A representative hematoxylin and eosin staining of UV-induced skin tumor or skin obtained from SKH-1 mice colonized by S. epidermidis 1457 or MO34, respectively, treated with UV-B for 12 weeks.

We update our services in dermocosmetology for Skin Pigmentation and Oxidative Stress

Summer is alway a good time to improve our services. Then we are very happy to introduce our updated Skin Pigmentation and Oxidative Stress services. Pigmentation is particularly regulated  at  the  cellular  level  by  melanocytes synthesizing  melanin  within  melanosomes,  which  can be  produced  in  varying  sizes,  numbers,  and  densities. In order to evaluate Read more…

Applications for 3D in vitro models with BIOMIMESYS® Adipose Tissue and preview of BIOMIMESYS® Skin

3D cell culture systems have recently emerged as promising tools for reproducing the cellular environment and the organization of tissues/organs, where cells are connected to each other and to the surrounding extracellular matrix (ECM). In this webinar we will focus on BIOMIMESYS® Adipose Tissue and on the ongoing development of Read more…

On the importance of extracellular matrix of the skin for efficient 3D cell culture models

The extracellular components of the skin can be divided into fiber-forming structural molecules, nonfiber-forming structural molecules, and “matricellular proteins”. Optimal quantities of different matrix components and their delicate interactions are necessary to maintain normal physiologic properties of the skin. Fiber-forming molecules provide a structure to the ECM by creating a Read more…

An explanation of assymetric distribution of melanin in the epidermis !

The skin performs important function, including sun protection. Melanin distribution in the epidermis plays a role in photoprotection. Solar radiations induced epidermal DNA damages, mostly in the basal layer, and is an established caused of keratinocytes cancers. Melanin distribution in human epidermis is essentialy located in the basal layer. However, Read more…

3D reconstruction X63

P. acnes inhibits human melanocytes survival after UVB radiation which could prevent melanoma-genesis causes by DNA damage

Melanoma is a type of skin cancer that develops from cells called melanocytes, is one of the fastest-growing and deadliest cancer in the world. It usually caused by DNA damage resulting from exposure to ultraviolet (UV) light from the sun. P. acnes is a ubiquitous gram-positive anaerobic bacterium present in Read more…

A representative hematoxylin and eosin staining of UV-induced skin tumor or skin obtained from SKH-1 mice colonized by S. epidermidis 1457 or MO34, respectively, treated with UV-B for 12 weeks.

Could skin microbiota reduce cancer risk?

Researchers from the Department of Dermatology of the University of California have a commensal strain of Staphylococcus epidermidis that protects against skin neoplasia. This strain produces 6-N-hydroxyaminopurine (6-HAP), a molecule that inhibits DNA polymerase activity. Mice colonized with this strain have a reduced incidence of ultraviolet-induced tumors compared to control mice (colonized with Read more…