Chuhong Zhu

Third Military Medical University, Ch’ung-ch’ing-shih, Chongqing Shi, China

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Publications (26)79.7 Total impact

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    ABSTRACT: Great challenges in transplantation of mesenchymal stem cells (MSCs) for treating ischemic diabetic ulcers (IDUs) are to find a suitable carrier and create beneficial microenvironment. Brain-derived neurotrophic factor (BDNF), a member of neurotrophin family, is considered angiogenic and neuroprotective. Given that IDUs are caused by vascular disease and peripheral neuropathy, we used BDNF as a stimulant, and intended to explore the role of new biomaterials complex with MSCs in wound healing. BDNF promoted the proliferation and migration of MSCs using MTT, transwell and cell scratch assays. The activity of human umbilical vein endothelial cells (HUVECs) was also enhanced by the MSC-conditioned medium in the presence of BDNF, via a VEGF-independent pathway. Because proliferated HUVECs in the BDNF group made the microenvironment more conducive to endothelial differentiation of MSCs, by establishing co-culture systems with the two cell types, endothelial cells derived from MSCs increased significantly. A new biomaterial made of polylactic acid, silk and collagen was used as the carrier dressing. After transplantation of the BDNF-stimulated MSC/biomaterial complex, the ulcers in hindlimb ischemic mice healed prominently. More blood vessel formation was observed in the wound tissue, and more MSCs were co-stained with some endothelial-specific markers such as CD31 and von Willebrand Factor (vWF) in the treatment group than in the control group. These results demonstrated that BDNF could improve microenvironment in the new biomaterial, and induce MSCs to differentiate into endothelial cells indirectly, thus accelerating ischemic ulcer healing.
    Tissue Engineering Part A 10/2014; · 4.07 Impact Factor
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    ABSTRACT: A tissue-engineered blood vessel (TEBV) modified with CS/β-CD nanoparticles is constructed, effectively controling the release of adenosine, and this type of TEBV can keep open for over 6 months. This study also demonstrates for the first time that adenosine promotes endothelial progenitor cell (EPC) mobilization and homing via energy conversion, achieving rapid endothelialization of TEBV.
    Advanced Healthcare Materials 06/2014; 3(11).
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    ABSTRACT: This investigation was aimed to explore whether over-expression of 27heme oxygenase-1 (HO-1) could protect bone marrow mesenchymal stem cells(BMSCs)against injury induced by high-concentration glucose. We cultured BMSCs in high-concentration glucose medium, and up-regulated or inhibited HO-1 expression in BMSCs through its agonist or inhibitor. We detected the ability of BMSCs proliferation and secretion respectively by MTT and enzyme-linked immunosorbnent assay (ELISA). Then we detected the effect of BMSCs conditions medium on proliferation and migration of human umbilical vein endothelial cells (HUVECs) through scratch experiments and transwell assay. It was found that HO-1 over-expression could not only promote BMSCs proliferation, but also promote secretion of vascular endothelial growth factor (VEGF), and could further accelerate the proliferation and migration of HUVECs. It could be well concluded that HO-1-over-expressing BMSCs can not only inhibit damage induced by high-concentration glucose, but can promote the proliferation and migration of vascular endothelial cells through paracrine as well. The result indicated that HO-1-over-expressing BMSCs played an important role in the treatment of diabetic vascular complication.
    Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 08/2013; 30(4):798-802.
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    ABSTRACT: Diabetic ischemic ulcer is an intractable diabetic complication. Bone marrow mesenchymal stem cells (BMSCs) have great potential in variety of tissue repair. In fact, poor cell viability and tolerance limit their ability for tissue repair. In addition, it is difficult for stem cells to home and locate to the lesion. In this study, we explore whether over-expression of heme oxygenase-1 (HO-1) in BMSCs complexed with collagen play an important role in treatment of diabetic ischemic ulcers. In vitro, over-expression of HO-1 promoted the proliferation and paracrine activity of BMSCs and the conditioned medium of BMSCs accelerated HUVECs migration and proliferation. These processes were closely related to Akt signaling pathway and were not dependent on Erk signaling pathway. In vivo, in order to make BMSCs directly act on the wound, we choose a solid collagen as a carrier, BMSCs were planted into it, ischemic wounds of diabetic mice were covered with the complex of BMSCs and collagen. The results indicate that the complex of HO-1-overexpressing BMSCs and collagen biomaterials can significantly promote angiogenesis and wound healing. These preclinical findings open new perspectives for the treatment of diabetic foot ulcers.
    Biomaterials 10/2012; · 8.31 Impact Factor
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    ABSTRACT: AMP-activated protein kinase (AMPK) is an essential sensor of cellular energy status. Defects in the α2 catalytic subunit of AMPK (AMPKα1) are associated with metabolic syndrome. The current study investigated the role AMPKα1 in the pathogenesis of obesity and inflammation using male AMPKα1-deficent (AMPKα1(-/-)) mice and their wild-type (WT) littermates. After being fed a high-fat diet (HFD), global AMPKα1(-/-) mice gained more body weight and greater adiposity and exhibited systemic insulin resistance and metabolic dysfunction with increased severity in their adipose tissues compared with their WT littermates. Interestingly, upon HFD feeding, irradiated WT mice that received the bone marrow of AMPKα1(-/-) mice showed increased insulin resistance but not obesity, whereas irradiated AMPKα1(-/-) mice with WT bone marrow had a phenotype of metabolic dysregulation that was similar to that of global AMPKα1(-/-) mice. AMPKα1 deficiency in macrophages markedly increased the macrophage proinflammatory status. In addition, AMPKα1 knockdown enhanced adipocyte lipid accumulation and exacerbated the inflammatory response and insulin resistance. Together, these data show that AMPKα1 protects mice from diet-induced obesity and insulin resistance, demonstrating that AMPKα1 is a promising therapeutic target in the treatment of the metabolic syndrome.
    Diabetes 07/2012; · 7.90 Impact Factor
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    ABSTRACT: The patency rate of small-diameter tissue-engineered blood vessels is the determinant for their application in coronary artery bypass grafting. The coronary artery is innervated by vagus nerves. The origin of vagus nerves is rich in brain-derived neurotrophic factors (BDNF). We have investigated whether BDNF could improve the patency rate of small-diameter tissue-engineered blood vessels through promoting stem cell homing and paracrine activity. In vitro, we isolated early and late endothelial progenitor cells (EPCs) and found BDNF could promote single clone formation and paracrine function of EPCs, and could also induce the proliferation, migration and differentiation of late EPCs. BDNF could enhance the capturing of EPCs in parallel-plate flow chamber. Flow cytometric analysis and laser-scanning confocal microscope showed BDNF could enhance the mobilization and homing of C57BL/6 mouse EPCs after wire injury. Based on it, BDNF was coupled to the lumen surface of the blood vessel matrix material incubated with collagen through SPDP to construct BDNF-modified small-diameter tissue-engineered blood vessel. The blood vessel patency rate was significantly higher than that of control group 8 weeks after implantation in rats and the endothelialization level was superior to control. These results demonstrate that BDNF can effectively improve patency of small-diameter tissue-engineered blood vessels through stem cell homing and paracrine, and it is expected to play an important role in the construction of substitutes for coronary artery bypass grafting.
    Biomaterials 01/2012; 33(2):473-84. · 8.31 Impact Factor
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    ABSTRACT: Endothelial progenitor cells (EPCs) mobilization and homing are critical to the development of an anti-thrombosis and anti-stenosis tissue-engineered blood vessel. The growth and activation of blood vessels are supported by nerves. We investigated whether nerve growth factors (NGF) can promote EPCs mobilization and endothelialization of tissue-engineered blood vessels. In vitro, NGF promoted EPCs to form more colonies, stimulated human EPCs to differentiate into endothelial cells, and significantly enhanced EPCs migration. Flow cytometric analysis revealed that NGF treatment increased the number of EPCs in the peripheral circulation of C57BL/6 mice. Furthermore, the treatment of human EPCs with NGF facilitated their homing into wire-injured carotid arteries after injection into mice. Decellularized rat blood vessel matrix was incubated with EDC cross-linked collagen and bound to NGF protein using the bifunctional coupling agent N-succinmidyl3-(2-pyridyldit-hio) propionate (SPDP). The NGF-bound tissue-engineered blood vessel was implanted into rat carotid artery for 1 week and 1 month. NGF-bound blood vessels possessed significantly higher levels of endothelialization and patency than controls did. These results demonstrated that NGF can markedly increase EPCs mobilization and homing to vascular grafts. Neurotrophic factors such as NGF have a therapeutic potential for the construction of tissue-engineered blood vessels in vivo.
    Biomaterials 03/2010; · 8.31 Impact Factor
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    ABSTRACT: To use the mice deficient in both adenosine receptor A(2A)(A(2A)R(-/-)) and apolipoprotein E (apoE(-/-)) to investigate the role of A(2A)R in mediating the interactions of leukocytes with injured arterial walls and the formation of arterial neointima induced by a guide wire. In apoE(-/-) mice, A(2A)R deficiency increased the size of the arterial neointima in injured carotid arteries by 83%. Arterial neointima formation was also enhanced in chimeric mice that underwent bone marrow transplantation (these mice lacked A(2A)R in their bone marrow-derived cells). Epifluorescence intravital microscopy showed that neutrophil rolling and adherence to the injured arterial area were enhanced by 80% and 110% in A(2A)R(-/-)/apoE(-/-) mice, respectively. This phenomenon occurred even though the protein levels of homing molecules on A(2A)R-deficient neutrophils were unchanged from those of wild-type neutrophils. A(2A)R-deficient neutrophils exhibited an increase in the phosphorylation of p38 mitogen-activated protein kinase, P-selectin glycoprotein ligand-1 (PSGL-1) clustering, and the affinity of b(2) integrins. The inhibition of p38 phosphorylation abrogated the increased PSGL-1 clustering and beta(2) integrin affinity, thus reversing the increased homing ability of A(2A)R-deficient leukocytes. A(2A)R plays a complex role in inflammation and tissue injury. The deficiency of A(2A)R enhances the homing ability of leukocytes and increases the formation of the arterial neointima after injury. A(2A)R antagonists are being tested for the treatment of neurodegenerative and other chronic diseases. An evaluation of the effect of A(2A)R antagonists on arterial restenosis after arterial angioplasty should be conducted.
    Arteriosclerosis Thrombosis and Vascular Biology 02/2010; 30(5):915-22. · 6.34 Impact Factor
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    ABSTRACT: Acadesine, an adenosine-regulating agent and activator of AMP-activated protein kinase, has been shown to possess antiinflammatory activity. This study investigated whether and how acadesine inhibits tissue factor (TF) expression and thrombus formation. Human umbilical vein endothelial cells and human peripheral blood monocytes were stimulated with lipopolysaccharide to induce TF expression. Pretreatment with acadesine dramatically suppressed the clotting activity and expression of TF (protein and mRNA). These inhibitory effects of acadesine were unchanged for endothelial cells treated with ZM241385 (a specific adenosine A(2A) receptor antagonist) or AMP-activated protein kinase inhibitor compound C, and in macrophages lacking adenosine A(2A) receptor or alpha1-AMP-activated protein kinase. In endothelial cells and macrophages, acadesine activated the phosphoinositide 3-kinase/Akt signaling pathway, reduced the activity of mitogen-activated protein kinases, and consequently suppressed TF expression by inhibiting the activator protein-1 and NF-kappaB pathways. In mice, acadesine suppressed lipopolysaccharide-mediated increases in blood coagulation, decreased TF expression in atherosclerotic lesions, and reduced deep vein thrombus formation. Acadesine inhibits TF expression and thrombus formation by activating the phosphoinositide 3-kinase/Akt pathway. This novel finding implicates acadesine as a potentially useful treatment for many disorders associated with thrombotic pathology, such as angina pain, deep vein thrombosis, and sepsis.
    Arteriosclerosis Thrombosis and Vascular Biology 02/2010; 30(5):1000-6. · 6.34 Impact Factor
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    ABSTRACT: Atherosclerosis is a chronic inflammatory disease of the arterial vessel wall. The A(2A) receptor (A(2A)R) plays a central role in many antiinflammatory effects of adenosine. However, the role of A(2A)R in atherosclerosis is not clear. The knockout of A(2A)R in apolipoprotein E-deficient (Apoe(-/-)/A(2A)R(-/-)) mice led to an increase in body weight and levels of blood cholesterol and proinflammatory cytokines, as well as the inflammation status of atherosclerotic lesions. Unexpectedly, Apoe(-/-)/A(2A)R(-/-) mice developed smaller lesions, as did chimeric Apoe(-/-) mice lacking A(2A)R in bone marrow-derived cells (BMDCs). The lesions of those mice exhibited a low density of foam cells and the homing ability of A(2A)R-deficient monocytes did not change. Increased foam cell apoptosis was detected in atherosclerotic lesions of Apoe(-/-)/A(2A)R(-/-) mice. In the absence of A(2A)R, macrophages incubated with oxidized LDL or in vivo-formed foam cells also exhibited increased apoptosis. A(2A)R deficiency in foam cells resulted in an increase in p38 mitogen-activated protein kinase (MAPK) activity. Inhibition of p38 phosphorylation abrogated the increased apoptosis of A(2A)R-deficient foam cells. Inactivation of A(2A)R, especially in BMDCs, inhibits the formation of atherosclerotic leisons, suggesting that A(2A)R inactivation may be useful for the treatment of atherosclerosis.
    Arteriosclerosis Thrombosis and Vascular Biology 05/2009; 29(7):1046-52. · 6.34 Impact Factor
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    ABSTRACT: Core2 1 to 6-N-glucosaminyltransferase-I (C2GlcNAcT-I) plays an important role in optimizing the binding functions of several selectin ligands, including P-selectin glycoprotein ligand. We used apolipoprotein E (ApoE)-deficient atherosclerotic mice to investigate the role of C2GlcNAcT-I in platelet and leukocyte interactions with injured arterial walls, in endothelial regeneration at injured sites, and in the formation of arterial neointima. Arterial neointima induced by wire injury was smaller in C2GlcNAcT-I-deficient apoE(-/-) mice than in control apoE(-/-) mice (a 79% reduction in size). Compared to controls, apoE(-/-) mice deficient in C2GlcNAcT-I also demonstrated less leukocyte adhesion on activated platelets in microflow chambers (a 75% reduction), and accumulation of leukocytes at injured areas of mouse carotid arteries was eliminated. Additionally, endothelial regeneration in injured lumenal areas was substantially faster in C2GlcNAcT-I-deficient apoE(-/-) mice than in control apoE(-/-) mice. Endothelial regeneration was associated with reduced accumulation of platelet factor 4 (PF4) at injured sites. PF4 deficiency accelerated endothelial regeneration and protected mice from neointima formation after arterial injury. C2GlcNAcT-I deficiency suppresses injury-induced arterial neointima formation, and this effect is attributable to decreased leukocyte recruitment to injured vascular walls and increased endothelial regeneration. Both C2GlcNAcT-I and PF4 are promising targets for the treatment of arterial restenosis.
    Arteriosclerosis Thrombosis and Vascular Biology 05/2009; 29(7):1053-9. · 6.34 Impact Factor
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    ABSTRACT: To determine if A20, a zinc finger protein that mediates the inflammatory response, affects monocyte-endothelial cell-cell interactions induced by low shear flow. Primary cultured endothelial cells (EC) were transfected with an A20 expression vector, and the VCAM-1, ICAM-1 and IL-8 mRNA, and protein expression levels in A20-transfected EC lysates were checked by PCR array and ELISA, respectively. CD14-positive monocyte migration toward and adhesion to EC were measured using a parallel plate flow chamber. Low shear stress, defined as 0.2 Pa for 6 h, normally increases VCAM-1, ICAM-1 and IL-8 expression in EC and allows for binding of monocytes to EC. We found that overexpression of A20 in EC inhibits their normal expression of VCAM-1, ICAM-1 and IL-8 under low shear stress conditions. We also found that A20 inhibits IkappaBalpha degradation in EC following low shear stress exposure and that it attenuates the rolling and EC adhesive properties of shear-induced monocytes as compared with untransfected control EC. The results demonstrate that A20 overexpression in EC inhibits low shear flow-induced monocyte-EC interactions. These findings may be useful in the development of therapeutic agents aimed at treating chronic inflammatory diseases like atherosclerosis.
    Biorheology 02/2009; 46(1):21-30. · 1.59 Impact Factor
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    ABSTRACT: Endothelial progenitor cell (EPC)-seeded intravascular stents may reduce or prevent in-stent restenosis. A20 can play an important role for preventing vascular restenosis. Therefore, it is very important how to enhance the seeding efficiency of A20-modified EPCs on the stent for preventing in-stent restenosis. To approach this problem, we developed a novel transgenic EPC-seeded stent and evaluated its feasibility and efficiency. EPCs were isolated and purified from umbilical blood using immunomagnetic beads and then transfected with the A20 gene. One stent type (type 1) was coated with EDC cross-linked collagen, and another stent type (type 2) was coated with EDC cross-linked collagen and bound to the CD34 antibody using the bifunctional coupling agent N-succinmidyl3-(2-pyridyldithio) propionate (SPDP). Then, the stents were seeded with EPCs transfected with the A20 gene. The stents were implanted in biological artificial vessels, and cell adhesion was determined in a flow chamber. Cell growth was also measured. EPCs were transfected successfully with the A20 gene. The cells covered both types of stents with favorable biological function. After placement in a flow chamber, the number of cells attached to type 1 stents significantly dropped and their distribution was scattered. Type 2 stents were basically covered with cells and there were more cells on type 2 stents than on type 1 stents (p < 0.01). Collagen-coupled antibody effectively improves the seeding of transgenic EPCs, offering a new choice of stents to prevent restenosis caused by vascular disease after interventional treatment.
    Journal of Biomedical Materials Research Part A 12/2008; 91(2):623-8. · 2.83 Impact Factor
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    ABSTRACT: To investigate whether decellularized vascular tissues and A20-regulated endothelial progenitor cells can be used for constructing a transgenic tissue-engineered blood vessel with anti-atherosclerotic vascular stenotic properties. A20 gene-transfected endothelial progenitor cells differentiated endothelial cells and smooth muscle cells attached to and migrated into the decellularized porcine vascular scaffolding in a bioreactor. The histology of the conduits revealed viable and layered tissue. Scanning electron microscopy showed confluent, homogeneous tissue surfaces. The mechanical strength of the pulsed constructs was similar to that of the human artery. In vivo, the A20 gene-transfected tissue-engineered blood vessels were transplanted into the carotid artery of a rat for 6 months. Blood vessel xenotransplantation caused hyperacute rejection; all transplanted control blood vessels were completely rejected, but A20-transfected tissue-engineered blood vessels demonstrated good flow on implantation, and remained open for 6 months postoperatively, as assessed by Doppler. The HE stain demonstrated that the vessels were patent, without evidence of stenosis or dilatation after 6 months. These results demonstrate that transgenic tissue-engineered blood vessels have long-term patency and unique anti-stenotic properties.
    Biomaterials 07/2008; 29(17):2628-36. · 8.31 Impact Factor
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    ABSTRACT: This experiment was aimed to create A20 gene site-specific zinc finger DNA-binding protein. The sequence of A20 gene promoter was analyzed with bioinformatics means and submitted to ZF Tools Server at TSRI. Using the database of the web site, we determined the A20 gene valid target sites and designed the amino acid sequence of zinc finger protein predicted to be bound to the target site. And then, the structure of the protein sequence was analyzed and homology was modeled with various bioinformatics means. Based on the characteristic of this protein, the prokaryotic expression vector pTYB11-ZFP was constructed and expressed. Thus, the artificial zinc finger protein that recognized A20 specific sequence was designed, and expressed in Escherichia coli. The results indicate that it is feasible to design engineered artificial Zinc finger proteins by means of bioinformatics.
    Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 07/2008; 25(3):662-7.
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    ABSTRACT: Artificial transcription factors (ATFs) are composed of DNA-binding and functional domains. These domains can be fused together to create proteins that can bind a chosen DNA sequence. To construct a valid ATF, it is necessary to design suitable DNA-binding and functional domains. The Cys2-His2 zinc finger motif is the ideal structural scaffold on which to construct a sequence-specific protein. A20 is a cytoplasmic zinc finger protein that inhibits nuclear factor kappa-B activity and tumor necrosis factor (TNF)-mediated programmed cell death. A20 has been shown to prevent TNF-induced cytotoxicity in a variety of cell types including fibroblasts, B lymphocytes, WEHI 164 cells, NIH 3T3 cells and endothelial cells. In order to design a zinc finger protein (ZFP) structural domain that binds specific target sequences in the A20 gene promoter region, the structure and sequence composition of this promoter were analyzed by bioinformatics methods. The target sequences in the A20 promoter were submitted to the on-line ZF Tools server of the Barbas Laboratory, Scripps Research Institute (TSRI), to obtain a specific 18 bp target sequence and also the amino acid sequence of a ZFP that would bind to it. Sequence characterization and structural modeling of the predicted ZFP were performed by bioinformatics methods. The optimized DNA sequence of this artificial ZFP was recombined into the eukaryotic expression vector pIRES2-EGFP to construct pIRES2-EGFP/ZFP-flag recombinants, and the expression and biological activity of the ZFP were analyzed by RT-PCR, western blotting and EMSA, respectively. The ZFP was designed successfully and exhibited biological activity. It is feasible to design specific zinc finger proteins by bioinformatics methods.
    BMC Biotechnology 02/2008; 8:28. · 2.59 Impact Factor
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    ABSTRACT: To investigate the biomechanical behavior of human intestines. The tensile test human intestine was performed with the electronic tension machine in this paper. The results indicate that the exponential relationship for the stress-strain of the human intestine was obtained, and the exponential coefficient a of each segment of the intestine is almost the same although the constant C is different. It also shows that the relative rate of stretch length of each segment intestines is different in longitudinal and circumferential directions. And the incremental elastic modulus of colon is less than those of small intestine. It is considered that the colon can be more easily deformed. The experimental results provide the theoretic basis for research on intestinal endoscopic microrobot.
    Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 11/2006; 23(5):1017-9.
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    ABSTRACT: In this study, we prepared the acellular bone matrix of the inbred-line Banna mini-pig by using tissue engineering method and evaluated its possible application in bone tissue engineering. Histological analysis, xenoantigen expression and biomechanical measurement were performed on the matrix. HE staining and scanning electron microscopy showed the cellular components were almost removed. Immunohischemical result demonstrated that the xenoantigen, alpha-gal,was also eliminated. There was no statistically significant difference between the acellular bone matrix group and control group. The acellular bone matrix can provide appropriate space structure and strength for grafts. In conclusion, our data suggest that acellular bone matrix is a new kind of ideal bone scaffold material.
    Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 07/2006; 23(3):551-5.
  • Shiwu Dong, Dajun Ying, Chuhong Zhu
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    ABSTRACT: To study the feasibility of core-binding factor alpha1 (Cbfal) gene modified marrow mesenchymal stem cells (MSCs) composed with porcine acellular bone extracellular matrix in repairing the radial defects. Radial defects of 1.2 cm in length were created in 40 Japanese white rabbits and they were divided into four groups. In group A, MSCs isolated from homogeneous rabbits were infected with Cbfal recombinant adenovirus and implanted into acellular bone extracellular matrix, and then the complexes were implanted into defects. In group B, the complexes including the MSCs without Cbfal gene-modified and scaffold material were implanted into defects. In group C, only the scaffold material was implanted. In group D, defects were not treated as the control. The macroscopic, X-ray and histologic analysis were performed to evaluate the repair effect at 4, 8 and 12 weeks postoperatively. The repaired radius were examined by biomechanical test at 12 weeks postoperatively. By gross examination,mature hard new bone formed at grafted areas at 12 weeks postoperatively in group A, osteotomized ends connected by much callus in group B and less callus in group C at grafted areas. In contrast, bone nonunion formed in group D. X-ray and histological examination showed that the repaired results of defects in the group A were better than those in others groups evidently in extracellular matrix degradation, new bone remodeling and marrow cavity rebuilding at 4 and 8 weeks postoperatively. At 12 weeks postoperatively, the cortical bone became mature lamellar bone, new bone remodeling was complete and marrow cavity was smooth in group A. Only proximal end of defects showed that marrow cavity was refolded partially in group B. The continuous callus could be observed in bone defect, and no obvious marrow cavity remodeling was observed in group C. Lots of fibrous connective tissue filled in defect and bone nonunion was shown in group D. There was no significant difference in the damage compress loading of repaired radius between groups A, B and D (P>0.05), but there was significant difference between groups C and D (P<0.01). These results demonstrate that Cbfal gene modified MSCs combined with acellular bone extracellular matrix can be used to repair rabbit radial defects.
    Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery 05/2006; 20(5):555-9.
  • Chuhong Zhu, Dajun Ying, Jianhong Mi
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    ABSTRACT: To explore the human smooth muscle cells seeding in blood vessel of minor pig after trypsin treatment and provide data for xenotransplantation and for using pig vessel in tissue engineering. HE and silver stain were used for checking the smooth muscle cells seeding in acellular blood vessel. The results showed that the smooth muscle cells seeding succeeded and the smooth muscle cells were in normal morphological distribution. These demonstrate that the pig aorta can be used for smooth muscle cells seeding, and hence for constructing new vascular grafts.
    Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 09/2005; 22(4):695-7.

Publication Stats

115 Citations
79.70 Total Impact Points


  • 2003–2014
    • Third Military Medical University
      Ch’ung-ch’ing-shih, Chongqing Shi, China
  • 2009–2012
    • University of Minnesota Twin Cities
      • Department of Medicine
      Minneapolis, MN, United States
    • University of Minnesota Duluth
      • Medical School
      Duluth, Minnesota, United States