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Grant category: Research Grants in open competition

Year: 2021

Geography: USA

Melanocytes are pigment-producing skin cells. They serve as an excellent model for stem cell research because they are easily obtainable from the skin and have the potential to be modified into other types of cells. The aims of this project are to define molecular events that promote stem cell maintenance and to test if melanocyte stem cells can be transformed into other cell types (such as nerves).

Deborah Lang has created a unique transgenic mouse model that fluorescently marks melanocyte stem cells.  This model is an innovative and powerful tool to visualize and isolate pure stem cells without contaminating non-stem cells. The Lang lab, along with Andrey Sharov and other collaborators at Boston University, will investigate gene expression in the stem cells, and how these stem cells change into pigment-producing melanocytes. Further, the team will test the ability of the melanocyte stem cells to turn in to other cells, such as neurons and neuron-like cells.

This project will provide new insights into melanocyte stem cell function and flexibility to become other cell types. The potential long-term impact of this project is that it will provide insight on normal melanocyte function, melanocyte dysfunction and pathology, and stem cell therapy.

Grant category: Research Grants in open competition

Year: 2023

Geography: USA

The project of Emma Guttman aims to develop an improved understanding of the molecular basis of chronic hand and foot eczema to guide future treatment approaches.

Chronic hand and foot eczema is a highly prevalent disorder, affecting up to 15% of the overall population, and represents an enormous socio-economic and psychosocial burden. The condition is often refractory to conventional treatments. In addition, chronic hand and foot eczema shows considerable inter- and intra-patient heterogeneity, further complicating treatment options.

Importantly, overall pathophysiological mechanisms are still only insufficiently understood, as skin biopsies from these areas are very difficult to obtain due to the location in which it may implicate local pain, wounds, and visible scars. Thus, better sampling methods are urgently needed.

Emma Guttman and her team propose to use tape stripping, a non-invasive method that targets the outermost layers of the skin, to collect lesional and non-lesional skin samples. Through a multi-omics approach, including transcriptomic (looking at gene expression) and multiplex proteomic methods (looking at active proteins), these samples will be used for improved molecular and genetic understanding of chronic hand and foot eczema. Their study will include samples from adult patients with different forms of chronic hand and foot eczema, stratified for specific locations, severity, and clinical subtypes. Results will be compared to matched healthy control individuals.

If successful, results obtained from Emma Guttman’s investigation may identify disease-causing factors specific for chronic hand eczema subsets and locations, that could guide future targeted treatment approaches in a more personalized or stratified manner.