Unravelling B cell dynamics in hidradenitis suppurativa pathogenesis

Grantee: Joshua Moreau, Assistant Professor, Oregon Health and Science University

Amount: DKK 2,221,706

Grant category: Research Grants in open competition

Year: 2023

Geography: USA

Joshua Moreau’s project investigates the potential role of B cells (antibody-producing immune cells) in the inflammatory skin disease, hidradenitis suppurativa to create a foundation for future therapeutic approaches.

Hidradenitis suppurativa (HS) is a painful skin disease characterized by highly inflamed lesions. While the causes of lesion progression are not well understood, this inflammation is often marked by accumulation of an immune cell subset called B cells. In certain contexts, B cells cause damage to the body and perpetuate inflammatory responses, however, for this to happen these cells need to undergo a process of maturation to become antibody-producing plasma cells. In this project, Joshua Moreau aims to understand if B cells accumulating in HS affected skin mature into disease perpetuating plasma cells.

To do this, Joshua Moreau and his team will utilize a technique called spatial transcriptomics technology that allows them to track B cell maturation across a skin sample. This, in turn, will allow them to determine if plasma cells originate at the site of inflammation in the skin.

Additionally, the team will explore avenues for blocking B cell maturation specifically within the skin using advanced human skin tissue culturing approaches.

Collectively, these experiments may provide currently missing insight into the disease-causing potential of B cells in HS and form a foundation for targeting them therapeutically.

Towards a better understanding of the chronic hand-and-foot eczema spectrum via a multi-omics tape-strip characterization

Grantee: Emma Guttman, Professor and Chair, Icahn School of Medicine at Mount Sinai

Amount: DKK 3,418,680

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.

Orchestration of sensory innervation by hair follicle stem cells and its implication in cutaneous neuropathy

Grantee: Chiwei Xu, Postdoc, Rockefeller University

Amount: DKK 2,929,313

Grant category: Research Grants in open competition

Year: 2023

Geography: USA

Charles (Chiwei) Xu’s project aims to investigate the molecular basis for cutaneous neuropathies (i.e., sensation of pain, numbness or fatigue caused by neural damage).

Mouse skin contains a dense network of nerve endings and is a good system to study interactions between the peripheral nervous system and barrier tissues in mammals. Intriguingly, axons (the elongated, signal-transducing sections) of sensory neurons are closely associated with hair follicle stem cells (HFSCs) in the skin, and Charles Xu has identified ligand-receptor pairs that mediate signaling between the two cell types. Specifically, he has identified the HFSC-derived parathyroid-hormone-like hormone (Pthlh) as a top candidate factor required for sensory innervation. Charles Xu has also established that Pthlh signals through the receptor Pth1r in sensory neurons. To further study crosstalk between HFSCs and sensory neurons, he has established a 3D co-culture system of these cells. Using that system, he aims to further characterize Pthlh-Pth1r signaling in the context of direct HFSC-sensory neuron interactions in vitro. He also aims to investigate the physiological relevance in an in vivo mouse model. In doing so, Charles Xu and his team aim to establish a versatile technical platform to study cutaneous neuropathies, which are common disorders where there is currently a lack of both mechanistic understanding and effective treatment.

The LEO Foundation Award 2023 – Region Americas

Grantee: Dr. William Damsky, Assistant Professor, Yale University

Amount: USD 100,000

Grant category: LEO Foundation Awards

Year: 2023

Geography: USA

Dr. William Damsky is Assistant Professor at Yale School of Medicine in the US.

He receives the award for his noteworthy contributions to the understanding of inflammatory skin diseases, as he particularly looks to expand our presently incomplete understanding of the cutaneous diseases Sarcoidosis and Granuloma Annulare (GA).

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2023 ISID Travel Award Grants

Grantee: International Society for Investigative Dermatology

Amount: USD 200,000

Grant category: Research Networking

Year: 2023

Geography: USA

In connection with the inaugural ISID meeting in Japan 2023, approximately 2000 skin researchers and clinicians from around the world will be in attendance. Travel Award Grants allow young investigators to apply for a Travel Award from their region, with the potential to receive USD 2000 to cover a significant proportion of airfare, hotel and food expenses connected with attendance of ISID 2023.

About the ISID

‘The ambitious mission of the ISID is to unite all organizations of scientists dedicated to investigative dermatology and cutaneous biology with the purpose of encouraging and facilitating collaboration and to jointly sponsor and support an international, abstract driven, peer reviewed scientific meeting every 5 years.’

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ISID Young Investigator Collegiality Event

Grantee: International Society for Investigative Dermatology

Amount: USD 40,000

Grant category: Research Networking

Year: 2023

Geography: USA

The Young Investigator Collegiality Event is held in connection with ISID 2023 in Tokyo – and seeks to support the meaningful connections that take place at this meeting. The Young Investigator Collegiality Event is held at a popular Tokyo venue, and aims to facilitate connections amongst individuals of diverse scientific and geographic backgrounds, in an effort to build the skin biology community and foster multidisciplinary collaboration.

About the ISID

‘The ambitious mission of the ISID is to unite all organizations of scientists dedicated to investigative dermatology and cutaneous biology with the purpose of encouraging and facilitating collaboration and to jointly sponsor and support an international, abstract driven, peer reviewed scientific meeting every 5 years.’

More information