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Li JW, Kuang Y, Chen L, Wang JF. LncRNA ZNF667-AS1 inhibits inflammatory response and promotes recovery of spinal cord injury via suppressing JAK-STAT pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:7614-7620. [PMID: 30536300 DOI: 10.26355/eurrev_201811_16375] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the role of lncRNA ZNF667-AS1 in the recovery of spinal cord injury (SCI), and to investigate its underlying mechanism. MATERIALS AND METHODS Mice were randomly assigned to the SCI group, the sham group and the lncRNA ZNF667-AS1 group, with 10 mice in each group. With Infinite Horizon device at a dose of 80 Kdyn, mice in the SCI group and the lncRNA ZNF667-AS1 group experienced SCI by an acute hit on the C5 spinous process. Before animal procedures, mice in the lncRNA ZNF667-AS1 group were additionally injected with overexpression lentivirus of lncRNA ZNF667-AS1. On the contrary, mice in the sham group only received laminectomy. After successful construction of the SCI model in mice, grip strength was accessed. LncRNA ZNF667-AS1 expression in spinal cord tissues before and after SCI was detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR), respectively. Meanwhile, the protein expression levels of relative genes in Janus Kinase-signal transducer and activator of transcription (JAK-STAT) pathway were detected by Western blot. RESULTS Grip strength of forelimb in the SCI group recovered significantly slower than that of the sham group. With the prolongation of SCI, the expression of lncRNA ZNF667-AS1 was gradually decreased. However, the expression levels of JAK2, STAT3 and iNOS were upregulated in a time-dependent manner. In addition, mice in the lncRNA ZNF667-AS1 group presented remarkable grip strength recovery of forelimb after SCI. CONCLUSIONS LncRNA ZNF667-AS expression is gradually downregulated after SCI. Meanwhile, it inhibits the inflammatory response and promotes SCI recovery via suppressing the JAK-STAT pathway.
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Zhao S, Xie B, Li Y, Zhao X, Kuang Y, Su J, He X, Wu X, Fan W, Huang K, Su J, Peng Y, Navarini AA, Huang W, Chen X. Smart identification of psoriasis by images using convolutional neural networks: a case study in China. J Eur Acad Dermatol Venereol 2019; 34:518-524. [PMID: 31541556 DOI: 10.1111/jdv.15965] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 08/08/2019] [Indexed: 01/16/2023]
Abstract
BACKGROUND Psoriasis is a chronic inflammatory skin disease, which holds a high incidence in China. However, professional dermatologists who can diagnose psoriasis early and correctly are insufficient in China, especially in the rural areas. A smart approach to identify psoriasis by pictures would be highly adaptable countrywide and could play a useful role in early diagnosis and regular treatment of psoriasis. OBJECTIVES Design and evaluation of a smart psoriasis identification system based on clinical images (without relying on a dermatoscope) that works effectively similar to a dermatologist. METHODS A set of deep learning models using convolutional neural networks (CNNs) was explored and compared in the system for automatic identification of psoriasis. The work was carried out on a standardized dermatological dataset with 8021 clinical images of 9 common disorders including psoriasis along with full electronic medical records of patients built over the last 9 years in China. A two-stage deep neural network was designed and developed to identify psoriasis. In the first stage, a multilabel classifier was trained to learn the visual patterns for each individual skin disease. In the second stage, the output of the first stage was utilized to distinguish psoriasis from other skin diseases. RESULTS The area under the curve (AUC) of the two-stage model reached 0.981 ± 0.015, which outperforms a single-stage model. And, the classifier showed superior performance (missed diagnosis rate: 0.03, misdiagnosis rate: 0.04) than 25 Chinese dermatologists (missed diagnosis rate: 0.19, misdiagnosis rate: 0.10) in the diagnosis of psoriasis on 100 clinical images. CONCLUSIONS Using clinical images to identify psoriasis is feasible and effective based on CNNs, which also builds a solid technical base for smart care of skin diseases especially psoriasis using mobile/tablet applications for teledermatology in China.
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Huang J, Kuang Y. In vitro maturation for expected high responders: balancing the effectiveness and safety. Hum Reprod 2019; 34:2080. [PMID: 31560747 DOI: 10.1093/humrep/dez144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/04/2019] [Accepted: 04/26/2019] [Indexed: 11/13/2022] Open
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Wang H, Kuang Y, Li J, Shen R, Sun R, Huang D, Sheng Z, Shi J, Zhang M, Huang F, Yang H, Fei J. Dnmt3a is required for the tumor stemness of B16 melanoma cells. Acta Biochim Biophys Sin (Shanghai) 2019; 51:945-952. [PMID: 31435645 DOI: 10.1093/abbs/gmz081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Indexed: 11/14/2022] Open
Abstract
The relationship of carcinogenesis and DNA methyltransferases has attracted extensive attention in tumor research. We reported previously that inhibition of de novo DNA methyltransferase 3a (Dnmt3a) in murine B16 melanoma cells significantly suppressed tumor growth and metastasis in xenografted mouse model. Here, we further demonstrated that knockdown of Dnmt3a enhanced the proliferation in anchor-independent conditions of B16 cells, but severely disrupted its multipotent differentiation capacity in vitro. Furthermore, transforming growth factor β1, a key trigger in stem cell differentiation and tumor cell epithelial-mesenchymal transition (EMT), mainly induced apoptosis, but not EMT in Dnmt3a-deficient B16 cells. These data suggested that Dnmt3a is required for maintaining the tumor stemness of B16 cells and it assists B16 cells to escape from death during cell differentiation. Thus it is hypothesized that not only extraordinary self-renewal ability, but also the capacity of multipotent differentiation is necessary for the melanoma tumorigenesis. Inhibition of multipotent differentiation of tumor cells may shed light on the tumor treatment.
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Liu D, Shen L, Tao Y, Kuang Y, Cai L, Wang D, He M, Tong X, Zhou S, Sun J, Shi C, Wang C, Wu Y. [Corrigendum] Alterations in gene expression during sexual differentiation in androgen receptor knockout mice induced by environmental endocrine disruptors. Int J Mol Med 2019; 44:1183-1183. [PMID: 31531678 PMCID: PMC6657971 DOI: 10.3892/ijmm.2019.4274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 11/13/2014] [Indexed: 11/06/2022] Open
Abstract
Following the publication of the above article, an interested reader drew to our attention a number of issues and concerns related to the descriptions of the genes and mouse models in the above paper. After having consulted with the authors, they have acknowledged that their paper did indeed contain a number of errors, and these are listed below in this Corrigendum. First, the authors realized that an incorrect figure was included as Fig. 1 in the paper. The correct (and entirely different) version of Fig. 1, together with its figure legend, is shown opposite. The following textual errors in the paper should also be noted: i) In the Abstract, lines 3‑4 in the left‑hand column (LHC): "androgen receptor (AR)‑/‑, AR+/‑ and AR+/+ male mice" should have been written as "androgen receptor (AR) conditional knockout mice"; line 5 in the LHC: "flox‑AR" should have been written as "ARflox/+"; line 6 in the LHC: "AR‑Cre" should have been written as "Amhr2‑Cre"; line 22 in the LHC: "AR+/‑" should have been written as "ARflox/Y"; line 1 in the right‑hand column (RHC): "heterozygous" should have been written as "ARflox/Y"; and line 2 in the RHC, "heterozygous" should have been written as "ARflox/Y Cre+". ii) In the Introduction, paragraph 3, lines 6‑7 in the LHC: "or female ARKO mice" should have been deleted; paragraph 4, line 5 in the LHC: "AR‑/‑", "AR+/‑" and "AR+/+" should have been deleted; paragraph 4, line 11 in the LHC: "AR‑/‑", and "AR+/‑" should have been written as "AR‑/Y", whereas "AR+/+" should have been written as "AR+/Y". iii) In the Materials and methods, paragraph 3, the last sentence in the RHC {"The identification of the plasmid containing leydig cells expressing Cre recombinant enzyme and the specificity of the genetically modified (gm) sequence [Amhr2‑Cre (7.1)] are shown in Fig. 1} should have been written as "The positive clones were identified by digestion and sequencing." iv) In the Results, the first subheading in the RHC ("...transgenic mouse model (Amhr2‑Cre)" should have been written as "...AR conditional knockout targeting vector"; paragraph 1, lines 1‑3 in the RHC: The sentence "The AR gene condition knockout plasmid was identified and confirmed by enzyme digestion with BamHI" should have been written as "The AR gene conditional knockout strategy is shown in Fig. 1. The gene targeting vector was identified and confirmed by enzyme digestion with BamHI"; paragraph 1, line 4 in the RHC: "2.7 kb" should have been written as "7.8 kb"; Table III, in the title and in the Table heading, "AR+/‑" should have been written as "AR+/Y", and "AR‑/‑" should have been written as "AR‑/Y"; in the subheading "Comparison between AR‑/‑ male mice and normal mice", "AR‑/‑" should have been written as "AR‑/Y", and "normal" should have been written as "AR+/Y"; and paragraph 4, lines 3‑5 in the LHC: "AR+/‑" should have been written as "AR+/Y", and "AR‑/‑" should have been written as "AR‑/Y". All the authors thank the interested reader for drawing these matters to their attention, and agree to the contents of this Corrigendum. The authors also stress that these errors did not significantly influence either the results or the conclusions of the paper. Furthermore, the authors apologize to the Editor of International Journal of Molecular Medicine and to the readership for any inconvenience caused. [the original article was published in International Journal of Molecular Medicine 35: 399‑404, 2015; DOI: 10.3892/ijmm.2014.2015].
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Kuang Y, Chen H, Chen Z, Wan L, Liu J, Xu Z, Chen X, Jiang B, Li C. Poly(amino acid)/ZnO/mesoporous silica nanoparticle based complex drug delivery system with a charge-reversal property for cancer therapy. Colloids Surf B Biointerfaces 2019; 181:461-469. [PMID: 31176118 DOI: 10.1016/j.colsurfb.2019.05.078] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 05/06/2019] [Accepted: 05/30/2019] [Indexed: 10/26/2022]
Abstract
Negative-to-positive charge-reversal strategy employed in anti-cancer drug delivery systems (DDSs) can improve the utilization of the drugs as well as reduce their side effects efficiently. In this article, a complex DDS named DOX@MSN-ZnO-PLL-PLL(DMA) was prepared. Doxorubicin hydrochloride (DOX) was loaded in mesoporous silica nanoparticles (MSNs), which were then covered by ZnO in situ. Poly-L-lysine (PLL) and 2,3-dimethylmaleic anhydride functionalized PLL (PLL(DMA)) were finally coated on the nanoparticles through a Layer-by-Layer (LbL) assembly process with PLL(DMA) outside to obtain the carriers. The negative charged PLL(DMA) avoided the unspecific uptake of the carriers by normal cells at pH 7.4. While the charge-reversal property could reverse the zeta-potential of the carriers to positive in weakly acidic tumor tissues at pH 6.5, which promoted the cytophagy of the carriers by cancer cells. ZnO which blocked the pores of MSNs could be dissolved intracellular due to the more acidic environment in endosome/lysosome, and resulting in drug release for cancer cell apoptosis. Zeta-potential measurements, the in vitro cellular uptake behaviors as well as cellular cytotoxicity of the carriers at different pH values were investigated to prove the charge-reversal property. The in vitro drug release studies and the cellular cytotoxicity studies were also investigated to prove the controlled DOX release behavior of the carriers. In summary, the complex DDS with charge-reversal property should be of consideration in cancer therapy.
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Fu A, Kuang Y, Fazeli M, Kumar N, Davis C. Current treatment landscape in triple negative breast cancer: A systematic literature review. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz100.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Li Y, Wu Z, Kuang Y, Chen M. 583 CPSI - An automatic solution to evaluate psoriasis severity. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Xu M, Kuang Y, Wang M, Han X, Yang Q. A microRNA expression signature as a predictor of survival for colon adenocarcinoma. Neoplasma 2019; 64:56-64. [PMID: 27881005 DOI: 10.4149/neo_2017_107] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Colon cancer is a major cause of cancer mortality worldwide and most colon cancers are adenocarcinoma. MicroRNA (miRNA) expression signature has been shown to be able to predict progression and prognosis of various cancers. The aim of our study was to explore a novel signature of microRNA expression for predicting survival of colon adenocarcinoma patients. By analyzing the miRNA expression profiles and clinical information of 329 colon adenocarcinoma patients derived from The Cancer Genome Atlas database. 129 miRNAs were identified to be expressed differentially between the cancer and adjacent tissues. Among them, 27 miRNAs were found to be associated with the corresponding clinical characteristics of the patients. Furthermore, 7 miRNAs (let-7a-2, mir-32, mir-181a-1, mir-197, mir-328, mir-505 and mir-652) were found to be significantly correlated with the patient survival. The risk established by the 7-miRNA signature we built was proved be an independent prognostic factor (Hazard ratio [HR] = 2.048; 95% CI = 1.144-3.664; p, 0.016). In summary, our study identified miRNAs correlated with progression and prognosis of colon adenocarcinoma and built a 7-microRNA expression signature for prediction of the survival of the patients with colon adenocarcinoma.
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Jiao Y, Ji L, Kuang Y, Yang Q. Cytotoxic effect of oxaloacetate on HepG2-human hepatic carcinoma cells via apoptosis and ROS accumulation. Neoplasma 2019; 64:192-198. [PMID: 28043145 DOI: 10.4149/neo_2017_204] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Oxaloacetate (OA) is one of the intermediates of the Krebs cycle. In addition to its role in energy production, OA may have other effects on the cell. We report here that OA could have a cell type dependent cytotoxic effect on the human hepatic carcinoma cell line HepG2 through induction of apoptosis and reactive oxygen species (ROS) accumulation. In our study, OA decreased the viability and colony formation of HepG2 cells and induced cell death. Caspase-3 activity was increased, the pro-apoptotic protein Bax was up-regulated, and the anti-apoptotic protein Bcl-2 was down-regulated in OA-treated HepG2 cells indicating that apoptosis through the intrinsic pathway was involved in the cell death. The ROS level in OA-treated HepG2 cells was increased. The anti-oxidant N-acetylcysteine (NAC) and glutathione (GSH) prevented the OA-induced decrease in cell but did not alter the enhanced apoptotic Bax/Bcl-2 mRNA ratio. These results suggest that the OA-induced apoptosis of HepG2 cell is not driven by oxidative damage and at least two distinct mechanisms, one mediated by ROS and one involving apoptosis, result in the cytotoxic effects of OA on HepG2 cells. These studies expand the biological functional repertoire of OA and provide a mechanism by which hepatocellular carcinoma may be targeted by OA.
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Yang Y, Li S, Zhang Q, Kuang Y, Qin A, Gao M, Li F, Tang BZ. An AIE-active theranostic probe for light-up detection of Aβ aggregates and protection of neuronal cells. J Mater Chem B 2019; 7:2434-2441. [DOI: 10.1039/c9tb00121b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An AIE-active probe of Cur-N-BF2 is developed for light-up detection of Aβ fibrils and plaques, inhibition of Aβ fibrillation, disassembly of preformed Aβ fibrils, and protection of neuronal cells.
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Lv Z, Liu J, Xiao J, Kuang Y. Integrated holographic waveguide display system with a common optical path for visible and infrared light. OPTICS EXPRESS 2018; 26:32802-32811. [PMID: 30645442 DOI: 10.1364/oe.26.032802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 10/02/2018] [Indexed: 06/09/2023]
Abstract
We propose an integrated holographic waveguide display system. An infrared volume holographic grating (IVHG) and a visible light grating are recorded on the same waveguide to achieve the purpose of a common light path for system miniaturization. Simulated and experimental results verify the feasibility of this method. The coupling efficiencies of the infrared module for eye tracking and the visible light module for augmented reality (AR) display are 40% and 45%. The holographic waveguide has a weight of only 4.3 grams. It is believed that this technique is a good way to achieve a light and thin eye tracking near-eye display.
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Li X, Yang P, Lu Y, Wang X, Jing Z, Yang L, Zhang H, Xia B, Ding L, Niu T, Wu S, Kuang Y. A Radiogenomics Framework to Improve Prediction of Clinical Outcomes in Patients with Esophageal Cancer Treated with Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hanna G, Supplee J, Kuang Y, Mahmood U, Lau C, Haddad R, Jänne P, Paweletz C. Plasma HPV cell-free DNA monitoring in advanced HPV-associated oropharyngeal cancer. Ann Oncol 2018; 29:1980-1986. [DOI: 10.1093/annonc/mdy251] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Kuang Y, Fang FM, Li YB, Lin YS, Yao YR, Wu MH, Wu HJ, Wang Y. [Concentrations and pollution assessment of mercury in farmland soil of Xinqiao Mining Area of Tongling, Anhui, China.]. YING YONG SHENG TAI XUE BAO = THE JOURNAL OF APPLIED ECOLOGY 2018; 29:2746-2752. [PMID: 30182616 DOI: 10.13287/j.1001-9332.201808.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To investigate the effects of mining activities on mercury (Hg) enrichment in farmland soil, soil samples were collected from four villages (Xinjian Village, Yehu Village, Xinhu Village and Hucheng Village) in the vicinity of Xinqiao Mining Area, Tongling. Hg concentration was measured by atomic fluorescence spectrophotometer. The geo-accumulation index was used to evaluate the Hg pollution level of the soils. The results showed that average concentration of total Hg in farmland soil was (0.137±0.078) mg·kg-1, which exceeded the background value of soil Hg in Tongling area. The average concentration of Hg in four villages followed the order of Xinjian Village (0.221 mg·kg-1)>Xinhu Village (0.118 mg·kg-1)>Yehu Village(0.115 mg·kg-1)>Hucheng Village (0.096 mg·kg-1). Moreover, the average Hg concentration of different forms in Xinjian Village followed the order of residue (0.036 mg·kg-1) > alkali soluble (0.031 mg·kg-1) > hydrogen peroxide soluble (0.022 mg·kg-1)> acid soluble (0.020 mg·kg-1)> water soluble (0.012 mg·kg-1). The distance from the mining area was the main factor affecting the distribution of soil Hg concentration in farmlands. The contaminated Xinqiao River, to some degree, had exa-cerbated soil Hg pollution. Soil organic matter affected the accumulation and transformation of total Hg and hydrogen peroxide Hg in the farmlands. The order of the geo-accumulation index followed as Xinjian Village(1.559) >Xinhu Village(0.654) >Yehu Village(0.616) >Hucheng Village(0.356). The pollution level of farmland soil in Xinjian Village belonged to middle level of Hg pollution,which deserved more attention.
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Chen H, Chen Z, Kuang Y, Li S, Zhang M, Liu J, Sun Z, Jiang B, Chen X, Li C. Stepwise-acid-active organic/inorganic hybrid drug delivery system for cancer therapy. Colloids Surf B Biointerfaces 2018; 167:407-414. [DOI: 10.1016/j.colsurfb.2018.04.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 12/21/2022]
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Wang J, Wang X, Chen X, Lu S, Kuang Y, Fei J, Wang Z. Gpr97/Adgrg3 ameliorates experimental autoimmune encephalomyelitis by regulating cytokine expression. Acta Biochim Biophys Sin (Shanghai) 2018; 50:666-675. [PMID: 29860267 DOI: 10.1093/abbs/gmy060] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 02/07/2023] Open
Abstract
Multiple sclerosis and its primary animal model, experimental autoimmune encephalomyelitis (EAE), are inflammatory diseases of the central nervous system (CNS) characterized by immune-mediated demyelination and neurodegeneration that may be mediated by inhibition of the nuclear factor-κB (NF-κB) signaling pathway. Gpr97, encoded by Adgrg3, has been reported to regulate the activity of NF-κB. In this study, using a previously established Adgrg3-knockout mouse model, we investigated the roles of Gpr97 in the development of autoimmune CNS disease in mice. We found a marked increase in the expression of Adgrg3 in spinal cords of mice with EAE. Adgrg3-deficient (Adgrg3-/-) mice with EAE exhibited increases in peak severity and the cumulative disease score compared with littermate controls, followed by a notable increase of leukocyte infiltration and more extensive demyelination. The percentages of Th1/Th17 cells in the CNS were significantly increased in Adgrg3-/- mice and accompanied by high levels of interleukin (IL)-6, interferon-γ, tumor necrosis factor-α, and IL-17. An in vitro culture assay verified that Gpr97 regulated proinflammatory cytokine production. Taken together, our results show that Gpr97 plays an important role in the development of EAE and may have a therapeutic potential for the treatment of CNS autoimmunity.
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Cui X, Ma B, Wang Y, Chen Y, Shen C, Kuang Y, Fei J, Lu L, Wang Z. Rdh13 deficiency weakens carbon tetrachloride-induced liver injury by regulating Spot14 and Cyp2e1 expression levels. Front Med 2018; 13:104-111. [PMID: 29656332 DOI: 10.1007/s11684-017-0568-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 06/02/2017] [Indexed: 12/17/2022]
Abstract
Mitochondrion-localized retinol dehydrogenase 13 (Rdh13) is a short-chain dehydrogenase/reductase involved in vitamin A metabolism in both humans and mice. We previously generated Rdh13 knockout mice and showed that Rdh13 deficiency causes severe acute retinal light damage. In this study, considering that Rdh13 is highly expressed in mouse liver, we further evaluated the potential effect of Rdh13 on liver injury induced by carbon tetrachloride (CCl4). Although Rdh13 deficiency showed no significant effect on liver histology and physiological functions under regular culture, the Rdh13-/- mice displayed an attenuated response to CCl4-induced liver injury. Their livers also exhibited less histological changes and contained lower levels of liver-related metabolism enzymes compared with the livers of wild-type (WT) mice. Furthermore, the Rdh13-/- mice had Rdh13 deficiency and thus their liver cells were protected from apoptosis, and the quantity of their proliferative cells became lower than that in WTafter CCl4 exposure. The ablation of Rdh13 gene decreased the expression levels of thyroid hormone-inducible nuclear protein 14 (Spot14) and cytochrome P450 (Cyp2e1) in the liver, especially after CCl4 treatment for 48 h. These data suggested that the alleviated liver damage induced by CCl4 in Rdh13-/- mice was caused by Cyp2e1 enzymes, which promoted reductive CCl4 metabolism by altering the status of thyroxine metabolism. This result further implicated Rdh13 as a potential drug target in preventing chemically induced liver injury.
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Yang Z, Kuang Y, Su L, Zhang S, Lin J. Time-lapse and ngs evaluation of morphokinetics, ploidy and clinical outcome of human embryos cultured in continuous single culture medium versus sequential culture medium: a randomized pilot study. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.02.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yao X, Chen Y, Shu M, Zhang K, Gao Z, Kuang Y, Fang Y, Nishinari K, Phillips GO, Jiang F. Stability and digestibility of one- or bi-layered medium-chain triglyceride emulsions with gum Arabic and whey protein isolates by pancreatic lipase in vitro. Food Funct 2018; 9:1017-1027. [PMID: 29349463 DOI: 10.1039/c7fo01719g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interfacial engineering approaches have been used to design functional foods so as to control lipase-induced digestion of emulsified lipids and release of bioactive lipophilic components in the gastrointestinal tract. In this study, emulsion droplets with the interface stabilized with gum Arabic (GA) and whey protein isolate (WPI) were prepared by mixing or sequential adsorption. WPI/GA intramolecular soluble complexes (ISCs) have superior emulsifying properties in stabilizing oil-in-water emulsions. The impact of the interfaces for WPI/GA ISC-layered (one-layered) and double-layered emulsions formed by sequential deposition of WPI or GA on the lipolysis of emulsions was investigated using an in vitro simulated gastrointestinal model. Transglutaminase and dithiothreitol were introduced to crosslink the interfacial proteins and improve the interfacial stability. The ISC-layered emulsion was less stable to aggregation than the double-layered ones in simulated gastric fluid due to dissociation of ISCs caused by the electrostatic screening of ions and proteolysis of interfacial proteins driven by pepsin. The ISC-layered emulsion conferred a significant slower rate and extent of lipid digestion compared to the double-layered emulsions post gastric proteolysis (P < 0.05). It is presumed for the ISC-layered emulsion that the destabilization to aggregation and coalescence within the simulated gastrointestinal fluids and the steric hindrance of the robust and thick interfacial layer might contribute to delaying free fatty acids release. It suggests that both the initial interfacial properties and the stability of the emulsified lipid droplets within the simulated gastrointestinal fluids play an important role in determining the rate and extent of lipid digestion. It is predicted that direct destabilization of emulsified lipids using interfacial engineering approaches has the potential of modifying lipid digestibility or bioactive release at specific sites within the gastrointestinal tract.
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Chen X, Wang X, Tang L, Wang J, Shen C, Liu J, Lu S, Zhang H, Kuang Y, Fei J, Wang Z. Nhe5 deficiency enhances learning and memory via upregulating Bdnf/TrkB signaling in mice. Am J Med Genet B Neuropsychiatr Genet 2017; 174:828-838. [PMID: 28981195 DOI: 10.1002/ajmg.b.32600] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 07/10/2017] [Accepted: 09/05/2017] [Indexed: 11/11/2022]
Abstract
Nhe5, a Na+ /H+ exchanger, is predominantly expressed in brain tissue and is proposed to act as a negative regulator of dendritic spine growth. Up to now, its physiological function in vivo remains unclear. Here we show that Nhe5-deficient mice exhibit markedly enhanced learning and memory in Morris water maze, novel object recognition, and passive avoidance task. Meanwhile, the pre- and post-synaptic components, synaptophysin (Syn) and post-synaptic density 95 (PSD95) expression levels were found increased in hippocampal regions lacking of Nhe5, suggesting a possible alterations in neuronal synaptic structure and function in Nhe5-/- mice. Further study reveals that Nhe5 deficiency leads to higher Bdnf expression levels, followed by increased phosphorylated TrkB and PLCγ levels, indicating that Bdnf/TrkB signaling is activated due to Nhe5 deficiency. Moreover, the corresponding brain regions of Nhe5-/- mice display elevated ERK/CaMKII/CREB phosphorylation levels. Taken together, these findings uncover a novel physiological function of Nhe5 in regulating learning and memory, further implying Nhe5 as a potential therapeutic target for improving cognition.
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72
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Wang K, Wu K, Xiao M, Kuang Y, Corke H, Ni X, Jiang F. Structural characterization and properties of konjac glucomannan and zein blend films. Int J Biol Macromol 2017; 105:1096-1104. [DOI: 10.1016/j.ijbiomac.2017.07.127] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 07/03/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
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73
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Wang H, Kuang Y. A Novel Linac Gantry-Based Onboard Imager for Simultaneous CBCT, Spectral CT, and SPECT Online Imaging. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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74
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Du T, Kuang Y. Factors affecting sex ratio of offspring from frozen-thawed embryo transfer cycles of in vitro fertilization/intracytoplasmic sperm injection. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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75
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Yang Z, Liu J, Zhang S, Kuang Y, Lu S, Lin J. The combined use of time-lapse and next-generation sequencing improves clinical outcomes: results from a randomized pilot study. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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