Abstract:
:Hermansky-Pudlak syndrome (HPS) is a rare, autosomal recessive disorder affecting lysosome-related organelles (LRO), including dense platelet granules. HPS causes oculocutaneous hypopigmentation, bleeding diathesis and granulomatous colitis or pulmonary fibrosis. To date, there is no curative treatment and the clinical management depends on the severity of symptoms. A prompt diagnosis of HPS patients could improve their quality of life and clinical management. However, the absence of a specific platelet function test, the wide molecular heterogeneity, and the lack of phenotype-genotype correlations hamper the rapid diagnosis. Nine subtypes of HPS have been identified as a result of mutations in nine genes that codify for proteins involved in formation and shuttle of the LRO. The molecular characterization of patients and knowledge derived from animal models of HPS contribute to the understanding of biogenesis and function of the LRO. This paper describes a patient with a novel homozygous nonsense mutation causing HPS and provides a review of the literature focusing on recent advances in the molecular characterization and physiopathology of HPS.
journal_name
Hamostaseologiejournal_title
Hamostaseologieauthors
Sánchez-Guiu I,Torregrosa JM,Velasco F,Antón AI,Lozano ML,Vicente V,Rivera Jdoi
10.5482/HAMO-14-06-0024subject
Has Abstractpub_date
2014-01-01 00:00:00pages
301-9issue
4eissn
0720-9355issn
2567-5761pii
14-06-0024journal_volume
34pub_type
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