Results 61 to 70 of about 277,155 (334)

Depleting the signal: Analysis of chemotaxis-consumption models -- A survey [PDF]

arXiv, 2023
We give an overview of analytical results concerned with chemotaxis systems where the signal is absorbed. We recall results on existence and properties of solutions for the prototypical chemotaxis-consumption model and various variants and review more recent findings on its ability to support the emergence of spatial structures.
arxiv  

Enhancer of zeste homolog 2 enhances the migration and chemotaxis of dental mesenchymal stem cells

Journal of International Medical Research, 2020
Objective To investigate the function of enhancer of zeste homolog 2 (EZH2) in the migration and chemotaxis of human dental tissue-derived mesenchymal stem cells. Methods The expression of EZH2, C-X-C motif chemokine ligand 11 (CXCL11), CXCL16, and CXCR1
Huarui Ma, Shaoyu Duan, Fei Yan, Haoqing Yang, Yangyang Cao, Lihua Ge, Runtao Gao   +6 more
doaj   +1 more source

Global existence of solutions in two-species chemotaxis system with two chemicals with sub-logistic sources in 2d [PDF]

arXiv, 2023
This paper investigates the global existence and boundedness of solutions in a two-species chemotaxis system with two chemicals and sub-logistic sources. The presence of a sub-logistic source in only one cell density equation effectively prevents the occurrence of blow-up solutions, even in fully parabolic chemotaxis systems.
arxiv  

Identification of Chemotaxis Compounds in Root Exudates and Their Sensing Chemoreceptors in Plant-Growth-Promoting Rhizobacteria Bacillus amyloliquefaciens SQR9.

Molecular Plant-Microbe Interactions, 2018
Chemotaxis-mediated response to root exudates, initiated by sensing-specific ligands through methyl-accepting chemotaxis proteins (MCP), is very important for root colonization and beneficial functions of plant-growth-promoting rhizobacteria (PGPR ...
Haichao Feng, N. Zhang, Wenbin Du, Huihui Zhang, Yunpeng Liu, Ruixin Fu, Jiahui Shao, Guishan Zhang, Q. Shen, Ruifu Zhang   +9 more
semanticscholar   +1 more source

COP5/HKR1 changes ciliary beat pattern and biases cell steering during chemotaxis in Chlamydomonas reinhardtii. [PDF]

Sci Rep
This study investigates the control of ciliary beat patterns during ammonium chemotaxis in the model ciliate microalga Chlamydomonas reinhardtii. Screening the chemotaxis response of mutant strains with ciliary defects revealed that a strain lacking CAV2,
Strain A, Kratzberg N, Vu D, Miller E, Wakabayashi KI, Melvin A, Kato N.   +6 more
europepmc   +2 more sources

Chemotactic properties of Escherichia coli mutants having abnormal Ca2+ content [PDF]

, 1995
The calA, calC, and calD mutants of Escherichia coli are known to be sensitive to Ca2+ (R. N. Brey and B. P. Rosen, J. Bacteriol. 139:824-834, 1979).
Adler, Julius, Tisa, Louis S.
core   +3 more sources

Singly Flagellated Pseudomonas aeruginosa Chemotaxes Efficiently by Unbiased Motor Regulation

mBio, 2016
Pseudomonas aeruginosa is an opportunistic human pathogen that has long been known to chemotax. More recently, it has been established that chemotaxis is an important factor in the ability of P. aeruginosa to make biofilms. Genes that allow P. aeruginosa
Qiuxian Cai, Zhaojun Li, Qi Ouyang, Chunxiong Luo, Vernita D. Gordon   +4 more
doaj   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

Molecular Oncology, EarlyView.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park, Jae Won Oh, Hyewon Chung, Jung Won Kwon, Yi Rang Na, Kwang Pyo Kim, Seung Hyeok Seok   +6 more
wiley   +1 more source

Control of human endometrial stromal cell motility by PDGF-BB, HB-EGF and trophoblast-secreted factors [PDF]

, 2013
Human implantation involves extensive tissue remodeling at the fetal-maternal interface. It is becoming increasingly evident that not only trophoblast, but also decidualizing endometrial stromal cells are inherently motile and invasive, and likely ...
A Brar, A Samalecos, A Stavreus-Evers, AA Brahmbhatt, Ana-Maria Bamberger, Anja Wolf, Annemarie Samalecos, AT Fazleabas, B Cloke, B Gellersen, B Gellersen, BA Lessey, Birgit Gellersen, C Ferretti, C Fischer, C Gaggioli, Charlotte H. E. Weimar, CHE Weimar, CM Boomsma, CP Thomas, D Gentilini, D Gentilini, D Haouzi, DE Clark, EE Sander, ER Norwitz, F Chang, F Llorens, F Lyall, G Gaus, G Teklenburg, G Teklenburg, GE Lash, GE Lash, GJ Burton, H Funayama, H Matsumoto, H Xie, HJ Lim, HJ Yoo, I Ihnatovych, IY Yotova, J Anacker, J Baulida, J Fiedler, JJ Brosens, JJ Brosens, JW Tullai, JX Zhu, K Chobotova, K Kawada, K Red-Horse, K Roepstorff, LA Salamonsen, M Bilban, M Bilban, M Cohen, M Gonzalez, M Knöfler, M Knöfler, M Salker, Maren Schwenke, Martin Knöfler, Meijing Wang, Michelle Kruse, MW Maijenburg, Nick S. Macklon, NJ Hannan, NJ Hannan, P Burke, P Jessmon, P Jessmon, P Kaufmann, Philipp Velicky, R Apps, RE Leach, RE Leach, RE Leach, RJ Petrie, RL Kendall, RN Popovici, S Grewal, S Grewal, SK Mitra, Y Jiang, Y Yamazaki   +85 more
core   +3 more sources

Counterclockwise rotation of the flagellum promotes biofilm initiation in Helicobacter pylori

mBio
Motility promotes biofilm initiation during the early steps of this process: microbial surface association and attachment. Motility is controlled in part by chemotaxis signaling, so it seems reasonable that chemotaxis may also affect biofilm formation ...
Xiaolin Liu, Paphavee Lertsethtakarn, Vanessa T. Mariscal, Fitnat Yildiz, Karen M. Ottemann   +4 more
doaj   +1 more source