Title |
Impaired PIEZO1 function in patients with a novel autosomal recessive congenital lymphatic dysplasia
|
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Published in |
Nature Communications, September 2015
|
DOI | 10.1038/ncomms9329 |
Pubmed ID | |
Authors |
Viktor Lukacs, Jayanti Mathur, Rong Mao, Pinar Bayrak-Toydemir, Melinda Procter, Stuart M. Cahalan, Helen J. Kim, Michael Bandell, Nicola Longo, Ronald W. Day, David A. Stevenson, Ardem Patapoutian, Bryan L. Krock |
Abstract |
Piezo1 ion channels are mediators of mechanotransduction in several cell types including the vascular endothelium, renal tubular cells and erythrocytes. Gain-of-function mutations in PIEZO1 cause an autosomal dominant haemolytic anaemia in humans called dehydrated hereditary stomatocytosis. However, the phenotypic consequence of PIEZO1 loss of function in humans has not previously been documented. Here we discover a novel role of this channel in the lymphatic system. Through whole-exome sequencing, we identify biallelic mutations in PIEZO1 (a splicing variant leading to early truncation and a non-synonymous missense variant) in a pair of siblings affected with persistent lymphoedema caused by congenital lymphatic dysplasia. Analysis of patients' erythrocytes as well as studies in a heterologous system reveal greatly attenuated PIEZO1 function in affected alleles. Our results delineate a novel clinical category of PIEZO1-associated hereditary lymphoedema. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Canada | 1 | 25% |
United States | 1 | 25% |
Unknown | 2 | 50% |
Demographic breakdown
Type | Count | As % |
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Scientists | 3 | 75% |
Members of the public | 1 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 1% |
Italy | 1 | <1% |
Unknown | 157 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 42 | 26% |
Researcher | 28 | 18% |
Student > Bachelor | 13 | 8% |
Student > Doctoral Student | 10 | 6% |
Student > Master | 9 | 6% |
Other | 25 | 16% |
Unknown | 33 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 39 | 24% |
Agricultural and Biological Sciences | 26 | 16% |
Medicine and Dentistry | 19 | 12% |
Neuroscience | 15 | 9% |
Engineering | 3 | 2% |
Other | 22 | 14% |
Unknown | 36 | 23% |