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https://www.readbyqxmd.com/read/29667777/induced-pluripotent-stem-cell-derived-conditional-medium-promotes-leydig-cell-anti-apoptosis-and-proliferation-via-autophagy-and-wnt-%C3%AE-catenin-pathway
#1
Xiaoling Guo, Yong Chen, Tingting Hong, Xianwu Chen, Yue Duan, Chao Li, Renshan Ge
Leydig cell transplantation is a better alternative in the treatment of androgen-deficient males. The main purpose of this study was to investigate the effects of induced pluripotent stem cell-derived conditioned medium (iPS-CM) on the anti-apoptosis, proliferation and function of immature Leydig cells (ILCs), and illuminate the underlying mechanisms. ILCs were exposed to 200 μmol/L hydrogen peroxide (H2 O2 ) for 24 hours with or without iPS-CM treatments. Cell apoptosis was detected by flow cytometric analysis...
April 18, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29665425/omega-3-polyunsaturated-fatty-acids-promotes-angiogenesis-in-placenta-derived-mesenchymal-stromal-cells
#2
Suja Ann Mathew, Ramesh Bhonde
Enhancement of angiogenesis is solicited in wound repair and regeneration. Mesenchymal stromal cells derived from the placenta (P-MSCs) have an inherent angiogenic potential. Polyunsaturated fatty acids (PUFAs) in turn, specifically the omega-3 (N-3) are essential for growth and development. They are also recommended as dietary supplements during pregnancy. We therefore hypothesized that addition of N-3 PUFAs in P-MSC culture media may enhance their angiogenic potential. Hence we treated P-MSCs with omega-3 (N-3) fatty acids -Docosahexaenoic acid (DHA) and Eicosapentaenoic acid (EPA) at different concentrations and tested their angiogenic potential...
April 14, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29649059/enhancement-of-progenitor-cells-by-two-step-centrifugation-of-emulsified-lipoaspirates
#3
Norbert Pallua, Justinas Grasys, Bong-Sung Kim
BACKGROUND: Adipose-derived stem cells (ASCs), endothelial progenitor cells (EPCs) and soluble factors jointly contribute to the regenerative effect of fat grafts. The nanofat grafting technique is a simple method to mechanically emulsify the lipoaspirate and increase the ASC yield in the lipoaspirate. In the present study, we evaluated our extended nanofat grafting method that includes two additional centrifugation steps and results in a lipoaspirate of low volume that we termed "lipoconcentrate"...
March 29, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29644924/role-of-prion-protein-egfr-multimolecular-complex-during-neuronal-differentiation-of-human-dental-pulp-derived-stem-cells
#4
Stefano Martellucci, Valeria Manganelli, Costantino Santacroce, Francesca Santilli, Luca Piccoli, Maurizio Sorice, Vincenzo Mattei
Cellular prion protein (PrPC ) is expressed in a wide variety of stem cells in which regulates their self-renewal as well as differentiation potential. In this study we investigated the presence of PrPC in human dental pulp-derived stem cells (hDPSCs) and its role in neuronal differentiation process. We show that hDPSCs expresses early PrPC at low concentration and its expression increases after two weeks of treatment with EGF/bFGF. Then, we analyzed the association of PrPC with gangliosides and EGF receptor (EGF-R) during neuronal differentiation process...
April 12, 2018: Prion
https://www.readbyqxmd.com/read/29623460/cryopreservation-of-amniotic-membrane-with-and-without-glycerol-additive
#5
Malina Wagner, Peter Walter, Sabine Salla, Sandra Johnen, Niklas Plange, Stephan Rütten, Tamme W Goecke, Matthias Fuest
PURPOSE: Amniotic membrane (AM) is an essential tool in ocular surface reconstruction. In this study, we analyzed the differential effects of glycerol and straight storage at - 80 °C for up to 6 months on the structural, biological, and mechanical properties of amniotic membrane (AM). METHODS: Human placentae of 11 different subjects were analyzed. AMs were stored at - 80 °C, either with a 1:1 mixture of Dulbecco's modified Eagle medium and glycerol (glycerol) or without any medium or additives (straight)...
April 5, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29616116/lenalidomide-improvement-of-cisplatin-antitumor-efficacy-on-triple-negative-breast-cancer-cells-in-vitro
#6
Lin-Lin Yin, Xin-Mian Wen, Qing-Hua Lai, Jing Li, Xiu-Wen Wang
Lenalidomide is an immunomodulatory drug and possesses anti-angiogenic and immunomodulatory activities against multiple myeloma. The present study assessed the in vitro effect of lenalidomide combined with cisplatin on MDA-MB-231, a triple-negative breast cancer (TNBC) cell line and explored the underlying molecular mechanism of this combination. Cell viability, apoptosis and the protein expression of phosphorylated (p) and total extracellular signal-regulated kinase (ERK), B-cell lymphoma-2 (Bcl-2), caspase-3, cleaved poly-adenosine diphosphate-ribose polymerase (cPARP), vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) were measured in MDA-MB-231 cells treated with different concentrations of lenalidomide, cisplatin and their combination using different biochemical assays...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29614310/cxcl12-gene-engineered-endothelial-progenitor-cells-further-improve-the-functions-of-oligodendrocyte-precursor-cells
#7
Fang Yuan, Shuang Chang, Longlong Luo, Yaning Li, Liping Wang, Yaying Song, Meijie Qu, Zhijun Zhang, Guo-Yuan Yang, Yongting Wang
Oligodendrocyte precursor cells (OPCs) are needed for white matter repair after various brain injury. Means that promote OPC functions could benefit white matter recovery after injury. Chemokine CXCL12 and endothelial progenitor cells (EPCs) both have been shown to promote remyelination. We hypothesize that the beneficial effects of EPCs and CXCL12 can be harnessed by genetically modifying EPCs with cxcl12 to synergistically improve the functions of OPCs. In this work, CXCL12-EPC was generated using virus-mediated gene transfer...
March 31, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29611116/the-methods-and-mechanisms-to-differentiate-endothelial-like-cells-and-smooth-muscle-cells-from-mesenchymal-stem-cells-for-vascularization-in-vaginal-reconstruction
#8
Hua Zhang, Jingkun Zhang, Xianghua Huang, Yanan Li
Endothelial cells and smooth muscle cells (SMCs) are important aspects of vascularization in vaginal reconstruction. Research has confirmed that mesenchymal stem cells could differentiate into endothelial-like cells and SMCs. But the methods were more complicated and the mechanism was unknown. In the current study, we induced the bone mesenchymal stem cells (BMSCs) to differentiate into endothelial-like cells and SMCs in vitro by differentiation medium and investigated the effect of Wnt/β-catenin signaling on the differentiation process of BMSCs...
April 2, 2018: Molecular Biotechnology
https://www.readbyqxmd.com/read/29610563/aerosol-gemcitabine-after-amputation-inhibits-osteosarcoma-lung-metastases-but-not-wound-healing
#9
Eugenie S Kleinerman, Ling Yu, Jasmine Dao, Andrea A Hayes-Jordan, Brock Lindsey, Jitesh D Kawedia, John Stewart, Nancy Gordon
Background: In newly diagnosed osteosarcoma (OS) patients, the time between surgery and resumption of chemotherapy is 2-7 weeks. Delays > 16 days are associated with increased risk of relapse and decreased overall survival. Identifying an effective therapy that can be used postoperatively may prevent relapse. We investigated whether aerosol gemcitabine (GCB) initiated after tumor resection inhibited the growth of OS lung metastases without affecting the wound-healing process. Methods: Mice were injected intratibially with OS cells...
2018: Sarcoma
https://www.readbyqxmd.com/read/29609091/heparin-poloxamer-thermosensitive-hydrogel-loaded-with-bfgf-and-ngf-enhances-peripheral-nerve-regeneration-in-diabetic-rats
#10
Rui Li, Yiyang Li, Yanqing Wu, Yingzheng Zhao, Huanwen Chen, Yuan Yuan, Ke Xu, Hongyu Zhang, Yingfeng Lu, Jian Wang, Xiaokun Li, Xiaofeng Jia, Jian Xiao
Peripheral nerve injury (PNI) is a major burden to society with limited therapeutic options, and novel biomaterials have great potential for shifting the current paradigm of treatment. With a rising prevalence of chronic illnesses such as diabetes mellitus (DM), treatment of PNI is further complicated, and only few studies have proposed therapies suitable for peripheral nerve regeneration in DM. To provide a supportive environment to restore structure and/or function of nerves in DM, we developed a novel thermo-sensitive heparin-poloxamer (HP) hydrogel co-delivered with basic fibroblast growth factor (bFGF) and nerve growth factor (NGF) in diabetic rats with sciatic nerve crush injury...
March 26, 2018: Biomaterials
https://www.readbyqxmd.com/read/29608916/overexpression-of-mir-133-decrease-primary-endothelial-cells-proliferation-and-migration-via-fgfr1-targeting
#11
Mina Soufi Zomorrod, Fatemeh Kouhkan, Masoud Soleimani, Amir Aliyan, Nooshin Tasharrofi
Angiogenesis is one of the essential hallmarks of cancer that is controlled by the balance between positive and negative regulators. FGFR1 signaling is crucial for the execution of bFGF-induced proliferation, migration, and tube formation of endothelial cells (ECs) and onset of angiogenesis on tumors. The purpose of this study is to identify whether or not miR-133 regulates FGFR1 expression and accordingly hypothesize if it plays a crucial role in modulating bFGF/FGFR1 activity in ECs and blocking tumor angiogenesis through targeting FGFR1...
March 30, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29607508/activation-of-autophagy-in-periodontal-ligament-mesenchymal-stem-cells-promotes-angiogenesis-in-periodontitis
#12
Wei Wei, Yulin An, Ying An, Dongdong Fei, Qintao Wang
BACKGROUND: Angiogenesis alteration in tooth support tissue plays an essential role in periodontitis. Mesenchymal stem cells (MSCs) can affect vessel formation by endothelial cells (ECs) through paracrine function. Autophagy is reported to be closely related to cell secretion. Here we investigated the angiogenesis-promoting ability of MSCs that reside in the periodontal ligament (known as periodontal ligament stem cells, PDLSCs) under inflammatory conditions in order to explore the mechanism of angiogenesis alteration in periodontitis...
April 1, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29604553/stereological-and-molecular-studies-on-the-combined-effects-of-photobiomodulation-and-human-bone-marrow-mesenchymal-stem-cell-conditioned-medium-on-wound-healing-in-diabetic-rats
#13
Abdollah Amini, Ramin Pouriran, Mohammad-Amin Abdollahifar, Hojjat Allah Abbaszadeh, Seyed Kamran Ghoreishi, Sufan Chien, Mohammad Bayat
We investigated the effects of conditioned medium (CM) from human bone marrow mesenchymal stem cells (h BMMSC)s and pulse wave photobiomodulation (PW PBM), applied alone or in combination, on the stereological parameters and gene expression of some growth factors, during wound healing in a streptozotocin (STZ)-induced rat model of type one diabetes mellitus (T1DM). T1DM was induced in 72 rats and two incisions were made in each animal. The rats were assigned to one of four groups: a control (placebo) group, a Laser group (890 nm, 80 Hz, 0...
March 26, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29603682/adipose-derived-stem-cells-improve-erectile-function-partially-through-the-secretion-of-igf-1-bfgf-and-vegf-in-aged-rats
#14
J Yang, Y Zhang, G Zang, T Wang, Z Yu, S Wang, Z Tang, J Liu
Adipose-derived stem cells (ADSCs) have recently been considered as a promising therapy for erectile dysfunction (ED). However, the mechanism of ADSC-based therapy is unclear. Insulin-like growth factor-1 (IGF-1), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) secreted by ADSCs were assessed in vitro. Sixteen 24-month-old male Sprague-Dawley rats were used for comparative analysis of 2-week treatment with labeled ADSCs or PBS. Eight additional 5-month-old rats were used as a young rat group...
March 30, 2018: Andrology
https://www.readbyqxmd.com/read/29595848/multivalent-conjugates-of-basic-fibroblast-growth-factor-enhance-in-vitro-proliferation-and-migration-of-endothelial-cells
#15
Aline Zbinden, Shane Browne, Eda I Altiok, Felicia L Svedlund, Wesley M Jackson, Kevin E Healy
Growth factors hold great promise for regenerative therapies. However, their clinical use has been halted by poor efficacy and rapid clearance from tissue, necessitating the delivery of extremely high doses to achieve clinical effectiveness which has raised safety concerns. Thus, strategies to either enhance growth factor activity at low doses or to increase their residence time within target tissues are necessary for clinical success. In this study, we generated multivalent conjugates (MVCs) of basic fibroblast growth factor (bFGF), a key growth factor involved in angiogenesis and wound healing, to hyaluronic acid (HyA) polymer chains...
March 29, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29574015/effects-of-platelet-rich-plasma-on-tissue-engineered-vascularized-flaps-in-an-in-vivo-chamber
#16
Yoshio Tanaka, Yusuke Hamamoto, Aizezi Niyazi, Tomohisa Nagasao, Masaki Ueno, Yasuhiko Tabata
AIMS: We investigated the reproducibility of creating a vascularized tissue flap in an in vivo tissue engineering chamber by incubating a vascular pedicle imbedded in a collagen sponge with activated platelet-rich plasma (aPRP) and basic fibroblast growth factor (bFGF). METHODS: Collagen sponge soaked with saline (control group), bFGF (Group 1), aPRP (Group 2), and aPRP/controlled release bFGF (Group 3) was implanted with a saphenous arteriovenous pedicle into a tissue engineering chamber, located subcutaneously in the groin of rabbits...
March 7, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29545029/the-effects-of-three-modified-hank-s-balanced-salt-solutions-on-root-resorption-of-late-replanted-teeth-a-pilot-study
#17
Hanyu Qian, Yunpeng Ding, Yangou Wu, Shengjiao Li
PURPOSE: The purpose of this study was to evaluate the effects of replanted rats' teeth that had been soaked in one of three modified Hank's balanced salt solutions (HBSSs) before replantation and after extended extra-oral dry time. MATERIALS AND METHODS: Maxillary right incisors were extracted from 55 Wistar rats and kept dry for 30 or 60 min (n = 5 each). Afterwards, the pulp was extirpated and both the papilla and enamel organ were removed with a scalpel. Each group of teeth was soaked in one of three modified HBSSs or HBSS alone...
February 21, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29542005/realgar-transforming-solution-suppresses-angiogenesis-and-tumor-growth-by-inhibiting-vegf-receptor-2-signaling-in-vein-endothelial-cells
#18
Peng Song, Yang Hai, Xin Wang, Longhe Zhao, Baoqiang Chen, Peng Cui, Qinjian Xie, Lan Yu, Yang Li, Zhengrong Wu, Hongyu Li
Realgar (As4 S4 ), as an arsenic sulfide mineral drug, has a good therapeutic reputation for anticancer in Traditional Chinese Medicine, and has recently been reported to inhibit angiogenesis in tumor growth. However, considering the poor solubility and low bioavailability of realgar, large dose of realgar and long period of treatment are necessary for achieving the effective blood medicine concentration. In present study, we resolved the crucial problem of poor solubility of realgar by using intrinsic biotransformation in microorganism, and investigated underlying mechanisms of realgar transforming solution (RTS) for antiangiogenesis...
March 15, 2018: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29540697/kaempferol-targeting-on-the-fibroblast-growth-factor-receptor-3-ribosomal-s6-kinase-2-signaling-axis-prevents-the-development-of-rheumatoid-arthritis
#19
Cheol-Jung Lee, Su-Jin Moon, Jeong-Hee Jeong, Sangbae Lee, Mee-Hyun Lee, Sun-Mi Yoo, Hye Suk Lee, Han Chang Kang, Joo Young Lee, Weon Sun Lee, Hee-Jin Lee, Eun-Kyung Kim, Joo-Yeon Jhun, Mi-La Cho, Jun-Ki Min, Yong-Yeon Cho
Rheumatoid arthritis (RA) is a systemic inflammatory disease that mainly affects the synovial joints. Although involvement of the fibroblast growth factor (FGF) signaling pathway has been suggested as an important modulator in RA development, no clear evidence has been provided. In this study, we found that synovial fluid basic FGF (bFGF) concentration was significantly higher in RA than in osteoarthritis (OA) patients. bFGF stimulates proliferation and migration of human fibroblast-like synoviocytes (FLSs) by activation of the bFGF-FGF receptor 3 (FGFR3)-ribosomal S6 kinase 2 (RSK2) signaling axis...
March 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29535000/pentoxifylline-inhibits-angiogenesis-via-decreasing-dll4-and-notch1-expression-in-mouse-proepicardial-explant-cultures
#20
Justyna Niderla-Bielińska, Krzysztof Bartkowiak, Bogdan Ciszek, Eric Czajkowski, Ewa Jankowska-Steifer, Alicja Krejner, Anna Ratajska
Pentoxifylline (PTX), a non-specific inhibitor of cAMP phosphodiesterases, is commonly used for treatment of peripheral vascular disorders although its direct action on endothelial cells is not well described. The aim of this study was to determine the influence of PTX on tubule formation and mRNA expression for angiogenesis-related proteins in endothelial cell line C166 and mouse proepicardial explants cultured on collagen. C166 cells and explants were stimulated with proangiogenic cocktail containing bFGF/VEGF-A120 /VEGF-A164 and with proangiogenic cocktail enriched with PTX...
March 10, 2018: European Journal of Pharmacology
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