Adenosine A receptor agonist improves epidermal barrier integrity in a murine model of epidermal hyperplasia.

Adenosine regulates multiple physiological processes through the activation of four receptor subtypes, of which the A adenosine receptor (AAR) has the lowest affinity for adenosine. Being the adenosine receptor subtype most prominently expressed in epidermis, we recently described the antiproliferative and anti-inflammatory effect of the selective AAR agonist BAY60-6583 (BAY) in human keratinocytes stimulated with 12-O-tetradecanoylphorbol-13-acetate (TPA), so we sought to establish the effect of topical application of BAY in a model of murine epidermal hyperplasia. Topical application of BAY (1 or 10 μg/site) prevented the inflammatory reaction and skin lesions induced by TPA, minimizing hyperproliferation and acanthosis, as well as the expression of specific markers of proliferative keratinocytes.

Searching for Frataxin Function: Exploring the Analogy with Nqo15, the Frataxin-like Protein of Respiratory Complex I from .

Nqo15 is a subunit of respiratory complex I of the bacterium , with strong structural similarity to human frataxin (FXN), a protein involved in the mitochondrial disease Friedreich's ataxia (FRDA). Recently, we showed that the expression of recombinant Nqo15 can ameliorate the respiratory phenotype of FRDA patients' cells, and this prompted us to further characterize both the Nqo15 solution's behavior and its potential functional overlap with FXN, using a combination of in silico and in vitro techniques. We studied the analogy of Nqo15 and FXN by performing extensive database searches based on sequence and structure.

Direct Cysteine Desulfurase Activity Determination by NMR and the Study of the Functional Role of Key Structural Elements of Human NFS1.

The mitochondrial cysteine desulfurase NFS1 is an essential PLP-dependent enzyme involved in iron-sulfur cluster assembly. The enzyme catalyzes the desulfurization of the l-Cys substrate, producing a persulfide and l-Ala as products. In this study, we set the measurement of the product l-Ala by NMR in vitro by means of H NMR spectra acquisition.

DEI co-mentoring circles for clinical research professionals: A pilot project and toolkit.

Background: There have been a number of federal policies and guidance's impacting diversity, equity, inclusion, and accessibility (DEI) in clinical research. While these are needed, they have not diminished the gaps related to clinical trial recruitment, research professional's capacity for cultural competence, and clinical research professional role development. Mentoring and co-mentoring circles have traditionally been used in Medicine, but until now had not been used for workforce development of clinical research professionals (CRPs).