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Karampini E, Schillemans M, Hofman M, van Alphen F, de Boer M, Kuijpers TW, van den Biggelaar M, Voorberg J, Bierings R. Defective AP-3-dependent VAMP8 trafficking impairs Weibel-Palade body exocytosis in Hermansky-Pudlak Syndrome type 2 blood outgrowth endothelial cells. Haematologica 2019; 104:2091-2099. [PMID: 30630984 PMCID: PMC6886443 DOI: 10.3324/haematol.2018.207787] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/09/2019] [Indexed: 12/21/2022] Open
Abstract
Weibel-Palade bodies are endothelial secretory organelles that contain von Willebrand factor, P-selectin and CD63. Release of von Willebrand factor from Weibel-Palade bodies is crucial for platelet adhesion during primary hemostasis. Endosomal trafficking of proteins like CD63 to Weibel-Palade bodies during maturation is dependent on the adaptor protein complex 3 complex. Mutations in the AP3B1 gene, which encodes the adaptor protein complex 3 β1 subunit, result in Hermansky-Pudlak syndrome 2, a rare genetic disorder that leads to neutropenia and a mild bleeding diathesis. This is caused by abnormal granule formation in neutrophils and platelets due to defects in trafficking of cargo to secretory organelles. The impact of these defects on the secretory pathway of the endothelium is largely unknown. In this study, we investigated the role of adaptor protein complex 3-dependent mechanisms in trafficking of proteins during Weibel-Palade body maturation in endothelial cells. An ex vivo patient-derived endothelial model of Hermansky-Pudlak syndrome type 2 was established using blood outgrowth endothelial cells that were isolated from a patient with compound heterozygous mutations in AP3B1 Hermansky-Pudlak syndrome type 2 endothelial cells and CRISPR-Cas9-engineered AP3B1-/- endothelial cells contain Weibel-Palade bodies that are entirely devoid of CD63, indicative of disrupted endosomal trafficking. Hermansky-Pudlak syndrome type 2 endothelial cells have impaired Ca2+-mediated and cAMP-mediated exocytosis. Whole proteome analysis revealed that, apart from adaptor protein complex 3 β1, also the μ1 subunit and the v-SNARE VAMP8 were depleted. Stimulus-induced von Willebrand factor secretion was impaired in CRISPR-Cas9-engineered VAMP8-/-endothelial cells. Our data show that defects in adaptor protein complex 3-dependent maturation of Weibel-Palade bodies impairs exocytosis by affecting the recruitment of VAMP8.
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Affiliation(s)
- Ellie Karampini
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Maaike Schillemans
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Menno Hofman
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Floris van Alphen
- Research Facilities, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Martin de Boer
- Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Taco W Kuijpers
- Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
- Pediatric Hematology, Immunology and Infectious Disease, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Maartje van den Biggelaar
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Jan Voorberg
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
- Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam
| | - Ruben Bierings
- Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam
- Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Ma J, Zhang Z, Yang L, Kriston-Vizi J, Cutler DF, Li W. BLOC-2 subunit HPS6 deficiency affects the tubulation and secretion of von Willebrand factor from mouse endothelial cells. J Genet Genomics 2016; 43:686-693. [PMID: 27889498 PMCID: PMC5199771 DOI: 10.1016/j.jgg.2016.09.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/20/2016] [Accepted: 09/02/2016] [Indexed: 12/03/2022]
Abstract
Hermansky-Pudlak syndrome (HPS) is a recessive disorder with bleeding diathesis, which has been linked to platelet granule defects. Both platelet granules and endothelial Weibel-Palade bodies (WPBs) are members of lysosome-related organelles (LROs) whose formation is regulated by HPS protein associated complexes such as BLOC (biogenesis of lysosome-related organelles complex) -1, -2, -3, AP-3 (adaptor protein complex-3) and HOPS (homotypic fusion and protein sorting complex). Von Willebrand factor (VWF) is critical to hemostasis, which is stored in a highly-multimerized form as tubules in the WPBs. In this study, we found the defective, but varying, release of VWF into plasma after desmopressin (DDAVP) stimulation in HPS1 (BLOC-3 subunit), HPS6 (BLOC-2 subunit), and HPS9 (BLOC-1 subunit) deficient mice. In particular, VWF tubulation, a critical step in VWF maturation, was impaired in HPS6 deficient WPBs. This likely reflects a defective endothelium, contributing to the bleeding tendency in HPS mice or patients. The differentially defective regulated release of VWF in these HPS mouse models suggests the need for precise HPS genotyping before DDAVP administration to HPS patients.
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Affiliation(s)
- Jing Ma
- Center for Medical Genetics, Beijing Children's Hospital, Capital Medical University, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Pediatric Disease Research, Beijing 100045, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhe Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lin Yang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Janos Kriston-Vizi
- MRC Laboratory for Molecular Cell Biology, University College of London, London WC1E 6BT, UK
| | - Daniel F Cutler
- MRC Laboratory for Molecular Cell Biology, University College of London, London WC1E 6BT, UK.
| | - Wei Li
- Center for Medical Genetics, Beijing Children's Hospital, Capital Medical University, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Pediatric Disease Research, Beijing 100045, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing 100069, China.
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Özdemir N, Çelik E, Başlar Z, Celkan T. A rare cause of thrombocyte dysfunction: Hermansky-Pudlak syndrome. TURK PEDIATRI ARSIVI 2014; 49:163-166. [PMID: 26078655 PMCID: PMC4462281 DOI: 10.5152/tpa.2014.1071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 10/01/2012] [Indexed: 06/04/2023]
Abstract
Hermansky-Pudlak syndrome (HPS) is an autosomal recessive disease characterized with oculocutaneous albinism and platelet aggregation disorder. The clinical picture is highly variable and patients may present with different complaints., Ecchymoses usually develop in childhood; epistaxis, postoperative hemorrhage and gingival bleeding may be observed. Here we present 3 patients who were diagnosed with HPS in our clinic. In conclusion, HPS should be considered in all patients with ocular findings and albinism even though bleeding disorder is not described. Bleeding findings may be mild or unrecognized. Absence of secondary wave in platalet aggregation tests supports the diagnosis.
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Affiliation(s)
- Nihal Özdemir
- Division of Pediatric Hematology-Oncology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Emre Çelik
- Division of Pediatric Hematology-Oncology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Zafer Başlar
- Division of Adulthood Hematology, Hemostasis Laboratory, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Tiraje Celkan
- Division of Pediatric Hematology-Oncology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
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Mannucci PM, Cattaneo M. Desmopressin (DDAVP). Platelets 2013. [DOI: 10.1016/b978-0-12-387837-3.00060-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Congenital platelet disorders represent a rare group of diseases classified by either a qualitative or quantitative platelet defect. This article outlines the historical, clinical, laboratory, and genetic features of various inherited platelet disorders with attention given to updated information on disease classification, diagnosis, and genotypes. A separate discussion regarding management addresses the difficulty in treatment strategies, particularly in patients who develop alloimmunization to platelets.
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Affiliation(s)
- Cindy E Neunert
- The University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75390-9063, USA.
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Pierson DM, Ionescu D, Qing G, Yonan AM, Parkinson K, Colby TC, Leslie K. Pulmonary fibrosis in hermansky-pudlak syndrome. a case report and review. Respiration 2006; 73:382-95. [PMID: 16490934 DOI: 10.1159/000091609] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2005] [Accepted: 12/01/2005] [Indexed: 11/19/2022] Open
Abstract
Hermansky-Pudlak syndrome (HPS) is a rare heterogeneously inherited autosomal recessive group of disorders presenting with oculocutaneous albinism, bleeding diathesis and pulmonary disease. HPS is thought to occur as a consequence of disturbed formation or trafficking of intracellular vesicles, most importantly, melanosomes, platelet dense granules and lysosomes. The latter finding, in particular, contributes much to the morbidity associated with the disease, as ceroid lipofuscin deposits in lysosomes affect many organ systems. This is especially problematic in the lungs where it is often associated with pulmonary fibrosis and premature death. Currently, there are 7 known HPS genes in humans. In the mouse, at least 16 known HPS genes produce HPS-mutant phenotypes. The HPS gene mutation is considered to be one of the most prevalent single-gene disorders in northwest Puerto Rico, home to the largest cohort of known patients. In HPS, interventions addressing the bleeding diathesis and pulmonary fibrosis are often disappointingly ineffectual. Pirfenidone, a novel compound with documented anti-inflammatory, antioxidant and antifibrotic effects, appears to hold promise in delaying or preventing fibrosis. To date, there has been one successful lung transplant performed on a patient with HPS. We present a patient with HPS and review the current literature on our understanding of this rare disorder.
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Affiliation(s)
- Diane M Pierson
- Department of Pathology, University of Manitoba, Winnipeg, Canada.
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Gradstein L, FitzGibbon EJ, Tsilou ET, Rubin BI, Huizing M, Gahl WA. Eye movement abnormalities in hermansky-pudlak syndrome. J AAPOS 2005; 9:369-78. [PMID: 16102489 DOI: 10.1016/j.jaapos.2005.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2004] [Revised: 02/15/2005] [Accepted: 02/15/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND Hermansky-Pudlak Syndrome (HPS) is a type of oculocutaneous albinism associated with a bleeding diathesis and pulmonary fibrosis. Although it is known that patients with HPS exhibit nystagmus, the nature of these abnormal eye movements has not been studied. METHODS Twenty-seven patients with HPS, diagnosed by platelet morphology and genetic analysis, underwent a systemic evaluation and complete eye examination. Twenty-five had eye movement recordings using magnetic search coil, infrared, or video oculography. RESULTS All patients had iris transillumination, foveal hypoplasia, and variable hypopigmentation in skin and eyes. All had bleeding tendencies, and 2 reported excessive bleeding during strabismus surgery. Nine patients had pulmonary fibrosis. Visual acuities ranged from 20/20- to 20/320. Twenty patients had strabismus despite 6 having strabismus surgery previously. Ocular oscillations consistent with congenital nystagmus (CN) were clinically evident in 24 of 27 patients, and half showed periodic alternating nystagmus. In 3 patients without CN, eye movement recordings revealed minimal end-gaze nystagmus, square-wave jerks, drift during fixation and saccades, and low-gain pursuit. These patients had melanin in the posterior pole and better visual acuities than the others (P = 0.002). CONCLUSIONS Most patients with HPS have CN, and many have periodic alternating nystagmus. Some have subtle eye movement abnormalities without clinically evident nystagmus, which can obscure the diagnosis, especially if hypopigmentation is mild. Absence of clinical nystagmus in a child with HPS suggests good vision. Patients with albinism, especially before surgery, should be evaluated for HPS to prevent life-threatening complications.
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Affiliation(s)
- Libe Gradstein
- Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
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Katz R, Shani D. A case of deep vein thrombosis in patient with Hermansky-Pudlak syndrome. Ann Hematol 2005; 84:763. [PMID: 16044314 DOI: 10.1007/s00277-005-1081-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Accepted: 06/21/2005] [Indexed: 11/27/2022]
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Cordova A, Barrios NJ, Ortiz I, Rivera E, Cadilla C, Santiago-Borrero PJ. Poor response to desmopressin acetate (DDAVP) in children with Hermansky-Pudlak syndrome. Pediatr Blood Cancer 2005; 44:51-4. [PMID: 15368543 DOI: 10.1002/pbc.20210] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Hermansky-Pudlak syndrome (HPS) is a common genetic disorder in Puerto Rico. In children with HPS, bleeding is the most disturbing and incapacitating problem. Desmopressin (1-deamino-8-D-arginine vasopressin, (DDAVP)) has been recommended in the management of bleeding disorders characterized by platelet dysfunction, such as HPS. METHODS Nineteen pediatric Puerto Rican patients with HPS and prolonged bleeding time (BT) were tested for response to administration of DDAVP. RESULTS Baseline BT was abnormal in 18 (95%) of the patients. The BT following DDAVP administration improved in two cases (11%): one from 7.2 to 5.6 min and the other from 8 to 6 min (Tables II and III). BT measurements remained very prolonged (>15 min) in 17 (89%) of the patients. Patients with the HPS 1 gene mutation had a statistically significant correlation with the poor response following DDAVP (P = 0.03). CONCLUSIONS DDAVP seldom improves the BT of Puerto Rican children with HPS. Response to DDAVP should be determined individually and platelet transfusion should remain the treatment of choice for a major bleeding episode or surgical procedure.
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Affiliation(s)
- Ana Cordova
- Department of Pediatric Hematology/Oncology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico
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Fuse I, Higuchi W, Mito M, Aizawa Y. DDAVP normalized the bleeding time in patients with congenital platelet TxA2 receptor abnormality. Transfusion 2003; 43:563-7. [PMID: 12702175 DOI: 10.1046/j.1537-2995.2003.00389.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND An Arg60-to-Leu mutation was found in the first cytoplasmic loop of the PLT TxA2 receptor as a new congenital PLT disorder characterized by impaired responsiveness to TxA2. However, it has not been clarified whether DDAVP is effective in correcting the bleeding time (BT) in this PLT disorder. STUDY DESIGN AND METHODS DDAVP (0.4 microg/kg) was intravenously administered over 20 minutes in five patients with this PLT disorder, and template BT, PLT retention to glass beads, PLT aggregation, and a coagulation study were performed before and after the infusion of DDAVP. PLT TxA2 synthesis defects (cyclo-oxygenase deficiency, volunteers taking aspirin), thrombasthenia, and Bernard-Soulier syndrome were also included in this study. RESULTS The normalization of BT was found in all patients with this PLT disorder, and one of the patients successfully underwent oral surgical procedures with DDAVP as the only hemostatic agent. DDAVP was also efficacious in the TxA2 synthesis defect but not in other disorders. FVIII coagulation activity, vWF antigen, and ristocetin cofactor significantly increased in all patients after DDAVP, but no changes were seen in the PLT retention rate and PLT aggregation study after DDAVP infusion. CONCLUSION DDAVP was effective in correcting BT in patients with impaired responsiveness to TxA2 as well as impaired production of TxA2.
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Affiliation(s)
- Ichiro Fuse
- Division of Blood Transfusion, Niigata University Medical Hospital, 1-754 Asahimachi, Niigata 951-8520, Japan.
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Zatik J, Póka R, Borsos A, Pfliegler G. Variable response of Hermansky-Pudlak syndrome to prophylactic administration of 1-desamino 8D-arginine in subsequent pregnancies. Eur J Obstet Gynecol Reprod Biol 2002; 104:165-6. [PMID: 12206932 DOI: 10.1016/s0301-2115(02)00063-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Hermansky-Pudlak syndrome is characterised by oculocutaneous albinism and haemorrhagic diathesis. The bleeding tendency that is associated with this autosomal recessive disease is caused by storage-pool deficiency and has been reported to be controllable by prophylactic administration of 1-desamino 8D-arginine (desmopressin, DDAVP). The DDAVP prophylaxis at the first delivery of our patient did not prevent the severe haemorrhagic sequeal requiring transfusion of packed red cells and platelets, but the same preventive measure was successful at her second childbirth. Response to prophylactic DDAVP administration varies between as well as within patients with Hermansky-Pudlak syndrome.
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Affiliation(s)
- János Zatik
- Department of Obstetrics and Gynecology, Medical Faculty, Center for Health and Medical Sciences, University of Debrecen, Debrecen, Hungary.
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Abstract
Hermansky-Pudlak syndrome (HPS) consists of a group of genetically heterogeneous disorders which share the clinical findings of oculocutaneous albinism, a platelet storage pool deficiency, and some degree of ceroid lipofuscinosis. Related diseases share some of these findings and may exhibit other symptoms and signs but the underlying defect in the entire group of disorders involves defective intracellular vesicle formation, transport or fusion. Two HPS-causing genes, HPS1 and ADTB3A, have been isolated but the function of only the latter has been determined. ADTB3A codes for the beta 3A subunit of adaptor complex-3, responsible for vesicle formation from the trans-Golgi network (TGN). The many HPS patients who do not have HPS1 or ADTB3A mutations have their disease because of mutations in other genes. Candidates for these HPS-causing genes include those responsible for mouse models of HPS or for the 'granule' group of eye color genes in Drosophila. Each gene responsible for a subset of HPS or a related disorder codes for a protein which almost certainly plays a pivotal role in vesicular trafficking, inextricably linking clinical and cell biological interests in this group of diseases.
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Affiliation(s)
- M Huizing
- Section on Human Biochemical Genetics, Heritable Disorders Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
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Shotelersuk V, Hazelwood S, Larson D, Iwata F, Kaiser-Kupfer MI, Kuehl E, Bernardini I, Gahl WA. Three new mutations in a gene causing Hermansky-Pudlak syndrome: clinical correlations. Mol Genet Metab 1998; 64:99-107. [PMID: 9705234 DOI: 10.1006/mgme.1998.2679] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hermansky-Pudlak syndrome (HPS) consists of oculocutaneous albinism, a platelet storage pool deficiency, and ceroid lipofuscinosis. HPS is common in northwest Puerto Rico, where affected individuals are homozygous for a 16-bp duplication in the gene HPS. Two other homozygous frameshift mutations in HPS were previously identified among non-Puerto Rican patients. Eighteen non-Puerto Rican HPS families were studied and HPS mutations in three of them identified. One mutation, T322insC, has been previously described. However, three additional mutations, E133X, T322delC, and S396delC, have not been reported. Two families exhibited compound heterozygosity for these mutations, although most previously reported HPS patients have been homozygous for a particular mutation. All the newly described mutations were associated with decreased or undetectable levels of HPS RNA by Northern blot analysis of fibroblasts, and all had significant pigment dilution. To date, all mutations in HPS result in a truncated protein, suggesting that the C-terminal portion of the HPS protein is functionally important.
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Affiliation(s)
- V Shotelersuk
- Section on Human Biochemical Genetics, Heritable Disorders Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
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