Thromb Haemost 1995; 74(02): 758-763
DOI: 10.1055/s-0038-1649809
Original Article
Platelets
Schattauer GmbH Stuttgart

Family Studies of Type II CD36 Deficient Subjects: Linkage of a CD36 Allele to a Platelet-Specific mRNA Expression Defect(s) Causing Type II CD36 Deficiency

Authors

  • Hirokazu Kashiwagi

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
  • Yoshiaki Tomiyama

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
  • Satoru Kosugi

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
  • Masamichi Shiraga

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
  • Robert H Lipsky

    3   The Department of Biochemistry, The Jerome H. Holland Laboratory, American Red Cross, Japan
  • Nobuo Nagao

    4   The Osaka Red Cross Blood Center, Japan
  • Yuzuru Kanakura

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
  • Yoshiyuki Kurata

    2   The Department of Blood Transfusion, Osaka University Hospital, Japan
  • Yuji Matsuzawa

    1   The Second Department of Internal Medicine, Osaka University Medical School, Japan
Further Information

Publication History

Received 20 December 1994

Accepted 21 March 1995

Publication Date:
04 September 2018 (online)

Summary

We performed family studies with type II CD36 deficiency. In the Mi.Y family, the proband (YII.1) and his brother (YII.2) displayed a type II deficient phenotype. In the mother(YI.2), binding of the anti CD36 monoclonal antibody, 0KM5, to both platelets and monocytes was reduced as compared to CD36 positive control cells. In the father (YI.1), while 0KM5 binding to his platelets was reduced, that of his monocytes was almost the same as normal control monocytes. Analysis of genomic DNA showed that YI.2, YII.1 and YII.2 were heterozygous for a proline90→serine mutation, and showed that both alleles of YI.1 did not have the mutation. Analysis of CD36 cDNA showed that the Pro90 form of CD36 cDNA could be detected in monocytes, but not in platelets from YII.1 and YII.2. These data indicated that YII.1 and YII.2 could be compound heterozygotes; an allele having a platelet-specific mRNA expression defect(s), which was responsible for the different CD36 expression between their platelets and monocytes, and the Ser90 allele. YI.1 was suggested to be a carrier of the platelet-specific silent allele. The platelet-specific silent allele was linked to a specific genotype of a polymorphic microsatellite sequence in the CD36 gene, supporting our hypothesis that mRNA expression defect(s) occurred at or near the CD36 gene. In a second type IICD36 deficient family, we also obtained results consistent with this hypothesis.