MST1 and Renal cyst: In nphp1KO MDCK cells, nphp1KO mice and NPH1 patients’ kidneys, Kibra, p‐MST1/2, p‐LATS and p‐YAP exhibited a notable increase in levels, with an even greater elevation observed in renal cyst cells, indicating the Hippo pathway activated in these nphp1‐deficient contexts.