Vitamin D deficiency in mice impairs colonic antibacterial activity and predisposes to colitis

Endocrinology. 2010 Jun;151(6):2423-32. doi: 10.1210/en.2010-0089. Epub 2010 Apr 14.


Vitamin D insufficiency is a global health issue. Although classically associated with rickets, low vitamin D levels have also been linked to aberrant immune function and associated health problems such as inflammatory bowel disease (IBD). To test the hypothesis that impaired vitamin D status predisposes to IBD, 8-wk-old C57BL/6 mice were raised from weaning on vitamin D-deficient or vitamin D-sufficient diets and then treated with dextran sodium sulphate (DSS) to induce colitis. Vitamin D-deficient mice showed decreased serum levels of precursor 25-hydroxyvitamin D(3) (2.5 +/- 0.1 vs. 24.4 +/- 1.8 ng/ml) and active 1,25-dihydroxyvitamin D(3) (28.8 +/- 3.1 vs. 45.6 +/- 4.2 pg/ml), greater DSS-induced weight loss (9 vs. 5%), increased colitis (4.71 +/- 0.85 vs. 1.57 +/- 0.18), and splenomegaly relative to mice on vitamin D-sufficient chow. DNA array analysis of colon tissue (n = 4 mice) identified 27 genes consistently (P < 0.05) up-regulated or down-regulated more than 2-fold in vitamin D-deficient vs. vitamin D-sufficient mice, in the absence of DSS-induced colitis. This included angiogenin-4, an antimicrobial protein involved in host containment of enteric bacteria. Immunohistochemistry confirmed that colonic angiogenin-4 protein was significantly decreased in vitamin D-deficient mice even in the absence of colitis. Moreover, the same animals showed elevated levels (50-fold) of bacteria in colonic tissue. These data show for the first time that simple vitamin D deficiency predisposes mice to colitis via dysregulated colonic antimicrobial activity and impaired homeostasis of enteric bacteria. This may be a pivotal mechanism linking vitamin D status with IBD in humans.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Colitis / blood
  • Colitis / chemically induced
  • Colitis / metabolism*
  • Colitis / microbiology
  • Colon / metabolism
  • Colon / microbiology
  • Colon / pathology
  • DNA, Bacterial / genetics
  • Dextran Sulfate / adverse effects
  • Flow Cytometry
  • Immunohistochemistry
  • Mice
  • Mice, Inbred C57BL
  • Oligonucleotide Array Sequence Analysis
  • Reverse Transcriptase Polymerase Chain Reaction
  • Ribonuclease, Pancreatic / metabolism
  • Splenomegaly / blood
  • Splenomegaly / chemically induced
  • Splenomegaly / metabolism*
  • Vitamin D / analogs & derivatives
  • Vitamin D / blood
  • Vitamin D Deficiency / physiopathology*
  • Weight Loss


  • DNA, Bacterial
  • Vitamin D
  • 1,25-dihydroxyvitamin D
  • Dextran Sulfate
  • Ang4 protein, mouse
  • Ribonuclease, Pancreatic