Analysis opens new avenues for topical therapy of pores and skin fibrosis

Collagen, the primary part of the pores and skin’s extracellular matrix, could cause a pathological situation whether it is in extra. Making use of an electrical discipline to the pores and skin impacts collagen pathways, quickly decreasing collagen manufacturing and rising its degradation. That is what researchers from the CNRS, Université Toulouse III – Paul Sabatier and Toulouse INP have simply demonstrated, together with an Israeli researcher. Revealed on 21 October 2021 within the Journal of Investigative Dermatology, these outcomes open new therapeutic views for the topical therapy of pores and skin fibrosis characterised by extreme collagen deposition.

When an electrical discipline is utilized round a tumour, it “permeabilizes” the cells regionally and quickly. This permeabilization ensures, for instance, the huge entry of anticancer molecules into cells and tissues, which reduces the quantity of doses injected into sufferers and limits negative effects: that is the hospital-based method of electrochemotherapy that has been used to deal with pores and skin tumours for the reason that Eighties.

Curiously, physicians utilizing this methodology, and for that matter the sufferers themselves, have noticed an aesthetic and useful therapeutic of the websites handled on this approach. Nevertheless, the mechanisms behind this commentary had by no means been elucidated.

A analysis group, involving researchers from the CNRS, the Université Toulouse III – Paul Sabatier and Toulouse INP, used a extremely refined artificial pores and skin mannequin, particularly used to deal with giant burns. This synthetic pores and skin mannequin has the benefit of being wealthy in extracellular matrix, corresponding to human pores and skin by way of composition and group. This matrix is especially composed of collagen, well-known in cosmetics for its function within the pores and skin’s mechanical properties.

Collagen, like the entire extracellular matrix, is finely regulated, particularly by its degradation by specialised enzymes which stop it from being in extra. If this stability is disturbed, the matrix reaches a pathological or illness state, as is the case with fibrotic or hypertrophic scars, characterised by extreme collagen deposition.

Utilizing this synthetic pores and skin mannequin, scientists have proven that making use of an electrical discipline to the pores and skin impacts many genes that affect collagen manufacturing and maturation. As quickly as 4 hours after making use of the electrical discipline, much less collagen is produced. This lasts for a number of days. As well as, enzymes that degrade collagen have elevated exercise for at the least 48 hours.

The applying of an electrical discipline to the pores and skin due to this fact presents an amazing potential for future therapeutic use within the therapy of pores and skin fibrosis.


CNRS (Délégation Paris Michel-Ange)

Journal reference:

Gouarderes, S., et al. (2021) Pulsed electrical fields induce extracellular matrix transforming via MMPs activation and decreased collagen manufacturing. Journal of Investigative Dermatology.

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