Mead Gilmore (beanchin7)
Extracellular vesicles (EVs) are membrane-coated particles secreted by virtually all cell types in response to different stimuli, both in physiological and pathological conditions. Their content generally reflects their biological functions and includes a variety of molecules, such as nucleic acids, proteins and cellular components. The role of EVs as signaling vehicles has been widely demonstrated. In particular, they are actively involved in the pathogenesis of several hematological malignancies (HM), mainly interacting with a number of target cells and inducing functional and epigenetic changes. In this regard, by releasing their cargo, EVs play a pivotal role in the bilateral cross-talk between tumor microenvironment and cancer cells, thus facilitating mechanisms of immune escape and supporting tumor growth and progression. Recent advances in high-throughput technologies have allowed the deep characterization and functional interpretation of EV content. In this review, the current knowledge on the high-throughput technology-based characterization of EV cargo in HM is summarized.Structures of protein-drug-complexes provide an atomic level profile of drug-target interactions. In this work, the three-dimensional arrangements of amino acid side chains in known drug binding sites (substructures) were used to search for similarly arranged sites in SARS-CoV-2 protein structures in the Protein Data Bank for the potential repositioning of approved compounds. We were able to identify 22 target sites for the repositioning of 16 approved drug compounds as potential therapeutics for COVID-19. Using the same approach, we were also able to investigate the potentially promiscuous binding of the 16 compounds to off-target sites that could be implicated in toxicity and side effects that had not been provided by any previous studies. The investigations of binding properties in disease-related proteins derived from the comparison of amino acid substructure arrangements allows for effective mechanism driven decision making to rank and select only the compounds with the highest potential for success and safety to be prioritized for clinical trials or treatments. The intention of this work is not to explicitly identify candidate compounds but to present how an integrated drug repositioning and potential toxicity pipeline using side chain similarity searching algorithms are of great utility in epidemic scenarios involving novel pathogens. In the case of the COVID-19 pandemic caused by the SARS-CoV-2 virus, we demonstrate that the pipeline can identify candidate compounds quickly and sustainably in combination with associated risk factors derived from the analysis of potential off-target site binding by the compounds to be repurposed.Multicultural behavior analysts must stand together to address the issues of systemic racism collectively, show solidarity, and support Black lives. This article discusses the role of culturally and linguistically diverse behavior analysts, the mechanisms underlying barriers to showing solidarity, and the mechanisms required for cultural evolution to promote a compassionate and nurturing approach to racial equity. It is critical that non-Black people of color actively participate in antiracist advocacy to express solidarity with the Black Lives Matter movement.The COVID-19 pandemic has presented practitioners of applied behavior analysis (ABA) with new and uncharted challenges. Upholding ethical responsibilities while navigating an international public health crisis has opened areas of uncertainty that have no precedent. Although there is general guidance on how to respond ethically from the Behavior Analyst Certification Board (BACB) in their publication specific to the COVID-19 crisis (BACB, 2020, March 29, Ethics Guidance for ABA Providers During COVID-19 Pandemic, retrieved from https//), there remains a huge responsibility on the individu