Gary Hammer

Summary

Affiliation: University of Michigan
Country: USA

Publications

  1. pmc Dicer deficiency reveals microRNAs predicted to control gene expression in the developing adrenal cortex
    Kenneth T Krill
    Program in Cellular and Molecular Biology, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA
    Mol Endocrinol 27:754-68. 2013
  2. ncbi request reprint Reciprocal regulation of a glucocorticoid receptor-steroidogenic factor-1 transcription complex on the Dax-1 promoter by glucocorticoids and adrenocorticotropic hormone in the adrenal cortex
    Brian M Gummow
    University of Michigan Medical School, Department of Molecular and Integrative Physiology, Ann Arbor, Michigan 48109 2200, USA
    Mol Endocrinol 20:2711-23. 2006
  3. ncbi request reprint Transsphenoidal microsurgery for Cushing's disease: initial outcome and long-term results
    Gary D Hammer
    Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Michigan, Ann Arbor, Michigan 48109 0678, USA
    J Clin Endocrinol Metab 89:6348-57. 2004
  4. ncbi request reprint Interaction between Dax-1 and steroidogenic factor-1 in vivo: increased adrenal responsiveness to ACTH in the absence of Dax-1
    Poda Suresh Babu
    Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109 0678, USA
    Endocrinology 143:665-73. 2002
  5. ncbi request reprint Genetic analysis of adrenal absence: agenesis and aplasia
    Tobias Else
    Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, 5568 MSRBII, 1150 W Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Trends Endocrinol Metab 16:458-68. 2005
  6. pmc T-cell factor 4N (TCF-4N), a novel isoform of mouse TCF-4, synergizes with beta-catenin to coactivate C/EBPalpha and steroidogenic factor 1 transcription factors
    Jennifer A Kennell
    Program in Cellular and Molecular Biology, Division of Endocrinology and Metabolism, University of Michigan Medical School, 1301 E Catherine Road, Ann Arbor, MI 48109 0622, USA
    Mol Cell Biol 23:5366-75. 2003
  7. ncbi request reprint Convergence of Wnt signaling and steroidogenic factor-1 (SF-1) on transcription of the rat inhibin alpha gene
    Brian M Gummow
    Department of Molecular and Integrative Physiology, Division of Endocrinology and Metabolism, University of Michigan, Ann Arbor, Michigan 48109, USA
    J Biol Chem 278:26572-9. 2003
  8. ncbi request reprint Steroid receptor coactivator-1-deficient mice exhibit altered hypothalamic-pituitary-adrenal axis function
    Jonathon N Winnay
    Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan 48109 0678, USA
    Endocrinology 147:1322-32. 2006
  9. ncbi request reprint Recent insights into organogenesis of the adrenal cortex
    Catherine E Keegan
    Dept Pediatrics, Division of Genetics, University of Michigan Medical School, 5552 MSRB II, 1150 West Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Trends Endocrinol Metab 13:200-8. 2002
  10. ncbi request reprint Steroidogenic factor-1 is essential for compensatory adrenal growth following unilateral adrenalectomy
    Felix Beuschlein
    Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Endocrinology 143:3122-35. 2002

Research Grants

Collaborators

Detail Information

Publications36

  1. pmc Dicer deficiency reveals microRNAs predicted to control gene expression in the developing adrenal cortex
    Kenneth T Krill
    Program in Cellular and Molecular Biology, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA
    Mol Endocrinol 27:754-68. 2013
    ..Together these data suggest a role for miRNA-mediated regulation of a subset of genes that are essential for normal adrenal growth and homeostasis...
  2. ncbi request reprint Reciprocal regulation of a glucocorticoid receptor-steroidogenic factor-1 transcription complex on the Dax-1 promoter by glucocorticoids and adrenocorticotropic hormone in the adrenal cortex
    Brian M Gummow
    University of Michigan Medical School, Department of Molecular and Integrative Physiology, Ann Arbor, Michigan 48109 2200, USA
    Mol Endocrinol 20:2711-23. 2006
    ..These data indicate that GR provides feedback regulation of adrenocortical steroid production through synergistic activation of Dax-1 with SF-1, which is antagonized by ACTH activation of the adrenal cortex...
  3. ncbi request reprint Transsphenoidal microsurgery for Cushing's disease: initial outcome and long-term results
    Gary D Hammer
    Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Michigan, Ann Arbor, Michigan 48109 0678, USA
    J Clin Endocrinol Metab 89:6348-57. 2004
    ..These results suggest that patients with persistent Cushing's disease require early and aggressive intervention to attempt to prevent this excess mortality...
  4. ncbi request reprint Interaction between Dax-1 and steroidogenic factor-1 in vivo: increased adrenal responsiveness to ACTH in the absence of Dax-1
    Poda Suresh Babu
    Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109 0678, USA
    Endocrinology 143:665-73. 2002
    ..These results are consistent with a model in which Dax-1 functions to inhibit SF-1-mediated steroidogenesis in vivo...
  5. ncbi request reprint Genetic analysis of adrenal absence: agenesis and aplasia
    Tobias Else
    Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, 5568 MSRBII, 1150 W Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Trends Endocrinol Metab 16:458-68. 2005
    ..Recent advancements in the field of human and mouse genetics have accumulated evidence for a host of novel factors involved in these processes, such as the hedgehog signaling network and peptides derived from proopiomelanocortin...
  6. pmc T-cell factor 4N (TCF-4N), a novel isoform of mouse TCF-4, synergizes with beta-catenin to coactivate C/EBPalpha and steroidogenic factor 1 transcription factors
    Jennifer A Kennell
    Program in Cellular and Molecular Biology, Division of Endocrinology and Metabolism, University of Michigan Medical School, 1301 E Catherine Road, Ann Arbor, MI 48109 0622, USA
    Mol Cell Biol 23:5366-75. 2003
    ..Thus, we propose that TCF-4N inhibits coactivation by beta-catenin of TCF/LEF transcription factors and potentiates the coactivation by beta-catenin of other transcription factors, such as SF-1 and C/EBPalpha...
  7. ncbi request reprint Convergence of Wnt signaling and steroidogenic factor-1 (SF-1) on transcription of the rat inhibin alpha gene
    Brian M Gummow
    Department of Molecular and Integrative Physiology, Division of Endocrinology and Metabolism, University of Michigan, Ann Arbor, Michigan 48109, USA
    J Biol Chem 278:26572-9. 2003
    ..These data support the recent observation that beta-catenin can participate in nuclear receptor-mediated transcriptional activation and extend the findings to the monomer binding class of orphan nuclear receptors...
  8. ncbi request reprint Steroid receptor coactivator-1-deficient mice exhibit altered hypothalamic-pituitary-adrenal axis function
    Jonathon N Winnay
    Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan 48109 0678, USA
    Endocrinology 147:1322-32. 2006
    ..Collectively, these data are consistent with an indispensable role for SRC-1 in mediating actions of glucocorticoids in pituitary and liver...
  9. ncbi request reprint Recent insights into organogenesis of the adrenal cortex
    Catherine E Keegan
    Dept Pediatrics, Division of Genetics, University of Michigan Medical School, 5552 MSRB II, 1150 West Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Trends Endocrinol Metab 13:200-8. 2002
    ..Here, we outline the developmental milestones of the adrenal cortex with recent contributions to the field, focusing on factors that have been shown to play a role in vivo in humans and mice...
  10. ncbi request reprint Steroidogenic factor-1 is essential for compensatory adrenal growth following unilateral adrenalectomy
    Felix Beuschlein
    Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109 0678, USA
    Endocrinology 143:3122-35. 2002
    ..Taken together, these results reflect a primary inability of adrenal cortical cells of SF-1(+/-) mice to undergo compensatory adrenal growth in response to uADX...
  11. pmc Molecular classification and prognostication of adrenocortical tumors by transcriptome profiling
    Thomas J Giordano
    Department of Pathology, 1150 West Medical Center Drive, MSRB 2, C570D, Ann Arbor, MI 48109 0669, USA
    Clin Cancer Res 15:668-76. 2009
    ..For instance, can molecular subtypes of ACC be identified? If so, what is their underlying pathogenetic basis and do they possess clinical significance?..
  12. pmc Dax-1 and steroid receptor RNA activator (SRA) function as transcriptional coactivators for steroidogenic factor 1 in steroidogenesis
    Bin Xu
    Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan Medical School, Ann Arbor, Michigan 48109 5678, USA
    Mol Cell Biol 29:1719-34. 2009
    ..These findings reveal novel functions of SRA and Dax-1 in steroidogenesis and adrenal biology...
  13. ncbi request reprint Adrenocorticotropic hormone-mediated signaling cascades coordinate a cyclic pattern of steroidogenic factor 1-dependent transcriptional activation
    Jonathon N Winnay
    Department of Molecular and Integrative Pysiology, University of Michigan Medical School, Ann Arbor, Michigan 48109 0678, USA
    Mol Endocrinol 20:147-66. 2006
    ..In addition, the current study demonstrates that specific enzymatic activities are capable of regulating distinct facets of a highly ordered transcriptional response...
  14. doi request reprint Proposal for modification of the ENSAT staging system for adrenocortical carcinoma using tumor grade
    Barbra S Miller
    Division of Endocrine Surgery, University of Michigan, Ann Arbor, MI, USA
    Langenbecks Arch Surg 395:955-61. 2010
    ..We hypothesized that incorporating tumor grade into the current European Network for the Study of Adrenal Tumors (ENSAT) staging system would improve the ability to more accurately predict time to recurrence and death...
  15. ncbi request reprint Minireview: transcriptional regulation of adrenocortical development
    Gary D Hammer
    Division of Metabolism, Endocrinology, and Metabolism, Department of Internal Medicine, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, Michigan 48109 0678, USA
    Endocrinology 146:1018-24. 2005
    ....
  16. pmc SUMOylation inhibits SF-1 activity by reducing CDK7-mediated serine 203 phosphorylation
    Wei Hsiung Yang
    Department of Internal Medicine, Division of Metabolism, University of Michigan Medical School, Ann Arbor, Michigan 48109 2200, USA
    Mol Cell Biol 29:613-25. 2009
    ..Based on these observations, we propose a coordinated modification model in which inhibition of SF-1-mediated transcription by SUMOylation in adrenocortical cancer cells is mediated through reduced CDK7-induced phosphorylation of SF-1...
  17. ncbi request reprint Novel polymorphisms and lack of mutations in the ACD gene in patients with ACTH resistance syndromes
    Catherine E Keegan
    Department of Pediatrics, Division of Genetics, University of Michigan Medical School, 1150 W Medical Center Drive, Ann Arbor, MI 48109, USA
    Clin Endocrinol (Oxf) 67:168-74. 2007
    ..The human homolog of the Acd gene, mutated in a mouse model of adrenal insufficiency, was sequenced in 25 patients with a clinical diagnosis of familial glucocorticoid deficiency or triple A syndrome...
  18. ncbi request reprint IMAGe association and congenital adrenal hypoplasia: no disease-causing mutations found in the ACD gene
    Janna E Hutz
    Department of Pediatrics, Division of Genetics, University of Michigan, Ann Arbor, MI, USA
    Mol Genet Metab 88:66-70. 2006
    ..Sequencing of ACD in 15 patients revealed no coding mutations, but three novel SNPs were identified...
  19. doi request reprint Targeted disruption of beta-catenin in Sf1-expressing cells impairs development and maintenance of the adrenal cortex
    Alex C Kim
    Department of Medicine, University of Michigan Medical School, Ann Arbor, MI 48109 0678 USA
    Development 135:2593-602. 2008
    ..These results define crucial roles for beta-catenin--presumably as part of the Wnt canonical signaling pathway--in both embryonic development of the adrenal cortex and in maintenance of the adult organ...
  20. doi request reprint Tpp1/Acd maintains genomic stability through a complex role in telomere protection
    Tobias Else
    Department of Internal Medicine, Division of Endocrinology and Metabolism, The University of Michigan, Ann Arbor, MI 48109, USA
    Chromosome Res 15:1001-13. 2007
    ..Together, these studies show that Tpp1/Acd plays a vital role in telomere protection, but likely has additional functions yet to be defined...
  21. pmc Genetic p53 deficiency partially rescues the adrenocortical dysplasia phenotype at the expense of increased tumorigenesis
    Tobias Else
    Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI 48109 2200, USA
    Cancer Cell 15:465-76. 2009
    ..Tumors from Acd(acd/acd) p53(+/-) mice show a striking switch from the classic spectrum of p53(-/-) mice toward carcinomas. The acd mouse model provides further support for an in vivo role of telomere deprotection in tumorigenesis...
  22. ncbi request reprint Ectopic pro-opiomelanocortin syndrome
    Felix Beuschlein
    Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Michigan, 5560A MSRB II, 1150 West Medical Center Dr, Ann Arbor, MI 48109 0678, USA
    Endocrinol Metab Clin North Am 31:191-234. 2002
    ..Diagnostic imaging, including conventional radiological techniques and somatostatin receptor scintigraphy, aids in the correct localization and eventual treatment of ectopic POMC production...
  23. pmc Activin induces x-zone apoptosis that inhibits luteinizing hormone-dependent adrenocortical tumor formation in inhibin-deficient mice
    Felix Beuschlein
    Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, USA
    Mol Cell Biol 23:3951-64. 2003
    ....
  24. ncbi request reprint Genetic removal of Smad3 from inhibin-null mice attenuates tumor progression by uncoupling extracellular mitogenic signals from the cell cycle machinery
    Brendan D Looyenga
    Cellular and Molecular Biology Graduate Program, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, Michigan 48109 2200, USA
    Mol Endocrinol 21:2440-57. 2007
    ..Together these observations imply that activin/Smad3 signaling is necessary for efficient signaling by FSH in Inha-/- tumor cells and that interruption of this pathway uncouples FSH from its intracellular mitogenic effectors...
  25. ncbi request reprint Urogenital and caudal dysgenesis in adrenocortical dysplasia (acd) mice is caused by a splicing mutation in a novel telomeric regulator
    Catherine E Keegan
    Department of Pediatrics, Division of Genetics, University of Michigan, Ann Arbor, MI 48109 0789, USA
    Hum Mol Genet 14:113-23. 2005
    ..This is the first report to show that a telomeric regulator is required for proper urogenital ridge differentiation, axial skeleton specification and limb patterning in mice...
  26. pmc Evidence of adrenal failure in aging Dax1-deficient mice
    Joshua O Scheys
    Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, Michigan 48109 2200, USA
    Endocrinology 152:3430-9. 2011
    ....
  27. pmc In search of adrenocortical stem and progenitor cells
    Alex C Kim
    Department of Internal Medicine, Division of Metabolism, Ann Arbor, Michigan 48109 2200, USA
    Endocr Rev 30:241-63. 2009
    ..Together, the work provides a framework for the emerging somatic stem cell field as it relates to the adrenal gland...
  28. ncbi request reprint Management of adrenocortical carcinoma
    Jonathan R Strosberg
    University of Michigan School of Medicine, Ann Arbor, Michigan 48109, USA
    J Natl Compr Canc Netw 7:752-8; quiz 759. 2009
    ..This article describes the basic diagnostic and prognostic issues in adrenal cancer management, and presents detailed rationales for therapeutic management...
  29. doi request reprint The role of radiologic studies in the evaluation and management of primary hyperaldosteronism
    Matthew L White
    Division of Endocrine Surgery, Department of Surgery, University of Michigan, Ann Arbor, Mich, USA
    Surgery 144:926-33; discussion 933. 2008
    ..Surgical treatment of primary hyperaldosteronism (PHA) requires demonstration of unilateral adrenal hypersecretion. Optimal methods for interpretation of imaging and invasive testing are still in development...
  30. pmc Adrenocortical cells with stem/progenitor cell properties: recent advances
    Alex C Kim
    University of Michigan Medical School, Cell and Molecular Biology Training Program, 1502 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI 48109 2200, United States
    Mol Cell Endocrinol 265:10-6. 2007
    ..In this review, we discuss historic developmental studies together with recent molecular examinations that aim to characterize such populations of cells...
  31. ncbi request reprint Mechanistic roles of inhibin as a tumor suppressor in the adrenal cortex
    Brendan Looyenga
    University of Michigan, Ann Arbor, Michigan 48109, USA
    Endocr Res 30:585-6. 2004
  32. ncbi request reprint Origin and identity of adrenocortical tumors in inhibin knockout mice: implications for cellular plasticity in the adrenal cortex
    Brendan D Looyenga
    Cellular and Molecular Biology Graduate Program, Division of Endocrinology, University of Michigan, Ann Arbor, Michigan 48109 2200, USA
    Mol Endocrinol 20:2848-63. 2006
    ..These data suggest that Inha-/- adrenocortical tumors cells are derived from pluripotent adrenocortical progenitor cells that adopt a gonadal fate due to the convergent loss of inhibin and chronic exposure to elevated gonadotropins...
  33. ncbi request reprint Telomere protection by mammalian Pot1 requires interaction with Tpp1
    Dirk Hockemeyer
    Laboratory for Cell Biology and Genetics, The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA
    Nat Struct Mol Biol 14:754-61. 2007
    ....
  34. ncbi request reprint Pre-B-cell transcription factor 1 and steroidogenic factor 1 synergistically regulate adrenocortical growth and steroidogenesis
    Urs D Lichtenauer
    Division of Endocrine Research, Department of Medicine Innenstadt, University Hospital Munich, Ziemssenstrasse 1, D 80336 Munich, Germany
    Endocrinology 148:693-704. 2007
    ....
  35. ncbi request reprint Nuclear receptors Sf1 and Dax1 function cooperatively to mediate somatic cell differentiation during testis development
    Susan Y Park
    Division of Endocrinology and Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
    Development 132:2415-23. 2005
    ..Thus, although Sf1 and Dax1 function as transcriptional antagonists for many target genes in vitro, they act independently or cooperatively in vivo during male gonadal development...
  36. ncbi request reprint Gonadectomy in mice of the inbred strain CE/J induces proliferation of sub-capsular adrenal cells expressing gonadal marker genes
    Inga K Johnsen
    Division of Endocrinology and Metabolism, Department of Internal Medicine II, Klinikum der Albert Ludwigs Universit├Ąt, D 79106 Freiburg, Germany
    J Endocrinol 190:47-57. 2006
    ..The distinct expression pattern of this cell population is consistent with a defect in the differentiation of these cells into a cell population with functional properties that otherwise define a gonadal endocrine phenotype...

Research Grants10

  1. Wnt-responsive adrenocortical cells in organ maintenance and cancer
    Gary D Hammer; Fiscal Year: 2011
    ..Future efforts are predicted to focus on therapies that target this pathway and downstream genes that are found in the course of these studies. ..
  2. Wnt-responsive adrenocortical cells in organ maintenance and cancer
    Gary D Hammer; Fiscal Year: 2010
    ..Future efforts are predicted to focus on therapies that target this pathway and downstream genes that are found in the course of these studies. ..
  3. Mechanisms of Adrenal Differentiation
    Gary D Hammer; Fiscal Year: 2010
    ..Future efforts are predicted to focus on therapies that target this pathway and downstream genes that are found in the course of these studies to participate in adrenocortical stem/progenitor cell biology. ..
  4. Mechanisms of Adrenal Differentiation
    Gary Hammer; Fiscal Year: 2007
    ..We believe that the studies proposed here will provide the framework for understanding the molecular events that dictate adrenocortical cell differentiation. ..
  5. Mechanisms of Adrenal Differentiation
    Gary D Hammer; Fiscal Year: 2010
    ..abstract_text> ..