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Author:

Zheng Zhenxiao (Zheng Zhenxiao.) | Xu Aie (Xu Aie.) | Jiang Yuzhi (Jiang Yuzhi.) | Wei Xiaodong (Wei Xiaodong.) | Jin Xianqiang (Jin Xianqiang.) | Shen Jing (Shen Jing.) | Zheng Han (Zheng Han.) | Zheng Junhui (Zheng Junhui.) | Zhang Xiaojun (Zhang Xiaojun.) | Zeng Yanjun (Zeng Yanjun.)

Indexed by:

EI Scopus SCIE

Abstract:

Background: Nonablative laser has been used for the treatment and prevention of skin aging for many years. Although the mechanism has not been elucidated, histological evaluation showed that the dermal fibroblasts and its collagen production should be the main target for this rejuvenation. In order to determine the effects of a 1320 nm nonablative laser on the human dermal fibroblasts, the two main secretion factors, basic fibroblast growth factor (bFGF) and transforming growth factor beta 1(TGF-beta 1), in vitro were detected. Methods: The human dermal fibroblasts were cultured and irradiated with a 1320 nm laser at the dose of 15, 20, and 24 J/cm(2) respectively. The number of fibroblasts was counted and the levels of bFGF and TGF-beta 1 were detected by enzyme-linked immunosorbent assay at the time points of 0, 24, 48, and 72 h after irradiation. Results: The results showed that both the number of fibroblasts and the secretion of bFGF increased after the irradiation at the dose of 20 and 24 J/cm(2) (P<0.05) compared with that of the control cells. The bFGF secretion in the group exposed to 20 J/cm(2) was more significant than that of 24 J/cm(2), and the peak level was 24 h after irradiation. The level of TGF-beta 1 secretion decreased after irradiation in a dose-dependent manner (15 and 20 J/cm(2), both P<0.05; 24 J/cm(2), P<0.01), and reached a nadir at 24 h. Conclusion: Our results suggested that the 1320 nm nonablative laser accelerates the vitality of fibroblasts, promotes the secretion of bFGF, and inhibits TGF-beta 1 secretion by fibroblasts.

Keyword:

bFGF TGF-beta 1 nonablative skin photorejuvenation immunohistochemistry laser

Author Community:

  • [ 1 ] [Zheng Zhenxiao]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 2 ] [Xu Aie]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 3 ] [Wei Xiaodong]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 4 ] [Jin Xianqiang]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 5 ] [Shen Jing]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 6 ] [Zheng Han]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 7 ] [Zheng Junhui]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China
  • [ 8 ] [Jiang Yuzhi]Shanghai Jiao Tong Univ, Sch Med, Ruijin Hosp, Shanghai Burn Inst, Shanghai, Peoples R China
  • [ 9 ] [Zhang Xiaojun]Beijing Univ Technol, Biomech & Med Informat Inst, Beijing, Peoples R China
  • [ 10 ] [Zeng Yanjun]Beijing Univ Technol, Biomech & Med Informat Inst, Beijing, Peoples R China

Reprint Author's Address:

  • [Zheng Zhenxiao]Third Peoples Hosp Hangzhou, Dept Dermatol, Hangzhou 310009, Zhejiang, Peoples R China

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Source :

SKIN RESEARCH AND TECHNOLOGY

ISSN: 0909-752X

Year: 2011

Issue: 4

Volume: 17

Page: 505-509

2 . 2 0 0

JCR@2022

ESI Discipline: CLINICAL MEDICINE;

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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