Pondarre Corinne, Campagna Dean R, Antiochos Brendan, Sikorski Lindsay, Mulhern Howard, Fleming Mark D
Department of Pathology, Children's Hospital Boston, 320 Longwood Avenue, Boston, MA 02115, USA.
Blood. 2007 Apr 15;109(8):3567-9. doi: 10.1182/blood-2006-04-015768. Epub 2006 Dec 27.
X-linked sideroblastic anemia with ataxia (XLSA/A) is a rare syndromic form of inherited sideroblastic anemia associated with spinocerebellar ataxia, and is due to mutations in the mitochondrial ATP-binding cassette transporter Abcb7. Here, we show that Abcb7 is essential for hematopoiesis and formally demonstrate that XLSA/A is due to partial loss of function mutations in Abcb7 that directly or indirectly inhibit heme biosynthesis.
伴有共济失调的X连锁铁粒幼细胞贫血(XLSA/A)是一种罕见的遗传性铁粒幼细胞贫血综合征形式,与脊髓小脑共济失调相关,由线粒体ATP结合盒转运体Abcb7的突变引起。在此,我们表明Abcb7对造血至关重要,并正式证明XLSA/A是由Abcb7功能部分丧失突变直接或间接抑制血红素生物合成所致。