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https://www.readbyqxmd.com/read/28621237/role-of-cxcr4-and-sdf1-as-prognostic-factors-for-survival-and-the-association-with-clinicopathology-in-colorectal-cancer-a-systematic-meta-analysis
#1
Yao-Ping Li, Jing Pang, Sheng Gao, Peng-Yu Bai, Wen-da Wang, Pengzhou Kong, Yongping Cui
C-X-C chemokine receptor type 4 and stromal cell-derived factor-1 were proven to play important roles in several types of cancer and in many biological processes connected with tumor growth, invasion, angiogenesis, and metastasis. However, the clinical significance of C-X-C chemokine receptor type 4 and stromal cell-derived factor-1 expression in colorectal cancer remains inaccurate. The purpose of this systematic meta-analysis is to investigate the role of C-X-C chemokine receptor type 4 and stromal cell-derived factor-1 as prognostic factors for survival and the association between C-X-C chemokine receptor type 4/ stromal cell-derived factor-1 and clinicopathology in colorectal cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28618253/hypoxia-inducible-factor-1%C3%AE-signaling-promotes-repair-of-the-alveolar-epithelium-after-acute-lung-injury
#2
Jazalle McClendon, Nicole L Jansing, Elizabeth F Redente, Aneta Gandjeva, Yoko Ito, Sean P Colgan, Aftab Ahmad, David W H Riches, Harold A Chapman, Robert J Mason, Rubin M Tuder, Rachel L Zemans
During acute respiratory distress syndrome, epithelial cells, primarily alveolar type (AT) I cells, die and slough off the basement membrane, resulting in enhanced permeability. ATII cells proliferate and spread onto the denuded basement membrane to reseal the barrier. Repair of the alveolar epithelium is critical for clinical recovery; however, the mechanisms underlying ATII cell proliferation and spreading are not well understood. We hypothesized that hypoxia-inducible factor (HIF)1α promotes proliferation and spreading of ATII cells during repair after lung injury...
June 12, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28571570/immunological-and-virological-characterization-of-hiv-1-viremia-controllers-in-the-north-region-of-brazil
#3
Samara Tatielle M Gomes, Érica R Gomes, Mike B Dos Santos, Sandra S Lima, Maria Alice F Queiroz, Luiz Fernando A Machado, Izaura M V Cayres-Vallinoto, Antonio Carlos R Vallinoto, Marluísa de O Guimarães Ishak, Ricardo Ishak
BACKGROUND: A rare phenotype of clinical non-progressors to AIDS is not well understood and the new protocol for universal treatment, may block the understanding of viral control thus it is crucial to define this controversial group. METHODS: A cohort of 30 persons followed a criteria for viremia control groups 1 (VC1; n = 2) and 2 (VC2; n = 7) and non-viral controllers (NC; n = 21) including number of years of diagnosis, LTCD4(+), LTCD8(+) counts, plasma viral load and the absence of ART; 241 uninfected control persons were matched to age and sex...
June 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28535157/a-meta-analysis-of-cxcl12-expression-for-cancer-prognosis
#4
Harsh Samarendra, Keaton Jones, Tatjana Petrinic, Michael A Silva, Srikanth Reddy, Zahir Soonawalla, Alex Gordon-Weeks
BACKGROUND: CXCL12 (SDF1) is reported to promote cancer progression in several preclinical models and this is corroborated by the analysis of human tissue specimens. However, the relationship between CXCL12 expression and cancer survival has not been systematically assessed. METHODS: We conducted a systematic review and meta-analysis of studies that evaluated the association between CXCL12 expression and cancer survival. RESULTS: Thirty-eight studies inclusive of 5807 patients were included in the analysis of overall, recurrence-free or cancer-specific survival, the majority of which were retrospective...
May 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28526501/hypoxia-modulates-cell-migration-and-proliferation-in-placenta-derived-mesenchymal-stem-cells
#5
Li Li, Prashant Kumar Jaiswal, Georges Makhoul, Rishi Jurakhan, Kaviyanka Selvasandran, Khalid Ridwan, Renzo Cecere
OBJECTIVES: For more than a decade, stem cells isolated from different tissues have been evaluated in cell therapy. Among them, the human bone marrow-derived mesenchymal stem cells (hBM-MSCs) were investigated extensively in the treatment of myocardial infarction. Recently, the human placenta-derived mesenchymal stem cells (hPD-MSCs), which are readily available from a biological waste, appear to be a viable alternative to hBM-MSCs. METHODS: C-X-C chemokine receptor type 4 (CXCR4) gene expression and localization were detected and validated in hPD-MSCs and hBM-MSCs via polymerase chain reaction and immunofluorescence...
April 13, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28523566/radial-glia-cells-control-angiogenesis-in-the-developing-cerebral-cortex-through-tgf-%C3%AE-1-signaling
#6
Michele Siqueira, Daniel Francis, Diego Gisbert, Flávia Carvalho Alcantara Gomes, Joice Stipursky
Neuroangiogenesis in the developing central nervous system is controlled by interactions between endothelial cells (ECs) and radial glia (RG) neural stem cells, although RG-derived molecules implicated in these events are not fully known. Here, we investigated the role of RG-secreted TGF-β1, in angiogenesis in the developing cerebral cortex. By isolation of murine microcapillary brain endothelial cells (MBECs), we demonstrate that conditioned medium from RG cultures (RG-CM) promoted MBEC migration and formation of vessel-like structures in vitro, in a TGF-β1-dependent manner...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28445650/cxcr4-targeted-and-redox-responsive-dextrin-nanogel-for-metastatic-breast-cancer-therapy
#7
Feiran Zhang, Siman Gong, Jun Wu, Huipeng Li, David Oupicky, Minjie Sun
The unsatisfied results of cancer therapy are caused by many issues and metastasis of cancer cells is one of the major challenge. It has been reported that inhibiting the SDF1/CXCR4 interaction can significantly reduce the metastasis of breast cancer cells to regional lymph nodes and lung. Herein, a nanogel system equipped with the FDA-approved CXCR4 antagonist AMD3100 was developed and evaluated for its combined antimetastatic and tumor targeting effects. Briefly, a bioreducible cross-linked dextrin nanogel (DNG) coated with AMD3100 was designed to possess multiple functions, including CXCR4 chemokine targeting, inhibition of tumor metastasis, and reduction-responsive intracellular release of doxorubicin (DOX) to reduce the cells proliferation...
May 10, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28379992/a-novel-recombinant-antibody-specific-to-full-length-stromal-derived-factor-1-for-potential-application-in-biomarker-studies
#8
Daniel I Bromage, Stasa Taferner, Mahesh Pillai, Derek M Yellon, Sean M Davidson
BACKGROUND: Stromal derived factor-1α (SDF-1α/CXCL12) is a chemokine that is up-regulated in diseases characterised by tissue hypoxia, including myocardial infarction, ischaemic cardiomyopathy and remote ischaemic conditioning (RIC), a technique of cyclical, non-injurious ischaemia applied remote from the heart that protects the heat from lethal ischaemia-reperfusion injury. Accordingly, there is considerable interest in SDF-1α as a potential biomarker of such conditions. However, SDF-1α is rapidly degraded and inactivated by dipeptidyl peptidase 4 and other peptidases, and the kinetics of intact SDF-1α remain unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28358371/cell-based-therapy-using-mir-302-367-expressing-cells-represses-glioblastoma-growth
#9
Mohamed Fareh, Fabien Almairac, Laurent Turchi, Fanny Burel-Vandenbos, Philippe Paquis, Denys Fontaine, Sandra Lacas-Gervais, Marie-Pierre Junier, Hervé Chneiweiss, Thierry Virolle
Glioblastomas are incurable primary brain tumors that affect patients of all ages. The aggressiveness of this cancer has been attributed in part to the persistence of treatment-resistant glioblastoma stem-like cells. We have previously discovered the tumor-suppressor properties of the microRNA cluster miR-302-367, representing a potential treatment for glioblastoma. Here, we attempted to develop a cell-based therapy by taking advantage of the capability of glioma cells to secrete exosomes that enclose small RNA molecules...
March 30, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28352190/sdf1-3-a-polymorphism-is-associated-with-increased-risk-of-hematological-malignancy-a-meta-analysis
#10
Xiaowen Zhang, Yang Fan, Zhijie Li
CXCL12 (also named SDF1), a member of the chemokine family, has been demonstrated to play an important role in the progression of multiple types of hematological malignancy. Several recent studies have shown that SDF1-3'A polymorphism (rs1801157) is associated with susceptibility to hematological malignancy, but published studies' results are disputed. Therefore, we performed a meta-analysis to evaluate the relationship between SDF1-3'A polymorphism and the risk of hematological malignancy based on the existing literature...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28335041/the-cerebellum-and-its-wrapping-meninge-developmental-interplay-between-two-major-structures
#11
Martin Catala
Meninges have long been considered as a protective and supportive tissue for the central nervous system. Nevertheless, new developmental roles are now attributed to them. The meninges that surround the cerebellum come from the cephalic mesoderm. They are essential for the cerebellum to develop normally. They induce and maintain the basal lamina and glia limitans. In the absence of these structures, the external granular cells of the cerebellum migrate aberrantly and penetrate the subarachnoid space. The molecules involved in the recognition between the cerebellar primordium and the basal lamina belong to two groups in humans: dystroglycan and laminin on the one hand, and GPR56 and collagen III on the other...
March 23, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28253363/mutation-in-cpsf6-cfim68-cleavage-and-polyadenylation-specificity-factor-subunit-6-causes-short-3-utrs-and-disturbs-gene-expression-in-developing-embryos-as-revealed-by-an-analysis-of-primordial-germ-cell-migration-using-the-medaka-mutant-naruto
#12
Takao Sasado, Hisato Kondoh, Makoto Furutani-Seiki, Kiyoshi Naruse
Our previous studies analyzing medaka mutants defective in primordial germ cell (PGC) migration identified cxcr4b and cxcr7, which are both receptors of the chemokine sdf1/cxcl12, as key regulators of PGC migration. Among PGC migration mutants, naruto (nar) is unique in that the mutant phenotype includes gross morphological abnormalities of embryos, suggesting that the mutation affects a broader range of processes. A fine genetic linkage mapping and genome sequencing showed the nar gene encodes Cleavage and Polyadenylation Specificity Factor subunit 6 (CPSF6/CFIm68)...
2017: PloS One
https://www.readbyqxmd.com/read/28236026/downregulation-of-mir-221-3p-contributes-to-il-1%C3%AE-induced-cartilage-degradation-by-directly-targeting-the-sdf1-cxcr4-signaling-pathway
#13
Xin Zheng, Feng-Chao Zhao, Yong Pang, Dong-Ya Li, Sheng-Cheng Yao, Shao-Song Sun, Kai-Jin Guo
Osteoarthritis (OA) is characterized by degradation of chondrocyte extracellular matrix (ECM). Accumulating evidence suggests that microRNAs (miRNAs) are associated with OA, but little is known of their function in chondrocyte ECM degradation. The objective of this study was to investigate the expression and function of miRNAs in OA. miRNA expression profile was determined in OA cartilage tissues and controls, employing Solexa sequencing and reverse transcription quantitative PCR (RT-qPCR). According to a modified Mankin scale, cartilage degradation was evaluated...
February 24, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28196519/erratum-to-sdf1-in-the-dorsal-corticospinal-tract-promotes-cxcr4-cell-migration-after-spinal-cord-injury
#14
Vicki M Tysseling, Divakar S Mithal, Vibhu Sahni, Derin Birch, Hosung Jung, Richard J Miller, John A Kessler
No abstract text is available yet for this article.
February 14, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28116224/stromal-cell-derived-growth-factor-1-alpha-elastin-like-peptide-fusion-protein-promotes-cell-migration-and-revascularization-of-experimental-wounds-in-diabetic-mice
#15
Agnes Yeboah, Tim Maguire, Rene Schloss, Francois Berthiaume, Martin L Yarmush
Objective: In previous work, we demonstrated the development of a novel fusion protein containing stromal cell-derived growth factor-1 alpha juxtaposed to an elastin-like peptide (SDF1-ELP), which has similar bioactivity, but is more stable in elastase than SDF1. Herein, we compare the ability of a single topical application of SDF1-ELP to that of SDF1 in healing 1 × 1 cm excisional wounds in diabetic mice. Approach: Human Leukemia-60 cells were used to demonstrate the chemotactic potential of SDF1-ELP versus SDF1 in vitro...
January 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28010141/differential-expression-of-visfatin-leptin-stromal-cell-derived-factor-1%C3%AE-endothelial-nitric-oxide-synthase-and-vascular-endothelial-growth-factor-in-human-leiomyomas
#16
Bo Sun Joo, Min Jung Park, Chang-Woon Kim, Kyu Sup Lee, Jong Kil Joo
AIM: This study was aimed to understand expressions of the visfatin, leptin, stromal cell derived factor (SDF)-1α, endothelial nitric oxide synthase (eNOS), and vascular endothelial growth factor (VEGF) in human uterine leiomyomas (UL) and normal myometrium. METHOD: This study investigated expression of visfatin, leptin, SDF-1α, eNOS and VEGF in 23 uterine leiomyoma patients and 10 normal myometrium by RT-PCR and western blot. Messenger RNA transcripts of SDF-1α, eNOS, VEGF and hypoxia inducible factor-1α (HIF-1α) were analyzed according to the size of UL by real-time PCR...
December 23, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27916459/molecular-characterization-of-sdf1-and-cxcr4-in-the-mozambique-tilapia-oreochromis-mossambicus
#17
Jorge Amat-Fernandez, Michael J Hammond, Di Liang, Tianfang Wang, Tomer Ventura, Abigail Elizur, Scott F Cummins
Animal sexual reproduction relies on primordial germ cells (PGCs), the predecessors of the germ cell lineage, giving rise to either spermatogonia or oogonia after the completion of gonadal differentiation. There is limited information on the mechanism of PGC migration leading to the formation of the primordial gonad in Perciform fish. Oreochromis mossambicus, a tilapiine species, was investigated that is a commercially important aquaculture species in many parts of the world while in other areas it has become an invasive pest...
January 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/27907131/itraq-based-quantitative-proteomic-comparison-of-early-and-late-passage-human-dermal-papilla-cell-secretome-in-relation-to-inducing-hair-follicle-regeneration
#18
Huan Zhang, Ning-Xia Zhu, Keng Huang, Bo-Zhi Cai, Yang Zeng, Yan-Ming Xu, Yang Liu, Yan-Ping Yuan, Chang-Min Lin
Alopecia is an exceedingly prevalent problem that lacks effective therapy. Recently, research has focused on early-passage dermal papilla cells (DPCs), which have hair inducing activity both in vivo and in vitro. Our previous study indicated that factors secreted from early-passage DPCs contribute to hair follicle (HF) regeneration. To identify which factors are responsible for HF regeneration and why late-passage DPCs lose this potential, we collected 48-h-culture medium (CM) from both of passage 3 and 9 DPCs, and subcutaneously injected the DPC-CM into NU/NU mice...
2016: PloS One
https://www.readbyqxmd.com/read/27853331/effects-of-platelet-rich-plasma-platelet-rich-fibrin-with-and-without-stromal-cell-derived-factor-1-on-repairing-full-thickness-cartilage-defects-in-knees-of-rabbits
#19
Soghra Bahmanpour, Maryam Ghasemi, Mohsen Sadeghi-Naini, Iraj Ragerdi Kashani
BACKGROUND: The purpose of this study was to create biomaterial scaffolds like platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) containing stromal cell-derived factor-1 (SDF1) as a chemokine to induce hyaline cartilage regeneration of rabbit knee in a full thickness defect. METHODS: We created a full thickness defect in the trochlear groove of thirty-six bilateral knees of eighteen mature male rabbits. The knees were randomly divided into six groups (group I: untreated control, group II: PRP, group III: PRF, group IV: Gelatin+SDF1, group V: PRP+SDF1, and group VI: PRF+SDF1)...
November 2016: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/27832196/stromal-cell-derived-factor-1-polymorphism-in-retinal-vein-occlusion
#20
Andrea Szigeti, Mónika Ecsedy, Miklós Schneider, Lilla Lénárt, Balázs Lesch, Zoltán Zsolt Nagy, Andrea Fekete, Zsuzsanna Récsán
BACKGROUND: Stromal cell-derived factor 1 (SDF1) has crucial role in the regulation of angiogenesis and ocular neovascularisation (NV). The purpose of this study was to evaluate the association between SDF1-3'G(801)A polymorphism and NV complications of retinal vein occlusion (RVO). METHODS: 130 patients with RVO (median age: 69.0, range 35-93 years; male/female- 58/72; 55 patients had central RVO, 75 patients had branch RVO) were enrolled in this study. In the RVO group, 40 (30...
2016: PloS One
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