TY - JOUR
T1 - Nidogen-1 Contributes to the Interaction Network Involved in Pro-B Cell Retention in the Peri-sinusoidal Hematopoietic Stem Cell Niche
AU - Balzano, Marielle
AU - De Grandis, Maria
AU - Vu Manh, Thien-Phong
AU - Chasson, Lionel
AU - Bardin, Florence
AU - Farina, Anne
AU - Serge, Arnauld
AU - Bidaut, Ghislain
AU - Charbord, Pierre
AU - Herault, Leonard
AU - Bailly, Anne-Laure
AU - Cartier-Michaud, Amandine
AU - Boned, Annie
AU - Dalod, Marc
AU - Duprez, Estelle
AU - Genever, Paul Gilbert
AU - Coles, Mark Christopher
AU - Bajenoff, Marc
AU - Xerri, Luc
AU - Aurrand-Lions, Michel
AU - Schiff, Claudine
AU - Mancini, Stephane J.C.
N1 - © 2019 The Author(s).
PY - 2019/3/19
Y1 - 2019/3/19
N2 - In the bone marrow, CXCL12 and IL-7 are essential for B cell differentiation, whereas hematopoietic stem cell (HSC) maintenance requires SCF and CXCL12. Peri-sinusoidal stromal (PSS) cells are the main source of IL-7, but their characterization as a pro-B cell niche remains limited. Here, we characterize pro-B cell supporting stromal cells and decipher the interaction network allowing pro-B cell retention. Preferential contacts are found between pro-B cells and PSS cells, which homogeneously express HSC and B cell niche genes. Furthermore, pro-B cells are frequently located in the vicinity of HSCs in the same niche. Using an interactome bioinformatics pipeline, we identify Nidogen-1 as essential for pro-B cell retention in the peri-sinusoidal niche as confirmed in Nidogen-1−/− mice. Finally, human pro-B cells and hematopoietic progenitors are observed close to similar IL-7+ stromal cells. Thus, a multispecific niche exists in mouse and human supporting both early progenitors and committed hematopoietic lineages.
AB - In the bone marrow, CXCL12 and IL-7 are essential for B cell differentiation, whereas hematopoietic stem cell (HSC) maintenance requires SCF and CXCL12. Peri-sinusoidal stromal (PSS) cells are the main source of IL-7, but their characterization as a pro-B cell niche remains limited. Here, we characterize pro-B cell supporting stromal cells and decipher the interaction network allowing pro-B cell retention. Preferential contacts are found between pro-B cells and PSS cells, which homogeneously express HSC and B cell niche genes. Furthermore, pro-B cells are frequently located in the vicinity of HSCs in the same niche. Using an interactome bioinformatics pipeline, we identify Nidogen-1 as essential for pro-B cell retention in the peri-sinusoidal niche as confirmed in Nidogen-1−/− mice. Finally, human pro-B cells and hematopoietic progenitors are observed close to similar IL-7+ stromal cells. Thus, a multispecific niche exists in mouse and human supporting both early progenitors and committed hematopoietic lineages.
U2 - 10.1016/j.celrep.2019.02.065
DO - 10.1016/j.celrep.2019.02.065
M3 - Article
SN - 2211-1247
VL - 26
SP - 3257
EP - 3271
JO - Cell reports
JF - Cell reports
ER -