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Wang J, Sun S, Chen D, Gao C, Sang L, Xie X. Pathogenic and genomic characterization of rabbit-sourced Pasteurella multocida serogroup F isolates recovered from dead rabbits with respiratory disease. Microbiol Spectr 2024; 12:e0365423. [PMID: 38385714 DOI: 10.1128/spectrum.03654-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/26/2024] [Indexed: 02/23/2024] Open
Abstract
Pasteurella multocida serogroup F can infect a number of animals. However, the pathogenicity and genomic features of this serogroup are still largely unknown. In the present study, the pathogenicity and genomic sequences of 19 rabbit-sourced P. multocida serogroup F isolates were determined. The 19 isolates were highly pathogenic for rabbits causing severe pathologic lesions and high mortality in inoculated rabbits. Nevertheless, the pathologic lesions in rabbits caused by the 19 isolates were distinct from those caused by the previously reported high-virulent serogroup F strains J-4103 (rabbit), P-4218 (turkey), and C21724H3km7 (chicken). Moreover, the 19 isolates were avirulent to white feather broilers. The genomes of the 19 isolates were determined to understand the pathogenicity of these isolates. The finding of a number of functional genes in the 19 isolates by comparison with the low-virulent rabbit-sourced serogroup F strain s4 might contribute to the high virulence of these isolates. Notably, polymorphisms were determined in the lipopolysaccharide outer core biosynthetic genes natC and gatF among the serogroup F strains of different hosts. However, the sequences of natC and gatF from rabbit-sourced strains (except for SD11) were identical, which might be responsible for the host specific of the 19 isolates. The observations and findings in this study would be helpful for the understanding of the pathogenicity variation and host predilection of P. multocida. IMPORTANCE The 19 rabbit-sourced Pasteurella multocida serogroup F isolates showing high virulence to rabbits were avirulent to the broilers. Notably, polymorphisms were determined in the lipopolysaccharide outer core biosynthetic genes natC and gatF among all serogroup F strains of different hosts. However, the sequences of natC and gatF from rabbit-sourced strains (except for SD11) were identical, which might be responsible for the host specific of the 19 isolates.
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Affiliation(s)
- Jinxiang Wang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
| | - Shikun Sun
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
| | - Dongjin Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
| | - Chenfang Gao
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
| | - Lei Sang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
| | - Xiping Xie
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
- Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, Fujian, China
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Gao Y, Dong R, Yan J, Chen H, Sang L, Yao X, Fan D, Wang X, Zuo X, Zhang X, Yang S, Wu Z, Sun J. Mitochondrial deoxyguanosine kinase is required for female fertility in mice. Acta Biochim Biophys Sin (Shanghai) 2024; 56:427-439. [PMID: 38327186 PMCID: PMC10984852 DOI: 10.3724/abbs.2024003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/16/2023] [Indexed: 02/09/2024] Open
Abstract
Mitochondrial homeostasis plays a pivotal role in oocyte maturation and embryonic development. Deoxyguanosine kinase (DGUOK) is a nucleoside kinase that salvages purine nucleosides in mitochondria and is critical for mitochondrial DNA replication and homeostasis in non-proliferating cells. Dguok loss-of-function mutations and deletions lead to hepatocerebral mitochondrial DNA deletion syndrome. However, its potential role in reproduction remains largely unknown. In this study, we find that Dguok knockout results in female infertility. Mechanistically, DGUOK deficiency hinders ovarian development and oocyte maturation. Moreover, DGUOK deficiency in oocytes causes a significant reduction in mitochondrial DNA copy number and abnormal mitochondrial dynamics and impairs germinal vesicle breakdown. Only few DGUOK-deficient oocytes can extrude their first polar body during in vitro maturation, and these oocytes exhibit irregular chromosome arrangements and different spindle lengths. In addition, DGUOK deficiency elevates reactive oxygen species levels and accelerates oocyte apoptosis. Our findings reveal novel physiological roles for the mitochondrial nucleoside salvage pathway in oocyte maturation and implicate DGUOK as a potential marker for the diagnosis of female infertility.
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Affiliation(s)
- Yake Gao
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Rui Dong
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Jiacong Yan
- Department of Reproductive Medicinethe First People’s Hospital of Yunnan ProvinceNHC Key Laboratory of Preconception Health Birth in Western ChinaKunming650100China
| | - Huicheng Chen
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Lei Sang
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Xinyi Yao
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Die Fan
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Xin Wang
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Xiaoyuan Zuo
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Xu Zhang
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
| | - Shengyu Yang
- Department of Cellular and Molecular PhysiologyThe Penn State University College of MedicineHersheyPA17033USA
| | - Ze Wu
- Department of Reproductive Medicinethe First People’s Hospital of Yunnan ProvinceNHC Key Laboratory of Preconception Health Birth in Western ChinaKunming650100China
| | - Jianwei Sun
- Center for Life SciencesYunnan Key Laboratory of Cell Metabolism and DiseasesState Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanSchool of Life SciencesYunnan UniversityKunming650091China
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Peng L, Dan J, Huang W, Sang L, Tian H, Li Z, Li W, Liu J, Luo Y. The dual effects of Congea chinensis Moldenke on inhibiting tumor cell proliferation and delaying aging by activating TERT transcriptional activity. J Ethnopharmacol 2024; 319:117103. [PMID: 37673201 DOI: 10.1016/j.jep.2023.117103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Natural medicinal plants, also named herbs, have attracted considerable research attention for their potential pharmacological activities, such as antitumor and longevity-promoting activities. Our previous review proposed that maintaining the homeostatic balance between aging and cancer may benefit organisms to enable tumor-free longevity. Congea chinensis Moldenke (CCM) is a plant species that grows on the border of Yunnan Province of China. Its medicinal value has been few reports until now. Thus, screening and extraction the ingredients from CCM that are both active tumor suppressors and TERT activators is a therapeutic strategy for improving tumor-free longevity. AIM OF THE STUDY To extract and evaluate the cytotoxic antitumor and TERT transcription-promoting activities of the plant CCM. MATERIALS AND METHODS The ingredients extracted from CCM were tested for transcriptional activation of p53 using pGL4-p53-GFP cells and for TERT expression using a real-time PCR assay. In vitro antitumor activity was detected by sulforhodamine B (SRB) assay and Annexin V/PI staining assay. The cell-permeable probe H2DCFDA was used to detect intracellular reactive oxygen species (ROS). Western blot was performed to verify predicated proteins regulated by the ingredients. RNA-sequence analysis was applied to predicate the underlying mechanism of CCM. RESULTS Both CCM and MPRC2-8, two novel extracts of Congea chinensis Moldenke, activated the expression of p53 and TERT and were selectively cytotoxic toward tumor cells. In addition, the cytotoxic mechanism of MPRC2-8 was identified as ROS generation-induced apoptosis. Interestingly, MPRC2-8 showed opposite regulatory effects on the SIRT1-p53 axis in A549 and HT-29 cells, which have different p53 statuses. RNA-seq analysis showed that CCM and MPRC2-8 induced the p53, apoptosis and ROS signaling pathways, consistent with the results of cellular experiments in vitro. CONCLUSION Our study reveals that CCM and MPRC2-8 have two complementary activities, antitumor activity and TERT-activating activity, with potential antitumor and longevity-improving effects.
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Affiliation(s)
- Lei Peng
- Laboratory of Molecular Genetics of Aging and Tumor, Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Juhua Dan
- Laboratory of Molecular Genetics of Aging and Tumor, Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenhui Huang
- Laboratory of Molecular Genetics of Aging and Tumor, Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Lei Sang
- Laboratory of Molecular Genetics of Aging and Tumor, Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Hao Tian
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
| | - Zhiming Li
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
| | - Wanyi Li
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
| | - Jing Liu
- Laboratory of Molecular Genetics of Aging and Tumor, Medical School, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Ying Luo
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Development on Common Chronic Diseases, School of Basic Medicine, Guizhou Medical University, Guiyang, China.
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Sang L, Sun S, Wang J, Gao C, Chen D, Xie X. Dual effects of gonadotropin-inhibitory hormone on testicular development in prepubertal Minxinan Black rabbits ( Oryctolagus cuniculus). Front Vet Sci 2024; 11:1320452. [PMID: 38328257 PMCID: PMC10847550 DOI: 10.3389/fvets.2024.1320452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/11/2024] [Indexed: 02/09/2024] Open
Abstract
Gonadotropin-inhibitory hormone (GnIH) is a neurohormone that not only suppresses reproduction at the brain level but also regulates steroidogenesis and gametogenesis at the gonad level. However, its function in gonadal physiology has received little attention in rabbits. The main objective of this study was to evaluate the effects of GnIH on testicular development and function in prepubertal Minxinan Black rabbits (Oryctolagus cuniculus). In the present study, we investigated the serum reproductive hormone concentration, testicular parameters, morphology of seminiferous tubules, apoptosis of testicular cells, and expression of reproductive-related genes in male prepubertal Minxinan Black rabbits intraperitoneally administered with 0, 0.5, 5, or 50 μg quail GnIH-related peptides (qGnIH) for 10 days. Compared with the vehicle, administration with 5 μg of qGnIH downregulated the serum testosterone concentration and mRNA levels of spermatogenic genes (PCNA, FSHR, INHβA, HSF1, and AR) and upregulated the apoptosis rate of testicular cells; administration with 50 μg of qGnIH decreased the serum testosterone concentration and hypothalamic GnIH gene mRNA level and increased the serum LH concentration, pituitary LHβ gene mRNA level, testicular weight, gonadosomatic index (GSI), and spermatogenic cell layer thickness. It is concluded that GnIH could exert dual actions on testicular development depending on the male prepubertal rabbits receiving different intraperitoneal doses.
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Affiliation(s)
| | | | | | | | | | - Xiping Xie
- Fujian Key Laboratory of Animal Genetics and Breeding, Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, China
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Sang L, Liu Z, Huang C, Xu J, Wang H. Multiparametric MRI-based radiomics nomogram for predicting the hormone receptor status of HER2-positive breast cancer. Clin Radiol 2024; 79:60-66. [PMID: 37838543 DOI: 10.1016/j.crad.2023.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/28/2023] [Accepted: 09/12/2023] [Indexed: 10/16/2023]
Abstract
AIM To investigate the value of multiparametric magnetic resonance imaging (MRI)-based radiomics nomograms for predicting the hormone receptor (HR) status of HER2-positive breast cancer. MATERIALS AND METHODS Patients with HER2-positive invasive breast cancer were divided randomly into training (68 patients) and validation (30 patients) sets. All were classified as either HR-positive (HR+) or negative (HR-) at histopathology. Two radiologists outlined the three-dimensional (3D) volumetric regions of interest (VOI) on the MRI images. Features (n=1,096) were extracted from the T2-weighted imaging (WI), apparent diffusion coefficient (ADC), and dynamic contrast-enhanced (DCE) images separately. Dimensionality was reduced using feature screening. Binary radiomics prediction models were established using a logistic regression classifier and were validated in the validation set. To construct a nomogram, independent predictors were identified using multivariate logistic regression analysis. The predictive efficacy of the model was assessed using the area under the receiver operating characteristic curve (AUC). RESULTS Ten radiomics features were obtained after feature dimensionality reduction based on the merged T2WI, ADC, and DCE images. The diagnostic efficacy of the radiomics signature using the three sequences was better than that of any single sequence (training set AUC: 0.797; validation set AUC: 0.75). Using multivariate logistic regression analysis, the independent predictors for identifying HR status were combined radiomics signature and peritumoural oedema. Nomograms constructed by combining the radiomics signature and peritumoural oedema showed good discrimination in both the training and validation sets (AUC: 0.815 and 0. 805, respectively). CONCLUSION A multiparametric MRI-based nomogram incorporating the radiomics signature and peritumoural oedema can assess the HR status of HER2-positive breast cancer. The resulting model can improve diagnostic accuracy, improving patient outcomes.
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Affiliation(s)
- L Sang
- Department of Radiology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan 250012, Shandong, China
| | - Z Liu
- Department of Radiology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan 250012, Shandong, China
| | - C Huang
- Department of Research Collaboration, R&D Center, Beijing Deepwise & League of, PHD Technology Co. Ltd, Beijing, China
| | - J Xu
- Department of Research Collaboration, R&D Center, Beijing Deepwise & League of, PHD Technology Co. Ltd, Beijing, China
| | - H Wang
- Department of Radiology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, No. 324, Jingwu Road, Huaiyin District, Jinan 250012, Shandong, China.
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Li J, Ahmad M, Sang L, Zhan Y, Wang Y, Yan Y, Liu Y, Mi W, Lu M, Dai Y, Zhang R, Dong MQ, Yang YG, Wang X, Sun J, Li J. O-GlcNAcylation promotes the cytosolic localization of the m 6A reader YTHDF1 and colorectal cancer tumorigenesis. J Biol Chem 2023; 299:104738. [PMID: 37086786 DOI: 10.1016/j.jbc.2023.104738] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 04/24/2023] Open
Abstract
O-linked N-acetylglucosamine (O-GlcNAc) is an emerging post-translation modification that couples metabolism with cellular signal transduction by crosstalk with phosphorylation and ubiquitination to orchestrate various biological processes. The mechanisms underlying the involvement of O-GlcNAc modifications in N6-methyladenosine (m6A) regulation are not fully characterized. Herein we show that O-GlcNAc modifies the m6A mRNA reader YTHDF1 and fine-tunes its nuclear translocation by the exportin protein Crm1. First we present evidence that YTHDF1 interacts with the sole O-GlcNAc transferase (OGT). Second, we verified Ser196/Ser197/Ser198 as the YTHDF1 O-GlcNAcylation sites, as described in numerous chemoproteomic studies. Then we constructed the O-GlcNAc-deficient YTHDF1-S196A/S197F/S198A (AFA) mutant, which significantly attenuated O-GlcNAc signals. Moreover, we revealed that YTHDF1 is a nucleocytoplasmic protein, whose nuclear export is mediated by Crm1. Furthermore, O-GlcNAcylation increases the cytosolic portion of YTHDF1 by enhancing binding with Crm1, thus upregulating downstream target (e.g. c-Myc) expression. Molecular dynamics simulations suggest that O-GlcNAcylation at S197 promotes the binding between the nuclear export signal motif and Crm1 through increasing hydrogen bonding. Mouse xenograft assays further demonstrate that YTHDF1-AFA mutants decreased the colon cancer mass and size via decreasing c-Myc expression. In sum, we found that YTHDF1 is a nucleocytoplasmic protein, whose cytosolic localization is dependent on O-GlcNAc modification. We propose that the OGT-YTHDF1-c-Myc axis underlies colorectal cancer tumorigenesis.
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Affiliation(s)
- Jie Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Muhammad Ahmad
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Lei Sang
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Yahui Zhan
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Yibo Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yonghong Yan
- National Institute of Biological Sciences, Beijing 102206, China
| | - Yue Liu
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Weixiao Mi
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Mei Lu
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Yu Dai
- Department of Stomatology, Shenzhen Peoples Hospital, the Second Clinical Medical College, Jinan University; the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong 518020, China
| | - Rou Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Meng-Qiu Dong
- National Institute of Biological Sciences, Beijing 102206, China
| | - Yun-Gui Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaohui Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China; Beijing National Laboratory for Molecular Sciences, Beijing 100190, China.
| | - Jianwei Sun
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China.
| | - Jing Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China.
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Sang L, Dai Y, Hu J, Zhu Y, Xu L, Zhang W, Cheng J. Comprehensive analyses of intraoral spindle cell carcinoma: A rare disease entity revisited. Oral Dis 2023; 29:686-695. [PMID: 34592043 DOI: 10.1111/odi.14037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/13/2021] [Accepted: 09/21/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The present study was aimed to comprehensively characterize the epidemiological, clinicopathological characteristics, treatments, and prognosis of intraoral spindle cell carcinoma (SpCC). MATERIALS AND METHODS Patients diagnosed with intraoral SpCC at our institution in the past 15 years (2005-2019) were screened from inpatient disease registry. All relevant data concerning patients with intraoral SpCC were retrieved. Previous reports about intraoral SpCC with adequate clinicopathological data in both English literature and Chinese literature were collected. Eligible cases were further reviewed and pooled for statistical analyses. RESULTS Six patients (5 females and 1 male; average age: 59 years) with intraoral SpCC were histopathologically diagnosed and surgically treated at our institution. The literature review identified another 63 published cases from 34 articles. Most cases were presented in the fifth to seventh decade of life with a male preponderance. Gingiva (23/69, 33.3%) was the most common site followed by the tongue (19/69, 27.5%) and buccal mucosa (8/69, 11.6%). Complete surgical ablation remains the primary treatment option. Tumor size, pathological grades, cervical node metastasis, and distant metastasis were significantly associated with reduced survival. CONCLUSIONS Intraoral SpCC is an uncommon and aggressive malignancy with dismal prognosis. Much attention and effort are needed to characterize this rare entity and improve its clinical outcomes.
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Affiliation(s)
- Lei Sang
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Jiangsu, China
| | - Yibin Dai
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing, China
| | - Jiaan Hu
- Department of Stomatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, China
| | - Yaqing Zhu
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Jiangsu, China
| | - Linhong Xu
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Jiangsu, China
| | - Wei Zhang
- Department of Oral Pathology, Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Cheng
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Jiangsu, China.,Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing, China
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Chen D, Sun S, Chen Y, Wang J, Sang L, Gao C, Xie X. Effects of feeding methods on growth and slaughter performance, blood biochemical indices, and intestinal morphology in Minxinan black rabbits (Oryctolagus cuniculus). Trop Anim Health Prod 2023; 55:51. [PMID: 36708435 PMCID: PMC9884254 DOI: 10.1007/s11250-023-03467-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 01/17/2023] [Indexed: 01/29/2023]
Abstract
Feed restriction after weaning is a common strategy used in commercial rabbit farms to improve feed efficiency, promote health, and reduce mortality. However, few studies have investigated the feed restrictions of Minxinan black rabbits (Oryctolagus cuniculus). Thus, the effects of feed restriction on growth and slaughter performance, intestinal morphology, and blood biochemical indices of Minxinan black rabbits were evaluated in this study. Rabbits in group A (control group) had ad libitum intake, while those in feed restriction groups (groups B, C, and D) were restricted to 80% of the average daily feed intake (ADFI) of group A the day before. The rabbits in group B were fed once per day at 8:00 am. Rabbits in groups C and D were fed twice per day at 8:00 am (50%) and 4:00 pm (50%) and 8:00 am (30%) and 4:00 pm (70%), respectively. The experimental period lasted for 8 weeks. Compared to that in group A, the diarrhea rate of group C was significantly decreased (P < 0.05), and the ADFI, feed conversion ratio, abdominal fat weight, abdominal fat rate, total protein, albumin, globulin, alanine aminotransferase (ALT), low-density lipoprotein, and intestinal crypt depth of all feed restriction groups were significantly reduced (P < 0.01). Feed conversion ratio in group D was significantly better than that in groups B and C (P < 0.05). The efficiency index (EI) of groups C and D was higher than that of groups A and B (P < 0.01). Triglyceride levels in groups C and D were significantly lower than those in group A. The villus length to crypt depth of the duodenum and jejunum in group D was significantly higher than that in group A (P < 0.01). In conclusion, the following parameters can be improved by feed restriction: feed conversion ratio, diarrhea rate, abdominal fat rate, serum ALT, lipid indices and intestinal health of Minxinan black rabbits, and the EI of the farm. Feeding twice per day, 30% at 8:00 am and 70% at 4:00 pm, had the best comprehensive effects.
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Affiliation(s)
- DongJin Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - ShiKun Sun
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - YanFeng Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - JinXiang Wang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - Lei Sang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - ChengFang Gao
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China
| | - XiPing Xie
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China. .,Fujian Key Laboratory of Animal Genetics and Breeding, Fuzhou, 350013, China.
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Wang J, Sun S, Chen Y, Chen D, Sang L, Xie X. Pathogenic and genomic characterisation of a rabbit sourced Pasteurella multocida serogroup F isolate s4. BMC Vet Res 2022; 18:288. [PMID: 35869529 PMCID: PMC9308332 DOI: 10.1186/s12917-022-03381-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 07/12/2022] [Indexed: 12/02/2022] Open
Abstract
Background Pasteurella multocida is one of the most significant pathogens for a number of animals. In rabbits, the infection is generally associated with the P. multocida serogroups A and D, and the knowledge about the serogroup F is limited. In the present study, a P. multocida serogroup F isolate designated s4 was recovered from the lungs of rabbits died of respiratory disease in Fujian, in the southeast of China. The pathogenicity and genomic features of the s4 were then determined. Results The serotype and sequence type of s4 were F:L3 and ST12, respectively. The s4 was pathogenic for rabbits, but it was a low virulent strain comparing to the previously reported highly pathogenic P. multocida serogroup F strains J-4103, C21724H3km7, P-4218 and HN07. The whole genome of the s4 was then sequenced to understand the genomic basis for pathogenicity. Particularly, a large-sized fragment of approximate 275 kb in length was truncated from the chromosome to form a plasmid. Moreover, the in-frame deletion of natC and N-terminal redundance of gatF would resulted in the production of a mutant L3 outer core structure that was distinct from those of the other P. multocida strains belonging to the lipopolysaccharide genotype L3. We deduced that these features detected in the genome of s4 might impair the pathogenicity of the bacterium. Conclusions This study evaluated the pathogenicity and determined the genomic features of the rabbit sourced P. multocida serogroup F isolate s4, the observations and findings would helpful for the understanding of the pathogenicity variability and genetic diversity of P. multocida. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03381-7.
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Sang L, Wang X, Bai W, Shen J, Zeng Y, Sun J. The role of hepatocyte nuclear factor 4α (HNF4α) in tumorigenesis. Front Oncol 2022; 12:1011230. [PMID: 36249028 PMCID: PMC9554155 DOI: 10.3389/fonc.2022.1011230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Hepatocyte Nuclear Factor 4 Alpha (HNF4α) is a master transcription factor mainly expressed in the liver, kidney, intestine and endocrine pancreas. It regulates multiple target genes involved in embryonic development and metabolism. HNF4α-related diseases include non-alcoholic fatty liver disease (NAFLD), obesity, hypertension, hyperlipidemia, metabolic syndrome and diabetes mellitus. Recently, HNF4α has been emerging as a key player in a variety of cancers. In this review, we summarized the role and mechanism of HNF4α in different types of cancers, especially in liver and colorectal cancer, aiming to provide additional guidance for intervention of these diseases.
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Affiliation(s)
- Lei Sang
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, China
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Xingshun Wang
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, China
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Weiyu Bai
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Junling Shen
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Yong Zeng
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, China
- The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jianwei Sun
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
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11
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Sang L, Dong R, Liu R, Hao Q, Bai W, Sun J. Caenorhabditis elegans NHR-14/HNF4α regulates DNA damage-induced apoptosis through cooperating with cep-1/p53. Cell Commun Signal 2022; 20:135. [PMID: 36050770 PMCID: PMC9438139 DOI: 10.1186/s12964-022-00920-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 06/16/2022] [Indexed: 11/10/2022] Open
Abstract
Background Nuclear hormone receptors are involved in transcriptional regulation and many important cellular processes including development and metabolism. However, its role in DNA damage-induced apoptosis remains elusive. Methods Synchronized young adult animals were irradiated with different doses of gamma-Ray, and then put back to culture at 20 °C. Germline cell apoptosis was scored at different time point. Results Deletion of nhr-14 led to decreased DNA damage-induced germline apoptosis, but not the physiological programmed cell death. We also demonstrate that nhr-14 functions downstream of the DNA damage checkpoint pathway. Moreover, we show that nhr-14 regulates egl-1 and ced-13 transcription upon DNA damage. Mechanistically, NHR-14 forms a complex with CEP-1/p53 and binds directly to the egl-1 promoter to promote egl-1 transcription.. Conclusions Our results indicate that NHR-14/HNF4α cooperates with CEP-1/p53 to regulate DNA damage-induced apoptosis. Graphic abstract ![]()
Video abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-022-00920-5.
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Affiliation(s)
- Lei Sang
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Rui Dong
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Rui Liu
- The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qinggang Hao
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Weiyu Bai
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Jianwei Sun
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China.
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12
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Sang L, Li YM. [Mechanical ventilation strategy for acute respiratory distress syndrome patients supported by veno-venous extracorporeal membrane oxygenation]. Zhonghua Yi Xue Za Zhi 2022; 102:1895-1898. [PMID: 35768387 DOI: 10.3760/cma.j.cn112137-20220207-00241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The mortality of acute respiratory distress syndrome (ARDS) patients is very high, veno-venous extracorporeal membrane oxygenation (VV-ECMO) has been proved to improve the prognosis of these patients, but the maximization of this benefit relies on the appropriate mechanical ventilation strategy; with the new research evidence arise, scholars have reached a certain consensus on how to implement mechanical ventilation in ARDS patients supported by VV-ECMO, but there are still many controversies. Based on the evidences of current researches and clinical experiences, this article analyzes the hot issues of mechanical ventilation strategy for these patients, including the implementation of early 'overprotective' ventilation strategy, whether spontaneous breathing allowed, prone ventilation and ventilator weaning.
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Affiliation(s)
- L Sang
- Department of Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Y M Li
- Department of Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
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13
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Shao DS, Sang L, Kong YR, Deng ZR, Luo HB, Tian ZF, Ren XM. Tunable thermotropic phase transition triggering large dielectric response and superionic conduction in lead halide perovskites. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01650h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskites show tunable structural phase transition, accompanied by large dielectric response and superionic conduction.
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Affiliation(s)
- Dong-Sheng Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Lei Sang
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ya-Ru Kong
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Rong Deng
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hong-Bin Luo
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Fang Tian
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, P. R. China
| | - Xiao-Ming Ren
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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Amaral TF, Grázia JGV, Gonella-Diaza AM, Martinhão LAG, Heredia D, Melo GD, Pohler KG, Estrada-Cortés E, Dikmen S, Sosa F, Jensen LM, Sang L, Siqueira LGB, Viana JHM, Hansen PJ. 84 Actions of DKK1 on the bovine embryo during the morula-to-blastocyst stage of development on pregnancy outcomes and placental hormone secretion after embryo transfer. Reprod Fertil Dev 2021; 34:279. [PMID: 35231213 DOI: 10.1071/rdv34n2ab84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- T F Amaral
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - J G V Grázia
- FIVX Apoyar Biotech LTDA, Juiz de Fora, Minas Gerais, Brazil
| | - A M Gonella-Diaza
- Department of Animal Sciences, University of Florida, North Florida Research and Education Center, Marianna, FL, USA
| | - L A G Martinhão
- Biological Science Institute, University of Brasília, Brasília, DF, Brazil
| | - D Heredia
- Department of Animal Sciences, University of Florida, North Florida Research and Education Center, Marianna, FL, USA
| | - G D Melo
- Department of Animal Sciences, Texas A&M University, College Station, TX, USA
| | - K G Pohler
- Department of Animal Sciences, Texas A&M University, College Station, TX, USA
| | - E Estrada-Cortés
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - S Dikmen
- Department of Animal Science, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey
| | - F Sosa
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - L M Jensen
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - L Sang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - L G B Siqueira
- Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil
| | - J H M Viana
- Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil
| | - P J Hansen
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
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15
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Sang L, Xiao Y, Jiang Z, Forde N, Tian XC, Lonergan P, Hansen PJ. Atlas of receptor genes expressed by the bovine morula and corresponding ligand-related genes expressed by uterine endometrium. Mol Reprod Dev 2021; 88:694-704. [PMID: 34596291 PMCID: PMC8558826 DOI: 10.1002/mrd.23534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/04/2021] [Accepted: 09/06/2021] [Indexed: 01/29/2023]
Abstract
Regulation of the mammalian embryo involves cell‐signaling molecules produced by the maternal oviduct and endometrium. Here, datasets on the transcriptome of the gestational Days 5 and 6 bovine morula and Day 5 maternal endometrium were examined to identify receptor genes expressed by the morula and expression of the corresponding ligand‐related genes in the endometrium. A total of 175 receptor genes were identified in the morula, including 48 encoding for growth factors or WNT signaling molecules, 25 for cytokines and chemokines, 35 involved in juxtacrine and matricellular signaling and 25 encoding for receptors for small molecules. Some of the highly‐expressed pairs of endometrial ligand and embryo receptor genes included MDK and its receptors ITGB1, SDC4 and LRP2, WNT5A (RYK), VEGFA (ITGB1), GPI (AMFR), and the hedgehog proteins IHH and DHH (HHIP). The most highly expressed receptors for small molecules were GPRC5C (retinoic acid receptor), PGRMC1 (progesterone), and CHRNB2 (acetylcholine). There were also 84 genes encoding for cell signaling ligands expressed by the morula, with the most highly expressed being GPI, AIMP1, TIMP1, IK, and CCN2. The atlas of receptor and ligand genes should prove useful for understanding details of the communication between the embryo and mother that underlies optimal embryonic development.
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Affiliation(s)
- Lei Sang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China.,Department of Animal Sciences, D.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida, USA
| | - Yao Xiao
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
| | - Zongliang Jiang
- School of Animal Sciences, AgCenter, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Niamh Forde
- Department of Discovery and Translational Sciences, University of Leeds, Leeds, UK
| | - Xiuchun Cindy Tian
- Department of Animal Science, University of Connecticut, Storrs, Connecticut, USA
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College, Dublin, Ireland
| | - Peter J Hansen
- Department of Animal Sciences, D.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida, USA
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Shen J, Yang J, Sang L, Sun R, Bai W, Wang C, Sun Y, Sun J. PYK2 mediates the BRAF inhibitor (vermurafenib)-induced invadopodia formation and metastasis in melanomas. Cancer Biol Med 2021; 19:j.issn.2095-3941.2020.0294. [PMID: 34570440 PMCID: PMC9425182 DOI: 10.20892/j.issn.2095-3941.2020.0294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objective: The BRAF inhibitor, vemurafenib, has been widely used in the treatment of patients with melanoma-bearing BRAFV600E mutations. While the initial response to vemurafenib is usually excellent, the majority of patients eventually develop resistance and metastatic disease. However, the underlying molecular mechanism remains elusive. The objective of this study was therefore to identify additional molecular targets responsible for vemurafenib resistance. Methods: Western blots and immunohistochemistry analyses were used to evaluate expressions of PYK2 and p-PYK2 in cultured cells and melanoma tissue microarrays. The relationships of p-PYK2 with clinicopathological parameters were statistically analyzed. Invadopodia cell invasion, and a Ca2+ assay were used to determine the effect of vemurafenib resistance-induced p-PYK2 on melanoma progression. A mouse model was used to assess the effects of PYK2 on melanoma metastasis. Results: Elevated p-PYK2 levels were detected in vemurafenib-resistant melanoma cells, and PYK2 was shown to regulate invadopodia formation in melanoma cells. Vemurafenib triggered invadopodia formation by activation of PYK2. Inhibition of PYK2 with either shRNA or the small molecule inhibitor, PF562711, dramatically reduced vemurafenib-induced invadopodia formation. Furthermore, knockdown of PYK2 significantly reduced melanoma lung metastasis in vivo. Increased expressions of p-PYK2 in melanoma patients were positively correlated with advanced stage (P = 0.002), metastasis (P < 0.001), and Clark grade (P < 0.001), and were also associated with short overall survival [hazard ratio (HR) = 3.304, P = 0.007] and progression-free survival (HR = 2.930, P = 0.001). Conclusions: PYK2 mediated vemurafenib-induced melanoma cell migration and invasion. Inhibition of PYK2 resensitized melanoma cells to vemurafenib. Phospho-PYK2 was a prognostic biomarker in melanoma patients.
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Affiliation(s)
- Junling Shen
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Jilong Yang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Lei Sang
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Rui Sun
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Weiyu Bai
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Chao Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yan Sun
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Jianwei Sun
- Center for Life Sciences, School of Life Sciences, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
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Xie L, Sang L, Li Z. Does low dose of etoricoxib play pre-emptive analgesic effect in third molar surgery? A randomized clinical trial. BMC Oral Health 2021; 21:462. [PMID: 34556118 PMCID: PMC8459478 DOI: 10.1186/s12903-021-01837-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background How to prevent pain after the extraction of impacted teeth is a serious challenge for all patients. The purpose of this clinical trial was to investigate whether pre-emptive low dose of etoricoxib can reduce postoperative pain in patients undergoing third molars surgery. Methods Patients were randomised to receive etoricoxib 60 mg or placebo 30 min before surgery. Post-operative pain was recorded using a visual analogue scale during 24 h within the post-operative period. The total dose of ibuprofen rescue intake was recorded. Kaplan–Meier curves and log-rank analyses were used to evaluate the proportion of patients without rescue analgesic. Results Scores for the post-operative pain in the etoricoxib group were significantly lower than those in the placebo group during first 12 h (p < 0.05). The number of patients without analgesic rescue medication was significantly lower in the etoricoxib group than in the placebo group. The average amount of rescue medication in the etoricoxib group (0.4 ± 0.9 dose) was lower than that in the placebo group (1.1 ± 0.9 doses, p = 0.004). Etoricoxib resulted in the long-term survival of patients without rescue analgesic (p < 0.001). Conclusions This study revealed that etoricoxib has a substantial pre-emptive analgesic effect, resulting in the reduced use of analgesics after third molar removal. Trial registration: Registered on ChiCTR1900024503. Date of Registration: 13/07/2019. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01837-0.
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Affiliation(s)
- Long Xie
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, China
| | - Lei Sang
- Department of Stomatology, Suzhou Vocational Health College, Suzhou, China
| | - Zhi Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China. .,Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, China.
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Sang L, Li YM. [The application prospect of electrical impedance tomography in chronic airway disease]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:784-786. [PMID: 34496518 DOI: 10.3760/cma.j.cn112147-20210427-00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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20
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Wang J, Sun S, Chen Y, Chen D, Sang L, Xie X. Characterization of Staphylococcus aureus ST3320 clone causing fatal respiratory infection in rabbits. World Rabbit Sci 2021. [DOI: 10.4995/wrs.2021.14280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
<em>Staphylococcus aureus</em> is a well-known pathogen that infects humans and animals. However, information on the fatal respiratory infection in rabbits caused by<em> S. aureus</em> is still limited. In the present study, a <em>S. aureus</em> isolate designated ND01 was recovered from lung samples of rabbits that died of fatal respiratory infection, and the ND01 was characterised by intranasal infection of rabbits, multi-locus sequencing typing, screening virulence genes and testing antimicrobial susceptibility. Clinical signs of matted forepaws and pathological lesions of haemorrhagic tracheitis and necrotising haemorrhagic pneumonia were observed in the ND01 infected rabbits, which were identical to those of naturally infected ones. The sequence type of the ND01 was defined as ST3320 and the ND01 was further grouped into the clonal complex 398. Notably, the ND01 was <em>pvl-positive</em> <em>S. aureus</em> and carried the human-associated scn gene. Moreover, the ND01 was methicillin-susceptible <em>S. aureus</em> and was susceptible to 6 of 10 tested antibiotics. This study described the characteristics of the ND01 causing fatal respiratory infection in rabbits. The results are helpful to further the understanding of the pathogenicity of S. aureus ST3320 clone in rabbits. The results also highlighted that operators must be on the alert for the colonisation of <em>pvl-positive</em> <em>S. aureus</em> in rabbits and potential transmission events between rabbits and humans.
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21
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Sang L, He YJ, Kang J, Ye H, Bai W, Luo XD, Sun J. Mitochondrial Deoxyguanosine Kinase Regulates NAD + Biogenesis Independent of Mitochondria Complex I Activity. Front Oncol 2020; 10:570656. [PMID: 33392072 PMCID: PMC7775518 DOI: 10.3389/fonc.2020.570656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 11/17/2020] [Indexed: 11/13/2022] Open
Abstract
Overexpression of DGUOK promotes mitochondria oxidative phosphorylation and lung adenocarcinoma progression. However, the role and mechanism of DGUOK in regulation of mitochondria function and lung cancer progression still poorly understood. Here we demonstrated that DGUOK regulated NAD+ biogenesis. Depletion of the DGUOK significantly decreased NAD+ level. Furthermore, knockout of the DGUOK considerably reduced expression of the NMNAT2, a key molecule controlling NAD+ synthesis, at both mRNA and protein levels. Ectopic expression of the NMNAT2 abrogated the effect of knockdown of DGUOK on NAD+. Notably, this regulation is independent of DGUOK -mediated mitochondria complex I activity. We also showed that NMNAT2 was highly expressed in lung adenocarcinoma and negatively correlated with the patient overall survival. Our study suggested that DGUOK regulates NAD+ in a NMNAT2 dependent manner and DGUOK-NMNAT2-NAD+ axis could be a potential therapeutic target in lung adenocarcinoma.
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Affiliation(s)
- Lei Sang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
| | - Ying-Jie He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jiaxin Kang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
| | - Hongyi Ye
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
| | - Weiyu Bai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jianwei Sun
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
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Sang L, Ortiz W, Xiao Y, Estrada-Cortes E, Jannaman EA, Hansen PJ. Actions of putative embryokines on development of the preimplantation bovine embryo to the blastocyst stage. J Dairy Sci 2020; 103:11930-11944. [PMID: 33041033 DOI: 10.3168/jds.2020-19068] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/29/2020] [Indexed: 12/15/2022]
Abstract
Once it enters the uterus at d 4 to 5 after ovulation, the preimplantation bovine embryo is controlled in its development by regulatory signaling molecules from the mother called embryokines. Here, several cell-signaling molecules whose genes are expressed in the endometrium during d 5 to 7 after estrus were tested for the ability to affect the competence of the embryo for further development and the characteristics of the resultant blastocysts. Molecules tested were C-natriuretic peptide (CNP), IL-8, bovine morphogenetic protein 4 (BMP-4), IL-6, and leukemia inhibitory factor (LIF). None of the cell-signaling molecules tested improved the competence of the embryo to become a blastocyst; in fact, BMP-4 decreased development. All molecules modified attributes of the blastocyst formed in culture. In particular, CNP increased the number of cells in the ICM, whereas IL-8 decreased inner cell mass cell numbers and tended to increase the proportion of blastocysts that were hatching or hatched. In addition, BMP-4 decreased the proportion of blastocysts that were hatching. Interleukin-6 and, to a lesser extent, LIF activated the Janus kinase (JAK)/signal transducer and activator of transcription 3 (STAT3) signaling pathway in the inner cell mass, and LIF increased the percent of cells in the blastocyst that were positive for both NANOG and phosphorylated (activated) STAT3. In conclusion, our results indicate that CNP, IL-8, IL-6, LIF, and BMP-4 can modify embryonic development of the cow in a manner that affects characteristics of the resultant blastocyst. Further research is required to understand how these changes in characteristics of the blastocyst would affect competence of the embryo to establish and maintain pregnancy.
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Affiliation(s)
- Lei Sang
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910; Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, 350013, China
| | - W Ortiz
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910
| | - Y Xiao
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910
| | - E Estrada-Cortes
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910; Campo Experimental Centro Altos de Jalisco, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Tepatitlán de Morelos, Jalisco, México 47600
| | - E A Jannaman
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910
| | - P J Hansen
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611-0910.
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Jiang L, Li LY, Wu AH, Jiang RM, Zheng RQ, Li XY, Sang L, Pan C, Zheng X, Zhong M, Zhang W, Guan XD, Tong ZH, Du B, Qiu HB. [2019 novel coronavirus: appropriate rather than undue protection]. Zhonghua Nei Ke Za Zhi 2020; 59:662-664. [PMID: 32838496 DOI: 10.3760/cma.j.cn112138-20200303-00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L Jiang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L Y Li
- Department of Healthcare-Associated Infection Management and Disease Prevention and Control, Peking University First Hospital, Beijing 100034, China
| | - A H Wu
- Center of Healthcare-associated Infection Control, Xiangya Hospital, Central South University, Changsha 410008, China
| | - R M Jiang
- Second Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - R Q Zheng
- Department of Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - X Y Li
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - L Sang
- Department of Critical Care Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - C Pan
- Department of Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - X Zheng
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
| | - M Zhong
- Department of Critical Care Medicine, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - W Zhang
- Department of Emergency, the 900th Hospital of Joint Service Corps of Chinese PLA, Fuzhou 350025, China
| | - X D Guan
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Z H Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - B Du
- Department of Medical Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H B Qiu
- Department of Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing 210009, China
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Bai K, Cheng X, Xue Z, Song H, Sang L, Zhang F, Liu F, Luo X, Huang W, Huang Y, Zhang Y. Geometrically reconfigurable 3D mesostructures and electromagnetic devices through a rational bottom-up design strategy. Sci Adv 2020; 6:eabb7417. [PMID: 32832676 PMCID: PMC7439572 DOI: 10.1126/sciadv.abb7417] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/05/2020] [Indexed: 05/07/2023]
Abstract
Microelectronic devices with reconfigurable three-dimensional (3D) microarchitecture that can be repetitively switched among different geometrical and/or working states have promising applications in widespread areas. Traditional approaches usually rely on stimulated deformations of active materials under external electric/magnetic fields, which could potentially introduce parasitic side effects and lower device performances. Development of a rational strategy that allows access to high-performance 3D microdevices with multiple stable geometric configurations remains challenging. We introduce a mechanically guided scheme to build geometrically reconfigurable 3D mesostructures through a bottom-up design strategy based on a class of elementary reconfigurable structures with the simplest ribbon geometries. Quantitative mechanics modeling of the structural reconfigurability allows for the development of phase diagrams and design maps. Demonstrations of ~30 reconfigurable mesostructures with diverse geometric topologies and characteristic dimensions illustrate the versatile applicability. The multimode nature enables customized distinct beamforming and discrete beam scanning using a single antenna capable of on-demand reconfiguration.
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Affiliation(s)
- Ke Bai
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Xu Cheng
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Zhaoguo Xue
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Honglie Song
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Lei Sang
- School of Microelectronics, Hefei University of Technology, Anhui 230009, P.R. China
| | - Fan Zhang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Fei Liu
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Xiang Luo
- School of Microelectronics, Hefei University of Technology, Anhui 230009, P.R. China
| | - Wen Huang
- School of Microelectronics, Hefei University of Technology, Anhui 230009, P.R. China
| | - Yonggang Huang
- Departments of Civil and Environmental Engineering, Mechanical Engineering, and Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Yihui Zhang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
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Zhang J, Yao WW, Sang L, Pan XW, Wang XZ, Liu WL, Wang L, Ren XM. Multi-step structural phase transitions with novel symmetry breaking and inverse symmetry breaking characteristics in a [Ag 4I 6] 2- cluster hybrid crystal. Chem Commun (Camb) 2020; 56:462-465. [PMID: 31825446 DOI: 10.1039/c9cc08394d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a multi-step phase transition hybrid composed of (Pr-dabco)2Ag4I6 clusters (Pr-dabco+ = 1-propyl-1,4-diazabicyclo[2.2.2]octan-1-ium) has been prepared and characterized by microanalysis, IR and UV-vis spectroscopy, TG and DSC techniques, etc. This hybrid is thermally stable up to ∼486 K with five phases in the temperature region below 486 K. The phase transition shows symmetry breaking (SB) character between phases II (space group P21/c) and III (space group Pa3[combining macron]), while inverse symmetry breaking (ISB) between phases II and I (space group Pbca), and it is rather exceptional for matter to exhibit simultaneously SB and ISB nature in two successive phase transitions. Most importantly, each phase transition is associated with a dielectric anomaly, and phase V appears to be a plastic crystal with extra high ac conductivity (>10-2 S cm-1). Our work opens up new avenues to find a multi-phase transition material in silver halide hybrids.
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Affiliation(s)
- Jin Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
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26
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Huang W, Yang Z, Kraman MD, Wang Q, Ou Z, Rojo MM, Yalamarthy AS, Chen V, Lian F, Ni JH, Liu S, Yu H, Sang L, Michaels J, Sievers DJ, Eden JG, Braun PV, Chen Q, Gong S, Senesky DG, Pop E, Li X. Monolithic mtesla-level magnetic induction by self-rolled-up membrane technology. Sci Adv 2020; 6:eaay4508. [PMID: 32010770 PMCID: PMC6968933 DOI: 10.1126/sciadv.aay4508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/15/2019] [Indexed: 05/08/2023]
Abstract
Monolithic strong magnetic induction at the mtesla to tesla level provides essential functionalities to physical, chemical, and medical systems. Current design options are constrained by existing capabilities in three-dimensional (3D) structure construction, current handling, and magnetic material integration. We report here geometric transformation of large-area and relatively thick (~100 to 250 nm) 2D nanomembranes into multiturn 3D air-core microtubes by a vapor-phase self-rolled-up membrane (S-RuM) nanotechnology, combined with postrolling integration of ferrofluid magnetic materials by capillary force. Hundreds of S-RuM power inductors on sapphire are designed and tested, with maximum operating frequency exceeding 500 MHz. An inductance of 1.24 μH at 10 kHz has been achieved for a single microtube inductor, with corresponding areal and volumetric inductance densities of 3 μH/mm2 and 23 μH/mm3, respectively. The simulated intensity of the magnetic induction reaches tens of mtesla in fabricated devices at 10 MHz.
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Affiliation(s)
- Wen Huang
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei, Anhui 230601, China
| | - Zhendong Yang
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Mark D. Kraman
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Qingyi Wang
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Zihao Ou
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL 61801, USA
| | - Miguel Muñoz Rojo
- Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Thermal and Fluid Engineering, University of Twente, Enschede, 7500 AE, Netherlands
| | | | - Victoria Chen
- Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Feifei Lian
- Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Jimmy H. Ni
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Siyu Liu
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Haotian Yu
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei, Anhui 230601, China
| | - Lei Sang
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei, Anhui 230601, China
| | - Julian Michaels
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Dane J. Sievers
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - J. Gary Eden
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Paul V. Braun
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL 61801, USA
| | - Qian Chen
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL 61801, USA
| | - Songbin Gong
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
| | - Debbie G. Senesky
- Department of Aeronautics and Astronautics, Stanford University, Stanford, CA 94305, USA
| | - Eric Pop
- Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Xiuling Li
- Department of Electrical and Computer Engineering and Micro and Nanotechnology Laboratory, University of Illinois, Urbana, IL 61801, USA
- Corresponding author.
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Wang J, Sang L, Sun S, Chen Y, Chen D, Xie X. Characterization of Pasteurella multocida isolated from dead rabbits with respiratory disease in Fujian, China. BMC Vet Res 2019; 15:438. [PMID: 31801544 PMCID: PMC6894249 DOI: 10.1186/s12917-019-2191-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 11/25/2019] [Indexed: 11/30/2022] Open
Abstract
Background Pasteurella multocida is one of the important pathogens that infect rabbits, causing major economic losses in commercial rabbit farming. In this study, 205 P. multocida isolates recovered from lungs of dead rabbits with respiratory disease were defined by capsular serogroups, lipopolysaccharide (LPS) genotypes, multi-locus sequence types and screened virulence factors by using PCR assays, and tested antimicrobial susceptibility. Results The 205 isolates were assigned into 2 capsular types, A and D, and 2 LPS genotypes, L3 and L6. When combining capsular types with LPS genotypes, 4 serotypes were detected. A:L3 (51.22%, 105/205) was the most predominant serotype, followed by A:L6 (24.88%, 51/205), D:L6 (19.02%, 39/205) and D:L3 (4.88%, 10/205). The 205 isolates were grouped into 3 sequence types, ST10, ST11 and ST12. ST12 (56.10%, 115/205) was the most prevalent sequence type, followed by ST10 (24.88%, 51/205) and ST11 (19.02%, 39/205). In the 205 isolates, virulence associated genes ptfA, fur, hgbB, ompA, ompH and oma87 were positive in the PCR screening, whereas the toxA and tbpA genes were negative. Notably, the 156 capsular serogroup A isolates carried the pmHAS gene. All the 205 isolates were susceptible to most of the used antibiotics, except for streptomycin, gentamycin, kanamycin and ceftriaxone, and the resistance rates of which were 27.80, 15.61, 9.27 and 2.44%, respectively. Conclusions This study, for the first time, described the prevalence and characteristics of P. multocida causing respiratory disease in rabbits in Fujian Province, which might be useful for tracking the epidemic strains and development of efficient vaccines and methods to prevent and control the pathogen.
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Affiliation(s)
- Jinxiang Wang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China
| | - Lei Sang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China
| | - Shikun Sun
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China
| | - Yanfeng Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China
| | - Dongjin Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China
| | - Xiping Xie
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, No. 100 Pudang Road, Xindian Town, Jin'an District, Fuzhou, Fujian Province, People's Republic of China.
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Pang W, Cheng X, Zhao H, Guo X, Ji Z, Li G, Liang Y, Xue Z, Song H, Zhang F, Xu Z, Sang L, Huang W, Li T, Zhang Y. Electro-mechanically controlled assembly of reconfigurable 3D mesostructures and electronic devices based on dielectric elastomer platforms. Natl Sci Rev 2019; 7:342-354. [PMID: 34692050 PMCID: PMC8288899 DOI: 10.1093/nsr/nwz164] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/11/2019] [Accepted: 10/16/2019] [Indexed: 01/29/2023] Open
Abstract
The manufacture of 3D mesostructures is receiving rapidly increasing attention, because of the fundamental significance and practical applications across wide-ranging areas. The recently developed approach of buckling-guided assembly allows deterministic formation of complex 3D mesostructures in a broad set of functional materials, with feature sizes spanning nanoscale to centimeter-scale. Previous studies mostly exploited mechanically controlled assembly platforms using elastomer substrates, which limits the capabilities to achieve on-demand local assembly, and to reshape assembled mesostructures into distinct 3D configurations. This work introduces a set of design concepts and assembly strategies to utilize dielectric elastomer actuators as powerful platforms for the electro-mechanically controlled 3D assembly. Capabilities of sequential, local loading with desired strain distributions allow access to precisely tailored 3D mesostructures that can be reshaped into distinct geometries, as demonstrated by experimental and theoretical studies of ∼30 examples. A reconfigurable inductive–capacitive radio-frequency circuit consisting of morphable 3D capacitors serves as an application example.
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Affiliation(s)
- Wenbo Pang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Xu Cheng
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Haojie Zhao
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei 230601, China
| | - Xiaogang Guo
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Ziyao Ji
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Guorui Li
- Zhejiang Lab, Hangzhou 311100, China
| | | | - Zhaoguo Xue
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Honglie Song
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Fan Zhang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Zheng Xu
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
- State Key Laboratory for Manufacturing and Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Sang
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei 230601, China
| | - Wen Huang
- School of Microelectronics, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei 230601, China
| | - Tiefeng Li
- Center for X-Mechanics, Zhejiang University, Hangzhou 310027, China
| | - Yihui Zhang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
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Sang L, Zhou H, Yang Z, Kraman MD, Zhao H, Michaels JA, Sievers DJ, Schutt-Aine JE, Li X, Huang W. Monolithic radio frequency SiN x self-rolled-up nanomembrane interdigital capacitor modeling and fabrication. Nanotechnology 2019; 30:364001. [PMID: 31121568 DOI: 10.1088/1361-6528/ab244b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Monolithic capacitors operating at radio frequencies (RF) serve as critical components in integrated circuits for wireless communication. Design and fabrication innovations for high capacitance density RF capacitors are highly desired for the miniaturization of RFIC chips. However, practical and simple solutions are limited by existing capabilities in three-dimensional (3D) structure construction and the effective configuration of electrodes. We report a unique route to achieve unprecedentedly high capacitance density at a high operating frequency through a capacitor configuration of 3D coil interdigital electrodes using planar semiconductor processing compatible materials and fabrication methods. A systematic mechanical-electrical design principle is demonstrated, and fabricated devices show a maximum 21.5 pF capacitance, which is 17.2× larger after rolling up. The corresponding capacitance density is as large as 371 pF mm-2, with resonant frequency of 1.5 GHz. The performance could be improved significantly by simply rolling up more turns with minimal change to the area footprint.
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Affiliation(s)
- Lei Sang
- School of Microelectronics Engineering, Academy of Photoelectric Technology, Soft Membrane Electronic Technology Laboratory, Hefei University of Technology, Hefei, Anhui 230601, People's Republic of China
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Zhou T, Ding L, Che G, Jiang W, Sang L. Recent advances and trends of molecularly imprinted polymers for specific recognition in aqueous matrix: Preparation and application in sample pretreatment. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.02.028] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wang J, Sang L, Chen Y, Sun S, Chen D, Xie X. Characterisation of Staphylococcus aureus strain causing severe respiratory disease in rabbits. World Rabbit Sci 2019. [DOI: 10.4995/wrs.2019.10454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
<em>Staphylococcus aureus</em> is acknowledged as one of the important pathogens isolated from humans and animals. However, the <em>S. aureus</em> causing severe respiratory diseases in rabbits have not been well characterised. A <em>S. aureus</em> named FZHW001, isolated from the lungs of dead rabbits with severe respiratory disease, was characterised by artificial infection of rabbits, detection of virulence factors, multi-locus sequencing typing and antimicrobial susceptibility test. The FZHW001 infected rabbits showed identical respiratory symptoms to those of naturally infected ones, and the isolate could spread through directed contact among rabbits. The isolate was typed into clonal complex 121 and carried 7 of 13 tested virulence factors. Furthermore, the isolate was identified to be methicillin-susceptible <em>S. aureus</em> and was susceptible to 7 of 12 tested antibiotics. This study first describes the characteristics of <em>S. aureus</em> isolated from rabbits causing severe respiratory disease, which will help in further understanding the pathogenic mechanisms of <em>S. aureus</em> in rabbits.
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Sang L, Hao W, Zhao Y, Yao L, Cui P. Highly aligned graphene oxide/waterborne polyurethane fabricated by in-situ polymerization at low temperature. e-Polymers 2018. [DOI: 10.1515/epoly-2017-0141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractNanocomposites of waterborne polyurethane (WPU) containing graphene oxide sheets (GO) were prepared by an in-situ polymerization method at low temperature. The morphology and interface structure were characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Without undergoing complicated functionalization processes, GO can be finely embed into a WPU matrix and present high degree of orientation at high GO contents, due to the formation of chemical bonds and hydrogen bonding. From the Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and dynamic mechanical analysis (DMA) results, incorporation of GO exists in two ways and shows inverse effects. At a content of 2.0 wt.% GO loading, the tensile elastic modulus of the GO-WPU film increased by 193% to neat WPU. The nanocomposites also displayed 30°C higher thermal stability than WPU in thermogravimetric (TG) curves. This environment-friendly method may pave the way to design graphene-based polymer composites.
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Affiliation(s)
- Lei Sang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Peoples Republic of China
| | - Wentao Hao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Peoples Republic of China
| | - Yuanyuan Zhao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Peoples Republic of China
| | - Lulu Yao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Peoples Republic of China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Peoples Republic of China
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Zhang Y, Sang L, Li P, Li Z, Fan J, Ran X. Influence of the swirling jet on pulverized coal gasification performance based on CFD simulation. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.23015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yue Zhang
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
| | - Lei Sang
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
| | - Ping Li
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
| | - Zhuangmei Li
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
| | - Jianjiang Fan
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
| | - Xiaowen Ran
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P. R. China
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Liu J, Peng L, Huang W, Li Z, Pan J, Sang L, Lu S, Zhang J, Li W, Luo Y. Balancing Between Aging and Cancer: Molecular Genetics Meets Traditional Chinese Medicine. J Cell Biochem 2017; 118:2581-2586. [DOI: 10.1002/jcb.25898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/18/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Jing Liu
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Lei Peng
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Wenhui Huang
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Zhiming Li
- Institute of Medicinal Plants; Yunnan Academy of Agricultural Sciences; Kunming 650200 China
| | - Jun Pan
- Institute of Medicinal Plants; Yunnan Academy of Agricultural Sciences; Kunming 650200 China
| | - Lei Sang
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Siqian Lu
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Jihong Zhang
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
| | - Wanyi Li
- Institute of Medicinal Plants; Yunnan Academy of Agricultural Sciences; Kunming 650200 China
| | - Ying Luo
- Lab of Molecular Genetics of Aging and Tumor; Faculty of Medicine; Kunming University of Science and Technology; Chenggong County, Kunming Yunnan Province 650500 China
- Yunnan Provincial Institute of Digestive Disease; Kunming; Yunnan Province 650011 China
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Shen L, Liu L, Ge L, Xie L, Liu S, Sang L, Zhan T, Li H. miR-448 downregulates MPPED2 to promote cancer proliferation and inhibit apoptosis in oral squamous cell carcinoma. Exp Ther Med 2016; 12:2747-2752. [PMID: 27698780 DOI: 10.3892/etm.2016.3659] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/15/2016] [Indexed: 12/21/2022] Open
Abstract
The incidence of oral squamous cell carcinoma (OSCC) is continuously increasing while its survival rate has not notably improved. There is a pressing need for improved understanding of the genetic regulation of OSCC tumorigenesis and progression. In this study, the function of miR-448 in the regulation of OSCC growth and its putative target were thoroughly analyzed in vitro. The expression of miR-448 was detected in human OSCC specimens and OSCC cell lines (Cal-27 and Scc-9) by reverse transcription-quantitative polymerase chain reaction. The function of miR-448 was investigated in Cal-27 cells transfected with miR-448 inhibitor, and its putative target determined using a luciferase reporter assay. MTT and wound healing assays and flow cytometry were used to evaluate the effects of miR-448 on OSCC proliferation, metastasis and apoptosis. The level of miR-448 was significantly elevated in human OSCC tissues and the Cal-27 cell line. Suppression of miR-448 expression attenuated cell proliferation and migration, and induced apoptosis of Cal-27 cells. Furthermore, miR-448 bound with the 3'-untranslated region of metallophosphoesterase domain containing 2 (MPPED2) mRNA, thereby reducing the MPPED2 protein level. Thus, it appears that miR-448 acts as a tumor inducer, causing OSCC growth by inhibiting the expression of its target MPPED2. These results demonstrate that miR-448 plays a critical role in OSCC tumorigenesis, and is a potential therapeutic target.
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Affiliation(s)
- Linhan Shen
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Liu Liu
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Liangyu Ge
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Long Xie
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, P.R. China
| | - Siyu Liu
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Lei Sang
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Suzhou, Jiangsu 215002, P.R. China
| | - Tiantian Zhan
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Hongwei Li
- Jiangsu Key Laboratory of Oral Diseases, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China; Jiangsu Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029 P.R. China
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Ge L, Liu S, Xie L, Sang L, Ma C, Li H. Differential mRNA expression profiling of oral squamous cell carcinoma by high-throughput RNA sequencing. J Biomed Res 2015; 29:397. [PMID: 26273018 PMCID: PMC4585435 DOI: 10.7555/jbr.29.20140088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 08/12/2014] [Accepted: 11/22/2014] [Indexed: 12/20/2022] Open
Abstract
Differentially expressed genes are thought to regulate the development and progression of oral squamous cell carcinomas (OSCC). The purpose of this study was to screen differentially expressed mRNAs in OSCC and matched paraneoplastic normal tissues, and to explore the intrinsic mechanism of OSCC development and progression. We obtained the differentially expressed mRNA expression profiles in 10 pairs of fresh-frozen OSCC tissue specimens and matched paraneoplastic normal tissue specimens by high-throughput RNA sequencing. By using Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses, the functional significance of the differentially expressed genes were analyzed. We identified 1,120 significantly up-regulated mRNAs and 178 significantly down-regulated mRNAs in OSCC, compared to normal tissue. The differentially expressed mRNAs were involved in 20 biological processes and 68 signal pathways. Compared to adjacent normal tissue, the expression of MAGEA11 was up-regulated; TCHH was down-regulated. These findings were verified by real-time PCR. These differentially expressed mRNAs may function as oncogenes or tumor suppressors in the development and progression of OSCC. This study provides novel insights into OSCC. However, further work is needed to determine if these differentially expressed mRNAs have potential roles as diagnostic biomarkers and candidate therapeutic targets for OSCC.
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Affiliation(s)
- Liangyu Ge
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Siyu Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Long Xie
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Lei Sang
- Department of Oral and Maxillofacial Surgery, Suzhou Huaxia Stomatological Hospital, Suzhou, Jiangsu 215002, China
| | - Changyan Ma
- Department of Developmental Genetics, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Hongwei Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
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Abstract
Inconclusive information for the role of dairy food intake in relation to ovarian cancer risk may associate with adverse effects of lactose, which has been hypothesized to increase gonadotropin levels in animal models and ecological studies. Up to now, several studies have indicated the association between dairy food intake and risk of ovarian cancer, but no identified founding was reported. We performed this meta-analysis to derive a more precise estimation of the association between dairy food intake and ovarian cancer risk. Using the data from 19 available publications, we examined dairy food including low-fat/skim milk, whole milk, yogurt and lactose in relation to risk of ovarian cancer by meta-analysis. Pooled odds ratio (OR) with 95% confidence interval (CI) were used to assess the association. We observed a slightly increased risk of ovarian cancer with high intake of whole milk, but has no statistical significance (OR = 1.228, 95% CI = 1.031-1.464, P = 0.022). The results of other milk models did not provide evidence of positive association with ovarian cancer risk. This meta-analysis suggests that low-fat/skim milk, whole milk, yogurt and lactose intake has no associated with increased risk of ovarian cancer. Further studies with larger participants worldwide are needed to validate the association between dairy food intake and ovarian cancer.
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Affiliation(s)
- Jing Liu
- a Lab of Molecular Genetics of Aging and Tumor, Faculty of Medicine , Kunming University of Science and Technology , Kunming , China
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Liu S, Xie L, Qi B, Ma C, Sang L, Li H. [Differential expression profiles of microRNAs/mRNA and docking study in oral squamous cell carcinoma]. Hua Xi Kou Qiang Yi Xue Za Zhi 2014; 32:400-403. [PMID: 25241546 PMCID: PMC7041071 DOI: 10.7518/hxkq.2014.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 05/06/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To construct and analyze the differential expression profiles of microRNAs (miRNA) and mRNA in oral squamous cell carcinoma (OSCC). To explore the miRNA and mRNA of OSCC development and progression. METHODS The differential expression profiles of miRNA and mRNA were built by high-throughput deep sequencing technology. Using Gene Ontology (GO) enrichment analysis, the roles of differentially expressed miRNA and mRNA in cell cycle, cell proliferation, cell differentiation and cell apoptosis were analyzed. RESULTS Seventy-seven differentially expressed miRNA and 1 298 differentially expressed mRNAs were identified in OSCC. GO analysis showed that 73 miRNA had found target mRNA in cell cycle, cell proliferation, cell differentiation and cell apoptosis of OSCC. Moreover, a miRNA could regulate multiple mRNA. CONCLUSION The differential expression profiles of miRNA and mRNA have close relationship with the development and progression of OSCC.
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Tang K, Yang WC, Li X, Wu CJ, Sang L, Yang LG. GDF-9 and bFGF enhance the effect of FSH on the survival, activation, and growth of cattle primordial follicles. Anim Reprod Sci 2012; 131:129-34. [PMID: 22516229 DOI: 10.1016/j.anireprosci.2012.03.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 03/15/2012] [Accepted: 03/19/2012] [Indexed: 11/18/2022]
Abstract
This study aims to investigate the effects of follicle stimulating hormone (FSH) in combination with growth and differentiation factor-9 (GDF-9) or basic fibroblast growth factor (bFGF) on the activation, survival and growth of cattle primordial follicles. Ovarian tissues were cultured for 3, 7, 14, 22 days in α minimum essential medium (α-MEM) supplemented with FSH, FSH+GDF-9 or FSH+bFGF. Non-cultured and cultured ovarian fragments were processed for histological and TUNEL analysis. Compared to the FSH medium, the results showed FSH+GDF-9 medium increased the percentage of primary follicles in all culture periods and secondary follicles after 14 days of culture (P<0.05), meanwhile the diameter of primary and secondary follicles were also observed to increase in this medium after 7 days of cultures (P<0.05). FSH+bFGF medium appeared to increase the percentage of primary follicles after 14 days of culture and secondary follicles at day 14 of culture than FSH medium (P<0.05). Furthermore, the FSH+GDF-9 and FSH+bFGF mediums had a greater percentage of normal follicles, and lesser apoptotic cell rates than FSH medium. The results first indicated that FSH in combination with GDF-9 or bFGF can improve the survival, activation, and growth of cattle primordial follicles after the long-term culture of ovarian cortex.
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Affiliation(s)
- KeQiong Tang
- Key Laboratory under Education Ministry of China for Agricultural Animal Genetics, Breeding, and Reproduction, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
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Sang L, Chen SL, Yuan G, Zheng M, You J, Chen A, Li R, Chen L. Metathesis of 1-butene and 2-butene to propene over Re2O7 supported on macro-mesoporous γ-alumina prepared via a dual template method. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/s1003-9953(11)60340-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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42
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Sun LP, Du QZ, Song YP, Yu JN, Wang SJ, Sang L, Song LW, Yue YM, Lian YZ, Zhang SL, Hua GH, Zhang SJ, Yang LG. Polymorphisms in luteinizing hormone receptor and hypothalamic gonadotropin-releasing hormone genes and their effects on sperm quality traits in Chinese Holstein bulls. Mol Biol Rep 2012; 39:7117-23. [PMID: 22327646 DOI: 10.1007/s11033-012-1543-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Accepted: 01/24/2012] [Indexed: 11/26/2022]
Abstract
Genes of hypothalamic-pituitary-gonadal axis play a key role in male reproductive performance. This study evaluated the polymorphisms of luteinizing hormone receptor (LHR) and hypothalamic gonadotropin-releasing hormone (GnRH) genes and their effects on sperm quality traits including semen volume per ejaculate (VOL), sperm density (SD), fresh sperm motility (FSM), thawed sperm motility (TSM), acrosome integrity rate (AIR), and abnormal sperm rate (ASR) collected from 205 Chinese Hostein bulls. The study bulls consisted of 205 mature Chinese Holstein, 27 Simmental, 28 Charolais, and 14 German yellow cattle. One single nucleotide polymorphism (SNP) (A883G) in exon 2 of GnRH and two SNPs (A51703G and G51656T) in intron 9 of LHR were identified in 274 bulls. Analysis of variance in 205 Chinese Holstein bulls showed that age had significant effect on both SD and FSM (P < 0.01), and ASR (P < 0.05). With regards to genotype and its interaction with age, only the SNP of G51656T in LHR gene had significant effect on SD (P < 0.05, P < 0.01; respectively). The association result showed that bulls with AG genotype had higher FSM than bulls with AA and GG genotype in LHR at 51,703 locus (P < 0.10), and bulls with GG genotype had higher SD than bulls with TT genotype in LHR at G51656T locus (P < 0.10). Phenotypic correlation among the traits revealed that significant negative correlations were observed between ASR and AIR (r = -0.736, P < 0.01), ASR and AIR (r = -0.500, P < 0.01). There were moderate positive correlations between VOL and SD (r = 0.422, P < 0.01), as well as FSM (r = 0.411, P < 0.01). In conclusion, LHR may be a potential marker for sperm quality of SD and FSM.
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Affiliation(s)
- Li-Ping Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Hubei, Wuhan, China.
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Sang L, Yang W, Han L, Liang A, Hua G, Xiong J, Huo L, Yang L. An immunological method to screen sex-specific proteins of bovine sperm. J Dairy Sci 2011; 94:2060-70. [DOI: 10.3168/jds.2010-3350] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Accepted: 12/14/2010] [Indexed: 12/15/2022]
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44
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Guo X, Jia Z, Zhang P, Yang S, Wu W, Sang L, Luo Y, Lu X, Dai H, Zeng Z, Wang W. Impact of mode of transportation on dyslipidaemia in working people in Beijing. Br J Sports Med 2009; 43:928-31. [DOI: 10.1136/bjsm.2008.049171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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45
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Liang A, Feng X, Han L, Hua G, Sang L, Liu X, Liu Y, Yang L. [Construction and characterization of a novel somatostatin prokaryotic expression]. Sheng Wu Gong Cheng Xue Bao 2008; 24:995-998. [PMID: 18807981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In the current work, the fusion gene including somatostatin (SS) and the hepatitis B surface antigen gene was cloned into a balanced lethal system plasmid (pYA3493), and then transformed into asd- attenuated Salmonella choleraesuis C500 strain, the positive transformant without antibiotic resistance gene was confirmed by restriction analysis and DNA sequencing, designated as pYA-SS. The expression and immunogenicity of fusion protein were detected by SDS-PAGE and Western blot analysis. These results show that the recombinant prokaryotic expression plasmid pYA-SS could express the SS fusion protein with good immunogenicity in C500 strain. In above all, this study could provide reliable materials to develop novel, good and safe vaccine in enhancing the growth of animals.
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Affiliation(s)
- Aixin Liang
- College of Animal Science &Technology, Huazhong Agricultural University, Wuhan 430070, China
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Feng X, Qiu G, Wang S, Sang L. Distribution and speciation of mercury in surface waters in mercury mining areas in Wanshan, Southwestern China. ACTA ACUST UNITED AC 2003. [DOI: 10.1051/jp4:20030339] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Wu L, Timmers C, Maiti B, Saavedra HI, Sang L, Chong GT, Nuckolls F, Giangrande P, Wright FA, Field SJ, Greenberg ME, Orkin S, Nevins JR, Robinson ML, Leone G. The E2F1-3 transcription factors are essential for cellular proliferation. Nature 2001; 414:457-62. [PMID: 11719808 DOI: 10.1038/35106593] [Citation(s) in RCA: 482] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The retinoblastoma tumour suppressor (Rb) pathway is believed to have a critical role in the control of cellular proliferation by regulating E2F activities. E2F1, E2F2 and E2F3 belong to a subclass of E2F factors thought to act as transcriptional activators important for progression through the G1/S transition. Here we show, by taking a conditional gene targeting approach, that the combined loss of these three E2F factors severely affects E2F target expression and completely abolishes the ability of mouse embryonic fibroblasts to enter S phase, progress through mitosis and proliferate. Loss of E2F function results in an elevation of p21Cip1 protein, leading to a decrease in cyclin-dependent kinase activity and Rb phosphorylation. These findings suggest a function for this subclass of E2F transcriptional activators in a positive feedback loop, through down-modulation of p21Cip1, that leads to the inactivation of Rb-dependent repression and S phase entry. By targeting the entire subclass of E2F transcriptional activators we provide direct genetic evidence for their essential role in cell cycle progression, proliferation and development.
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Affiliation(s)
- L Wu
- Division of Human Cancer Genetics, Department of Molecular Virology, Immunology and Medical Genetics, and Department of Molecular Genetics, The Ohio State University, Columbus, Ohio 43210, USA
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Abstract
Aberrant expression of developmentally silenced genes, characteristic of tumor cells and regenerating tissue, is highly correlated with increased cell proliferation. By modeling this process in vitro in synthetic nuclei, we find that DNA replication leads to deregulation of established developmental expression patterns. Chromatin assembly in the presence of adult mouse liver nuclear extract mediates developmental stage-specific silencing of the tumor marker gene alpha-fetoprotein (AFP). Replication of silenced AFP chromatin in synthetic nuclei depletes sequence-specific transcription repressors, thereby disrupting developmentally regulated repression. Hepatoma-derived factors can target partial derepression of AFP, but full transcription activation requires DNA replication. Thus, unscheduled entry into S phase directly mediates activation of a developmentally silenced gene by (i) depleting developmental stage-specific transcription repressors and (ii) facilitating binding of transactivators.
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Affiliation(s)
- A J Crowe
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267-0524, USA
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Crowe AJ, Sang L, Li KK, Lee KC, Spear BT, Barton MC. Hepatocyte nuclear factor 3 relieves chromatin-mediated repression of the alpha-fetoprotein gene. J Biol Chem 1999; 274:25113-20. [PMID: 10455192 DOI: 10.1074/jbc.274.35.25113] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The alpha-fetoprotein gene (AFP) is tightly regulated at the tissue-specific level, with expression confined to endoderm-derived cells. We have reconstituted AFP transcription on chromatin-assembled DNA templates in vitro. Our studies show that chromatin assembly is essential for hepatic-specific expression of the AFP gene. While nucleosome-free AFP DNA is robustly transcribed in vitro by both cervical (HeLa) and hepatocellular (HepG2) carcinoma extracts, the general transcription factors and transactivators present in HeLa extract cannot relieve chromatin-mediated repression of AFP. In contrast, preincubation with either HepG2 extract or HeLa extract supplemented with recombinant hepatocyte nuclear factor 3 alpha (HNF3alpha), a hepatic-enriched factor expressed very early during liver development, is sufficient to confer transcriptional activation on a chromatin-repressed AFP template. Transient transfection studies illustrate that HNF3alpha can activate AFP expression in a non-liver cellular environment, confirming a pivotal role for HNF3alpha in establishing hepatic-specific gene expression. Restriction enzyme accessibility assays reveal that HNF3alpha promotes the assembly of an open chromatin structure at the AFP promoter. Combined, these functional and structural data suggest that chromatin assembly establishes a barrier to block inappropriate expression of AFP in non-hepatic tissues and that tissue-specific factors, such as HNF3alpha, are required to alleviate the chromatin-mediated repression.
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Affiliation(s)
- A J Crowe
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267-0524, USA
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