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The Phenotype of Human Stk4 Deficiency Publisher Pubmed



Abdollahpour H1 ; Appaswamy G1 ; Kotlarz D1, 2 ; Diestelhorst J1, 2 ; Beier R1 ; Schaffer AA3 ; Gertz EM3 ; Schambach A4 ; Kreipe HH5 ; Pfeifer D6 ; Engelhardt KR7 ; Rezaei N8 ; Grimbacher B7 ; Lohrmann S9 Show All Authors
Authors
  1. Abdollahpour H1
  2. Appaswamy G1
  3. Kotlarz D1, 2
  4. Diestelhorst J1, 2
  5. Beier R1
  6. Schaffer AA3
  7. Gertz EM3
  8. Schambach A4
  9. Kreipe HH5
  10. Pfeifer D6
  11. Engelhardt KR7
  12. Rezaei N8
  13. Grimbacher B7
  14. Lohrmann S9
  15. Sherkat R10
  16. Klein C1, 2
Show Affiliations
Authors Affiliations
  1. 1. Department of Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
  2. 2. University Children's Hospital Munich, Dr Von Haunersches Kinderspital, D-80337 Munich, Lindwurmstraße 4, Germany
  3. 3. National Center for Biotechnology Information, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States
  4. 4. Department of Experimental Hematology, Hannover Medical School, Hannover, Germany
  5. 5. Institute of Pathology, Hannover Medical School, Hannover, Germany
  6. 6. Department of Hematology/Oncology, Core Facility II Genomics, Freiburg University Medical Center, Freiburg, Germany
  7. 7. Department of Immunology and Molecular Pathology, Royal Free Hospital, University College London, London, United Kingdom
  8. 8. Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
  9. 9. Department of Pediatric Cardiology, Hannover Medical School, Hannover, Germany
  10. 10. Infectious Diseases Research Center, Department of Infectious Diseases, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Blood Published:2012


Abstract

We describe a novel clinical phenotype associating T- and B-cell lymphopenia, intermittent neutropenia, and atrial septal defects in 3 members of a consanguineous kindred. Their clinical histories included recurrent bacterial infections, viral infections, mucocutaneous candidiasis, cutaneous warts, and skin abscesses. Homozygosity mapping and candidate gene sequencing revealed a homozygous premature termination mutation in the gene STK4 (serine threonine kinase 4, formerly having the symbol MST1). STK4 is the human ortholog of Drosophila Hippo, the central constituent of a highly conserved pathway controlling cell growth and apoptosis. STK4-deficient lymphocytes and neutrophils exhibit enhanced loss of mitochondrial membrane potential and increased susceptibility to apoptosis. STK4 deficiency is a novel human primary immunodeficiency syndrome.