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https://www.readbyqxmd.com/read/24691464/dietary-supplementation-with-lactobacilli-improves-emergency-granulopoiesis-in-protein-malnourished-mice-and-enhances-respiratory-innate-immune-response
#1
Matias Herrera, Susana Salva, Julio Villena, Natalia Barbieri, Gabriela Marranzino, Susana Alvarez
This work studied the effect of protein malnutrition on the hemato-immune response to the respiratory challenge with Streptococcus pneumoniae and evaluated whether the dietary recovery with a probiotic strain has a beneficial effect in that response. Three important conclusions can be inferred from the results presented in this work: a) protein-malnutrition significantly impairs the emergency myelopoiesis induced by the generation of the innate immune response against pneumococcal infection; b) repletion of malnourished mice with treatments including nasally or orally administered Lactobacillus rhamnosus CRL1505 are able to significantly accelerate the recovery of granulopoiesis and improve innate immunity and; c) the immunological mechanisms involved in the protective effect of immunobiotics vary according to the route of administration...
2014: PloS One
https://www.readbyqxmd.com/read/24259140/cxcr7-influences-the-migration-of-b-cells-during-maturation
#2
Marie-Luise Humpert, Dora Pinto, David Jarrossay, Marcus Thelen
The atypical chemokine receptor CXCR7 binds the chemokines CXCL12 and CXCL11. The receptor is widely expressed and was shown to tune CXCR12-induced responses of CXCR4. Here, the function of CXCR7 was examined at late stages of human B-cell maturation, when B cells differentiate into Ab-secreting plasmablasts. We identified two populations of CXCR7(+) cells in tonsillar lymphocytes, one being presumably memory B cells or early plasmablasts (FSC(low) CD19(+) CD38(mid) ) and the other being plasmablasts or early plasma cells (FSC(high) CD19(+) CD38(+) )...
March 2014: European Journal of Immunology
https://www.readbyqxmd.com/read/22359577/cxcr4-expression-in-prostate-cancer-progenitor-cells
#3
Anna Dubrovska, Jimmy Elliott, Richard J Salamone, Gennady D Telegeev, Alexander E Stakhovsky, Ihor B Schepotin, Feng Yan, Yan Wang, Laure C Bouchez, Sumith A Kularatne, James Watson, Christopher Trussell, Venkateshwar A Reddy, Charles Y Cho, Peter G Schultz
Tumor progenitor cells represent a population of drug-resistant cells that can survive conventional chemotherapy and lead to tumor relapse. However, little is known of the role of tumor progenitors in prostate cancer metastasis. The studies reported herein show that the CXCR4/CXCL12 axis, a key regulator of tumor dissemination, plays a role in the maintenance of prostate cancer stem-like cells. The CXCL4/CXCR12 pathway is activated in the CD44(+)/CD133(+) prostate progenitor population and affects differentiation potential, cell adhesion, clonal growth and tumorigenicity...
2012: PloS One
https://www.readbyqxmd.com/read/19550128/expression-of-cxcl12-cxcr4-and-its-correlation-to-prognosis-in-esophageal-squamous-cell-carcinoma
#4
Dao-Feng Wang, Ning Lou, Can-Guang Zeng, Xu Zhang, Fu-Jin Chen
BACKGROUND AND OBJECTIVE: CXCL12/CXCR4 is expressed in many kinds of tumors, which is associated with tumor proliferation and invasion. This study was to investigate the expression of CXCL12/CXCR4, and explore its correlation to prognosis and clinicopathologic factors of esophageal squamous cell carcinoma (ESCC). METHODS: The expression of CXCL12/CXCR4 protein in 186 specimens of ESCC was assessed by immunohistochemistry. RESULTS: The positive rates of CXCL4 and CXCR12 protein in ESCC tissues were 67...
February 2009: Ai Zheng, Aizheng, Chinese Journal of Cancer
https://www.readbyqxmd.com/read/16738203/the-extrapulmonary-origin-of-fibroblasts-stem-progenitor-cells-and-beyond
#5
REVIEW
Vibha N Lama, Sem H Phan
Although intrapulmonary progenitor cells are traditionally believed to be the source for regenerating cells in response to lung injury, recent mounting evidence indicates that a significant proportion of the mesenchymal cells involved in this repair/remodeling process may be derived from extrapulmonary sources, such as the recently described circulating fibrocyte as well as other bone marrow-derived progenitor cells. Studies tracking CD34 and/or CD45 markers of fibrocytes show their presence in injured murine lung tissue...
June 2006: Proceedings of the American Thoracic Society
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