Hsp70 knockdown by sirna decreased collagen production in keloid fibroblasts

Jung U. Shin, Won Jai Lee, Thanh Nga Tran, Inhee Jung, JuHee Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Purpose: There are currently no consistently effective treatments for the excessive collagen produced by keloid fibroblasts. Previously, we reported that heat shock protein 70 (Hsp70) is up-regulated in keloid fibroblasts and keloid tissue. We, therefore, investigated whether Hsp70 is related to excessive collagen production in keloid fibroblasts. Materials and Methods: We inhibited Hsp70 in keloid fibroblasts by RNA interference and examined the resulting collagen expression. Thus, we selected small interfering RNAs (siRNAs) specific for human Hsp70, transfected them into keloid fibroblasts, and evaluated the resulting phenotypes and protein production using real-time polymerase chain reaction (PCR), Western blot, and a collagen assay. Results: The siRNAs dramatically suppressed Hsp70 mRNA expression, resulting in a decrease in collagen production in the keloid fibroblasts compared with controls. The siRNAs did not influence the viability of the keloid fibroblasts. Conclusion: Hsp70 overexpression likely plays an important role in the excessive collagen production by keloid fibroblasts. RNA interference has therapeutic potential for the treatment of keloids.

Original languageEnglish
Pages (from-to)1619-1626
Number of pages8
JournalYonsei medical journal
Volume56
Issue number6
DOIs
Publication statusPublished - 2015 Nov 1

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Keloid
HSP70 Heat-Shock Proteins
Small Interfering RNA
Collagen
Fibroblasts
RNA Interference
Real-Time Polymerase Chain Reaction
Western Blotting
Phenotype

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Shin, Jung U. ; Lee, Won Jai ; Tran, Thanh Nga ; Jung, Inhee ; Lee, JuHee. / Hsp70 knockdown by sirna decreased collagen production in keloid fibroblasts. In: Yonsei medical journal. 2015 ; Vol. 56, No. 6. pp. 1619-1626.
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Hsp70 knockdown by sirna decreased collagen production in keloid fibroblasts. / Shin, Jung U.; Lee, Won Jai; Tran, Thanh Nga; Jung, Inhee; Lee, JuHee.

In: Yonsei medical journal, Vol. 56, No. 6, 01.11.2015, p. 1619-1626.

Research output: Contribution to journalArticle

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