Influence of protein malnutrition in the elderly on the immunomodulatory aspects of mesenchymal stromal cells and their action in the regulation of hematopoiesis

• Grant number: 21/08658-1
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2022
• End date: March 31, 2024
• Field of knowledge: Health Sciences - Medicine - Pathological Anatomy and Clinical Pathology
• Principal Investigator: Ricardo Ambrósio Fock
• Grantee: Ricardo Ambrósio Fock
• Host Institution: Faculdade de Ciências Farmacêuticas (FCF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: Primavera Borelli Garcia

Abstract

Hematopoiesis occurs in the bone marrow (BM) in regions called microenvironments, which modulate the processes of differentiation, proliferation and self-renewal of the hematopoietic stem cell (HSC). In recent years, the literature has given attention to the role of cells that comprise and form these microenvironments, especially the mesenchymal stromal cell. Additionally, elderly people usually suffer from some degree of nutritional deficiency, the most common being protein deficiency and aging and protein malnutrition are directly related to the impairment of hematopoiesis. Knowing that, and based on previous data that prove that aging and protein malnutrition compromise hematopoiesis, and that bone marrow microenvironment presents different modulators that act synergistically to influence the survival, proliferation and development of hematopoietic cells at all levels of differentiation, this project aims to evaluate some regulatory aspects of hematopoiesis, prioritizing the study of the mechanisms involved in the participation of mesenchymal stromal cells and evaluating aspects of the complex stromal regulation on hematopoiesis. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

NEVES, BRUNA ROBERTA OLIVEIRA; DE FREITAS, SUMARA; BORELLI, PRIMAVERA; ROGERO, MARCELO MACEDO; FOCK, RICARDO AMBROSIO. Delphinidin-3-O-glucoside in vitro suppresses NF-kB and changes the secretome of mesenchymal stem cells affecting macrophage activation. NUTRITION, v. 105, p. 9-pg., 2023-01-01. (18/25813-8, 21/08658-1)

LIMA, FABIANA DA SILVA; GONCALVES, CARLOS EDUARDO DA SILVA; FOCK, RICARDO AMBROSIO. A review of the role of zinc finger proteins on hematopoiesis. JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY, v. 80, p. 10-pg., 2023-08-31. (21/08658-1)

LIMA, FABIANA DA SILVA; GONCALVES, CARLOS EDUARDO DA SILVA; FOCK, RICARDO AMBROSIO. Zinc and aging: a narrative review of the effects on hematopoiesis and its link with diseases. NUTRITION REVIEWS, v. N/A, p. 13-pg., 2023-09-16. (21/08658-1)