title: Multiple myeloma as a model for the role of bone marrow niches in the control of angiogenesis.
abstract: Bone marrow (BM) contains hematopoietic stem cells (HSCs) and nonhematopoietic cells. HSCs give rise to all types of mature blood cells, while the nonhematopoietic component includes osteoblasts/osteoclasts, endothelial cells (ECs), endothelial progenitor cells (EPCs), and mesenchymal stem cells (MSCs). These cells form specialized "niches" which are close to the vasculature ("vascular niche") or to the endosteum ("osteoblast niche"). The "vascular niche", rich in blood vessels where ECs and mural cells (pericytes and smooth muscle cells), create a microenvironment affecting the behavior of several stem and progenitor cells. The vessel wall acts as an independent niche for the recruitment of EPCs and MSCs. This chapter will focus on the description of the role of BM niches in the control of angiogenesis occurring during multiple myeloma progression.
authors.affiliation: Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy; National Cancer Institute "Giovanni Paolo II", Bari, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Ribatti
authors.affiliation: Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy.
authors.forename: Beatrice
authors.initials: B
authors.lastname: Nico
authors.affiliation: Department of Internal Medicine and Oncology, University of Bari Medical School, Bari, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Vacca
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000378:metabolism* / Q000473:pathology; D006801:Humans; D008954:Models, Biological; D009101:Multiple Myeloma / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D009389:Neovascularization, Pathologic / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D059016:Tumor Microenvironment
keywords: Angiogenesis; Multiple myeloma; Osteoblastic niche; Tumor growth; Vascular niche