The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Progesterone receptors in the thymus are required for thymic involution during pregnancy and for normal fertility
Open accessAbstract
Thymocyte development is reported to be inhibited by pregnancy, although the impact of this effect on fertility is unknown. We demonstrate, using progesterone receptor null mutant mice, that the inhibitory effects of pregnancy hormones on T cell development require the presence of functional progesterone receptor (PR). A combination of hysterectomy, thymic immunohistochemistry, and transplant studies reveals that local expression of PR in thymic stromal cells is specifically required for thymic involution to occur. These cells, under the influence of progesterone, block T cell development at the early pre-T cell (CD3−CD44+CD25+) stage of development via a paracrine mechanism. In addition, age-related thymic involution is shown to occur by a separate PR-independent mechanism. Finally, pregnancy studies with thymic transplants from progesterone receptor null mutant mice to wild-type female recipients demonstrate that thymic stromal PR is required for normal fertility. Together, these observations provide evidence for a PR-dependent paracrine mechanism that blocks very early T cell lymphopoiesis during pregnancy and is essential for normal fertility.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Wegmann, T. G., Lin, H., Guilbert, L., & Mosmann, T. R. (1993) · Immunology Today · doi:10.1016/0167-5699(93)90235-d · Cited by 2,852
Cited by
Subgroup of reproductive functions of progesterone mediated by progesterone receptor-B isoform
Mulac-Jericevic, B., Mullinax, R. A., DeMayo, F. J., Lydon, J. P., & Conneely, O. M. (2000) · Science · doi:10.1126/science.289.5485.1751 · Cited by 704
Self-citationConneely, O. M., Mulac-Jericevic, B., & Lydon, J. P. (2003) · Steroids · doi:10.1016/s0039-128x(03)00126-0 · Cited by 277
Self-citation
Metadata
- Authors
- Tibbetts, T. A., DeMayo, F., Rich, S., Conneely, O. M., & O’Malley, B. W.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1999-10-12
- Volume
- 96
- Issue
- 21
- Pages
- 12021-12026
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2032903055
- Cited by
- 171
- References
- 1
- FWCI
- 2.99
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Progesterone receptors in the thymus are required for thymic involution during pregnancy and for normal fertility. https://app.cochat.ai/papers/10.1073/pnas.96.21.12021
- The paper
- Tibbetts, T. A., DeMayo, F., Rich, S., Conneely, O. M., & O’Malley, B. W. (1999). Progesterone receptors in the thymus are required for thymic involution during pregnancy and for normal fertility. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.96.21.12021
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.