Cited by 184Estrogen and related hormone effectsStress Responses and CortisolSignaling Pathways in Disease

Glucocorticoid Resistance in the Squirrel Monkey Is Associated with Overexpression of the Immunophilin FKBP511

Reynolds, P. D., Ruan, Y., Smith, D. F., Scammell, J. G.·1999·The Journal of Clinical Endocrinology & Metabolism

Abstract

Squirrel monkeys are neotropical primates that have high circulating cortisol to compensate for expression of glucocorticoid receptors (GRs) with reduced affinity. The low binding affinity of squirrel monkey GR does not result from substitutions in the receptor, because squirrel monkey GR expressed in vitro exhibits high affinity. Rather, squirrel monkeys express a soluble factor that, in mixing studies of cytosol from squirrel monkey lymphocytes (SML) and mouse L929 cells, reduced GR binding affinity by 11-fold. In an effort to identify this factor, the cellular levels of components of the GR heterocomplex in SML and human lymphocytes (HL) were compared. The immunophilin FKBP51 was 13-fold higher in SML than in HL cytosol; FKBP52 in SML was 42% of that in HL cytosol. A role for changes in immunophilins, causing glucocorticoid resistance in neotropical primates, is supported by the following: the changes in FKBP51 and FKBP52 were observed in cells from other neotropical primates with glucocorticoid resistance; the elevated level of FKBP51 was reflected in an abundance of FKBP51 in heat shock protein 90 complexes in SML; when cytosols of SML and L929 cells were mixed, the decrease in GR binding was associated with incorporation of FKBP51 into GR heterocomplexes; the effect of SML cytosol on GR binding was reproduced with cytosol from COS cells expressing squirrel monkey FKBP51; and both the effect of SML cytosol on GR binding and the incorporation of FKBP51 into GR heterocomplexes were blocked by FK506. Regulation of GR binding by FKBP51 represents a previously unrecognized mechanism for regulating glucocorticoid sensitivity.

Integrity signals

Registry

Crossref · 10.1210/jcem.84.2.5429

Cites

43 of 43 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Reynolds, P. D., Ruan, Y., Smith, D. F., & Scammell, J. G.
Affiliations
  • University of South Alabama (US)
  • University of Nebraska Medical Center (US)
Corresponding author
Scammell, J. G.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
1999-02
Volume
84
Issue
2
Pages
663-669
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1978913374
Cited by
184
References
43
Citations by year
2026: 1 · 2023: 5 · 2022: 2 · 2021: 2 · 2020: 8 · 2019: 5 · 2018: 2 · 2017: 7 · 2016: 7 · 2015: 6 · 2014: 6 · 2013: 7 · 2012: 11
FWCI
4.95
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Public Health Service (01254, 13200)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-48218, R01DK048218)
  • National Center for Research Resources (P40RR001254, R24RR013200)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
glucocorticoid resistance, squirrel monkey, FKBP51, FKBP52, immunophilins, glucocorticoid receptor, receptor binding affinity, HSP90, lymphocytes, Neotropical primates, cortisol, FK506
MeSH terms
Animals, Cytosol, Drug Resistance, Glucocorticoids, Humans, Immunosuppressive Agents, Lymphocytes, Receptors, Glucocorticoid, Saimiri, Gene Expression, Tacrolimus, HSP90 Heat-Shock Proteins, Immunophilins, Sirolimus, Tacrolimus Binding Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review