Research Paper Volume 16, Issue 3 pp 2005—2025

The anti-aging effect of vitamin D and vitamin D receptor in Drosophila midgut

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Figure 5. EC-specific VDR knockdown increases the number of Pros+ cells. (A) EC-specific VDR knockdown increases Pros+ cell number. Flies carrying the Myots>GFP or Myots>GFP+VDRRi genotypes were incubated at 29° C for 1 week. The whole guts of flies were dissected, fixed, and labeled with anti-Pros (red) and anti-GFP (green) antibodies and DAPI (blue). The original magnification is 200×. (B) Frequency of Pros+ cells per total cells. Three-day-old females were shifted to 29° C for 1 week, and their dissected guts were fixed and immunostained with anti-Pros (red) and anti-GFP (green) antibodies and DAPI (blue). The Pros+ cell numbers were recorded with respect to the total cells of these guts. Data (mean ± standard error) in Myots>GFP or Myots>GFP+VDRRi flies were collated from 7459 and 7992 total cells of 19 guts each, respectively. P-values were determined using Student’s t-test. P<0.0001 compared with Myots>GFP flies.