Results 91 to 100 of about 1,062,757 (298)

Life-Cycle Switching and Coexistence of Species with No Niche Differentiation

PLoS ONE, 2011
The increasing evidence of coexistence of cryptic species with no recognized niche differentiation has called attention to mechanisms reducing competition that are not based on niche-differentiation. Only sex-based mechanisms have been shown to create the negative feedback needed for stable coexistence of competitors with completely overlapping niches.
Montero Pau, Javier, Serra Galindo, Manuel   +1 more
openaire   +5 more sources

SEGMENTATION AND DIFFERENTIATION OF AGRI-FOOD NICHE MARKETS: EXAMPLES FROM THE LITERATURE [PDF]

Niche marketing has recently received a great deal of attention in the agri-food trade press and in academic circles as a legitimate strategy for small- and medium-sized agri-food firms.
Phillips, Jon C., Peterson, H. Christopher   +1 more
core  

Unraveling the epigenetic code in cancer cell–tumor microenvironment crosstalk

Molecular Oncology, EarlyView.
Epigenetic regulation is a key driver of cancer development and progression. Diverse epigenetic alterations in cancer cells and components of the tumor microenvironment (TME) orchestrate their communication through multiple mechanisms. We discuss how the epigenetic code coordinates bidirectional cancer cell–TME crosstalk to promote cancer progression ...
Ji Hoon Park, Mi‐Young Kim
wiley   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

Molecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu, Yubei He, Nikolaus Berndt, Michael Mülleder, Kathrin Textoris‐Taube, Jing Guo, Matthias Stechele, Justus Ramtke, Shraga Nahum Goldberg, Lynn Jeanette Savic   +9 more
wiley   +1 more source

Nidogen-1 Contributes to the Interaction Network Involved in Pro-B Cell Retention in the Peri-sinusoidal Hematopoietic Stem Cell Niche

Cell Reports, 2019
Summary: In the bone marrow, CXCL12 and IL-7 are essential for B cell differentiation, whereas hematopoietic stem cell (HSC) maintenance requires SCF and CXCL12.
Marielle Balzano, Maria De Grandis, Thien-Phong Vu Manh, Lionel Chasson, Florence Bardin, Anne Farina, Arnauld Sergé, Ghislain Bidaut, Pierre Charbord, Léonard Hérault, Anne-Laure Bailly, Amandine Cartier-Michaud, Annie Boned, Marc Dalod, Estelle Duprez, Paul Genever, Mark Coles, Marc Bajenoff, Luc Xerri, Michel Aurrand-Lions, Claudine Schiff, Stéphane J.C. Mancini   +21 more
doaj   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

FEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan, Amias Alstrom‐Moore, Gary W Black   +2 more
wiley   +1 more source

Dual role for Headcase in hemocyte progenitor fate determination in Drosophila melanogaster.

PLoS Genetics
The hematopoietic organ of the Drosophila larva, the lymph gland, is a simplified representation of mammalian hematopoietic compartments, with the presence of hemocyte progenitors in the medullary zone (MZ), differentiated hemocytes in the cortical zone (
Bayan Kharrat, Erika Gábor, Nikolett Virág, Rita Sinka, Ferenc Jankovics, Ildikó Kristó, Péter Vilmos, Gábor Csordás, Viktor Honti   +8 more
doaj   +1 more source

Niche-derived exosomes control Drosophila immune stress hematopoiesis

Frontiers in Immunology
Hematopoietic stem and progenitor cells in the bone marrow ensure continuous blood cell production. Homeostasis is controlled by a specialized microenvironment termed the niche.
Nathalie Vanzo, Marianne Montemurro, Christian Rouvière, Léonie Gargouil, Vanessa Soldan, Michèle Crozatier   +5 more
doaj   +1 more source