Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α

Research output: Contribution to journal › Article

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Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α. / Svensson, Daniel; Nebel, Daniel; Voss, Ulrikke; Ekblad, Eva; Nilsson, Bengt Olof.

In: Cell and Tissue Research, 30.06.2016, p. 1-10.

Research output: Contribution to journal › Article

Harvard

Svensson, D, Nebel, D, Voss, U, Ekblad, E & Nilsson, BO 2016, 'Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α', Cell and Tissue Research, pp. 1-10. https://doi.org/10.1007/s00441-016-2449-z

APA

Svensson, D., Nebel, D., Voss, U., Ekblad, E., & Nilsson, B. O. (2016). Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α. Cell and Tissue Research, 1-10. https://doi.org/10.1007/s00441-016-2449-z

CBE

Svensson D, Nebel D, Voss U, Ekblad E, Nilsson BO. 2016. Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α. Cell and Tissue Research. 1-10. https://doi.org/10.1007/s00441-016-2449-z

MLA

Svensson, Daniel et al. "Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α". Cell and Tissue Research. 2016, 1-10. https://doi.org/10.1007/s00441-016-2449-z

Vancouver

Svensson D, Nebel D, Voss U, Ekblad E, Nilsson BO. Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α. Cell and Tissue Research. 2016 Jun 30;1-10. https://doi.org/10.1007/s00441-016-2449-z

Author

Svensson, Daniel ; Nebel, Daniel ; Voss, Ulrikke ; Ekblad, Eva ; Nilsson, Bengt Olof. / Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α. In: Cell and Tissue Research. 2016 ; pp. 1-10.

RIS

TY - JOUR

T1 - Vitamin D-induced up-regulation of human keratinocyte cathelicidin anti-microbial peptide expression involves retinoid X receptor α

AU - Svensson, Daniel

AU - Nebel, Daniel

AU - Voss, Ulrikke

AU - Ekblad, Eva

AU - Nilsson, Bengt Olof

PY - 2016/6/30

Y1 - 2016/6/30

N2 - The biologically active form of vitamin D, 1α,25-dihydroxyvitamin D3 (1,25D3), has been reported to positively regulate the human cathelicidin anti-microbial peptide (CAMP) gene coding for LL-37, but the mechanisms are not completely understood. We have determined the expression of CAMP, vitamin D receptor (VDR), and the retinoid X receptor (RXR) isoforms in human skin and gingival tissue biopsies and investigated the signaling pathways involved in 1,25D3-induced upregulation of CAMP. Human skin and gingival biopsies exhibited few VDR-immunoreactive cells within the stratum basale, whereas rat colon enterocytes (positive control) possessed abundant VDR immunoreactivity. Nuclear VDR immunoreactivity was demonstrated in human skin keratinocytes (HaCaT cells). Gene analysis revealed that human skin biopsies expressed higher levels of both CAMP and RXRα mRNA than human gingival biopsies, whereas VDR and RXRβ transcript levels were similar in skin and gingiva. In HaCaT cells, treatment with 1,25D3 (5 nM and 1 μM) for 4 and 24 h up-regulated CAMP mRNA several fold, and treatment with 1,25D3 for 24 h increased protein expression of the pro-form of LL-37 (hCAP-18) by about 13 times. The 1,25D3-evoked stimulation of HaCaT CAMP expression was associated with attenuated VDR mRNA and protein expression. Treatment with RXRα short interfering RNA reversed the 1,25D3-induced CAMP expression in HaCaT cells, showing that RXRα is involved in the up-regulation of CAMP by 1,25D3. We conclude that the 1,25D3-evoked stimulation of CAMP expression in human skin keratinocytes is dependent on RXRα but is not associated with the up-regulation of VDR expression.

AB - The biologically active form of vitamin D, 1α,25-dihydroxyvitamin D3 (1,25D3), has been reported to positively regulate the human cathelicidin anti-microbial peptide (CAMP) gene coding for LL-37, but the mechanisms are not completely understood. We have determined the expression of CAMP, vitamin D receptor (VDR), and the retinoid X receptor (RXR) isoforms in human skin and gingival tissue biopsies and investigated the signaling pathways involved in 1,25D3-induced upregulation of CAMP. Human skin and gingival biopsies exhibited few VDR-immunoreactive cells within the stratum basale, whereas rat colon enterocytes (positive control) possessed abundant VDR immunoreactivity. Nuclear VDR immunoreactivity was demonstrated in human skin keratinocytes (HaCaT cells). Gene analysis revealed that human skin biopsies expressed higher levels of both CAMP and RXRα mRNA than human gingival biopsies, whereas VDR and RXRβ transcript levels were similar in skin and gingiva. In HaCaT cells, treatment with 1,25D3 (5 nM and 1 μM) for 4 and 24 h up-regulated CAMP mRNA several fold, and treatment with 1,25D3 for 24 h increased protein expression of the pro-form of LL-37 (hCAP-18) by about 13 times. The 1,25D3-evoked stimulation of HaCaT CAMP expression was associated with attenuated VDR mRNA and protein expression. Treatment with RXRα short interfering RNA reversed the 1,25D3-induced CAMP expression in HaCaT cells, showing that RXRα is involved in the up-regulation of CAMP by 1,25D3. We conclude that the 1,25D3-evoked stimulation of CAMP expression in human skin keratinocytes is dependent on RXRα but is not associated with the up-regulation of VDR expression.

KW - Cathelicidin

KW - Keratinocyte

KW - Retinoid X receptor

KW - Vitamin D

KW - Vitamin D receptor

UR - http://www.scopus.com/inward/record.url?scp=84976384416&partnerID=8YFLogxK

U2 - 10.1007/s00441-016-2449-z

DO - 10.1007/s00441-016-2449-z

M3 - Article

C2 - 27357804

AN - SCOPUS:84976384416

SP - 1

EP - 10

JO - Cell and Tissue Research

JF - Cell and Tissue Research

SN - 1432-0878

ER -