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Heterozygous Men1 Mutant Mice Develop a Range of Endocrine Tumors Mimicking Multiple Endocrine Neoplasia Type 1

Open access
Bertolino, Philippe, Tong, Wei-Min, Galendo, Dominique, Wang, Zhao-Qi, Zhang, Chang-Xian·2003·Molecular Endocrinology

Abstract

Multiple endocrine neoplasia type 1 (MEN1) is a hereditary syndrome characterized by the occurrence of multiple endocrine tumors of the parathyroid, pancreas, and anterior pituitary in patients. To study tumorigenesis related to the MEN1 syndrome, we have generated Men1 knockout mice using the gene targeting approach. Heterozygous Men1 mutant mice developed the same range of major endocrine tumors as is seen in MEN1 patients, affecting the parathyroid, pancreatic islets, pituitary and adrenal glands, as well as the thyroid, and exhibiting multistage tumor progression with metastatic potential. In particular, extrapancreatic gastrinoma, pancreatic glucagonoma, and mixed hormone-producing tumors in islets were observed. In addition, there was a high incidence of gonadal tumors of endocrine origin, i.e. Leydig cell tumors, and ovary sex-cord stromal cell tumors in heterozygous Men1 mutant mice. Hormonal disturbance, such as abnormal PTH and insulin levels, was also observed in these mice. These tumors were associated with loss of heterozygosity of the wild-type Men1 allele, suggesting that menin is involved in suppressing the development of these endocrine tumors. All of these features are reminiscent of MEN1 symptoms in humans and establish heterozygous Men1 mutant mice as a suitable model for this disease.

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Metadata

Authors
Bertolino, P., Tong, W.-M., Galendo, D., Wang, Z.-Q., & Zhang, C.-X.
Venue
Molecular Endocrinology
Published
2003-09
Volume
17
Issue
9
Pages
1880-1892
ISSN
  • 0888-8809 (ISSN-L)
  • 1944-9917
OpenAlex
W2150212366
Cited by
255
References
26
FWCI
7.85
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Heterozygous Men1 Mutant Mice Develop a Range of Endocrine Tumors Mimicking Multiple Endocrine Neoplasia Type 1. https://app.cochat.ai/papers/10.1210/me.2003-0154
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Bertolino, P., Tong, W.-M., Galendo, D., Wang, Z.-Q., & Zhang, C.-X. (2003). Heterozygous Men1 Mutant Mice Develop a Range of Endocrine Tumors Mimicking Multiple Endocrine Neoplasia Type 1. Molecular Endocrinology. https://doi.org/10.1210/me.2003-0154

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