Subcellular Ca2+ signaling aspects in proliferation control of haemopoietic stem cells by interleukin-3 and granulocyte/macrophage colony stimulating factor

• Grant number: 15/24464-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2016
• End date: November 11, 2018
• Field of knowledge: Biological Sciences - Biochemistry - Molecular Biology
• Principal Investigator: Edgar Julian Paredes-Gamero
• Grantee: Marina Mastelaro de Rezende
• Host Institution: Instituto Nacional de Farmacologia (INFAR). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil
• Associated scholarship(s): 16/23787-4 - Wnt and Ca2+ signaling in normal and leukemic hematopoietic stem cell fate, BE.EP.DR

Abstract

Hematopoiesis is the process in which cells of lymphatic and hematopoieticsystems are produced starting from the precursors that have multipotency and selfrenewalcapabilities - the hematopoietic stem cells (HSC). To a proper mature progenymaintenance and production, there are many involved mechanisms, mainly in issues ofHSC proliferation and differentiation, in which most of them are modulated bycytokines. Besides cytokines and receptors diversity, an ubiquitous ion calcium (Ca2+)signaling can be observed. Intracellular Ca2+ is the most versatile second messenger,taking part in several processes, as proliferation, differentiation, cell death, contraction,secretion, and even fecundation and learning. Our group has shown that HSC stimulatedwith cytokines (IL-3, GM-CSF, G-CSF, M-CSF, SCF, IL-6, IL-7) presents small andoscillatory cytosolic variations of Ca2+ concentrations, what seems to be related toproliferation and differentiation processes. It is unknown which Ca2+ signalingmechanism modulate hematopoiesis however, time, intensity and location of these Ca2+variations seems to have roles in intracellular pathways that regulate hematopoiesis. Inseveral pathologies, such as leukemia, the cellular control mechanism of proliferationand differentiation (related to Ca2+ signaling) may be altered. The aim of this project isto investigate Ca2+ signals generated by cytokines (IL-3 and GM-CSF), consideringtime, intensity and location, and correlate the generated Ca2+ signals with proteins andintracellular pathways triggered, in normal and leukemic HSC. This study will provide abetter understanding of HSC regulation and its relation with hematologic cancers.

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

DE REZENDE, MARINA MASTELARO; NG-BLICHFELDT, JOHN-POUL; JUSTO, GISELLE ZENKER; PAREDES-GAMERO, EDGAR JULIAN; GOSENS, REINOUD. Divergent effects of Wnt5b on IL-3-and GM-CSF-induced myeloid differentiation. CELLULAR SIGNALLING, v. 67, MAR 2020. (15/16799-3, 15/24464-1, 16/23787-4)

DE REZENDE, MARINA MASTELARO; FERREIRA, ALICE T.; PAREDES-GAMERO, EDGAR J.. Leukemia stem cell immunophenotyping tool for diagnostic, prognosis, and therapeutics. Journal of Cellular Physiology, v. 235, n. 6, p. 10-pg., 2019-11-10. (15/24464-1, 16/23787-4)

DE REZENDE, MARINA MASTELARO; FERREIRA, ALICE T.; PAREDES-GAMERO, EDGAR J.. Leukemia stem cell immunophenotyping tool for diagnostic, prognosis, and therapeutics. Journal of Cellular Physiology, NOV 2019. (15/24464-1, 16/23787-4)