Research Topics
| M R BlackburnSummaryAffiliation: Baylor College of Medicine Country: USA Publications
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Publications
Adenosine deaminase-deficient mice generated using a two-stage genetic engineering strategy exhibit a combined immunodeficiencyM R Blackburn
Verna and Marrs McLean Department of Biochemistry, Baylor College of Medicine, Houston, Texas 77030, USA
J Biol Chem 273:5093-100. 1998..ADA-deficient mice also exhibited severe pulmonary insufficiency, bone abnormalities, and kidney pathogenesis. These mice have provided in vivo information into the metabolic basis for the immune phenotype associated with ADA deficiency...
Metabolic consequences of adenosine deaminase deficiency in mice are associated with defects in alveogenesis, pulmonary inflammation, and airway obstructionM R Blackburn
Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston Medical School, Houston, Texas 77030, USA
J Exp Med 192:159-70. 2000..These data suggest that disturbances in purinergic signaling mediate the lung inflammation and damage seen in ADA-deficient mice...
The use of enzyme therapy to regulate the metabolic and phenotypic consequences of adenosine deaminase deficiency in mice. Differential impact on pulmonary and immunologic abnormalitiesM R Blackburn
Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston Medical School, Houston, Texas 77030, USA
J Biol Chem 275:32114-21. 2000..This model will be useful in examining the efficacy of ADA enzyme therapy and studying the mechanisms underlying the immunodeficiency and pulmonary phenotypes associated with ADA deficiency...
Adenosine-dependent airway inflammation and hyperresponsiveness in partially adenosine deaminase-deficient miceJ L Chunn
Department of Biochemistry and Molecular Biology, University of Texas Health Science Center, Houston Medical School, Houston, TX 77030, USA
J Immunol 167:4676-85. 2001..Collectively, these findings suggest that elevations in adenosine can directly impact lung inflammation and physiology...
Adenosine-mediated mast cell degranulation in adenosine deaminase-deficient miceH Zhong
Department of Biochemistry and Molecular Biology, The University of Texas Houston Medical School, Houston, Texas 77030, USA
J Pharmacol Exp Ther 298:433-40. 2001....
Diverse genetic regulatory motifs required for murine adenosine deaminase gene expression in the placentaD Shi
Verna and Marrs McLean Department of Biochemistry, Baylor College of Medicine, Houston, Texas 77030, USA
J Biol Chem 272:2334-41. 1997..These findings indicate that multiple protein binding motifs are necessary for Ada expression in the placenta...
Metabolic and immunologic consequences of limited adenosine deaminase expression in miceM R Blackburn
Verna and Marrs McLean Department of Biochemistry, Baylor College of Medicine, Houston, Texas 77030, USA
J Biol Chem 271:15203-10. 1996..These mice represent the first genetic animal model for ADA deficiency and provide insight into the tissue-specific requirements of ADA...
Disruption of the adenosine deaminase gene causes hepatocellular impairment and perinatal lethality in miceM Wakamiya
Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
Proc Natl Acad Sci U S A 92:3673-7. 1995..The results presented here demonstrate that ADA is important for the homeostatic maintenance of purines in mice...
Genetically engineered mice demonstrate that adenosine deaminase is essential for early postimplantation developmentM R Blackburn
Verna and Marrs McLean Department of Biochemistry, Baylor College of Medicine, Houston, TX 77030, USA
Development 124:3089-97. 1997..These experiments provide genetic evidence that Ada expression at the maternal-fetal interface is essential for early postimplantation development in mice...
Tissue-specific rescue suggests that placental adenosine deaminase is important for fetal development in miceM R Blackburn
Verna and Mars McLean Department of Biochemistry, Baylor College of Medicine, Houston, Texas 77030, USA
J Biol Chem 270:23891-4. 1995..Our findings suggest that placental ADA is important for murine fetal development and illustrate a general strategy for the tissue specific correction of phenotypes associated with null mutations in mice...
Adenosine deaminase deficiency increases thymic apoptosis and causes defective T cell receptor signalingS G Apasov
Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland 20892, USA
J Clin Invest 108:131-41. 2001..Experiments with thymocytes ex vivo confirmed that ADA deficiency reduces tyrosine phosphorylation of TCR-associated signaling molecules and blocks TCR-triggered calcium increases...
Metabolites from apoptotic thymocytes inhibit thymopoiesis in adenosine deaminase-deficient fetal thymic organ culturesL F Thompson
Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, University of Oklahoma, Oklahoma City, 73104, USA
J Clin Invest 106:1149-57. 2000..Thus, ADA substrates accumulate and disrupt thymocyte development in ADA deficiency. These substrates derive from thymocytes that undergo apoptosis as a consequence of failing to pass developmental checkpoints, such as beta selection...
Ontogeny of adenosine deaminase in the mouse decidua and placenta: immunolocalization and embryo transfer studiesT B Knudsen
Department of Anatomy, East Tennessee State University, James H Quillen College of Medicine, Johnson City 37614
Biol Reprod 44:171-84. 1991..Thus, maternal expression of ADA in the antimesometrial decidua may play a role during establishment of the embryo in the uterine environment, whereas fetal expression of ADA in the trophoblast might be important to placentation...
Activation of apoptosis in early mouse embryos by 2'-deoxyadenosine exposureX Gao
Department of Anatomy and Developmental Biology, Jefferson Medical College, Philadelphia, Pennsylvania 19107
Teratology 49:1-12. 1994..Exposure to this metabolic toxin activates apoptosis in day 7-8 embryos through an adenosine-sensitive, NAD-dependent mechanism...
A1 adenosine receptors mediate hypoglycemia-induced neuronal injuryC P Turner
Department of Pediatrics, Yale Child Health Researh Center, 464 Congress Avenue, New Haven, Connecticut 06520, USA
J Mol Endocrinol 32:129-44. 2004..Collectively, these data show that hypoglycemia induces A1ARs activation leading to alterations in [Ca2+]i, which plays a prominent role in leading to hypoglycemia-induced neuronal death...
