Thrombocytopenia is defined by a decrease in the number of platelets in circulating blood, resulting in the potential for increased bleeding and decreased ability for clotting. Inherited syndromes are relatively rare causes of thrombocytopenia, but some genes underlying these disorders have been elucidated. Some inherited syndromes predispose to the development of bone marrow failure or leukemia. For example, familial platelet disorder with associated myeloid malignancy (FPDMM) is characterized by qualitative and quantitative platelet defects, and propensity to develop acute myelogenous leukemia.
Noetzli L, Lo RW, Lee-Sherick AB, Callaghan M, Noris P, Savoia A, Rajpurkar M, Jones K, Gowan K, Balduini C, Pecci A, Gnan C, De Rocco D, Doubek M, Li L, Lu L, Leung R, Landolt-Marticorena C, Hunger S, Heller P, Gutierrez-Hartmann A, Xiayuan L, Pluthero FG, Rowley JW, Weyrich AS, Kahr WHA, Porter CC, Di Paola J
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Germline mutations in ETV6 are associated with thrombocytopenia, red cell macrocytosis and predisposition to lymphoblastic leukemia.
Marconi C, Di Buduo CA, LeVine K, Barozzi S, Faleschini M, Bozzi V, Palombo F, McKinstry S, Lassandro G, Giordano P, Noris P, Balduini CL, Savoia A, Balduini A, Pippucci T, Seri M, Katsanis N, Pecci A
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Loss-of-function mutations in PTPRJ cause a new form of inherited thrombocytopenia.
Niemann JH, Du C, Morlot S, Schmidt G, Auber B, Kaune B, Gohring G, Ripperger T, Schlegelberger B, Hofmann W, Smol T, Ait-Yahya E, Raimbault A, Lambilliotte A, Petit F, Steinemann D
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De novo missense variants in the RAP1B gene identified in two patients with syndromic thrombocytopenia.
Izumi R, Niihori T, Suzuki N, Sasahara Y, Rikiishi T, Nishiyama A, Nishiyama S, Endo K, Kato M, Warita H, Konno H, Takahashi T, Tateyama M, Nagashima T, Funayama R, Nakayama K, Kure S, Matsubara Y, Aoki Y, Aoki M
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GNE myopathy associated with congenital thrombocytopenia: a report of two siblings.
Mazharian A, Wang YJ, Mori J, Bem D, Finney B, Heising S, Gissen P, White JG, Berndt MC, Gardiner EE, Nieswandt B, Douglas MR, Campbell RD, Watson SP, Senis YA
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Mice lacking the ITIM-containing receptor G6b-B exhibit macrothrombocytopenia and aberrant platelet function.
