Biological Effects of Hyaluronic Acid-Based Dermal Fillers and Laser Therapy on Human Skin Models

September 2020 | Volume 19 | Issue 9 | Features | 897 | Copyright © September 2020

Published online August 24, 2020

Laura Huth PhDa, Yvonne Marquardt a, Ruth Heise PhDa, Katharina Fietkau a, Jens Malte Baron MDa,b, Sebastian Huth PhDa*

aDepartment of Dermatology and Allergology, Medical Faculty, RWTH Aachen University, Aachen, Germany bInterdisciplinary Center for Laser Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany

*Sebastian Huth and Jens Malte Baron contributed equally to this work.

thickness and prove the proliferating effects of these products on epidermal cells on the molecular level. Interestingly, HAderived products revealed a specific upregulation pattern of chemokines such as CXCL5 and CCL20, in contrast to PLLAbased injectable dermal fillers. These data suggest a secondary effect of the HA-based compounds on the immune cells of the skin, especially monocytes and macrophages. Moreover, we detected that primarily HA fillers with fine particles promote collagen synthesis, which in previous studies was associated with increased TGF-β signaling.3

So far, scientific knowledge about the combined use of HA fillers and laser treatment is still limited.4 Our results revealed synergistic effects of fractional ablative laser treatment and injection of HA dermal fillers supporting a combination of both treatments. This combined treatment promotes tissue modulators such as Serpin E1, which plays a key role in the cutaneous wound repair program.5

The present study showed that skin models are a reliable tool to investigate the molecular effects of dermal fillers and their combination with laser treatment.


The authors have no relevant conflicts to report.


This work was partially supported by a grant from Galderma.


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Laura Huth PhD