Neutrophils, an emerging new therapeutic platform.

Neutrophils possess unique characteristics that render them indispensable to health, and patients with irregular neutrophil counts or functions suffer from increased morbidity and mortality. As neutrophils are short-lived postmitotic cells, genetic aberrations cannot be corrected directly in neutrophils and must be targeted in their progenitors. Neutrophils are increasingly being contemplated for a range of therapeutic applications, including restoration or modulation of immune function and targeting of solid tumors. This review addresses the state-of-the-art in neutrophil transfusions and their possible applications for infectious disease prevention and treatment. It offers a landscape of the most recent gene therapy approaches to address neutrophil-related genetic diseases. We also discuss how ongoing research could broaden the applicability of neutrophil-based therapies to solid cancer treatments and beyond.

A pseudovirus-based platform to measure neutralizing antibodies in Mexico using SARS-CoV-2 as proof-of-concept.

The gold-standard method to evaluate a functional antiviral immune response is to titer neutralizing antibodies (NAbs) against a viral pathogen. This is historically performed using an in vitro assay of virus-mediated infection, which requires BSL-3 facilities. As these are insufficient in Latin American countries, including Mexico, scant information is obtained locally about viral pathogens NAb, using a functional assay. An alternative solution to using a BSL-3 assay with live virus is to use a BSL-2-safe assay with a non-replicative pseudovirus. Pseudoviral particles can be engineered to display a selected pathogen's entry protein on their surface, and to deliver a reporter gene into target cells upon transduction. Here we comprehensively describe the first development of a BSL-2 safe NAbs-measuring functional assay in Mexico, based on the production of pseudotyped lentiviral particles. As proof-of-concept, the assay is based on Nanoluc luciferase-mediated luminescence measurements from target cells transduced with SARS-CoV-2 Spike-pseudotyped lentiviral particles. We applied the optimized assay in a BSL-2 facility to measure NAbs in 65 serum samples, which evidenced the assay with 100% sensitivity, 86.6% specificity and 96% accuracy. Overall, this is the first report of a BSL-2 safe pseudovirus-based functional assay developed in Mexico to measure NAbs, and a cornerstone methodology necessary to measure NAbs with a functional assay in limited resources settings.

Transitioning ifosfamide chemotherapy regimens to the ambulatory setting: reviewing cost savings and safety profile.

PURPOSE: To characterize and compare both the outcome and cost of treatment of outpatient (OP) and inpatient (IP) ifosfamide therapy. METHODS: A single-center retrospective chart review of patients 18 years and older receiving ifosfamide therapy. The primary endpoint compares and evaluates the side effect profiles of ifosfamide-treated patients in the OP/IP settings. The adverse event grading system was characterized using the CTCAE Version 5.0. The highest grade was documented per cycle. The secondary endpoint of this study compares the costs of OP/IP therapy. It was assumed that the cost of medication was equivalent for IP/OP treatments. The cost saved with OP administration was determined by the average cost of hospital stay for IP admission. RESULTS: Ifosfamide therapy of 86 patients (57 OP, 29 IP) was reviewed. The predominant OP regimens were doxorobucin-ifosfamide-mesna (AIM) with 43.9% and ifosfamide-etoposide (IE) with 29.8%. Grade 4 anemia, thrombocytopenia, and neutropenia were most frequent in IP vs OP therapies (22.9% IP vs 4.3% OP, 21.6% IP vs 9.2% OP, and 22.8% IP vs 19.6% OP respectively). Neutropenic fever (NF) occurred in 20 OP patients which were predominantly treated with AIM or IE and led to average hospital stay of 6 days. Neurotoxicity, treated with methylene blue (MB) occurred in 4 OP patients. OP therapy saved a total of 783 hospital days, leading to a cost savings of $2,103,921. CONCLUSIONS: Transitioning ifosfamide to the OP setting is feasible for academic and community infusion centers with the OP administration being safe, well-tolerated, and associated with decreased total cost of care. The current processes allow for safe transition of chemotherapy of chemotherapy under times of COVID.

The biomedical engineer as a driver for Health Technology innovation.

Health Technology has played a mayor role on most of the fundamental advances in medicine, in the last 30 years. Right now, beginning the XXI Century, it is well accepted that the most important revolution expected in Health Care is the empowerment of the individuals on their own health management. Innovation in health care technologies will continue being paramount, not only in the advances of medicine and in the self health management of patients but also in allowing the sustainability of the public health care becomes more important, the role of the biomedical engineer will turn to be more crucial for the society. The paper targets the development of new curricula for the Biomedical Engineers, The needs of evolving on his different fields in which the contribution of the Biomedical Engineer is becoming fundamental to drive the innovation that Health Care Technology Industry must provide to continue improving human health through cross-disciplinary activities that integrate the engineering sciences with the biomedical sciences and clinical practice.