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Cao L, Pan D, Li D, Zhang Y, Chen Q, Xu T, Li W, Wu W. Relation between anti-atherosclerotic effects of IRAK4 and modulation of vascular smooth muscle cell phenotype in diabetic rats. Am J Transl Res 2016; 8:899-910. [PMID: 27158377 PMCID: PMC4846934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/06/2016] [Indexed: 06/05/2023]
Abstract
Deregulation of phenotypic modulation in VSMCs is the initial stage of atherosclerosis, especially in diabetes. Functional deficiency of IRAK4 inhibits the formation of vascular lesions in ApoE-/- mice. Therefore, in this study, we examined the functions of IRAK4 in the regulation of VSMCs differentiation and phenotypic modulation at the levels of transcription and translation in T2D rats. The T2D rat model was generated by feeding a high-fat diet and injecting a low dose of streptozotocin intraperitoneally. VSMCs were isolated from the thoracic aortas of the T2D rats. VSMCs proliferation and migration were measured using water soluble tetrazolium salt-1 assay, 5-ethynyl-29-deoxyuridine staining and migration assay. IRAK4 was knocked down by siRNA and inhibited by an IRAK1/4 inhibitor. The mRNAs and proteins of signal molecules and phenotypic markers were detected by qRT-PCR and western blotting. The results demonstrated that LPS significantly increased viability, cell migration rate and amount of DNA in VSMCs. The IRAK4 inhibitor also reduced LPS-mediated protein expression of myosin heavy chain and nuclear factor κB p65 subunit and increased smooth muscle 22α expression. Moreover, IRAK4 knock-down reduced the LPS-mediated expression of mRNAs for myosin heavy chain, nuclear factor κB p65 subunit, and monocyte chemoattractant protein-1 (MCP-1), but increased the mRNA of smooth muscle 22α in VSMCs. The activation of IRAK4 phenotypically modulated VSMCs from differentiation to dedifferentiation. Inactivation of IRAK4 exerts a protective effect on VSMCs differentiation and inhibits inflammation. IRAK4 could therefore be a target for interventions to prevent and treat the initial phase of atherosclerosis.
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Hu S, Qiao J, Fu Q, Chen C, Ni W, Wujiafu S, Ma S, Zhang H, Sheng J, Wang P, Wang D, Huang J, Cao L, Ouyang H. Correction: Transgenic shRNA pigs reduce susceptibility to foot and mouth disease virus infection. eLife 2016; 5:e14281. [PMID: 26840180 PMCID: PMC4755748 DOI: 10.7554/elife.14281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 01/07/2016] [Indexed: 11/13/2022] Open
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Xie Y, Wang H, Cheng X, Wu Y, Cao L, Wu M, Xie W, Wang G, Hao H. Farnesoid X receptor activation promotes cell proliferation via PDK4-controlled metabolic reprogramming. Sci Rep 2016; 6:18751. [PMID: 26728993 PMCID: PMC4700422 DOI: 10.1038/srep18751] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 11/23/2015] [Indexed: 12/16/2022] Open
Abstract
Farnesoid X receptor (FXR) plays a pivotal role in the regulation of various metabolic pathways as well as liver regeneration. However, the casual link between cell proliferative effects during liver regeneration and metabolic regulation of FXR was elusive. In this study, we found that FXR activation significantly promotes HepG2 cell proliferation accompanied with metabolic switch towards the excessive accumulation of aerobic glycolytic intermediates including lactic acid, pyruvate and the subsequently increased biosynthesis of glycine. This FXR-induced metabolic switch was found dependent on an up-regulation of pyruvate dehydrogenate kinase 4 (PDK4), a FXR target gene. FXR agonists were found to promote liver regeneration in the murine model of APAP induced liver injury, which was associated with a metabolic switch favoring the accumulation of glycolytic intermediates as precursors for generation of biomass. However, FXR activation has little effect on the glycolytic metabolism in healthy primary hepatocytes in vitro and the liver of healthy mice in vivo. Therefore, we conclude that FXR may promote the proliferation of tumor cells and the hepatocytes in the process of liver regeneration by activating the PDK4-mediated metabolic reprogramming to generate glycolytic intermediates essential for rapid biomass generation, establishing a mechanistic link between cell proliferation and metabolic switch.
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Tao SQ, Xia RS, Li F, Cao L, Fan H, Fan Y, Yang LJ. Efficacy of 3.6% topical ALA-PDT for the treatment of severe acne vulgaris. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:225-231. [PMID: 26875889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To evaluate the efficacy and safety of topical 5-aminolevulinic acid (ALA) mediated photodynamic therapy (PDT) for the treatment of severe acne vulgaris. PATIENTS AND METHODS A total of 125 patients with Pillsbury III-IV severe facial acne were treated with 3 courses of ALA-PDT with an interval of 2 weeks. ALA gel (3.6%) was applied topically to acne lesions for 1.5 h. The lesions were irradiated by a LED light of 633 nm with a light intensity of 66 mW/cm² and a light dose of 126 J/cm². Patients were evaluated for efficacy and safety at weeks 2, 4, 6, 8, 12 after the initial treatment. RESULTS The total effective rates were 1.6%, 24.8%, 68.8%, 89.6% and 88.8% at the 2- 4- 6- 8- and 12-week after the initial treatment respectively. The clinical outcomes were the best at 4 weeks after the final treatment. The best effective rate and cure rate were 89.6% and 44% respectively. 26 patients and 16 patients showed apparent exacerbation of acne lesions before the 2nd and 3rd treatment respectively, but all of them showed good or excellent improvement after 3-course treatment. Adverse reactions were mild and transient. CONCLUSIONS 3.6% ALA-PDT is a simple, safe and effective therapeutic option for the treatment of severe acne vulgaris.
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Huang ZL, Li H, Yuan XZ, Lin L, Cao L, Xiao ZH, Jiang LB, Li CZ. The energy consumption and pellets’ characteristics in the co-pelletization of oil cake and sawdust. RSC Adv 2016. [DOI: 10.1039/c5ra23346a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Improvement of the co-pelletization of biomass (cedarwood and camphorwood) and oil cake was carried out in the present work.
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Chen JT, Younusi A, Cao L, Tian Z, Zhou YJ, Song XH. Potential role of heat-shock proteins in giant cell tumors. GENETICS AND MOLECULAR RESEARCH 2015; 14:19144-54. [PMID: 26782567 DOI: 10.4238/2015.december.29.24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the differential expression protein profile of giant cell tumors (GCTs), which can be used to monitor the tumor's recurrence and metastasis, to provide preliminary results for further study. We also explored heat-shock protein (HSP) inhibitor that prevents tumors from recurring and migrating. A stable isotope-labeling strategy using isobaric tags for relative and absolute quantitation coupled with two-dimensional liquid chromatography tandem mass spectrometry was used to separate and identify differentially expressed proteins. A total of 467 differentially expressed proteins were identified in GCT tissues. Up to 311 proteins were upregulated, whereas 156 proteins were downregulated in GCT tissues. Three of the differentially expressed HSPs, namely HP90A, HSPB1, and HSPB2, were upregulated. The differentially expressed proteins of GCT tissues will provide a scientific foundation for tumor prognosis, and for further studies exploring HSP inhibitor to prevent tumor recurrence and migration.
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Ammar M, Jordan CT, Cao L, Lim E, Bouchlaka Souissi C, Jrad A, Omrane I, Kouidhi S, Zaraa I, Anbunathan H, Mokni M, Doss N, Guttman-Yassky E, El Gaaied AB, Menter A, Bowcock AM. CARD14 alterations in Tunisian patients with psoriasis and further characterization in European cohorts. Br J Dermatol 2015; 174:330-7. [PMID: 26358359 DOI: 10.1111/bjd.14158] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Rare highly penetrant gain-of-function mutations in caspase recruitment domain family, member 14 (CARD14) can lead to psoriasis, a chronic inflammatory disease of the skin and other organs. OBJECTIVES To investigate the contribution of rare CARD14 variants to psoriasis in the Tunisian population and to expand knowledge of CARD14 variants in the European population. METHODS CARD14 coding exons were resequenced in patients with psoriasis and controls from Tunisia and Europe, including 16 European cases with generalized pustular psoriasis (GPP). Novel variants were evaluated for their effect on nuclear factor (NF)-κB signalling. RESULTS Rare variants in CARD14 were significantly enriched in Tunisian cases compared with controls. Three were collectively found in 5% of Tunisian cases, and all affected the N-terminal region of the protein harbouring its caspase recruitment domain or coiled-coil domain. These variants were c.349G>A (p.Gly117Ser), c.205C>T (p.Arg69Trp) and c.589G>A (p.Glu197Lys). c.589G>A (p.Glu197Lys) led to upregulation of NF-κB activity in a similar manner to that of previously described psoriasis-associated mutations. p.Arg69Trp led to sevenfold downregulation of NF-κB activity. One Tunisian case harboured a c.1356+5G>A splice alteration that is predicted to lead to loss of exon 9, which encodes part of the coiled-coil domain. No cases of GPP harboured an interleukin-36RN mutation, but one of 16 cases of GPP with a family history of psoriasis vulgaris harboured a c.1805C>T (p.Ser602Leu) mutation in CARD14. CONCLUSIONS These observations provide further insights into the genetic basis of psoriasis in the Tunisian population and provide functional information on novel CARD14 variants seen in cases from Tunisia and other populations.
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Li M, Zhou ZP, Sun M, Cao L, Chen J, Qin YY, Gu JH, Han F, Sheng R, Wu JC, Ding Y, Qin ZH. Reduced Nicotinamide Adenine Dinucleotide Phosphate, a Pentose Phosphate Pathway Product, Might Be a Novel Drug Candidate for Ischemic Stroke. Stroke 2015; 47:187-95. [PMID: 26564104 DOI: 10.1161/strokeaha.115.009687] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 10/16/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Our previous study has defined a role of TP53-induced glycolysis and apoptosis regulator in neuroprotection against ischemic injury through increasing the flow of pentose phosphate pathway. We hypothesized that the pentose phosphate pathway product nicotinamide adenine dinucleotide phosphate (NADPH) could be a novel drug for treatment of ischemic stroke. METHODS The NADPH was given before, at the onset, or after stroke onset with single or repeated intravenous (mice and rats) or intraperitoneal injections (monkey). The short- and long-term therapeutic effects of NADPH were evaluated in male adult ICR mice (total=614) with transient middle cerebral artery occlusion, in male adult Sprague-Dawley rats (total=114) with permanent middle cerebral artery occlusion, and in male adult rhesus monkey (total=12) with thrombotic middle cerebral artery occlusion. RESULTS Administration of NADPH led to a dramatic increase in the levels of ATP and reduced form of glutathione, whereas it decreased the levels of reactive oxygen species. NADPH significantly reduced infarct volume, improved poststroke survival, and recovery of neurological functions in mouse and rat models of stroke. Robust neuroprotection of a single dose of NADPH was seen when it was administered within 5 hours after reperfusion; however, repeat administration of NADPH twice a day for 7 days starting 24 hours after the onset of stroke also offered therapeutic effects. Pretreatment with NADPH also significantly improved the outcome of stroke insult. CONCLUSIONS Administration of exogenous NADPH significantly protected neurons against ischemia/reperfusion-induced injury in 2 rodent stroke models. Thus, NADPH might be a promising drug candidate for treatment of ischemic stroke.
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Duffy AG, Ulahannan SV, Cao L, Rahma OE, Makarova-Rusher OV, Kleiner DE, Fioravanti S, Walker M, Carey S, Yu Y, Venkatesan AM, Turkbey B, Choyke P, Trepel J, Bollen KC, Steinberg SM, Figg WD, Greten TF. A phase II study of TRC105 in patients with hepatocellular carcinoma who have progressed on sorafenib. United European Gastroenterol J 2015; 3:453-61. [PMID: 26535124 DOI: 10.1177/2050640615583587] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Endoglin is an endothelial cell membrane receptor essential for angiogenesis and highly expressed on the vasculature of many tumor types, including hepatocellular carcinoma (HCC). TRC105 is a chimeric IgG1 anti-CD105 monoclonal antibody that inhibits angiogenesis and tumor growth by endothelial cell growth inhibition, ADCC and apoptosis, and complements VEGF inhibitors. OBJECTIVE The aim of this phase II study was to evaluate the efficacy of anti-endoglin therapy with TRC105 in patients with advanced HCC, post-sorafenib. METHODS Patients with HCC and compensated liver function (Childs-Pugh A/B7), ECOG 0/1, were enrolled to a single-arm, phase II study of TRC105 15 mg/kg IV every two weeks. Patients must have progressed on or been intolerant of prior sorafenib. A Simon optimal two-stage design was employed with a 50% four-month PFS target for progression to the second stage. Correlative biomarkers evaluated included DCE-MRI as well as plasma levels of angiogenic biomarkers and soluble CD105. RESULTS A total accrual of 27 patients was planned. However, because of lack of efficacy and in accordance with the Simon two-stage design, 11 patients were enrolled. There were no grade 3/4 treatment-related toxicities. Most frequent toxicities were headache (G2; N = 3) and epistaxis (G1; N = 4). One patient had a confirmed partial response by standard RECIST criteria and biologic response on DCE-MRI but the four-month PFS was insufficient to proceed to the second stage of the study. CONCLUSIONS TRC105 was well tolerated in this HCC population following sorafenib. Although there was evidence of clinical activity, this did not meet prespecified criteria to proceed to the second stage. TRC105 development in HCC continues as combination therapy with sorafenib.
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Wang Y, Deng L, Cao L, Xu H, Liang Z. The Outcome of Laparoscopy Versus Laparotomy for the Management of Early Stage Cervical Cancer-Meta Analysis. J Minim Invasive Gynecol 2015; 22:S4-S5. [PMID: 27679229 DOI: 10.1016/j.jmig.2015.08.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Liu JY, Li F, Wang LP, Chen XF, Wang D, Cao L, Ping Y, Zhao S, Li B, Thorne SH, Zhang B, Kalinski P, Zhang Y. CTL- vs Treg lymphocyte-attracting chemokines, CCL4 and CCL20, are strong reciprocal predictive markers for survival of patients with oesophageal squamous cell carcinoma. Br J Cancer 2015; 113:747-55. [PMID: 26284335 PMCID: PMC4559838 DOI: 10.1038/bjc.2015.290] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 07/14/2015] [Accepted: 07/20/2015] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Tumoural infiltration of T lymphocytes is determined by local patterns of specific chemokine expression. In this report, we examined the roles of CCL4 and CCL20 in the accumulation of CD8(+) cytotoxic T lymphocytes (CTLs) and regulatory T (Treg) lymphocytes in oesophageal squamous cell carcinoma (ESCC), and determined the correlations between chemokine expressions and ESCC patients' survival. METHODS Reverse transcriptase-PCR and immunohistochemistry (IHC) staining were performed to examine the expressions of interested genes. Flow cytometry was adopted to check the expressions of CCL4- and CCL6-specific receptors, CCR5 and CCR6, on CTLs and Treg cells. In addition, transwell assay was carried on. RESULTS The CCL4 expression was significantly correlated with the expression of CTL markers (CD8 and Granzyme B), whereas CCL20 was positively correlated with Treg markers (FoxP3 and IL-10). Consistently, CCR5 was found to be mainly expressed on CD8(+) T lymphocytes, while CCR6 showed prevalence on Treg lymphocytes and the frequencies of CCR5(+)CD8(+) CTLs and CCR6(+) Treg cells were higher in TIL compared with PBMC. Respectively, CCL4 and CCL20 recruited CD8(+) and regulatory T cells in vitro. Importantly, high levels of CCL4 in the lesions of ESCC patients predicted prolonged survival. Furthermore, CCL4(high)/CCL20(low) group demonstrated better overall survival, whereas CCL4(low)/CCL20(low) and CCL4(low)/CCL20(high) groups showed the worst overall survival. CONCLUSIONS Our data showed that CCL4 and CCL20 recruit functionally different T lymphocyte subsets into oesophageal carcinoma, indicating CCL4 and CCL20 are potential predictors of ESCC patients' survival.
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Yin Z, Zhai B, Zhang X, Sun B, Cao L, Zhao L, Li J, Ge N, Chen L, Qian H. 279 Human liver cancer stem cell resistance to sorafenib and enhanced sensitivity by MK2206 in vitro and in vivo. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30164-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li J, Dai K, Wang Z, Cao L, Bai X, Ruan C. Platelet functional alterations in a Bernard-Soulier syndrome patient with filamin A mutation. J Hematol Oncol 2015; 8:79. [PMID: 26133172 PMCID: PMC4496858 DOI: 10.1186/s13045-015-0171-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 06/11/2015] [Indexed: 11/23/2022] Open
Abstract
Defects in filamin A (FLNA) gene could lead to low platelet counts and decreased surface expression of glycoprotein (GP) Ibα. Here, we report and investigate the FLNA genomic alteration of a case with Bernard-Soulier syndrome (BSS), a rare hereditary bleeding disorder caused by quantitative or qualitative abnormalities in the GP Ib-IX-V receptor. DNA sequencing analysis reveals the presence of a GP Ibα c.987G > A mutation and a FLNA c.1582 G > A mutation in this patient. Transient transfection studies show that GP Ibα c.987G > A mutation abolishes the surface expression of GP Ibα on the transfected CHO cells. On the other hand, abnormal responses to collagen, including the platelet aggregation, secretion, and GP VI signaling pathways, are associated with FLNA c.1582G > A mutation. Our findings confirm a central role for FLNA in platelet-adhesive functions. The interaction between FLNA and GP Ibα in platelets deserves to be investigated.
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Hu S, Qiao J, Fu Q, Chen C, Ni W, Wujiafu S, Ma S, Zhang H, Sheng J, Wang P, Wang D, Huang J, Cao L, Ouyang H. Transgenic shRNA pigs reduce susceptibility to foot and mouth disease virus infection. eLife 2015; 4:e06951. [PMID: 26090904 PMCID: PMC4502569 DOI: 10.7554/elife.06951] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/18/2015] [Indexed: 11/13/2022] Open
Abstract
Foot-and-mouth disease virus (FMDV) is an economically devastating viral disease leading to a substantial loss to the swine industry worldwide. A novel alternative strategy is to develop pigs that are genetically resistant to infection. Here, we produce transgenic (TG) pigs that constitutively expressed FMDV-specific short interfering RNA (siRNA) derived from small hairpin RNA (shRNA). In vitro challenge of TG fibroblasts showed the shRNA suppressed viral growth. TG and non-TG pigs were challenged by intramuscular injection with 100 LD50 of FMDV. High fever, severe clinical signs of foot-and-mouth disease and typical histopathological changes were observed in all of the non-TG pigs but in none of the high-siRNA pigs. Our results show that TG shRNA can provide a viable tool for producing animals with enhanced resistance to FMDV. DOI:http://dx.doi.org/10.7554/eLife.06951.001 Foot-and-mouth disease regularly causes serious outbreaks in livestock. The virus that causes the disease can infect cattle, pigs, sheep, goats, and many species of wild animals; the disease is also highly contagious and spreads very quickly and easily. To control the spread of foot-and-mouth disease, farmers must often kill entire herds of animals that have been exposed. Wild animals that can spread the virus may also be killed in an effort to stop the spread of the disease. Vaccines that protect against foot-and-mouth disease are available and are often used to help prevent the spread of the disease. However, once an outbreak of foot-and-mouth disease begins it may be too late for vaccines to stop its spread. This is because the vaccines can take about a week to provide protection, and by that time an exposed animal may already be very ill. Previous work conducted in 2010 reported that mice could be genetically engineered to produce short stretches of RNA molecules that can switch off genes from the foot-and-mouth disease virus. Compared with normal mice infected with the foot-and-mouth disease virus, the genetically engineered mice showed little sign of the disease in their bodies. Now, Hu, Qiao, Fu et al.—including some of the researchers involved in the 2010 work—have genetically engineered pigs in the same way. The experiments show that when cells from these pigs are exposed to the foot-and-mouth disease virus in the laboratory, the virus grows much less than normal. Next, Hu, Qiao, Fu et al. injected genetically engineered pigs and non-genetically engineered pigs with the virus. All of the normal pigs developed severe symptoms very quickly, including the disease's characteristic mouth and foot sores. Additionally, examinations of these pigs' cells showed signs of the disease. But the genetically engineered pigs did not become seriously ill and their cells showed little sign of the disease. Some of the genetically engineered pigs developed a few sores but these sores appeared much later than normal. So far, the results suggest that it may be possible to develop pigs that are resistant to foot-and-mouth disease. Hu, Qiao, Fu et al. will next determine whether or not the genetically engineered pigs can pass the foot-and-mouth virus on to other pigs and livestock. DOI:http://dx.doi.org/10.7554/eLife.06951.002
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Cao L, Peng MM, Sun JJ, Yu XC, Shi B. Application of vacuum-assisted closure in seawater-immersed wound treatment under different negative pressures. GENETICS AND MOLECULAR RESEARCH 2015; 14:6146-55. [PMID: 26125815 DOI: 10.4238/2015.june.8.12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The therapeutic effect of vacuum-assisted closure (VAC) has been confirmed in many types of complex wounds, but there are few relevant reports regarding seawater-immersed wounds. The aim of this study was to determine the effect of VAC on seawater-immersed wound healing under different negative pressures and explore the optimal negative pressure value. Four purebred miniature pigs were used as the experimental animal models. Four acute, symmetrical wounds were made on each side of the spine and designated as the experimental group (wounds with 2 h of seawater immersion) and the control group (wounds without seawater immersion). Wounds were divided into a conventional dressing group and 3 further groups with different VAC therapies (negative pressure at either 120, 180, or 240 mmHg). The extent of wound healing, and speed of granulation growth and re-epithelialization were measured. Bacterial flora distribution in the wounds was observed, and fibronectin levels in the exudate of the wounds were tested. Results showed that seawater immersion aggravated wound injury and that VAC therapy with 180 mmHg negative pressure induced the fastest epidermis migration, obvious edema elimination, significant capillary proliferation, and the highest level of fibronectin, and that in wounds, the proportion of Gram-negative bacteria tended to decrease and that of Gram-positive bacteria tended to increase. Our results show that VAC promotes seawater-immersed wound healing and that 180 mmHg negative pressure may be optimal for wound healing.
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Huang X, Zhao Z, Cao L, Chen Y, Zhu E, Lin Z, Li M, Yan A, Zettl A, Wang YM, Duan X, Mueller T, Huang Y. High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction. Science 2015; 348:1230-4. [DOI: 10.1126/science.aaa8765] [Citation(s) in RCA: 1345] [Impact Index Per Article: 149.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 05/04/2015] [Indexed: 11/02/2022]
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Lv H, Wang L, Shen F, Feng J, Hu H, Cao L. [Clinical observation on therapeutic effect of myopia in children treated with abdominal acupuncture]. ZHONGGUO ZHEN JIU = CHINESE ACUPUNCTURE & MOXIBUSTION 2015; 35:567-570. [PMID: 26480555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To observe the clinical effects of myopia in children treated with abdominal acupuncture. METHODS Ninety children with myopia were randomly divided into an abdominal acupuncture group (45 cases with 90 ill eyes) and an auricular point group(45 cases with 90 ill eyes). In the abdominal acupuncture group, Zhongwan (CV 12), Shangqu(KI 17), Xiawan(CV 10), Tianshu(ST 25), Qihai(CV 6), Guanyuan(CV 4) were treated with tapping method. The needles were not retained and down to the lower in accordance with the order from Zhongwan (CV 12) to Guanyuan(CV 4) for 5 min,and the erubescence skin without blood was proper. In the auricular point group, vaccaria seeds were pasted at gan(CO12), shen(CO10),pi(CO13), wei(CO4), yan(LO5), pingjianqian(TG2i), pingjianhou(ATli) and zhen(AT3); one ear was chosen every time and the other ear the second time with pressing of patient's own for 5 min every day. The treatment was given twice a week and 10 treatments were considered as one course in the two groups. The changes of the visual levels in visual chart before treatment, 20 min after the first treatment, after 5 weeks' and 3 months' treatment were compared between the two groups,and the clinicall efficacy was compared between the two groups as well. RESULTS (1) The visual levels in visual chart were improved in the abdominal acupuncture group and auricular point group, and the effects 20 min after the first treatment, after 5 weeks' and 3 months' treatment in the abdominal acupuncture group were superior to those in the auricular point group(4. 78±0. 16 vs 4. 69±0. 22, P<0. 01; 4. 85±0. 16 vs 4. 79±0. 21, P<0. 05; 4. 89±0. 13 vs 4. 71±0. 25, P<0. 01). (2)The effective rates 20 min after the first treatment, after 5 weeks' and 3 months' treatment in the abdominal acupuncture group were better than those in the auricular point group[31. 4% (27/86) vs 0% (0/82). 81.4%(70/86) vs 60. 0%(49/82); 88. 4%(76/86) vs 51. 2%(42/82), all P<0. 01]. CONCLUSION Abdominal acupuncture for improving the visual levels of myopia in children is superior to auricular point sticking.
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Zhai XJ, Cheng HR, Long HL, Mao WK, Cao L, Xiao BR, Li RQ. Effects of docetaxel plus three-dimensional conformal radiation therapy on microvessel density and apoptosis expression in local advanced squamous non-small-cell lung cancer. GENETICS AND MOLECULAR RESEARCH 2015; 14:5399-406. [PMID: 26125735 DOI: 10.4238/2015.may.22.9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We examined the effects of weekly single-agent docetaxel plus three-dimensional conformal radiation therapy (3D-CRT) on apoptotic index (AI) and microvessel density (MVD) in local advanced non-small-cell lung squamous cancer patients and analyzed the correlation of MVD, AI, and 50% tumor shrinkage time (T0.5) The molecular mechanism of docetaxel radiosensitization was investigated. Sixty untreated patients with stage IIIA or IIIB lung squamous cancer were enrolled and randomly divided into two groups: observation (N = 30; 3D-CRT + docetaxel + adjuvant chemotherapy) and control (N = 30; 3D-CRT + adjuvant chemotherapy). From day 1 radiotherapy, the observation group received intravenous docetaxel (36 mg/m(2)) once weekly for 6 weeks. Post-radiotherapy, chemotherapy of docetaxel combined with cisplatin lasted 4-6 cycles in both groups. Before radiotherapy and within 24 h after radiotherapy (20 Gy), bronchoscopic biopsy was performed twice at the same site. To analyze the MVD of tumor specimens with immunohistochemical staining . The AI of lung cancer cells was assessed with TUNEL assay, T0.5 values were calculated. The observation group had significantly lower MVD than the control group (P < 0.05). AI significantly increased before and after treatment in the observation group compared with the control group (P < 0.05). The decreased MVD values negatively correlated with T0.5 values (r = -0.624, P < 0.05), whereas the increased AI values did not correlate with the T0.5 values. Docetaxel radiosensitization may occur by decrease in MVD and increase in AI values. Weekly single-agent docetaxel plus 3D-CRT can improve prognosis and quality of life in local advanced non-small-cell lung squamous cancer patients.
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Zhang J, Cao L, Wang H, Cheng X, Wang L, Zhu L, Yan T, Xie Y, Wu Y, Zhao M, Ma S, Wu M, Wang G, Hao H. Ginsenosides Regulate PXR/NF-κB Signaling and Attenuate Dextran Sulfate Sodium–Induced Colitis. Drug Metab Dispos 2015; 43:1181-9. [DOI: 10.1124/dmd.115.063800] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 05/15/2015] [Indexed: 12/21/2022] Open
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345
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Ping NN, Li S, Mi YN, Cao L, Cao YX. Hydrogen sulphide induces vasoconstriction of rat coronary artery via activation of Ca(2+) influx. Acta Physiol (Oxf) 2015; 214:88-96. [PMID: 25711469 DOI: 10.1111/apha.12475] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 08/21/2014] [Accepted: 02/19/2015] [Indexed: 12/12/2022]
Abstract
AIM Hydrogen sulphide (H2S) exhibits a dual modulation of isolated artery tension. This study investigated the vasoconstrictive effect of sulphur sodium hydride (NaHS), a donor of gaseous H2S, on rat coronary artery. METHODS The contractile response of isolated arteries was recorded using a wire myograph. Fluo-3/AM was used to load vascular smooth muscle, and intracellular calcium was determined using confocal laser microscopy. The protein expression of Rho kinase was examined using Western blot. RESULTS NaHS induced concentration-dependent contractions of rat coronary artery, and the contraction reached approx. 65% of 60 mm KCl-induced contraction. The NaHS-induced contraction was elevated following the removal of endothelium or the use of the nitric oxide synthase inhibitor L-NAME. The cyclooxygenase inhibitor indomethacin reduced NaHS-induced contraction. The Rho kinase inhibitor Y-27632 significantly attenuated NaHS-induced vasoconstriction. Furthermore, NaHS elevated the protein expression of Rho kinase. NaHS-induced contraction was completely abolished in a Ca(2+)-free solution and suppressed by the Ca(2+) influx blocker nifedipine (100 nm). NaHS also significantly increased the change rate of Ca(2+) fluorescence intensity. However, treatment with a Cl(-)/HCO(3-) exchanger blocker, K(+) channel blockers, the mitogen-activated protein kinase inhibitor U-0126 or cyclic adenosine monophosphate did not affect contraction. Species-dependent differences in NaHS-induced vasoconstriction were observed because these effects were only modest in dog coronary artery and absent in rabbit coronary artery. CONCLUSIONS NaHS induces the contraction of rat coronary artery, which is dependent on the activation of Ca(2+) influx. Rho kinase likely participates in the vasoconstriction.
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346
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Kong Q, Wu G, Han L, Zhang Z, Du J, Sun W, Cao L. A transfection method of PS-asODNs targeting ANGPTL4 in multicellular structures of hepatocarcinoma cell line. Cancer Gene Ther 2015; 22:285-90. [PMID: 25908453 DOI: 10.1038/cgt.2015.22] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 03/17/2015] [Accepted: 03/19/2015] [Indexed: 12/11/2022]
Abstract
To find an efficient transfection method for metastatic cancer cells, we established a three-dimensional (3D) growth model for solid tumor cells to mimic the metastatic cancer cells in the vascular system and compared the efficiency of several transfection methods in vitro. We found that it was optimal to transfect two-dimensional cells in vitro and detach them for 3D growth 6 h later. The transfection efficiency of this method was high, and the results were reliable. This method can be used to deliver several types of small molecules into the 3D metastatic cell model. Using this method, we increased our understanding of why drugs that are effective in vitro cannot treat the disease in vivo. If this phenomenon occurs due to the resistance of the cells to the drug, other treatment agents for the disease must be identified. However, if this occurs because the agent cannot reach the cells inside the 3D aggregate, we can improve the delivery efficiency by using methods that target the agent to all cells. Briefly, the method introduced in this study will contribute to future research focusing on the 3D metastatic cell model as well as on drug development for various solid tumors.
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347
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Qi Q, Cao L, Li F, Wang H, Liu H, Hao H, Hao K. Salvianolic acid B as a substrate and weak catechol-O-methyltransferase inhibitor in rats. Xenobiotica 2015; 45:820-7. [DOI: 10.3109/00498254.2015.1017753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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348
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Kong MX, Zhang Q, Cao L, Zhao C, Ru GQ, Bi Q. Familial hypercholesterolaemia with tuberous and tendinous xanthomas: case report and mutation analysis. Clin Exp Dermatol 2015; 40:765-9. [PMID: 25807990 DOI: 10.1111/ced.12644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2014] [Indexed: 11/30/2022]
Abstract
Xanthomas are important clinical manifestations of disordered lipid metabolism, which are mostly found in patients with familial hypercholesterolaemia (FH), an inherited disorder that is predominantly caused by mutations in the low-density lipoprotein receptor gene (LDLR). Tuberous and tendinous xanthomas with wide distribution and large size are rare; however, they may indicate the severity of FH, and tend to be found in homozygous FH. In this study, we investigated the clinical and genetic aspects of a young patient with FH presenting with multiple large masses in various locations. The lesions on the elbows and buttocks were locally excised and subsequently confirmed by biopsy to be xanthomas. Genetic analysis further confirmed that the patient was compound heterozygous for two mutations in both alleles of the LDLR gene. This rare case of compound heterozygous FH presenting with multiple large and widely distributed xanthomas provides a better understanding of FH and xanthomas.
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349
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Sun X, Ou Z, Xie M, Kang R, Fan Y, Niu X, Wang H, Cao L, Tang D. HSPB1 as a novel regulator of ferroptotic cancer cell death. Oncogene 2015; 34:5617-25. [PMID: 25728673 PMCID: PMC4640181 DOI: 10.1038/onc.2015.32] [Citation(s) in RCA: 432] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/24/2015] [Accepted: 01/24/2015] [Indexed: 12/12/2022]
Abstract
Ferroptosis is an iron-dependent form of non-apoptotic cell death, but its molecular mechanism remains largely unknown. Here, we demonstrate that heat shock protein beta-1 (HSPB1) is a negative regulator of ferroptotic cancer cell death. Erastin, a specific ferroptosis-inducing compound, stimulates heat shock factor 1 (HSF1)-dependent HSPB1 expression in cancer cells. Knockdown of HSF1 and HSPB1 enhances erastin-induced ferroptosis, whereas heat shock pretreatment and overexpression of HSPB1 inhibits erastin-induced ferroptosis. Protein kinase C-mediated HSPB1 phosphorylation confers protection against ferroptosis by reducing iron-mediated production of lipid reactive oxygen species. Moreover, inhibition of the HSF1-HSPB1 pathway and HSPB1 phosphorylation increases the anticancer activity of erastin in human xenograft mouse tumor models. Our findings reveal an essential role for HSPB1 in iron metabolism with important effects on ferroptosis-mediated cancer therapy.
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350
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Li Y, Zhu W, Gong J, Zhang W, Gu L, Guo Z, Cao L, Shen B, Li N, Li J. Visceral fat area is associated with a high risk for early postoperative recurrence in Crohn's disease. Colorectal Dis 2015; 17:225-34. [PMID: 25307174 DOI: 10.1111/codi.12798] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 08/18/2014] [Indexed: 12/13/2022]
Abstract
AIM Mesenteric hypertrophy has been recognized as an indicator of the complicated course of Crohn's disease. The aim of this study was to investigate whether the visceral fat area (VFA) is associated with postoperative clinical and endoscopic recurrence. METHOD Computed tomography was used to measure the subcutaneous fat area and VFA, and the mesenteric fat index (MFI) was defined as the ratio of the VFA to the subcutaneous fat area. Associations between body mass index, subcutaneous fat area, VFA and MFI and postoperative clinical and endoscopic recurrence were investigated. RESULTS The factors associated with postoperative endoscopic recurrence at 6 months after surgery were a high VFA value (P = 0.019) and MFI values above the median (P = 0.008). VFA values were significantly correlated with endoscopic recurrence (r = 0.895, P = 0.040) and endoscopic lesions (r = 0.617, P < 0.0001). Additionally, MFI values correlated well with endoscopic recurrence (r = 0.918, P = 0.02) and endoscopic scores (r = 0.584, P < 0.0001). Multivariate analysis indicated that VFA values above the median (hazard ratio 2.63, 95% CI 1.03-6.74) were predictive of postoperative clinical recurrence in Crohn's disease. CONCLUSION A high VFA value is associated with postoperative recurrence of Crohn's disease and has clinical implications with respect to optimizing prophylaxis for each individual. However, further studies are needed to confirm the predictive role of this biomarker in a different data set.
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