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Manohar S, Gofin Y, Streff H, Vossaert L, Camacho P, Murali CN. A familial deletion of 10p12.1 associated with thrombocytopenia. Am J Med Genet A 2024; 194:77-81. [PMID: 37746810 DOI: 10.1002/ajmg.a.63403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 08/23/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023]
Abstract
Thrombocytopenia can be inherited or acquired from a variety of causes. While hereditary causes of thrombocytopenia are rare, several genes have been associated with the condition. In this report, we describe an 18-year-old man and his mother, both of whom have congenital thrombocytopenia. Exome sequencing in the man revealed a 1006 kb maternally inherited deletion in the 10p12.1 region (arr[GRCh37] 10p12.1(27378928_28384564)x1) of uncertain clinical significance. This deletion in the THC2 locus includes genes ANKRD26, known to be involved in normal megakaryocyte differentiation, and MASTL, which some studies suggest is linked to autosomal dominant thrombocytopenia. In the family presented here, the deletion segregated with the congenital thrombocytopenia phenotype, suggesting that haploinsufficiency of one or both genes may be the cause. To our knowledge, this is the first report of a deletion of the THC2 locus associated with thrombocytopenia. Future functional studies of deletions of the THC2 locus may elucidate the mechanism for this phenotype observed clinically.
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Affiliation(s)
- Sujal Manohar
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Yoel Gofin
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Haley Streff
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Liesbeth Vossaert
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Pamela Camacho
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Texas Children's Cancer and Hematology Centers, Houston, Texas, USA
| | - Chaya N Murali
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
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Muacevic A, Adler JR, Rampuri V, Choudhary R, Awasthi A. Etiological Profiles of Patients With Thrombocytopenia in Central India: A Tertiary Centre Study. Cureus 2022; 14:e32571. [PMID: 36654609 PMCID: PMC9840561 DOI: 10.7759/cureus.32571] [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: 10/05/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction Platelet-related disease may result from an abnormal platelet count, namely thrombocytopenia or thrombocythemia, or altered platelet function, and thus is associated with bleeding or with thrombotic manifestation. Thrombocytopenia is defined as a subnormal number of platelets i.e. less than 1,50,000/µL in the peripheral blood. It can lead to inadequate clot formation and increased risk of bleeding and is a common indication for bone marrow aspiration and biopsy. Methodology The study was a hospital-based prospective observational study from January 2019 to June 2020. All cases of thrombocytopenia which were diagnosed first on haematology analyser (platelet counts <150,000/µL) and confirmed subsequently by peripheral smear with/without bleeding manifestations due to thrombocytopenia were taken up for the study. The aims and objectives of this study were to find out the epidemiological spectrum and prevalence of thrombocytopenia according to age and sex along with the correlation of haematological and bone marrow findings of such patients. Result This study comprised 100 cases of thrombocytopenia, with acute leukaemia accounting for the majority (28/100), followed by dimorphic anaemia (15/100), megaloblastic anaemia (11/100), hypocellular marrow, infection, and other conditions. All cases (100%) displayed the clinical symptom of widespread weakness and pallor, which was followed by fatiguability (72%) and dyspnoea (48%). Many thrombocytopenic individuals also had lymphadenopathy and hepatomegaly, the last two least common appearances. Lymphadenopathy and hepatomegaly which were the last two least common presentations were present in a significant number of thrombocytopenic patients. Conclusion The study of bone marrow is helpful in the diagnosis of thrombocytopenia cases. Bone marrow examination is a simple, safe outpatient procedure and yields an impressive amount of diagnostically valuable data in a wide variety of disorders of thrombocytopenia. An evaluation of the patient's bone marrow unquestionably aids in the early diagnosis and treatment of their ailment.
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Liu KL, Tsai WC, Lee CH. Non-mycosis fungoides cutaneous lymphomas in a referral center in Taiwan: A retrospective case series and literature review. PLoS One 2020; 15:e0228046. [PMID: 31978091 PMCID: PMC6980583 DOI: 10.1371/journal.pone.0228046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/06/2020] [Indexed: 01/28/2023] Open
Abstract
Background While mycosis fungoides (MF) and Sézary syndrome (SS) are the most common cutaneous lymphomas (CLs), there is limited data about non-MF/SS CLs. Objective We aimed to evaluate clinical characteristics of non-MF/SS CLs. Methods A retrospective analysis evaluated patients with non-MF/SS CLs covering a period of 17 years. The records of 59 patients with non-MF/SS CLs were reviewed for demographic profiles, clinical features, and survival outcomes. Results Our series consisted of 38 non-MF/SS cutaneous T-cell lymphomas (CTCLs) and 21 cutaneous B-cell lymphomas (CBCLs). In the group of non-MF/SS CTCLs including 33 primary and five secondary cases, there were cases of anaplastic large cell lymphoma (15.3% of non-MF/SS CLs), extranodal natural killer/ T-cell lymphoma (13.5%), peripheral T-cell lymphoma, not otherwise specified (13,5%), adult T-cell leukemia/lymphoma (8.5%), subcutaneous panniculitis-like T-cell lymphoma (6.8%) and angioimmunoblastic T-cell lymphoma (6.8%). In the group of CBCLs including nine primary and 12 secondary cases, there were cases of diffuse large B-cell lymphoma (22.0%), mantle cell lymphoma (5.1%), extranodal marginal lymphoma of mucosa associated lymphoid tissue (3.4%), follicle center lymphoma (3.4%) and intravascular large B-cell lymphoma (1.7%). The overall survivals were 57 months for non-MF/SS CTCLs and 41.5 months for CBCLs. Elevated serum lactate dehydrogenase level, thrombocytopenia, multiple anatomical sites of skin involvement and lower albumin level may be associated with poor prognosis in non-MF/SS CTCLs, but the latter two were not in CBCLs. Conclusion With this series, we hope to provide indigenous data and outcome of non-MF/SS CLs. The overall survival of non-MF/SS CTCLs was better than CBCLs.
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Affiliation(s)
- Kwei-Lan Liu
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | | | - Chih-Hung Lee
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- * E-mail:
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Wang Q, Li J, Yu TS, Liu Y, Li K, Liu S, Liu Y, Feng Q, Zhang L, Li GS, Shao LL, Peng J, Hou M, Liu XG. Disrupted balance of CD4 + T-cell subsets in bone marrow of patients with primary immune thrombocytopenia. Int J Biol Sci 2019; 15:2798-2814. [PMID: 31853219 PMCID: PMC6909963 DOI: 10.7150/ijbs.33779] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 10/05/2019] [Indexed: 12/18/2022] Open
Abstract
Disequilibrium of CD4+ T-cell subpopulations in peripheral blood (PB) of patients with primary immune thrombocytopenia (ITP) has been well established, whereas the profile of CD4+ T-cell subpopulations in bone marrow (BM) remains elusive. In the present study, the frequencies of T helper 22 (Th22), Th17, Th1, Th2, follicular T helper (Tfh) cells and regulatory T cells (Tregs) as well as their effector cytokines in BM and PB from active ITP patients and healthy controls (HCs) were determined. Results showed that the frequencies of Th22, Th17, Th1, and Tfh cells were significantly higher, but Treg number was remarkably lower in BM from ITP patients than from HCs. In the ITP group, it was notable that the numbers of BM Th22, Th17, Th1, Th2, and Tfh cells were significantly elevated compared with the matched PB counterparts, while Treg number in BM was considerably reduced compared with that in PB. In consistence with the BM Th subset pattern, plasma levels of interleukin (IL)-22, IL-17A, and interferon (INF)-γ in BM from ITP patients were significantly increased compared with that from HCs. Therefore, the balance of CD4+ T-cell subsets was disrupted in both BM and PB of ITP patients, suggesting that this might play important roles in the pathophysiological process of ITP.
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Affiliation(s)
- Qian Wang
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China.,Department of Clinical Laboratory, Qilu Hospital, Shandong University (Qingdao), 758 Hefei Road, Qingdao, P. R. China
| | - Juan Li
- Department of Clinical Laboratory, Qilu Hospital, Shandong University (Qingdao), 758 Hefei Road, Qingdao, P. R. China
| | - Tian-Shu Yu
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Yu Liu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, 3501 Daxue Road, Jinan, P. R. China
| | - Kai Li
- Department of Radiotherapy, Zhangqiu People's Hospital, 1920 Huiquan Road, Jinan, P. R. China
| | - Shuang Liu
- Department of Hematology, Taian Central Hospital, Taian, P. R. China
| | - Yang Liu
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Qi Feng
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Lei Zhang
- Department of Orthopedics, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Guo-Sheng Li
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Lin-Lin Shao
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Jun Peng
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
| | - Ming Hou
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Jinan, China
| | - Xin-Guang Liu
- Department of Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, P. R. China
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