Cyclin M2 (CNNM2) knockout mice show mild hypomagnesaemia and developmental defects.
Cyclin M2 (CNNM2) knockout mice show mild hypomagnesaemia and developmental defects.
复制标题
细胞周期蛋白M2 (CNNM2)敲除小鼠表现为轻度低镁血症和发育缺陷。
DOI:
10.1038/s41598-021-87548-6
复制
发表时间:
2021-04-15
影响因子:
4.6
通讯作者:
de Baaij JHF
中科院分区:
文献类型:
--
作者:
Franken GAC;Seker M;Bos C;Siemons LAH;van der Eerden BCJ;Christ A;Hoenderop JGJ;Bindels RJM;Müller D;Breiderhoff T;de Baaij JHF
Patients with mutations in Cyclin M2 (CNNM2) suffer from hypomagnesaemia, seizures, and intellectual disability. Although the molecular function of CNNM2 is under debate, the protein is considered essential for renal Mg2+ reabsorption. Here, we used a Cnnm2 knock out mouse model, generated by CRISPR/Cas9 technology, to assess the role of CNNM2 in Mg2+ homeostasis. Breeding Cnnm2+/− mice resulted in a Mendelian distribution at embryonic day 18. Nevertheless, only four Cnnm2−/− pups were born alive. The Cnnm2−/− pups had a significantly lower serum Mg2+ concentration compared to wildtype littermates. Subsequently, adult Cnnm2+/− mice were fed with low, control, or high Mg2+ diets for two weeks. Adult Cnnm2+/− mice showed mild hypomagnesaemia compared to Cnnm2+/+ mice and increased serum Ca2+ levels, independent of dietary Mg2+ intake. Faecal analysis displayed increased Mg2+ and Ca2+ excretion in the Cnnm2+/− mice. Transcriptional profiling of Trpm6, Trpm7, and Slc41a1 in kidneys and colon did not reveal effects based on genotype. Microcomputed tomography analysis of the femurs demonstrated equal bone morphology and density. In conclusion, CNNM2 is vital for embryonic development and Mg2+ homeostasis. Our data suggest a previously undescribed role of CNNM2 in the intestine, which may contribute to the Mg2+ deficiency in mice and patients.
登录
查看更多内容
影响因子:
3.8
作者:
Li, Mingjiang;Jiang, Jianmin;Yue, Lixia
通讯作者:
Yue, Lixia
影响因子:
1.9
作者:
Accogli, Andrea;Scala, Marcello;Capra, Valeria
通讯作者:
Capra, Valeria
DOI:
10.1113/jp275705
发表时间:
2018-03-01
期刊:
The Journal of physiology
影响因子:
--
作者:
Arjona FJ;de Baaij JHF
通讯作者:
de Baaij JHF
影响因子:
4.6
作者:
de Baaij JH;Arjona FJ;van den Brand M;Lavrijsen M;Lameris AL;Bindels RJ;Hoenderop JG
通讯作者:
Hoenderop JG
影响因子:
4.5
作者:
Arjona FJ;de Baaij JH;Schlingmann KP;Lameris AL;van Wijk E;Flik G;Regele S;Korenke GC;Neophytou B;Rust S;Reintjes N;Konrad M;Bindels RJ;Hoenderop JG
通讯作者:
Hoenderop JG