
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Aaron B.I. Rosen
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Andrew E. Timms
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Michelle N. Wray-Dutra
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Kerri Niino
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Denny Liggitt
- Department of Comparative Medicine, University of Washington, Seattle, Washington, USA
| | - Mark M. Wurfel
- Department of Medicine, Division of Pulmonary and Critical Care, University of Washington, Seattle, Washington, USA
| | - Jane H. Buckner
- Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA,Department of Immunology, University of Washington, Seattle, Washington, USA
| | - Adrian M. Piliponsky
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA,Departments of Pediatrics, Pathology and Global Health, University of Washington School of Medicine, Seattle, Washington, USA
| | - David J. Rawlings
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, Washington, USA,Department of Pediatrics, University of Washington, Seattle, Washington, USA,Department of Immunology, University of Washington, Seattle, Washington, USA,Correspondence should be addressed to D.J.R. () and E.J.A. ()
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Salybekov AA, Wolfien M, Kobayashi S, Steinhoff G, Asahara T. Personalized Cell Therapy for Patients with Peripheral Arterial Diseases in the Context of Genetic Alterations: Artificial Intelligence-Based Responder and Non-Responder Prediction. Cells 2021; 10:3266. [PMID: 34943774 PMCID: PMC8699290 DOI: 10.3390/cells10123266] [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: 10/21/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 01/14/2023] Open
Abstract
Stem/progenitor cell transplantation is a potential novel therapeutic strategy to induce angiogenesis in ischemic tissue, which can prevent major amputation in patients with advanced peripheral artery disease (PAD). Thus, clinicians can use cell therapies worldwide to treat PAD. However, some cell therapy studies did not report beneficial outcomes. Clinical researchers have suggested that classical risk factors and comorbidities may adversely affect the efficacy of cell therapy. Some studies have indicated that the response to stem cell therapy varies among patients, even in those harboring limited risk factors. This suggests the role of undetermined risk factors, including genetic alterations, somatic mutations, and clonal hematopoiesis. Personalized stem cell-based therapy can be developed by analyzing individual risk factors. These approaches must consider several clinical biomarkers and perform studies (such as genome-wide association studies (GWAS)) on disease-related genetic traits and integrate the findings with those of transcriptome-wide association studies (TWAS) and whole-genome sequencing in PAD. Additional unbiased analyses with state-of-the-art computational methods, such as machine learning-based patient stratification, are suited for predictions in clinical investigations. The integration of these complex approaches into a unified analysis procedure for the identification of responders and non-responders before stem cell therapy, which can decrease treatment expenditure, is a major challenge for increasing the efficacy of therapies.
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Affiliation(s)
- Amankeldi A. Salybekov
- Kidney Disease and Transplant Center, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan;
- Shonan Research Institute of Innovative Medicine, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan
| | - Markus Wolfien
- Department of Systems Biology and Bioinformatics, University of Rostock, Ulmenstrasse 69, 18057 Rostock, Germany;
| | - Shuzo Kobayashi
- Kidney Disease and Transplant Center, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan;
- Shonan Research Institute of Innovative Medicine, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan
| | - Gustav Steinhoff
- Department of Cardiac Surgery, Rostock University Medical Center, 18059 Rostock, Germany;
- Department Life, Light & Matter, University of Rostock, 18057 Rostock, Germany
| | - Takayuki Asahara
- Shonan Research Institute of Innovative Medicine, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan
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Pizzi M, Croci GA, Ruggeri M, Tabano S, Dei Tos AP, Sabattini E, Gianelli U. The Classification of Myeloproliferative Neoplasms: Rationale, Historical Background and Future Perspectives with Focus on Unclassifiable Cases. Cancers (Basel) 2021; 13:cancers13225666. [PMID: 34830822 PMCID: PMC8616346 DOI: 10.3390/cancers13225666] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 01/11/2023] Open
Abstract
Simple Summary Myeloproliferative neoplasms (MPNs) are clonal hematological disorders, characterized by increased proliferation of the myeloid lineages in the bone marrow. Since their original recognition by William Damashek in 1951, MPNs have been extensively investigated at a clinical-pathological and molecular level. This prompted a progressive refinement of their classification and diagnostic criteria. Uncertainties nonetheless remain in a small (yet consistent) subset of cases, characterized by unconventional and/or overlapping clinical-pathological features. Such cases (referred to as MPN, unclassifiable [MPN-U]) encompass a broad spectrum of entities, including early phase MPNs, terminal (i.e., fibrotic) MPNs, MPNs associated with inflammatory or neoplastic disorders, and poorly characterized MPNs with clinical-pathological mismatch or atypical molecular features. In this review, we discuss the rationale behind the classification and diagnostic criteria of MPNs, focusing on the still open issues concerning MPN-U. Abstract Myeloproliferative neoplasms (MPNs) are a heterogeneous group of clonal hematopoietic stem cell disorders, characterized by increased proliferation of one or more myeloid lineages in the bone marrow. The classification and diagnostic criteria of MPNs have undergone relevant changes over the years, reflecting the increased awareness on these conditions and a better understanding of their biological and clinical-pathological features. The current World Health Organization (WHO) Classification acknowledges four main sub-groups of MPNs: (i) Chronic Myeloid Leukemia; (ii) classical Philadelphia-negative MPNs (Polycythemia Vera; Essential Thrombocythemia; Primary Myelofibrosis); (iii) non-classical Philadelphia-negative MPNs (Chronic Neutrophilic Leukemia; Chronic Eosinophilic Leukemia); and (iv) MPNs, unclassifiable (MPN-U). The latter are currently defined as MPNs with clinical-pathological findings not fulfilling the diagnostic criteria for any other entity. The MPN-U spectrum traditionally encompasses early phase MPNs, terminal (i.e., advanced fibrotic) MPNs, and cases associated with inflammatory or neoplastic disorders that obscure the clinical-histological picture. Several lines of evidence and clinical practice suggest the existence of additional myeloid neoplasms that may expand the spectrum of MPN-U. To gain insight into such disorders, this review addresses the history of MPN classification, the evolution of their diagnostic criteria and the complex clinical-pathological and biological features of MPN-U.
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Affiliation(s)
- Marco Pizzi
- Surgical Pathology and Cytopathology Unit, Department of Medicine—DIMED, University of Padua, 35128 Padua, Italy;
- Correspondence:
| | - Giorgio Alberto Croci
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy; (G.A.C.); (U.G.)
- Division of Pathology, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Marco Ruggeri
- Department of Hematology, San Bortolo Hospital, 36100 Vicenza, Italy;
| | - Silvia Tabano
- Laboratory of Medical Genetics, Foundation IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Angelo Paolo Dei Tos
- Surgical Pathology and Cytopathology Unit, Department of Medicine—DIMED, University of Padua, 35128 Padua, Italy;
| | - Elena Sabattini
- Haematopathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Umberto Gianelli
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy; (G.A.C.); (U.G.)
- Division of Pathology, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
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Easwar A, Siddon AJ. Genetic Landscape of Myeloproliferative Neoplasms with an Emphasis on Molecular Diagnostic Laboratory Testing. Life (Basel) 2021; 11:1158. [PMID: 34833034 PMCID: PMC8625510 DOI: 10.3390/life11111158] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 12/27/2022] Open
Abstract
Chronic myeloproliferative neoplasms (MPNs) are hematopoietic stem cell neoplasms with driver events including the BCR-ABL1 translocation leading to a diagnosis of chronic myeloid leukemia (CML), or somatic mutations in JAK2, CALR, or MPL resulting in Philadelphia-chromosome-negative MPNs with constitutive activation of the JAK-STAT signaling pathway. In the Philadelphia-chromosome-negative MPNs, modern sequencing panels have identified a vast molecular landscape including additional mutations in genes involved in splicing, signal transduction, DNA methylation, and chromatin modification such as ASXL1, SF3B1, SRSF2, and U2AF1. These additional mutations often influence prognosis in MPNs and therefore are increasingly important for risk stratification. This review focuses on the molecular alterations within the WHO classification of MPNs and laboratory testing used for diagnosis.
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Affiliation(s)
- Arti Easwar
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT 06510, USA;
| | - Alexa J. Siddon
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT 06510, USA;
- Department of Pathology, Yale School of Medicine, New Haven, CT 06510, USA
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Coltro G, Loscocco GG, Vannucchi AM. Classical Philadelphia-negative myeloproliferative neoplasms (MPNs): A continuum of different disease entities. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021; 365:1-69. [PMID: 34756241 DOI: 10.1016/bs.ircmb.2021.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Classical Philadelphia-negative myeloproliferative neoplasms (MPNs) are clonal hematopoietic stem cell-derived disorders characterized by uncontrolled proliferation of differentiated myeloid cells and close pathobiologic and clinical features. According to the 2016 World Health Organization (WHO) classification, MPNs include polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). The 2016 revision aimed in particular at strengthening the distinction between masked PV and JAK2-mutated ET, and between prefibrotic/early (pre-PMF) and overt PMF. Clinical manifestations in MPNs include constitutional symptoms, microvascular disorders, thrombosis and bleeding, splenomegaly secondary to extramedullary hematopoiesis, cytopenia-related symptoms, and progression to overt MF and acute leukemia. A dysregulation of the JAK/STAT pathway is the unifying mechanistic hallmark of MPNs, and is guided by somatic mutations in driver genes including JAK2, CALR and MPL. Additional mutations in myeloid neoplasm-associated genes have been also identified, with established prognostic relevance, particularly in PMF. Prognostication of MPN patients relies on disease-specific clinical models. The increasing knowledge of MPN biology led to the development of integrated clinical and molecular prognostic scores that allow a more refined stratification. Recently, the therapeutic landscape of MPNs has been revolutionized by the introduction of potent, selective JAK inhibitors (ruxolitinib, fedratinib), that proved effective in controlling disease-related symptoms and splenomegaly, yet leaving unmet critical needs, owing the lack of disease-modifying activity. In this review, we will deal with molecular, clinical, and therapeutic aspects of the three classical MPNs aiming at highlighting either shared characteristics, that overall define a continuum within a single disease family, and uniqueness, at the same time.
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Affiliation(s)
- Giacomo Coltro
- CRIMM, Center for Research and Innovation of Myeloproliferative Neoplasms, AOU Careggi, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Giuseppe G Loscocco
- CRIMM, Center for Research and Innovation of Myeloproliferative Neoplasms, AOU Careggi, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Alessandro M Vannucchi
- CRIMM, Center for Research and Innovation of Myeloproliferative Neoplasms, AOU Careggi, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
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Nf1 and Sh2b3 mutations cooperate in vivo in a mouse model of juvenile myelomonocytic leukemia. Blood Adv 2021; 5:3587-3591. [PMID: 34464969 DOI: 10.1182/bloodadvances.2020003754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/09/2021] [Indexed: 11/20/2022] Open
Abstract
Juvenile myelomonocytic leukemia (JMML) is initiated in early childhood by somatic mutations that activate Ras signaling. Although some patients have only a single identifiable oncogenic mutation, others have 1 or more additional alterations. Such secondary mutations, as a group, are associated with an increased risk of relapse after hematopoietic stem cell transplantation or transformation to acute myeloid leukemia. These clinical observations suggest a cooperative effect between initiating and secondary mutations. However, the roles of specific genes in the prognosis or clinical presentation of JMML have not been described. In this study, we investigate the impact of secondary SH2B3 mutations in JMML. We find that patients with SH2B3 mutations have adverse outcomes, as well as higher white blood cell counts and hemoglobin F levels in the peripheral blood. We further demonstrate this interaction in genetically engineered mice. Deletion of Sh2b3 cooperates with conditional Nf1 deletion in a dose-dependent fashion. These studies illustrate that haploinsufficiency for Sh2b3 contributes to the severity of myeloproliferative disease and provide an experimental system for testing treatments for a high-risk cohort of JMML patients.
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Abstract
Clonal haematopoiesis (CH) is a common, age-related expansion of blood cells with somatic mutations that is associated with an increased risk of haematological malignancies, cardiovascular disease and all-cause mortality. CH may be caused by point mutations in genes associated with myeloid neoplasms, chromosomal copy number changes and loss of heterozygosity events. How inherited and environmental factors shape the incidence of CH is incompletely understood. Even though the several varieties of CH may have distinct phenotypic consequences, recent research points to an underlying genetic architecture that is highly overlapping. Moreover, there are numerous commonalities between the inherited variation associated with CH and that which has been linked to age-associated biomarkers and diseases. In this Review, we synthesize what is currently known about how inherited variation shapes the risk of CH and how this genetic architecture intersects with the biology of diseases that occur with ageing.
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Affiliation(s)
- Alexander J Silver
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Alexander G Bick
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
- Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
- Center for Immunobiology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Michael R Savona
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Center for Immunobiology, Vanderbilt University School of Medicine, Nashville, TN, USA.
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42
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Sadigh S, Kim AS. Molecular Pathology of Myeloid Neoplasms: Molecular Pattern Recognition. Surg Pathol Clin 2021; 14:517-528. [PMID: 34373100 DOI: 10.1016/j.path.2021.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Despite the apparent complexity of the molecular genetic underpinnings of myeloid neoplasms, most myeloid mutational profiles can be understood within a simple framework. Somatic mutations accumulate in hematopoietic stem cells with aging and toxic insults, termed clonal hematopoiesis. These "old stem cells" mutations, predominantly in the epigenetic and RNA spliceosome pathways, act as "founding" driver mutations leading to a clonal myeloid neoplasm when sufficient in number and clone size. Subsequent mutations can create the genetic flavor of the myeloid neoplasm ("backseat" drivers) due to their enrichment in certain entities or act as progression events ("aggressive" drivers) during clonal evolution.
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Affiliation(s)
- Sam Sadigh
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Annette S Kim
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
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43
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Ferrone CK, Wong H, Semenuk L, Werunga B, Snetsinger B, Zhang X, Zhang G, Lui J, Richard-Carpentier G, Crocker S, Good D, Hay AE, Quest G, Carson N, Feilotter HE, Rauh MJ. Validation, Implementation, and Clinical Impact of the Oncomine Myeloid Targeted-Amplicon DNA and RNA Ion Semiconductor Sequencing Assay. J Mol Diagn 2021; 23:1292-1305. [PMID: 34365012 DOI: 10.1016/j.jmoldx.2021.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 05/04/2021] [Accepted: 07/07/2021] [Indexed: 12/17/2022] Open
Abstract
The identification of clinically significant genes recurrently mutated in myeloid malignancies necessitates expanding diagnostic testing with higher throughput, such as targeted next-generation sequencing. We present validation of the Thermo Fisher Oncomine Myeloid Next-Generation Sequencing Panel (OMP), targeting 40 genes and 29 fusion drivers recurrently mutated in myeloid malignancies. The study includes data from a sample exchange between two Canadian hospitals demonstrating high concordance for detection of DNA and RNA aberrations. Clinical validation demonstrates high accuracy, sensitivity, and specificity of the OMP, with a lower limit of detection of 5% for single-nucleotide variants and 10% for insertions/deletions. Prospective sequencing was performed for 187 samples from 168 unique patients presenting with suspected or confirmed myeloid malignancy and other hematological conditions to assess clinical impact of identifying variants. Of detected variants, 48% facilitated or clarified diagnoses, 29% affected prognoses, and 25% had the potential to influence clinical management. Of note, OMP was essential to identifying patients with premalignant clonal states likely contributing to cytopenias. We also found that the detection of even a single variant by the OMP assay, versus 0 variants, was predictive of overall survival, independent of age, sex, or diagnosis (P = 0.03). This study demonstrates that molecular profiling of myeloid malignancies with the OMP represents a promising strategy to advance molecular diagnostics.
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Affiliation(s)
- Christina K Ferrone
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Henry Wong
- Molecular Genetics Laboratory, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Laura Semenuk
- Molecular Genetics Laboratory, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Barnaba Werunga
- Division of Genetics, Department of Lab Medicine and Pathology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Brooke Snetsinger
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Xiao Zhang
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Grace Zhang
- Division of Hematology, Department of Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Janet Lui
- Division of Hematology, Department of Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | | | - Susan Crocker
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Cytogenetics Laboratory, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - David Good
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Annette E Hay
- Division of Hematology, Department of Medicine, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Graeme Quest
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Nancy Carson
- Division of Genetics, Department of Lab Medicine and Pathology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Harriet E Feilotter
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Molecular Genetics Laboratory, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Michael J Rauh
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada.
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44
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The genetic architecture of plasma kynurenine includes cardiometabolic disease mechanisms associated with the SH2B3 gene. Sci Rep 2021; 11:15652. [PMID: 34341450 PMCID: PMC8329184 DOI: 10.1038/s41598-021-95154-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/21/2021] [Indexed: 01/11/2023] Open
Abstract
Inflammation increases the risk of cardiometabolic disease. Delineating specific inflammatory pathways and biomarkers of their activity could identify the mechanistic underpinnings of the increased risk. Plasma levels of kynurenine, a metabolite involved in inflammation, associates with cardiometabolic disease risk. We used genetic approaches to identify inflammatory mechanisms associated with kynurenine variability and their relationship to cardiometabolic disease. We identified single-nucleotide polymorphisms (SNPs) previously associated with plasma kynurenine, including a missense-variant (rs3184504) in the inflammatory gene SH2B3/LNK. We examined the association between rs3184504 and plasma kynurenine in independent human samples, and measured kynurenine levels in SH2B3-knock-out mice and during human LPS-evoked endotoxemia. We conducted phenome scanning to identify clinical phenotypes associated with each kynurenine-related SNP and with a kynurenine polygenic score using the UK-Biobank (n = 456,422), BioVU (n = 62,303), and Electronic Medical Records and Genetics (n = 32,324) databases. The SH2B3 missense variant associated with plasma kynurenine levels and SH2B3−/− mice had significant tissue-specific differences in kynurenine levels.LPS, an acute inflammatory stimulus, increased plasma kynurenine in humans. Mendelian randomization showed increased waist-circumference, a marker of central obesity, associated with increased kynurenine, and increased kynurenine associated with C-reactive protein (CRP). We found 30 diagnoses associated (FDR q < 0.05) with the SH2B3 variant, but not with SNPs mapping to genes known to regulate tryptophan-kynurenine metabolism. Plasma kynurenine may be a biomarker of acute and chronic inflammation involving the SH2B3 pathways. Its regulation lies upstream of CRP, suggesting that kynurenine may be a biomarker of one inflammatory mechanism contributing to increased cardiometabolic disease risk.
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45
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Integration of Molecular Information in Risk Assessment of Patients with Myeloproliferative Neoplasms. Cells 2021; 10:cells10081962. [PMID: 34440731 PMCID: PMC8391705 DOI: 10.3390/cells10081962] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 12/30/2022] Open
Abstract
Philadelphia chromosome-negative myeloproliferative neoplasms (MPN) are clonal disorders of a hematopoietic stem cell, characterized by an abnormal proliferation of largely mature cells driven by mutations in JAK2, CALR, and MPL. All these mutations lead to a constitutive activation of the JAK-STAT signaling, which represents a target for therapy. Beyond driver ones, most patients, especially with myelofibrosis, harbor mutations in an array of "myeloid neoplasm-associated" genes that encode for proteins involved in chromatin modification and DNA methylation, RNA splicing, transcription regulation, and oncogenes. These additional mutations often arise in the context of clonal hematopoiesis of indeterminate potential (CHIP). The extensive characterization of the pathologic genome associated with MPN highlighted selected driver and non-driver mutations for their clinical informativeness. First, driver mutations are enlisted in the WHO classification as major diagnostic criteria and may be used for monitoring of residual disease after transplantation and response to treatment. Second, mutation profile can be used, eventually in combination with cytogenetic, histopathologic, hematologic, and clinical variables, to risk stratify patients regarding thrombosis, overall survival, and rate of transformation to secondary leukemia. This review outlines the molecular landscape of MPN and critically interprets current information for their potential impact on patient management.
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46
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McMullin MF. Genetic Background of Congenital Erythrocytosis. Genes (Basel) 2021; 12:genes12081151. [PMID: 34440325 PMCID: PMC8392557 DOI: 10.3390/genes12081151] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 01/14/2023] Open
Abstract
True erythrocytosis is present when the red cell mass is greater than 125% of predicted sex and body mass, which is reflected by elevated hemoglobin and hematocrit. Erythrocytosis can be primary or secondary and congenital or acquired. Congenital defects are often found in those diagnosed at a young age and with a family history of erythrocytosis. Primary congenital defects mainly include mutations in the Erythropoietin receptor gene but SH2B3 has also been implicated. Secondary congenital erythrocytosis can arise through a variety of genetic mechanisms, including mutations in the genes in the oxygen sensing pathway, with high oxygen affinity hemoglobin variants and mutations in other genes such as BPMG, where ultimately the production of erythropoietin is increased, resulting in erythrocytosis. Recently, mutations in PIEZ01 have been associated with erythrocytosis. In many cases, a genetic variant cannot be identified, leaving a group of patients with the label idiopathic erythrocytosis who should be the subject of future investigations. The clinical course in congenital erythrocytosis is hard to evaluate as these are rare cases. However, some of these patients may well present at a young age and with sometimes catastrophic thromboembolic events. There is little evidence to guide the management of congenital erythrocytosis but the use of venesection and low dose aspirin should be considered.
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47
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Kristan A, Pajič T, Maver A, Režen T, Kunej T, Količ R, Vuga A, Fink M, Žula Š, Podgornik H, Anžej Doma S, Preložnik Zupan I, Rozman D, Debeljak N. Identification of Variants Associated With Rare Hematological Disorder Erythrocytosis Using Targeted Next-Generation Sequencing Analysis. Front Genet 2021; 12:689868. [PMID: 34349782 PMCID: PMC8327209 DOI: 10.3389/fgene.2021.689868] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/16/2021] [Indexed: 12/28/2022] Open
Abstract
An erythrocytosis is present when the red blood cell mass is increased, demonstrated as elevated hemoglobin and hematocrit in the laboratory evaluation. Congenital predispositions for erythrocytosis are rare, with germline variants in several genes involved in oxygen sensing (VHL, EGLN1, and EPAS1), signaling for hematopoietic cell maturation (EPOR and EPO), and oxygen transfer (HBB, HBA1, HBA2, and BPGM) that were already associated with the eight congenital types (ECYT1–8). Screening for variants in known congenital erythrocytosis genes with classical sequencing approach gives a correct diagnosis for only up to one-third of the patients. The genetic background of erythrocytosis is more heterogeneous, and additional genes involved in erythropoiesis and iron metabolism could have a putative effect on the development of erythrocytosis. This study aimed to detect variants in patients with yet unexplained erythrocytosis using the next-generation sequencing (NGS) approach, targeting genes associated with erythrocytosis and increased iron uptake and implementing the diagnostics of congenital erythrocytosis in Slovenia. Selected 25 patients with high hemoglobin, high hematocrit, and no acquired causes were screened for variants in the 39 candidate genes. We identified one pathogenic variant in EPAS1 gene and three novel variants with yet unknown significance in genes EPAS1, JAK2, and SH2B3. Interestingly, a high proportion of patients were heterozygous carriers for two variants in HFE gene, otherwise pathogenic for the condition of iron overload. The association between the HFE variants and the development of erythrocytosis is not clearly understood. With a targeted NGS approach, we determined an actual genetic cause for the erythrocytosis in one patient and contributed to better management of the disease for the patient and his family. The effect of variants of unknown significance on the enhanced production of red blood cells needs to be further explored with functional analysis. This study is of great significance for the improvement of diagnosis of Slovenian patients with unexplained erythrocytosis and future research on the etiology of this rare hematological disorder.
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Affiliation(s)
- Aleša Kristan
- Medical Centre for Molecular Biology, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tadej Pajič
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Clinical Biochemistry, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Aleš Maver
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Tadeja Režen
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tanja Kunej
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Rok Količ
- Kemomed Research and Development, Kemomed Ltd., Ljubljana, Slovenia
| | - Andrej Vuga
- Kemomed Research and Development, Kemomed Ltd., Ljubljana, Slovenia
| | - Martina Fink
- Medical Centre for Molecular Biology, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Špela Žula
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Helena Podgornik
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Saša Anžej Doma
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Irena Preložnik Zupan
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Damjana Rozman
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Nataša Debeljak
- Medical Centre for Molecular Biology, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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48
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Shapiro MR, Thirawatananond P, Peters L, Sharp RC, Ogundare S, Posgai AL, Perry DJ, Brusko TM. De-coding genetic risk variants in type 1 diabetes. Immunol Cell Biol 2021; 99:496-508. [PMID: 33483996 PMCID: PMC8119379 DOI: 10.1111/imcb.12438] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/08/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022]
Abstract
The conceptual basis for a genetic predisposition underlying the risk for developing type 1 diabetes (T1D) predates modern human molecular genetics. Over half of the genetic risk has been attributed to the human leukocyte antigen (HLA) class II gene region and to the insulin (INS) gene locus - both thought to confer direction of autoreactivity and tissue specificity. Notwithstanding, questions still remain regarding the functional contributions of a vast array of minor polygenic risk variants scattered throughout the genome that likely influence disease heterogeneity and clinical outcomes. Herein, we summarize the available literature related to the T1D-associated coding variants defined at the time of this review, for the genes PTPN22, IFIH1, SH2B3, CD226, TYK2, FUT2, SIRPG, CTLA4, CTSH and UBASH3A. Data from genotype-selected human cohorts are summarized, and studies from the non-obese diabetic (NOD) mouse are presented to describe the functional impact of these variants in relation to innate and adaptive immunity as well as to β-cell fragility, with expression profiles in tissues and peripheral blood highlighted. The contribution of each variant to progression through T1D staging, including environmental interactions, are discussed with consideration of how their respective protein products may serve as attractive targets for precision medicine-based therapeutics to prevent or suspend the development of T1D.
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Affiliation(s)
- Melanie R Shapiro
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Puchong Thirawatananond
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Leeana Peters
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Robert C Sharp
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Similoluwa Ogundare
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Amanda L Posgai
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Daniel J Perry
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Todd M Brusko
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
- Department of Pediatrics, College of Medicine, Diabetes Institute, University of Florida, Gainesville, FL, 32610, USA
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49
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Smyth LJ, Kilner J, Nair V, Liu H, Brennan E, Kerr K, Sandholm N, Cole J, Dahlström E, Syreeni A, Salem RM, Nelson RG, Looker HC, Wooster C, Anderson K, McKay GJ, Kee F, Young I, Andrews D, Forsblom C, Hirschhorn JN, Godson C, Groop PH, Maxwell AP, Susztak K, Kretzler M, Florez JC, McKnight AJ. Assessment of differentially methylated loci in individuals with end-stage kidney disease attributed to diabetic kidney disease: an exploratory study. Clin Epigenetics 2021; 13:99. [PMID: 33933144 PMCID: PMC8088646 DOI: 10.1186/s13148-021-01081-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/15/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND A subset of individuals with type 1 diabetes mellitus (T1DM) are predisposed to developing diabetic kidney disease (DKD), the most common cause globally of end-stage kidney disease (ESKD). Emerging evidence suggests epigenetic changes in DNA methylation may have a causal role in both T1DM and DKD. The aim of this exploratory investigation was to assess differences in blood-derived DNA methylation patterns between individuals with T1DM-ESKD and individuals with long-duration T1DM but no evidence of kidney disease upon repeated testing to identify potential blood-based biomarkers. Blood-derived DNA from individuals (107 cases, 253 controls and 14 experimental controls) were bisulphite treated before DNA methylation patterns from both groups were generated and analysed using Illumina's Infinium MethylationEPIC BeadChip arrays (n = 862,927 sites). Differentially methylated CpG sites (dmCpGs) were identified (false discovery rate adjusted p ≤ × 10-8 and fold change ± 2) by comparing methylation levels between ESKD cases and T1DM controls at single site resolution. Gene annotation and functionality was investigated to enrich and rank methylated regions associated with ESKD in T1DM. RESULTS Top-ranked genes within which several dmCpGs were located and supported by functional data with methylation look-ups in other cohorts include: AFF3, ARID5B, CUX1, ELMO1, FKBP5, HDAC4, ITGAL, LY9, PIM1, RUNX3, SEPTIN9 and UPF3A. Top-ranked enrichment pathways included pathways in cancer, TGF-β signalling and Th17 cell differentiation. CONCLUSIONS Epigenetic alterations provide a dynamic link between an individual's genetic background and their environmental exposures. This robust evaluation of DNA methylation in carefully phenotyped individuals has identified biomarkers associated with ESKD, revealing several genes and implicated key pathways associated with ESKD in individuals with T1DM.
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Affiliation(s)
- L J Smyth
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK.
| | - J Kilner
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - V Nair
- Internal Medicine, Department of Nephrology, University of Michigan, Ann Arbor, MI, USA
| | - H Liu
- Department of Department of Medicine/ Nephrology, Department of Genetics, Institute of Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - E Brennan
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - K Kerr
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - N Sandholm
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - J Cole
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Diabetes Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - E Dahlström
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - A Syreeni
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - R M Salem
- Department of Family Medicine and Public Health, UC San Diego, San Diego, CA, USA
| | - R G Nelson
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA
| | - H C Looker
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA
| | - C Wooster
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - K Anderson
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - G J McKay
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - F Kee
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - I Young
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - D Andrews
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - C Forsblom
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - J N Hirschhorn
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - C Godson
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - P H Groop
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A P Maxwell
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK.,Regional Nephrology Unit, Belfast City Hospital, Belfast, Northern Ireland, UK
| | - K Susztak
- Department of Department of Medicine/ Nephrology, Department of Genetics, Institute of Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - M Kretzler
- Internal Medicine, Department of Nephrology, University of Michigan, Ann Arbor, MI, USA
| | - J C Florez
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - A J McKnight
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
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50
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Cai S, Lu JX, Wang YP, Shi CJ, Yuan T, Wang XP. SH2B3, Transcribed by STAT1, Promotes Glioblastoma Progression Through Transducing IL-6/gp130 Signaling to Activate STAT3 Signaling. Front Cell Dev Biol 2021; 9:606527. [PMID: 33937225 PMCID: PMC8080264 DOI: 10.3389/fcell.2021.606527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/29/2021] [Indexed: 01/05/2023] Open
Abstract
Glioblastoma (GBM) is the most common and aggressive brain tumor in adults. The aberrant activation of STAT3 commonly occurs in GBM and is a key player in GBM tumorigenesis. Yet, the aberrant activation of STAT3 signaling is not fully understood. Here, we report that SH2B adaptor protein 3 (SH2B3) is highly expressed in GBM and preferentially expressed in GBM stem cells (GSCs). Moreover, SH2B3 high expression predicts worse survival of GBM patients. Targeting SH2B3 considerably impairs GBM cell proliferation, migration, and GSCs' self-renewal in vitro as well as xenograft tumors growth in vivo. Additionally, we provide evidence suggesting that STAT1 directly binds to the promoter of SH2B3 and activates SH2B3 expression in the transcriptional level. Functionally, SH2B3 facilitates GBM progression via physically interacting with gp130 and acting as an adaptor protein to transduce IL-6/gp130/STAT3 signaling. Together, our work firstly uncovers that the STAT1/SH2B3/gp130/STAT3 signaling axis plays critical roles in promoting GBM progression and provides insight into new prognosis marker and therapeutic target in GBM.
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Affiliation(s)
| | | | | | | | | | - Xiang-peng Wang
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
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