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Wu H, Xia T, Wei X, Chen L, Mo L, Yu B, Xia X, Jiang X. Relationship between diffusion-weighted imaging and Bcl-2 expression in rabbit models of hepatic VX2 tumors after radiotherapy. J BIOL REG HOMEOS AG 2013; 27:487-495. [PMID: 23830398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The paper aims to study diffusion-weighted imaging (DWI) and Bcl-2 gene expression in hepatic VX2 tumors after three-dimensional conformal radiotherapy (3D-CRT), we successfully developed 40 rabbit models with hepatic VX2 tumors. 3D-CRT was performed on 28 rabbit hepatic VX2 tumors, which were then randomly and evenly divided into four groups. The remaining 12 controls did not receive radiotherapy. Conventional and DWI was performed at 1, 5, 10, and 15 days following radiation therapy. We measured apparent diffusion coefficients (ADCs) in both a region of interest (ROI) of the VX2 tumor tissue and normal liver tissue and then calculated the ratio between them. RT-PCR was performed to detect the expression of the anti-apoptotic gene Bcl-2. On days 5 and 10, the ADC ratios of the radiotherapy groups were 1.322+-0.270 and 0.964+-0.341, respectively. On days 5, 10, and 15, Bcl-2 gene expression in the radiotherapy group was 0.563+-0.284, 0.421+-0.242, and 0.314+-0.152, respectively. For all three days, the gene expression values from the radiotherapy group were significantly lower than that in the control group (P less than 0.01). Statistical analysis revealed that ADC ratio and Bcl-2 gene expression were significantly negatively correlated (r=-0.493, P less than 0.01). Our results demonstrated that DWI sequence can reflect molecular changes at different time points for hepatic VX2 tumors following radiotherapy.
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327
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Wei C, Kong L, Wei X, Chen L, Liu X, Zhang X, Liu X, Liu H. Pharmacokinetics of a New Tetramethylpyrazine Analogue CXC195 in Rats. Drug Res (Stuttg) 2013; 63:342-5. [DOI: 10.1055/s-0033-1341423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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328
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Ran J, Han T, Ding X, Wei X, Zhang L, Zhang Y, Li T, Nie S, Chen L. Association study between Y-chromosome haplogroups and susceptibility to spermatogenic impairment in Han People from southwest China. GENETICS AND MOLECULAR RESEARCH 2013; 12:59-66. [DOI: 10.4238/2012.january.22.4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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329
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Gong C, Qi T, Wei X, Qu Y, Wu Q, Luo F, Qian Z. Thermosensitive polymeric hydrogels as drug delivery systems. Curr Med Chem 2013; 20:79-94. [PMID: 23092130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 10/16/2012] [Accepted: 10/16/2012] [Indexed: 06/01/2023]
Abstract
Thermosensitive hydrogels are very important biomaterials used in drug delivery systems (DDSs), which gained increasing attention of researchers. Thermosensitive hydrogels have great potential in various applications, such as drug delivery, cell encapsulation, tissue engineering, and etc. Especially, injectable thermosensitive hydrogels with lower sol-gel transition temperature around physiological temperature have been extensively studied. By in vivo injection, the hydrogels formed non-flowing gel at body temperature. Upon incorporation of pharmaceutical agents, the hydrogel systems could act as sustained drug release depot in situ. Injectable thermosensitive hydrogel systems have a number of advantages, including simplicity of drug formulation, protective environment for drugs, prolonged and localized drug delivery, and ease of application. The objective of this review is to summarize fundamentals, applications, and recent advances of injectable thermosensitive hydrogel as DDSs, including chitosan and related derivatives, poly(N-isopropylacrylamide)-based (PNIPAAM) copolymers, poly(ethylene oxide)/poly(propylene oxide) (PEO/PPO) copolymers and its derivatives, and poly(ethylene glycol)/ biodegradable polyester copolymers.
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Gong C, Qi T, Wei X, Qu Y, Wu Q, Luo F, Qian Z. Thermosensitive Polymeric Hydrogels As Drug Delivery Systems. Curr Med Chem 2012. [DOI: 10.2174/0929867311302010009] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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331
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Wei X, Georgescu R, Ali N, Morjan I, George TA, Dumitrache F, Birjega R, Chipara M, Skomski R, Sellmyer DJ. On the synthesis and physical properties of iron doped SnO2 nanoparticles. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2012; 12:9299-9301. [PMID: 23447992 DOI: 10.1166/jnn.2012.6784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The synthesis of iron doped tin oxide by pulsed laser pyrolysis is reported. The as obtained nanoparticles have a dominant SnO2 phase (as revealed by Wide Angle X-ray Scattering), with particles of the order of 10 nm. The doping with iron or iron oxide triggers magnetic properties as confirmed by SQUID experiments. EDX measurements supported the presence of Fe while Wide Angle X-ray Scattering failed to sense any iron or iron-oxide phase. It is concluded that Fe is well dispersed within the tin-oxide nanoparticles. The coercitive field has a complex dependence on the Fe/Sn content suggesting that the magnetization is not controlled solely by the amount of Fe dispersed within the nanoparticles.
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332
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Wei X, Wang Z, Yang C, Wu B, Liu X, Yi H, Chen Z, Wang F, Bai Y, Li J, Zhu X, Li M. Development of a simplified Chinese version of the Hip Disability and Osteoarthritis Outcome Score (HOOS): cross-cultural adaptation and psychometric evaluation. Osteoarthritis Cartilage 2012; 20:1563-7. [PMID: 22944526 DOI: 10.1016/j.joca.2012.08.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 07/27/2012] [Accepted: 08/22/2012] [Indexed: 02/02/2023]
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333
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Komaki R, Allen P, Wei X, Blumenschein G, Wistuba I, Lee J, Welsh J, O'Reilly M, Tang X, Hong W. The Phase II Trial of Erotinib and Radiation Therapy Following Chemoradiation Therapy for Patients With Stage III Non-small Cell Lung Cancer has Shown a Favorable Response Profile. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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334
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Shang X, Li Q, Cai R, Huang J, Wei X, Xu X. Molecular characterization and clinical presentation of HKαα and anti-HKαα alleles in southern Chinese subjects. Clin Genet 2012; 83:472-6. [DOI: 10.1111/cge.12021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 09/14/2012] [Accepted: 09/14/2012] [Indexed: 11/26/2022]
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335
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Ba K, Yang X, Wu L, Wei X, Fu N, Fu Y, Cai X, Yao Y, Ge Y, Lin Y. Jagged-1-mediated activation of notch signalling induces adipogenesis of adipose-derived stem cells. Cell Prolif 2012; 45:538-44. [PMID: 23046039 DOI: 10.1111/j.1365-2184.2012.00850.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 07/19/2012] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES Notch signalling plays an important role in many cell activities, involving proliferation, migration, differentiation and cell death. The aim of this study was to investigate effects of such signalling on adipogenesis of mouse adipose-derived stem cells (mASCs). MATERIALS AND METHODS Jagged1 (50 and 100 ng/ml) was added to mASCs to activate Notch signalling, 2 days before adipogenic induction. At 5 and 7 days after induction, oil red-O staining was performed to evaluate lipid accumulation. Then real-time PCR was performed to examine expression of Notch downstream genes (Notch-1, -2, Hes-1 and Hey-1) and adipogenic transcription factor (PPAR-γ). Expressions of Hes-1 and PPAR-γ at protein level were confirmed by immunofluorescence staining. RESULTS Our data indicated that Jagged1 promoted adipogenic differentiation of mASCs. Moreover, Jagged1 also increased expression of Notch downstream genes and PPAR-γ. Expressions of Hes-1 and PPAR-γ were found to be enhanced in Jagged1 pre-treated mASCs when compared to controls. DISCUSSION The results led to the conclusion that activation of Notch signalling had stimulated adipogenesis of mASCs in the presence of adipogenic medium by promoting expression of PPAR-γ.
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Wan H, Zhao Y, Wei X, Hui K, Giesy J, Wong CK. PFOS-induced hepatic steatosis, the mechanistic actions on β-oxidation and lipid transport. Biochim Biophys Acta Gen Subj 2012; 1820:1092-101. [DOI: 10.1016/j.bbagen.2012.03.010] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 03/15/2012] [Accepted: 03/16/2012] [Indexed: 02/06/2023]
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337
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Andonian G, Stratakis D, Babzien M, Barber S, Fedurin M, Hemsing E, Kusche K, Muggli P, O'Shea B, Wei X, Williams O, Yakimenko V, Rosenzweig JB. Dielectric wakefield acceleration of a relativistic electron beam in a slab-symmetric dielectric lined waveguide. PHYSICAL REVIEW LETTERS 2012; 108:244801. [PMID: 23004279 DOI: 10.1103/physrevlett.108.244801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Indexed: 06/01/2023]
Abstract
We report first evidence of wakefield acceleration of a relativistic electron beam in a dielectric-lined slab-symmetric structure. The high energy tail of a ∼60 MeV electron beam was accelerated by ∼150 keV in a 2 cm-long, slab-symmetric SiO2 waveguide, with the acceleration or deceleration clearly visible due to the use of a beam with a bifurcated longitudinal distribution that serves to approximate a driver-witness beam pair. This split-bunch distribution is verified by longitudinal reconstruction analysis of the emitted coherent transition radiation. The dielectric waveguide structure is further characterized by spectral analysis of the emitted coherent Cherenkov radiation at THz frequencies, from a single electron bunch, and from a relativistic bunch train with spacing selectively tuned to the second longitudinal mode (TM02). Start-to-end simulation results reproduce aspects of the electron beam bifurcation dynamics, emitted THz radiation properties, and the observation of acceleration in the dielectric-lined, slab-symmetric waveguide.
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Du H, Grob SR, Zhao L, Lee J, El-Sahn M, Hughes G, Luo J, Schaf K, Duan Y, Quach J, Wei X, Shaw P, Granet D, Zhang K. Myotonia congenita with strabismus in a large family with a mutation in the SCN4A gene. Eye (Lond) 2012; 26:1039-43. [PMID: 22653516 DOI: 10.1038/eye.2012.80] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND/AIMS To determine the genetic basis of myotonia congenita (MC) and strabismus in a large Caucasian family. METHODS Seven patients making up four generations of a family with MC and strabismus were recruited. All patients had at least one standard ophthalmic examination, including best-corrected visual acuity, refraction, and ocular motility measurements. CLCN1 and SCN4A genes were sequenced and analysed for mutations. RESULTS Five out of the seven family members were diagnosed with MC by clinical history and electromyography. Ophthalmic history and exam revealed eyelid myotonia and strabismus. All patients with MC were diagnosed with strabismus between the ages of 3 and 6 and required surgical restoration of ocular alignment. Sequencing results revealed a c. 1333G>A; p. Val445Met mutation in the SCN4A gene. CONCLUSION There are few reports describing eyelid myotonia and strabismus in patients diagnosed with MC. We found significant ocular involvement in a family with a mutation in SCN4A. Future studies may confirm that MC with significant ocular involvement can be used to direct genetic analysis.
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He W, Wei X, Hsieh H, Harvey A, Chen W. SU-E-T-227: Re-Evaluation of Dose Distribution and Margins for IMRT Prostate Plans. Med Phys 2012; 39:3755. [DOI: 10.1118/1.4735290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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340
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Owusu-Edusei K, Tao G, Gift TL, Tun Y, Kamb ML, Wei X, Wang LM, Bulterys M. P177 Investigating the cost-effectiveness of integrated prenatal HIV/syphilis screening to prevent adverse pregnancy outcomes in China. Br J Vener Dis 2012. [DOI: 10.1136/sextrans-2012-050601c.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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341
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Li XF, Guo YJ, Zhang DM, Chen Z, Wei X, Li YH, Zhang SL, Tao JY, Dong JH, Mei YW, Li LL, Zhao L. Protective activity of the ethanol extract of Cynanchum paniculatum (BUNGE) Kitagawa on treating herpes simplex encephalitis. Int J Immunopathol Pharmacol 2012; 25:259-66. [PMID: 22507338 DOI: 10.1177/039463201202500128] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To date there has been no valid treatment for herpes simplex encephalitis (HSV). This study explores the protective activity of ethanol extract of Cynanchum paniculatum (bunge) kitagawa for treatment of HSV. Cell models and animal models were established and divided into 4 groups: normal group, virus group, cynanchum paniculatum group and Dexamethasone group. Flow cytometry was employed to detect apoptosis of cell model and TUNEL assay was chosen to detect apoptosis of animal tissues. The survival time of the animal models was observed. ELISA was used to measure TNF-alpha expression and the Greiss method to measure Nitric Oxide (NO) expression in the mouse brain. As a result, it was found that extract of Cynanchum paniculatum can improve the survival rate of HSV-infected mice. The extract could prevent apoptosis in the neuron cell model and reduce apoptosis rate in brain tissue after HSV infection. With the extract intervention, TNF-alpha and NO levels in brain tissue were significantly decreased in the animal model. In conclusion, the extract of Cynanchum paniculatum can prevent HSV-inducing impairment in the cell and animal model of HSE.
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342
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Du G, Shi Z, Xia D, Wei X, Zhang L, Parvizi N, Zhao R. Cysteamine improves growth performance and gastric ghrelin expression in preweaning piglets. Domest Anim Endocrinol 2012; 42:203-9. [PMID: 22236828 DOI: 10.1016/j.domaniend.2011.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 12/08/2011] [Accepted: 12/09/2011] [Indexed: 01/08/2023]
Abstract
The aim of the present study was to investigate the effect of cysteamine on growth performance of preweaning piglets and gastric expression of ghrelin mRNA in vivo and in vitro. Twelve litters of newborn piglets were allocated randomly to control and treatment groups. From 15 d of age, piglets in the control group were fed basal creep diet, whereas the treatment group received basal diet supplemented with 120 mg cysteamine per kg of diet until weaning on 35 d of age. Body weight gain, creep feed consumption, and diarrhea rates were recorded, and gastric mucosal tissues were collected for quantifying mRNA expression. To evaluate the direct effect of cysteamine on gastric ghrelin expression, primary cultures of gastric mucosal cells isolated from 35-d-old piglets were exposed to cysteamine for 20 h at 0, 1, 10, and 100 μg/mL, respectively. Dietary cysteamine increased (P < 0.05) average daily creep feed consumption and BW gain in preweaning pigs, which was accompanied by reduction in diarrhea rates. At 35 d of age, piglets treated with cysteamine showed increased (P < 0.05) ghrelin and gastrin and decreased (P < 0.05) somatostatin mRNA expression in gastric mucosa. Moreover, dietary cysteamine treatment increased serum concentration of gastrin (P < 0.05). In vitro, cysteamine significantly increased ghrelin mRNA expression in gastric mucosal cells at the concentration of 10 μg/mL. In conclusion, dietary cysteamine is effective in improving the growth performance and health condition of preweaning piglets, which is associated with its stimulatory effects on gastric ghrelin mRNA expression both in vivo and in vitro.
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343
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Watkins A, Wei X, Sanchez P, Ho H, Zhang P, Hu J, Wu Z, Griffith B. 760 Evaluation of the Infant Jarvik 2000 Heart in a Neonate Piglet Model. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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344
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Sanchez P, Bittle G, Williams K, Pasrija C, Cooper C, Wei X, Wu Z, Griffith B. 635 Ex-Vivo Lung Evaluation of Pre-Arrest Heparinization in Donation after Cardiac Death. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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345
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Wang P, Wei X, Zhou Y, Wang YP, Yang K, Zhang FJ, Jiang R. Effect of ginsenoside Rg1 on proliferation and differentiation of human dental pulp cells in vitro. Aust Dent J 2012; 57:157-65. [PMID: 22624755 DOI: 10.1111/j.1834-7819.2012.01672.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Human dental pulp cells (hDPCs) have the potency to proliferate and differentiate into odontoblasts and play an important role in dentine formation and reparation. The aim of the present study is to evaluate the effects of ginsenoside Rg1 on the proliferation and differentiation of hDPCs. METHODS hDPCs were incubated with different concentrations of ginsenoside Rg1 (0.1, 0.5, 2.5, 5, 10 and 20 μmol/L). The effects of ginsenoside Rg1 on the proliferative ability of hDPCs were evaluated by a fibroblast colony forming test, MTT assay and flow cytometry for cell cycle. The control group, osteogenic induction group, ginsenoside Rg1 (5 μmol/L) group and combination group were designed, and alkaline phosphatase (ALP) activity and FQ-PCR for gene expressions of dentine sialophosphoprotein (DSPP) and dentine matrix protein 1 (DMP1) were performed to evaluate the differentiation of hDPCs. RESULTS The proliferative ability of hDPCs in ginsenoside Rg1 was significantly enhanced (p < 0.05), especially in the ginsenoside Rg1 (5 μmol/L) group. ALP activity and gene expressions of DSPP and DMP1 were increased in the induction group, ginsenoside Rg1 group, and their combination group compared with the control group (p < 0.05). CONCLUSIONS The results indicate that ginsenoside Rg1 promotes the proliferation and differentiation of hDPCs.
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Wei X, Pushalkar S, Estilo C, Wong C, Farooki A, Fornier M, Bohle G, Huryn J, Li Y, Doty S, Saxena D. Molecular profiling of oral microbiota in jawbone samples of bisphosphonate-related osteonecrosis of the jaw. Oral Dis 2012; 18:602-12. [PMID: 22443347 PMCID: PMC7167636 DOI: 10.1111/j.1601-0825.2012.01916.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oral Diseases (2012) 18, 602–612 Objective: Infection has been hypothesized as a contributing factor to bisphosphonate (BP)‐related osteonecrosis of the jaw (BRONJ). The objective of this study was to determine the bacterial colonization of jawbone and identify the bacterial phylotypes associated with BRONJ. Materials and methods: Culture‐independent 16S rRNA gene‐based molecular techniques were used to determine and compare the total bacterial diversity in bone samples collected from 12 patients with cancer (six, BRONJ with history of BP; six, controls without BRONJ, no history of BP but have infection). Results: Denaturing gradient gel electrophoresis profile and Dice coefficient displayed a statistically significant clustering of profiles, indicating different bacterial population in BRONJ subjects and control. The top three genera ranked among the BRONJ group were Streptococcus (29%), Eubacterium (9%), and Pseudoramibacter (8%), while in the control group were Parvimonas (17%), Streptococcus (15%), and Fusobacterium (15%). H&E sections of BRONJ bone revealed layers of bacteria along the surfaces and often are packed into the scalloped edges of the bone. Conclusion: This study using limited sample size indicated that the jawbone associated with BRONJ was heavily colonized by specific oral bacteria and there were apparent differences between the microbiota of BRONJ and controls.
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Wei X, Chen J, Su F, Su X, Hu T, Hu S. Stereospecificity of ginsenoside Rg3 in promotion of the immune response to ovalbumin in mice. Int Immunol 2012; 24:465-71. [DOI: 10.1093/intimm/dxs043] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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348
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Komaki R, Wistuba I, Meyn R, Lee J, Wei X, Allen P, Tang X, O'Reilly M, Welsh J, Hong W. 49 PHASE II STUDY ERLOTINIB/RT AND CHT/RT FOLLOWED BY CONSOLIDATION OF CHT FOR PATIENTS WITH STAGE III NON-SMALL CELL LUNG CANCER (NSCLC): ANALYSIS OF PATIENT SPECIMENS FOR BIOMARKERS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70033-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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349
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Wei X, Peng G, Zheng S, Wu X. Differentiation of umbilical cord mesenchymal stem cells into steroidogenic cells in comparison to bone marrow mesenchymal stem cells. Cell Prolif 2012; 45:101-10. [PMID: 22324479 DOI: 10.1111/j.1365-2184.2012.00809.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 12/03/2011] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES Human umbilical cord can be obtained easily and it represents a non-controversial source of mesenchymal stem cells (MSCs) and umbilical cord Wharton's jelly-derived MSCs (UC-MSCs) have low immunogenicity. In this study, UC-MSCs were induced to become steroidogenic cells and compared to bone marrow-derived MSCs (BM-MSCs). MATERIAL AND METHODS UC-MSCs and BM-MSCs were induced to differentiate into steroidogenic cells by infection with adenovirus containing SF-1. Expression of steroidogenic mRNA was analysed by real-time RT-PCR and steroid secretion was detected by ELISA testing. Viability of differentiated cells was examined using cell counting kit-8 assay. RESULTS Both UC-MSCs and BM-MSCs expressed typical MSC markers and could differentiate into adipocytes, osteocytes and chondrocytes and both cell types had the potential to differentiate into steroidogenic cells after being infected with adenovirus containing SF-1 cDNA. However, UC-MSCs had significantly higher proliferative potential than BM-MSCs and differentiated UC-MSCs had significantly higher expression of all steroidogenic mRNAs tested over those of differentiated BM-MSCs; this included P450 side-chain cleavage enzyme, 3β-HSD, 17β-HSD type 3, LH-R, ACTH-R, P450c21 and CYP17. In addition, differentiated UC-MSCs secreted significantly more steroidogenic hormones than differentiated BM-MSCs, including testosterone and cortisol. Furthermore, differentiated UC-MSCs had significantly higher cell viability than differentiated BM-MSCs. CONCLUSIONS UC-MSCs had significantly higher potential of steroidogenic differentiation than BM-MSCs; thus, UC-MSCs could be favourable cells of choice for cell-based therapy for steroidogenic insufficiency compared to BM-MSCs.
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Tang X, Wei X, Feng Y, Zhu Z, He J, Xu Y. The Effect of Kirs Expression Profile in Donor/Recipient Pairs in HLA Identical Sibling Hematopoietic Stem Cell Transplantation. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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