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Gong Z, Xue L, Vlantis AC, van Hasselt CA, Chan JYK, Fang J, Wang R, Yang Y, Li D, Zeng X, Tong MCF, Chen GG. Brusatol attenuated proliferation and invasion induced by KRAS in differentiated thyroid cancer through inhibiting Nrf2. J Endocrinol Invest 2024; 47:1271-1280. [PMID: 38062319 DOI: 10.1007/s40618-023-02248-4] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/13/2023] [Indexed: 04/23/2024]
Abstract
BACKGROUND Poorly differentiated thyroid cancer (PDTC) and anaplastic thyroid cancer (ATC) can be developed from differentiated thyroid cancer, and this dedifferentiated transformation leads to poor prognosis and high mortality. The role of Nrf2 in the dedifferentiation of differentiated thyroid cancer (DTC) induced by KRAS remains unclear. METHODS AND MATERIALS In this study, two DTC cell lines, BCPAP and WRO, were used to evaluate the function of Nrf2 in the dedifferentiation caused by wild-type KRAS (KRAS-WT) and G12V point mutation KRAS (KRAS-G12V). RESULTS The overexpression of KRAS-WT and KRAS-G12V increased the proliferative and invasive ability of BCPAP and WRO cells. Aggressive morphology was observed in KRAS-WT and KRAS-G12V overexpressed WRO cells. These results suggested that overexpression of KRAS-WT or KRAS-G12V may induce dedifferentiation in DTC cells. The expression of Nrf2 was increased by KRAS-WT and KRAS-G12V in DTC cells. In addition, compared with normal thyroid tissues, the expression of Nrf2 protein was considerably higher in thyroid cancer tissues on immunohistochemistry (IHC) staining, and the increased expression of Nrf2 indicated a poor prognosis of thyroid cancer. These results indicated that Nrf2 is the KRAS downstream molecule in thyroid cancer. Functional studies showed that the Nrf2 inhibitor Brusatol counteracted the proliferative and invasive abilities induced by KRAS-WT and KRAS-G12V in BCPAP and WRO cells. In addition, the xenograft assay further confirmed that Brusatol inhibits tumor growth induced by KRAS-WT and KRAS-G12V. CONCLUSION Collectively, this study suggests that Nrf2 could be a promising therapeutic target in KRAS-mediated dedifferentiation of thyroid cancer.
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Affiliation(s)
- Z Gong
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - L Xue
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - A C Vlantis
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - C A van Hasselt
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - J Y K Chan
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - J Fang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, China
| | - R Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, China
| | - Y Yang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, China
| | - D Li
- Shenzhen Key Laboratory of ENT, Institute of ENT and Longgang ENT Hospital, Shenzhen, Guangdong, China
| | - X Zeng
- Shenzhen Key Laboratory of ENT, Institute of ENT and Longgang ENT Hospital, Shenzhen, Guangdong, China
| | - M C F Tong
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
| | - G G Chen
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
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Tang W, Hu Y, Tu K, Gong Z, Zhu M, Yang T, Sarwar A, Dai B, Zhang D, Zhan Y, Zhang Y. Targeting Trop2 by Bruceine D suppresses breast cancer metastasis by blocking Trop2/β-catenin positive feedback loop. J Adv Res 2024; 58:193-210. [PMID: 37271476 PMCID: PMC10982870 DOI: 10.1016/j.jare.2023.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 02/15/2023] [Revised: 05/28/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023] Open
Abstract
INTRODUCTION Tumor-associated calcium signal transducer 2 (Trop2) has been used as a transport gate for cytotoxic agents into cells in antibody-drug conjugate designs because of its expression in a wide range of solid tumors. However, the specific role of Trop2 itself in breast cancer progression remains unclear and small molecules targeting Trop2 have not yet been reported. OBJECTIVES To screen small molecules targeting Trop2, and to reveal its pharmacological effects and the molecular mechanisms of action. METHODS Small molecule targeting Trop2 was identified by cell membrane chromatography, and validated by cellular thermal shift assay and point mutation analyses. We investigated the pharmacological effects of Trop2 inhibitor using RNA-seq, human foreskin fibroblast (HFF)-derived extracellular matrix (ECM), Matrigel drop invasion assays, colony-forming assay, xenograft tumor model, 4T1 orthotopic metastasis model and 4T1 experimental metastasis model. The molecular mechanism was determined using immunoprecipitation, mass spectrometry, immunofluorescence, immunohistochemistry and Western blotting. RESULTS Here we identified Bruceine D (BD) as the inhibitor of Trop2, and demonstrated anti-metastasis effects of BD in breast cancer. Notably, Lys307 and Glu310 residues of Trop2 acted as critical sites for BD binding. Mechanistically, BD suppressed Trop2-induced cancer metastasis by blocking the formation of Trop2/β-catenin positive loop, in which the Trop2/β-catenin complex prevented β-catenin from being degraded via the ubiquitin-proteosome pathway. Destabilized β-catenin caused by BD reduced nucleus translocation, leading to the reduction of transcription of Trop2, the reversal of epithelial-mesenchymal transition (EMT) process, and the inhibition of ECM remodeling, further inhibiting cancer metastasis. Additionally, the inhibitory effects of BD on lung metastatic colonization and the beneficial effects of BD on prolongation of survival were validated in 4T1 experimental metastasis model. CONCLUSIONS These results support the tumor-promoting role of Trop2 in breast cancer by stabilizing β-catenin in Trop2/β-catenin positive loop, and suggest Bruceine D as a promising candidate for Trop2 inhibition.
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Affiliation(s)
- Wenjuan Tang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Kaihui Tu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Tianfeng Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Ammar Sarwar
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Dongdong Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China
| | - Yingzhuan Zhan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China.
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, China.
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Liu H, Duan J, Zeng P, Shi M, Zeng J, Chen S, Gong Z, Chen Z, Qin J, Chen Z. Intelligently Quantifying the Entire Irregular Dental Structure. J Dent Res 2024; 103:378-387. [PMID: 38372132 DOI: 10.1177/00220345241226871] [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] [Indexed: 02/20/2024] Open
Abstract
Quantitative analysis of irregular anatomical structures is crucial in oral medicine, but clinicians often typically measure only several representative indicators within the structure as references. Deep learning semantic segmentation offers the potential for entire quantitative analysis. However, challenges persist, including segmentation difficulties due to unclear boundaries and acquiring measurement landmarks for clinical needs in entire quantitative analysis. Taking the palatal alveolar bone as an example, we proposed an artificial intelligence measurement tool for the entire quantitative analysis of irregular dental structures. To expand the applicability, we have included lightweight networks with fewer parameters and lower computational demands. Our approach finally used the lightweight model LU-Net, addressing segmentation challenges caused by unclear boundaries through a compensation module. Additional enamel segmentation was conducted to establish a measurement coordinate system. Ultimately, we presented the entire quantitative information within the structure in a manner that meets clinical needs. The tool achieved excellent segmentation results, manifested by high Dice coefficients (0.934 and 0.949), intersection over union (0.888 and 0.907), and area under the curve (0.943 and 0.949) for palatal alveolar bone and enamel in the test set. In subsequent measurements, the tool visualizes the quantitative information within the target structure by scatter plots. When comparing the measurements against representative indicators, the tool's measurement results show no statistically significant difference from the ground truth, with small mean absolute error, root mean squared error, and errors interval. Bland-Altman plots and intraclass correlation coefficients indicate the satisfactory agreement compared with manual measurements. We proposed a novel intelligent approach to address the entire quantitative analysis of irregular image structures in the clinical setting. This contributes to enabling clinicians to swiftly and comprehensively grasp structural features, facilitating the design of more personalized treatment plans for different patients, enhancing clinical efficiency and treatment success rates in turn.
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Affiliation(s)
- H Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - J Duan
- State Key Laboratory of Environmental Adaptability for Industrial Products, National Electric Apparatus Research Institute Co., Ltd, Guangzhou, Guangdong, China
| | - P Zeng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - M Shi
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - J Zeng
- School of Computer Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - S Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - Z Gong
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - Z Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
| | - J Qin
- State Key Laboratory of Environmental Adaptability for Industrial Products, National Electric Apparatus Research Institute Co., Ltd, Guangzhou, Guangdong, China
| | - Z Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou, Guangdong, China
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Swinkels PJM, Sinaasappel R, Gong Z, Sacanna S, Meyer WV, Sciortino F, Schall P. Networks of Limited-Valency Patchy Particles. Phys Rev Lett 2024; 132:078203. [PMID: 38427857 DOI: 10.1103/physrevlett.132.078203] [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] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/27/2023] [Accepted: 01/17/2024] [Indexed: 03/03/2024]
Abstract
Equilibrium gels provide physically attractive counterparts of nonequilibrium gels, allowing statistical understanding and design of the equilibrium gel structure. Here, we assemble two-dimensional equilibrium gels from limited-valency "patchy" colloidal particles and follow their evolution at the particle scale to elucidate cluster-size distributions and free energies. By finely adjusting the patch attraction with critical Casimir forces, we let a mixture of two-valent and pseudo-three-valent patchy particles approach the percolated network state through a set of equilibrium states. Comparing this equilibrium route with a deep quench, we find that both routes approach the percolated state via the same equilibrium states, revealing that the network topology is uniquely set by the particle bond angles, independent of the formation history. The limited-valency system follows percolation theory remarkably well, approaching the percolation point with the expected universal exponents.
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Affiliation(s)
- P J M Swinkels
- Institute of Physics, University of Amsterdam, 1098XH Amsterdam, The Netherlands
| | - R Sinaasappel
- Institute of Physics, University of Amsterdam, 1098XH Amsterdam, The Netherlands
| | - Z Gong
- Molecular Design Institute, Department of Chemistry, New York University, New York, NY 10003-6688, USA
| | - S Sacanna
- Molecular Design Institute, Department of Chemistry, New York University, New York, NY 10003-6688, USA
| | - W V Meyer
- Universities Space Research Association, with GEARS, NASA Glenn Research Center, 2001 Aerospace Parkway, Brook Park, Ohio 44152, USA
| | | | - P Schall
- Institute of Physics, University of Amsterdam, 1098XH Amsterdam, The Netherlands
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Yang T, Yu R, Cheng C, Huo J, Gong Z, Cao H, Hu Y, Dai B, Zhang Y. Cantharidin induces apoptosis of human triple negative breast cancer cells through mir-607-mediated downregulation of EGFR. J Transl Med 2023; 21:597. [PMID: 37670360 PMCID: PMC10481602 DOI: 10.1186/s12967-023-04483-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 08/30/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Triple negative breast cancer (TNBC) is a major subtype of breast cancer, with limited therapeutic drugs in clinical. Epidermal growth factor receptor (EGFR) is reported to be overexpressed in various TNBC cells. Cantharidin is an effective ingredient in many clinical traditional Chinese medicine preparations, such as Delisheng injection, Aidi injection, Disodium cantharidinate and vitamin B6 injection. Previous studies showed that cantharidin had satisfactory pharmacological activity on a variety of tumors. In this study, we aimed to study the therapeutic potential of cantharidin for TNBC treatment by targeting EGFR, and expound its novel regulator miR-607. METHODS The effect of cantharidin on breast cancer in vivo was evaluated by 4T1 mice model. Then the effects of cantharidin on TNBC cells was assessed by the MTT, colony formation, and AnnexinV-PE/7AAD staining. Cantharidin acts on EGFR were verified using the cell membrane chromatography, RT-PCR, Western blotting, MTT, and so on. Mechanistic studies were explored by dual-luciferase report assay, RT-PCR, western blotting, and immunofluorescence staining assay. RESULTS Cantharidin inhibited TNBC cell growth and induce apoptosis by targeting EGFR. miR-607 was a novel EGFR regulator and exhibited suppressive functions on TNBC cell behaviors. Mechanistic study showed that cantharidin blocked the downstream PI3K/AKT/mTOR and ERK/MAPK signaling pathway. CONCLUSION Our results revealed that cantharidin may be served as a potential candidate for TNBC treatment by miR-607-mediated downregulation of EGFR.
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Affiliation(s)
- Tianfeng Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Runze Yu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Cheng Cheng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Jian Huo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Hanbing Cao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China
| | - Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China.
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China.
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, Shaanxi, People's Republic of China.
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, People's Republic of China.
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Dai B, Cao H, Hu Y, Gong Z, Huang X, Chen Y, Liu F, Peng X, Zhang Y, Lei X. Role of NLRP3 inflammasome activation in HCC cell progression. Heliyon 2023; 9:e19542. [PMID: 37681160 PMCID: PMC10481302 DOI: 10.1016/j.heliyon.2023.e19542] [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: 04/07/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a globally prevalent and fatal malignancy worldwide, and identifying therapeutic strategies is time-consuming. Numerous reports have suggested the involvement of the NLRP3 inflammasome in the progression of various cancers. However, the detailed mechanisms underlying the role of NLRP3 inflammasome in HCC progression remain unclear. In this study, we observed low expression levels of the NLRP3 inflammasome in a subset of HCC cells. Furthermore, we demonstrated that the NLRP3 inflammasome can be activated by LPS + ATP through the nuclear factor kappa B signaling pathway, as confirmed by western blotting and immunofluorescence staining. To assess the impact of NLRP3 inflammasome activation on HCC cell behavior, we employed Edu staining, cell cycle assay, Annexin V/PI staining, and wound healing assay. Our results revealed that NLRP3 inflammasome activation inhibited the proliferation of Bel-7402 and SMMC-7721 cells, arrested the cell cycle at the G1 phase, and suppressed cell migration, while apoptosis remained unaffected. In summary, our findings suggest that targeting the NLRP3 inflammasome could have therapeutic potential for HCC.
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Affiliation(s)
- Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Hanbing Cao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Xiaoyue Huang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Yanbin Chen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, PR China
- Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Feng Liu
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, PR China
- Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Xiujuan Peng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, PR China
- Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, PR China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, PR China
| | - Xinjun Lei
- Department of Cardiology, First affiliated hospital, Xi'an Jiaotong University, Xi'an 710061, PR China
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Dai B, Cao H, Hu Y, Wang X, Huang X, Su X, Ma W, Chen Y, Peng X, Gong Z, Liu F, Zhang Y. Identification and analysis of anti-tumor effective substances in Yangzheng Mixture. Biomed Chromatogr 2023; 37:e5692. [PMID: 37387456 DOI: 10.1002/bmc.5692] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023]
Abstract
Yangzheng Mixture is a traditional Chinese medicine used in clinical practice as an adjuvant therapy for tumors. However, little is known about its active components in tumor treatment. The purpose of this study was to explore the potential anti-tumor components of Yangzheng Mixture to better promote its clinical application. Using LC-MS/MS, 43 components were detected in concentrated Yangzheng Mixture. Six components, comprising astragaloside, calycosin, formononetin, isoquercitrin, ononin, and calycosin-7-O-β-D-glucoside, were identified in rat plasma. The cancer cell absorption assay showed that the intracellular concentration of four components, calycosin, calycosin-7-O-β-D-glucoside, formononetin, and ononin, increased with extended incubation time and demonstrated potential anti-tumor effects. The MTT assay results confirmed that Yangzheng Mixture inhibited different tumor cells proliferation. Additionally, the colony formation assay, flow cytometry analysis and wound healing displayed that Yangzheng Mixture and a combination of four components could inhibit colony formation, arrest the cell cycle and impair cell migration of tumor cells, including HCT-116, MHCC-97L, MCF-7 and NCI-H1299. In summary, our study highlighted the plausible application of Yangzheng Mixture as a potential adjuvant treatment for tumors. Furthermore, it identified effective anti-tumor components and provided evidences for the further clinical application of Yangzheng Mixture.
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Affiliation(s)
- Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Hanbing Cao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Xuemei Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Xiaoyue Huang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Xinyue Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Weina Ma
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Yanbin Chen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an, China
| | - Xiujuan Peng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- Shaanxi Institute of International Trade & Commerce, Xianyang, China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Feng Liu
- Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an, China
- Shaanxi Institute of International Trade & Commerce, Xianyang, China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
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Zhu M, Tang X, Zhu Z, Gong Z, Tang W, Hu Y, Cheng C, Wang H, Sarwar A, Chen Y, Liu F, Huo J, Wang X, Zhang Y. STING activation in macrophages by vanillic acid exhibits antineoplastic potential. Biochem Pharmacol 2023; 213:115618. [PMID: 37211172 DOI: 10.1016/j.bcp.2023.115618] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 02/24/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
The host stimulator of interferon genes (STING) signaling pathway is a major innate immune sensing pathway, and the stimulation of this pathway within antigen-presenting cells shows promise in targeting immune-suppressed tumors. Macrophages resident in tumors exhibit anti-inflammatory properties and enhance tumor growth and development. Polarizing such macrophages towards a pro-inflammatory phenotype is an effective strategy for tumor suppression. In the present study, we observed that the STING pathway was inactivated in breast and lung carcinomas, and a positive correlation existed between STING and macrophage markers in these tumors. We found that vanillic acid (VA) could stimulate the STING/TBK1/IRF3 pathway. VA mediated the production of type I IFN and promoted macrophage polarization into the M1 phenotype; this activity was dependent on STING activation. A direct-contact co-culture model and a transwell co-culture model revealed that macrophages with VA-induced STING activation exhibited anti-proliferative effects on SKBR3 and H1299 cells, although a STING antagonist and M2 macrophage-related cytokines alleviated this anti-proliferative effect. Further investigation indicated that phagocytosis and apoptosis-inducing effects were the major mediators of the anti-tumor effect of VA-treated macrophages. Mechanistically, VA promoted the polarization of macrophages to a M1 phenotype via IL-6R/JAK signaling, resulting in enhanced phagocytosis and apoptosis-induction effects. Additionally, STING activation-induced IFNβ production also participated in the apoptosis mediated by VA-treated macrophage in SKBR3 and H1299 cells. Mouse models with 4 T1 tumors confirmed the anti-tumor properties of VA in vivo and revealed the infiltration of VA-induced cytotoxic T cells into the tumors. These data suggest that VA is an effective agonist of STING and provides a new perspective for cancer immunotherapy.
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Affiliation(s)
- Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiaoyu Tang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Zeren Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Wenjuan Tang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Cheng Cheng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Hongying Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Ammar Sarwar
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yanbin Chen
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, China; Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Feng Liu
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, China; Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Jian Huo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xuemei Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 710061, China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an Jiaotong University, Xi'an 710061, China.
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Huang H, Gong Z. Characterization and differentiation of pollen lipidomes and proteomes from different intrafloral stamens in heterantherous Senna bicapsularis. Plant Biol (Stuttg) 2022; 24:998-1009. [PMID: 35880492 DOI: 10.1111/plb.13457] [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] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Numerous compounds in pollen can affect the foraging decision-making of bees. Clarification of phytochemical components and identification of key substances for bee foraging preference in pollen are essential steps for apiculture and developing a conservation strategy. Senna bicapsularis, a heterantherous plant that possesses three different stamen types in the same flower, among which bees forage selectively, provides us with an ideal research model for identification of potential substances of bee foraging preference. The lipid and protein compositions of pollen from the anthers of different stamens of S. bicapsularis were investigated and compared. The polyunsaturated fatty acids (PUFAs) and monounsaturated FAs (MUFAs) were highest among lipid molecules in pollen from short (S) stamens than from long (L) and medium (M) stamens. This result is consistent with the FA content measurement, showing the highest FAs and UFAs content in S pollen, especially α-linolenic acid. We inferred that α-linolenic acid might be one of the key substances for bee foraging preference in pollen. Moreover, proteomic analysis showed that several differentially expressed proteins involved in lipid biosynthesis were highly accumulated in S pollen, such as choline kinase 2, 3-oxoacyl-ACP synthase-like protein and choline/ethanolamine phosphotransferase 1, in line with the highest FA content of S pollen. Additionally, DEPs involved in 'starch and sucrose metabolism', 'phenylpropanoid biosynthesis' and 'cyanoamino acid metabolism' were more represented in S compared with L and M pollen. The study suggests that differences in proteomic and lipidomic profiling among the three different stamen types might affect foraging decision-making of bumblebees.
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Affiliation(s)
- H Huang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, China
| | - Z Gong
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, China
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10
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Dai B, Fan M, Huang X, Gong Z, Cao H, Hu Y, Su Q, Yang T, Chen Y, Peng X, Liu F, Zhang Y. Shuanghua decoction exerts anticancer activity by activating NLRP3 inflammasome via ROS and inhibiting NF-κB signaling in hepatocellular carcinoma cells. Phytomedicine 2022; 103:154249. [PMID: 35716538 DOI: 10.1016/j.phymed.2022.154249] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 01/17/2022] [Revised: 05/19/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a major subtype of liver cancer, with a high mortality rate, and close relation to chronic hepatitis. The components of the NLRP3 inflammasome are poorly expressed or even lost in HCC. Downregulation of the NLRP3 inflammasome expression significantly affects the clinical stages and pathological grade of HCC. According to previous research, Shuanghua decoction (SHD), a traditional folk prescription, has an inhibitory effect on nasopharyngeal cancer. PURPOSE This study aimed to reveal the therapeutic potential of the traditional folk recipe, SHD and its demolition recipe for HCC, and to explore the underlying mechanism. METHODS The effect of SHD and its demolition recipe on HCC cell biological behaviors was assessed using the MTT assay, colony formation, LDH release assay, KFluor-Edu staining, annexin V-FITC/PI staining assay, Hoechst staining, wound-healing assay, transwell assay, reactive oxygen species (ROS) release assay, HPLC, nude mice model, HE staining, IHC, western blot, and immunofluorescence staining in vitro and in vivo. RESULTS SHD was found to inhibit HCC, and Oldenlandia and OP (Oldenlandia: Prunella spike = 2.5:1) were identified as the main ingredients that inhibited the proliferation and migration of HCC cells via the activation of the ROS-mediated NLRP3 inflammasome and inhibition of the NF-κB signaling pathway in vitro and in vivo. CONCLUSION Overall, Chinese medicine theory and pharmacology research revealed that SHD, Oldenlandia and OP may be promising traditional Chinese medicine for the treatment of HCC.
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Affiliation(s)
- Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Mengying Fan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Xiaoyue Huang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Hanbing Cao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Yu Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Qi Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Tianfeng Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China
| | - Yanbin Chen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; Shaanxi Institute of International Trade & Commerce, Xianyang 712046, P.R. China; Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Xiujuan Peng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; Shaanxi Institute of International Trade & Commerce, Xianyang 712046, P.R. China
| | - Feng Liu
- Shaanxi Institute of International Trade & Commerce, Xianyang 712046, P.R. China; Shaanxi Buchang Pharmaceutical Co. Ltd, Xi'an 710075, China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, 710061, P. R. China.
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Gong Z, Yuan Z, Niu Y, Zhang X, Geng J, Wei S. CARBONATED BEVERAGES AFFECT LEVELS OF ANDROGEN RECEPTOR AND TESTOSTERONE SECRETION IN MICE. Acta Endocrinol (Buchar) 2022; 18:301-305. [PMID: 36699165 PMCID: PMC9867816 DOI: 10.4183/aeb.2022.301] [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] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objectives This work aimed to study the influences of carbonated beverages (CBs) on the testis growth and the expression levels of androgen receptor (AR) of mice. Methods Two experimental groups of 30 mice each PEP-1 and PEP-2 drank 50% and 100% Pepsi-Cola, respectively for 15 days. Other 2 experimental groups of 30 mice each COC-1 and COC-2 drank 50% and 100% Coca-Cola, respectively for 15 days. The control group (CG) of 30 mice drank water. Bilateral testes were harvested aseptically on days 0, 5, 7, 10, 13 and 15. Real-time PCR and Western blot were implemented to detect levels of androgen receptor (AR) mRNA and protein in testis tissues. Results Testes masses of PEP-2, COC-1 and COC-2 were greater than those of PEP-1 and CG (P < 0.05). On day 15, testis longitudinal diameter (TLD) of CBs-treated mice was increased as compared to CG. TLD, testes transverse diameters (TTD) and AR proteins levels of PEP-2 and COC-2 were increased in comparison with CG (P<0.05). Serum testosterone concentrations of PEP-2 were higher than that of COC-1 and CG (P < 0.05). Levels of AR mRNAs of four CBs-treated mice were increased by 60.18%, 67.26%, 65.93% and 78.76%. Conclusions A high concentration of Coca-Cola and Pepsi-Cola could raise TLD and TDD, enhance testosterone secretion, and increase serum EGF concentrations.
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Affiliation(s)
- Z. Gong
- Northwest Minzu University, Affiliated Hospital, Lanzhou, China
| | - Z. Yuan
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - Y. Niu
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - X. Zhang
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - J. Geng
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - S. Wei
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
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12
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Lu Z, Gong Z, Wang H, Zhu M, Jiang H, Cao Y. P-382 Decrease of serum estradiol prior to human chorionic gonadotrophin administration have an impact on live birth in IVF/ICSI cycles. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.360] [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: 11/14/2022] Open
Abstract
Abstract
Study question
Whether decrease of serum estradiol prior to human chorionic gonadotrophin administration have an impact on live birth in IVF/ICSI cycles?
Summary answer
The E2 change before the day of hCG administration had significant correlation with live birth. The live birth rate decreased with decreasing serum E2 level.
What is known already
The objective of this study was to assess the effects of a decrease of estradiol (E2) levels on the day of human chorionic gonadotrophin (hCG) administration on in vitro fertilization /intracytoplasmic sperm injection (IVF/ICSI) outcomes, including cycles with long, antagonist and micro stimulus protocols.
Study design, size, duration
In this retrospective cohort study, 1303 patients who received IVF/ICSI non-donor treatment were identified. Patients were divided into two groups according to live birth and the characteristics of IVF/ICSI cycles were compared between groups, including baseline infertility parameters, ovarian stimulation characteristics and embryo laboratory manipulation parameters.
Participants/materials, setting, methods
In this retrospective cohort study, 1303 patients who received IVF/ICSI non-donor treatment were identified. Patients were divided into two groups according to live birth and the characteristics of IVF/ICSI cycles were compared between groups, including baseline infertility parameters, ovarian stimulation characteristics and embryo laboratory manipulation parameters. The multivariate logistic regression model was performed to adjust potential confounders and assess correlation between E2 dynamics before hCG administration and live birth.
Main results and the role of chance
Our results revealed that patients without live birth had higher age (32.13 ± 4.33 vs. 30.21 ± 3.71, P < 0.001) and pervious miscarriages (0.57 ± 0.95 vs. 0.46 ± 0.83, P = 0.0295), while had lower number of oocytes retrieved (8.95 ± 4.69 vs. 12.36 ± 5.54, P < 0.001), day of hCG E2 (8269.53 ± 4104.22 vs. 9580.71 ± 3534.11, P < 0.001) and endometrium thickness (10.37 ± 3.66 vs. 11.50 ± 3.40, P < 0.001) compared with patients with live birth. Additionally, the multivariate logistic regression analysis displayed significant impact of serum E2 change on the live birth, and the achievement of live birth [OR (95%CI) 0.81 (0.71, 0.92), P = 0.001] decreased with the decreasing level of serum E2 before hCG trigger day. Estradiol stratification analyses displayed the OR and 95% CI for the association between △E2 and live birth among patients with different levels of estradiol decline (<25%, 25%–50%, 50%–75%, >75%). Compared with the <25% decline and 25%–50% decline groups, the ORs of 50%–75% and >75% decline groups were 1.66 (95% CI: 1.12-2.45, P = 0.012) and 2.00 (95% CI: 1.39-2.89, P < 0.001), respectively, after adjusting potential confounders.
Limitations, reasons for caution
There was concealment of randomization and blinding of outcome assessments reducing the risk of selection and measurement bias.
Wider implications of the findings
In summary, the E2 change before the day of hCG administration had significant correlation with live birth, and the live birth decreased with the decreasing level of serum E2 before hCG trigger day. The patients with a greater decline in the E2 level more likely to had poor clinical outcomes.
Trial registration number
Chi CTR1900026088
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Affiliation(s)
- Z Lu
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
| | - Z Gong
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
| | - H Wang
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
| | - M Zhu
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
| | - H Jiang
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
| | - Y Cao
- The First Affiliated Hospital of Anhui Medical University, Reproductive Medicine Center- Department of Obstetrics and Gynecology , Hefei, China
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Ma W, Zhu M, Wang B, Gong Z, Du X, Yang T, Shi X, Dai B, Zhan Y, Zhang D, Ji Y, Wang Y, Li S, Zhang Y. Vandetanib drives growth arrest and promotes sensitivity to imatinib in chronic myeloid leukemia by targeting ephrin type-B receptor 4. Mol Oncol 2022; 16:2747-2765. [PMID: 35689424 PMCID: PMC9297786 DOI: 10.1002/1878-0261.13270] [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: 08/23/2021] [Revised: 05/05/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022] Open
Abstract
The oncogenic role of ephrin type‐B receptor 4 (EPHB4) has been reported in many types of tumors, including chronic myeloid leukemia (CML). Here, we found that CML patients have a higher EPHB4 expression level than healthy subjects. EPHB4 knockdown inhibited growth of K562 cells (a human immortalized myelogenous leukemia cell line). In addition, transient transfection of EPHB4 siRNA led to sensitization to imatinib. These growth defects could be fully rescued by EPHB4 transfection. To identify an EPHB4‐specific inhibitor with the potential of rapid translation into the clinic, a pool of clinical compounds was screened and vandetanib was found to be most sensitive to K562 cells, which express a high level of EPHB4. Vandetanib mainly acts on the intracellular tyrosine kinase domain and interacts stably with a hydrophobic pocket. Furthermore, vandetanib downregulated EPHB4 protein via the ubiquitin‐proteasome pathway and inhibited PI3K/AKT and MAPK/ERK signaling pathways in K562 cells. Vandetanib alone significantly inhibited tumor growth in a K562 xenograft model. Furthermore, the combination of vandetanib and imatinib exhibited enhanced and synergistic growth inhibition against imatinib‐resistant K562 cells in vitro and in vivo. These findings suggest that vandetanib drives growth arrest and overcomes the resistance to imatinib in CML via targeting EPHB4.
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Affiliation(s)
- Weina Ma
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Bo Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Xia Du
- Institute of Traditional Chinese Medicine, Shaanxi Academy of Traditional Chinese Medicine, Xi'an, China
| | - Tianfeng Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Xianpeng Shi
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Bingling Dai
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Yingzhuan Zhan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Dongdong Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Yanhong Ji
- School of Basic Medical Sciences, Xi'an Jiaotong University, China
| | - Yang Wang
- School of Basic Medical Sciences, Xi'an Jiaotong University, China
| | - Song Li
- Department of Pharmaceutical Sciences, School of Pharmacy, Center for Pharmacogenetics, University of Pittsburgh, PA, USA
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
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Gong Z, Da W, Tian Y, Zhao R, Qiu S, Wu Q, Wen K, Shen L, Zhou R, Tao L, Zhu Y. Exogenous melatonin prevents type 1 diabetes mellitus-induced bone loss, probably by inhibiting senescence. Osteoporos Int 2022; 33:453-466. [PMID: 34519833 PMCID: PMC8813725 DOI: 10.1007/s00198-021-06061-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 06/30/2021] [Indexed: 12/31/2022]
Abstract
UNLABELLED Exogenous melatonin inhibited the senescence of preosteoblast cells in type 1 diabetic (T1D) mice and those cultured in high glucose (HG) by multiple regulations. Exogenous melatonin had a protective effect on diabetic osteoporosis, which may depend on the inhibition of senescence. INTRODUCTION Senescence is thought to play an important role in the pathophysiological mechanisms underlying diabetic bone loss. Increasing evidence has shown that melatonin exerts anti-senescence effects. In this study, we investigated whether melatonin can inhibit senescence and prevent diabetic bone loss. METHODS C57BL/6 mice received a single intraperitoneal injection of 160 mg/kg streptozotocin, followed by the oral administration of melatonin or vehicle for 2 months. Then, tissues were harvested and subsequently examined. MC3T3-E1 cells were cultured under HG conditions for 7 days and then treated with melatonin or not for 24 h. Sirt1-specific siRNAs and MT1- or MT2-specific shRNA plasmids were transfected into MC3T3-E1 cells for mechanistic study. RESULTS The total protein extracted from mouse femurs revealed that melatonin prevented senescence in T1D mice. The micro-CT results indicated that melatonin prevented bone loss in T1D mice. Cellular experiments indicated that melatonin administration prevented HG-induced senescence, whereas knockdown of the melatonin receptors MT1 or MT2 abolished these effects. Sirt1 expression was upregulated by melatonin administration but significantly reduced after MT1 or MT2 was knocked down. Knockdown of Sirt1 blocked the anti-senescence effects of melatonin. Additionally, melatonin promoted the expression of CDK2, CDK4, and CyclinD1, while knockdown of MT1 or MT2 abolished these effects. Furthermore, melatonin increased the expression of the polycomb repressive complex (PRC), but knockdown of MT1 or MT2 abolished these effects. Furthermore, melatonin increased the protein levels of Sirt1, PRC1/2 complex-, and cell cycle-related proteins. CONCLUSION This work shows that melatonin protects against T1D-induced bone loss, probably by inhibiting senescence. Targeting senescence in the investigation of diabetic osteoporosis may lead to novel discoveries.
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Affiliation(s)
- Z Gong
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - W Da
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Y Tian
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - R Zhao
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - S Qiu
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Q Wu
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - K Wen
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - L Shen
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - R Zhou
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China
| | - L Tao
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Y Zhu
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, China.
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15
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Wu G, Wang H, Zhao C, Cao C, Chai C, Huang L, Guo Y, Gong Z, Tirschwell D, Zhu C, Xia S. Large Culprit Plaque and More Intracranial Plaques Are Associated with Recurrent Stroke: A Case-Control Study Using Vessel Wall Imaging. AJNR Am J Neuroradiol 2022; 43:207-215. [PMID: 35058299 PMCID: PMC8985671 DOI: 10.3174/ajnr.a7402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/02/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND PURPOSE Intracranial atherosclerotic plaque features are potential factors associated with recurrent stroke, but previous studies only focused on a single lesion, and few studies investigated them with perfusion impairment. This study aimed to investigate the association among whole-brain plaque features, perfusion deficit, and stroke recurrence. MATERIALS AND METHODS Patients with ischemic stroke due to intracranial atherosclerosis were retrospectively collected and categorized into first-time and recurrent-stroke groups. Patients underwent high-resolution vessel wall imaging and DSC-PWI. Intracranial plaque number, culprit plaque features (such as plaque volume/burden, degree of stenosis, enhancement ratio), and perfusion deficit variables were recorded. Logistic regression analyses were performed to determine the independent factors associated with recurrent stroke. RESULTS One hundred seventy-five patients (mean age, 59 [SD, 12] years; 115 men) were included. Compared with the first-time stroke group (n = 100), the recurrent-stroke group (n = 75) had a larger culprit volume (P = .006) and showed more intracranial plaques (P < .001) and more enhanced plaques (P = .003). After we adjusted for other factors, culprit plaque volume (OR, 1.16 per 10-mm3 increase; 95% CI, 1.03-1.30; P = .015) and total plaque number (OR, 1.31; 95% CI, 1.13-1.52; P < .001) were independently associated with recurrent stroke. Combining these factors increased the area under the curve to 0.71. CONCLUSIONS Large culprit plaque and more intracranial plaques were independently associated with recurrent stroke. Performing whole-brain vessel wall imaging may help identify patients with a higher risk of recurrent stroke.
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Affiliation(s)
- G. Wu
- From The School of Medicine (G.W., H.W.), Nankai University, Tianjin, China
| | - H. Wang
- From The School of Medicine (G.W., H.W.), Nankai University, Tianjin, China
| | - C. Zhao
- Department of Radiology (C. Zhao), First Central Clinical College, Tianjin Medical University, Tianjin, China
| | - C. Cao
- Department of Radiology (C. Cao), Tianjin Huanhu Hospital, Tianjin, China
| | - C. Chai
- Department of Radiology (C. Chai, L.H., Y.G., S.X.)
| | - L. Huang
- Department of Radiology (C. Chai, L.H., Y.G., S.X.)
| | - Y. Guo
- Department of Radiology (C. Chai, L.H., Y.G., S.X.)
| | - Z. Gong
- Neurology (Z.G.), Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | | | - C. Zhu
- Radiology (C. Zhu), University of Washington, Seattle, Washington
| | - S. Xia
- Department of Radiology (C. Chai, L.H., Y.G., S.X.)
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16
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Ding L, Zhou R, Yuan Y, Yang H, Li J, Yu T, Liu C, Wang J, Li S, Gao H, Deng Z, Li N, Wang Z, Gong Z, Liu G, Xie J, Wang S, Rong Z, Deng D, Wang X, Han S, Wan W, Richter L, Huang L, Gou S, Liu Z, Yu H, Jia Y, Chen B, Dang Z, Zhang K, Li L, He X, Liu S, Di K. A 2-year locomotive exploration and scientific investigation of the lunar farside by the Yutu-2 rover. Sci Robot 2022; 7:eabj6660. [PMID: 35044796 DOI: 10.1126/scirobotics.abj6660] [Citation(s) in RCA: 5] [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: 11/02/2022]
Abstract
The lunar nearside has been investigated by many uncrewed and crewed missions, but the farside of the Moon remains poorly known. Lunar farside exploration is challenging because maneuvering rovers with efficient locomotion in harsh extraterrestrial environment is necessary to explore geological characteristics of scientific interest. Chang'E-4 mission successfully targeted the Moon's farside and deployed a teleoperated rover (Yutu-2) to explore inside the Von Kármán crater, conveying rich information regarding regolith, craters, and rocks. Here, we report mobile exploration on the lunar farside with Yutu-2 over the initial 2 years. During its journey, Yutu-2 has experienced varying degrees of mild slip and skid, indicating that the terrain is relatively flat at large scales but scattered with local gentle slopes. Cloddy soil sticking on its wheels implies a greater cohesion of the lunar soil than encountered at other lunar landing sites. Further identification results indicate that the regolith resembles dry sand and sandy loam on Earth in bearing properties, demonstrating greater bearing strength than that identified during the Apollo missions. In sharp contrast to the sparsity of rocks along the traverse route, small fresh craters with unilateral moldable ejecta are abundant, and some of them contain high-reflectance materials at the bottom, suggestive of secondary impact events. These findings hint at notable differences in the surface geology between the lunar farside and nearside. Experience gained with Yutu-2 improves the understanding of the farside of the Moon, which, in return, may lead to locomotion with improved efficiency and larger range.
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Affiliation(s)
- L Ding
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - R Zhou
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Y Yuan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Yang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - J Li
- Beijing Aerospace Control Center, Beijing 100094, China
| | - T Yu
- Beijing Aerospace Control Center, Beijing 100094, China
| | - C Liu
- Beijing Aerospace Control Center, Beijing 100094, China.,Key Laboratory of Science and Technology on Aerospace Flight Dynamics, Beijing 100094, China
| | - J Wang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Li
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Gao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Deng
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - N Li
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Wang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Gong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - G Liu
- Department of Aerospace Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada
| | - J Xie
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Wang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - Z Rong
- Beijing Aerospace Control Center, Beijing 100094, China
| | - D Deng
- Beijing Aerospace Control Center, Beijing 100094, China
| | - X Wang
- Beijing Aerospace Control Center, Beijing 100094, China.,Key Laboratory of Science and Technology on Aerospace Flight Dynamics, Beijing 100094, China
| | - S Han
- Beijing Aerospace Control Center, Beijing 100094, China
| | - W Wan
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
| | - L Richter
- Large Space Structures GmbH, Hauptstrasse 1, D-85386 Eching, Germany
| | - L Huang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - S Gou
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
| | - Z Liu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Yu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Y Jia
- China Academy of Space Technology, Beijing 100094, China
| | - B Chen
- China Academy of Space Technology, Beijing 100094, China
| | - Z Dang
- China Academy of Space Technology, Beijing 100094, China
| | - K Zhang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - L Li
- Beijing Aerospace Control Center, Beijing 100094, China
| | - X He
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Liu
- Beijing Aerospace Control Center, Beijing 100094, China
| | - K Di
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
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17
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Lin Q, Lun J, Zhang J, He X, Gong Z, Gao X, Cao H. [Gut microbiome composition in pre-adolescent children with different meat consumption patterns]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1801-1088. [PMID: 35012911 DOI: 10.12122/j.issn.1673-4254.2021.12.07] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To compare the composition of gut microbiome in pre-adolescent children with different meat consumption patterns. METHODS This study was conducted among 44 healthy school-age children (age range 8-10 years) in Shenzhen. According to the monthly intake frequency ratio of white meat and red meat, the children were divided into red-meat group (n=15), balanced group (n=16) and white-meat group (n=13). The Food Frequency Questionnaire (FFQ) was used to investigate the children's diet, and samples of morning feces were collected to study the gut microbiome. The fecal DNA was extracted and amplified, and the composition of the intestinal microbiome of the children was analyzed using Illumina Miseq high-throughput sequencing. RESULTS The children in red meat and white meat groups showed significantly lower abundance and diversity of gut microbiota than those with a balanced diet (P < 0.05). LEfSe analysis of the genus in the fecal samples showed that Escherichia-Shigella, Coprobacillus and Peptoniphilus were enriched in red-meat group and Holdemanella was enriched in the white-meat group as compared with the balanced group. In the samples of the balanced group, 31 and 25 genus (such as Laurespirillum and Rumenococcus) were significantly enriched as compared with the samples of the red-meat group and the white-meat group, respectively. Prediction of the gut microbiota KEGG pathway using PICRUSt2 suggested that compared with that in the balanced group, the gut microbiota in red-meat group had significant activation of the pathways involving lipopolysaccharide biosynthesis (P < 0.01), arachidonic acid metabolism (P < 0.01), thyroid hormone synthesis (P < 0.001), and carbohydrate digestion and absorption (P < 0.05). But compared with the white-meat group, the red-meat group showed only significant activation of the pathways of arachidonic acid metabolism (P < 0.05) and thyroid hormone synthesis (P < 0.05). CONCLUSION The preference of red meat and white meat consumption may significantly reduce the abundance and diversity of gut microbiota in pre-adolescent children. A red meat-rich diet may cause enrichment of Escherichia-Shigella and significant activation of lipopolysaccharide biosynthesis pathway, suggesting the potential benefit of a balanced diet for pre-adolescent children.
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Affiliation(s)
- Q Lin
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - J Lun
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - J Zhang
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X He
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Z Gong
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - X Gao
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - H Cao
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical Diseases Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
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18
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Zhu M, Tang X, Gong Z, Tang W, Zhang Y. TAD1822-7 induces ROS-mediated apoptosis of HER2 positive breast cancer by decreasing E-cadherin in an EphB4 dependent manner. Life Sci 2021; 285:119954. [PMID: 34520770 DOI: 10.1016/j.lfs.2021.119954] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/05/2021] [Accepted: 09/08/2021] [Indexed: 01/11/2023]
Abstract
HER2-positive breast cancer (HER2-BC) shows the over-expression of tyrosine kinase receptor EphB4 associated with poor disease prognosis. E-cadherin is found as a survival factor in multiple models of breast cancer by suppressing reactive oxygen-mediated apoptosis. This study confirmed that both HER2 and EphB4 are positively correlated with E-cadherin in HER2-BC. Inhibition of HER2 or EphB4 is discovered to induce ROS-dependent apoptosis by decreasing E-cadherin expression in SKBR3 and MDA-MB-453 cells. TAD1822-7 (TAD), a novel biphenyl urea taspine derivative, exhibits good growth inhibition, apoptosis induction and ROS accumulation effects on SKBR3 and MDA-MB-453 cells. Mechanistic investigation revealed that TAD blockades both EphB4 positive signal transduction and activation of HER2 signal transduction, thereby suppressing E-cadherin/TGF-β/p-Smad2/3 signaling axis to elicit ROS-dependent endogenous mitochondrial apoptosis. Together, these findings not only provide a new approach for HER2-BC therapy but also increase our understanding of the regulating effect of E-cadherin by HER2 and EphB4 in ROS-mediated apoptosis.
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Affiliation(s)
- Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West street, #54, Xi'an, Shaanxi Province 710061, PR China
| | - Xiaoyu Tang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West street, #54, Xi'an, Shaanxi Province 710061, PR China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West street, #54, Xi'an, Shaanxi Province 710061, PR China
| | - Wenjuan Tang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West street, #54, Xi'an, Shaanxi Province 710061, PR China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West street, #54, Xi'an, Shaanxi Province 710061, PR China.
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19
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Zeller AN, Selle M, Gong Z, Winkelmann M, Krettek C, Bundkirchen K, Neunaber C, Noack S. Osteoporosis is accompanied by reduced CD274 expression in human bone marrow-derived mesenchymal stem cells. Eur Cell Mater 2021; 41:603-615. [PMID: 34056703 DOI: 10.22203/ecm.v041a39] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Underlying pathomechanisms of osteoporosis are still not fully elucidated. Cell-based therapy approaches pose new possibilities to treat osteoporosis and its complications. The aim of this study was to quantify differences in human bone marrow-derived mesenchymal stem cells (hBMSCs) between healthy donors and those suffering from clinically manifest osteoporosis. Cell samples of seven donors for each group were selected retrospectively from the hBMSC cell bank of the Trauma Department of Hannover Medical School. Cells were evaluated for their adipogenic, osteogenic and chondrogenic differentiation potential, for their proliferation potential and expression of surface antigens. Furthermore, a RT2 Osteoporosis Profiler PCR array, as well as quantitative real-time PCR were carried out to evaluate changes in gene expression. Cultivated hBMSCs from osteoporotic donors showed significantly lower cell surface expression of CD274 (4.98 % ± 2.38 %) than those from the control group (26.03 % ± 13.39 %; p = 0.007), as assessed by flow cytometry. In osteoporotic patients, genes involved in inhibition of the anabolic WNT signalling pathway and those associated with stimulation of bone resorption were significantly upregulated. Apart from these changes, no significant differences were found for the other cell surface antigens, adipogenic, osteogenic and chondrogenic differentiation ability as well as proliferation potential. These findings supported the theory of an influence of CD274 on the regulation of bone metabolism. CD274 might be a promising target for further investigations of the pathogenesis of osteoporosis and of cell-based therapies involving MSCs.
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Affiliation(s)
- A-N Zeller
- Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover,
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20
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Swinkels PJM, Stuij SG, Gong Z, Jonas H, Ruffino N, Linden BVD, Bolhuis PG, Sacanna S, Woutersen S, Schall P. Revealing pseudorotation and ring-opening reactions in colloidal organic molecules. Nat Commun 2021; 12:2810. [PMID: 33990609 PMCID: PMC8121934 DOI: 10.1038/s41467-021-23144-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 10/13/2020] [Accepted: 04/12/2021] [Indexed: 11/16/2022] Open
Abstract
Colloids have a rich history of being used as 'big atoms' mimicking real atoms to study crystallization, gelation and the glass transition of condensed matter. Emulating the dynamics of molecules, however, has remained elusive. Recent advances in colloid chemistry allow patchy particles to be synthesized with accurate control over shape, functionality and coordination number. Here, we show that colloidal alkanes, specifically colloidal cyclopentane, assembled from tetrameric patchy particles by critical Casimir forces undergo the same chemical transformations as their atomic counterparts, allowing their dynamics to be studied in real time. We directly observe transitions between chair and twist conformations in colloidal cyclopentane, and we elucidate the interplay of bond bending strain and entropy in the molecular transition states and ring-opening reactions. These results open the door to investigate complex molecular kinetics and molecular reactions in the high-temperature classical limit, in which the colloidal analogue becomes a good model.
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Affiliation(s)
- P J M Swinkels
- Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands
| | - S G Stuij
- Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands
| | - Z Gong
- Molecular Design Institute, Department of Chemistry, New York University, New York, NY, USA
| | - H Jonas
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - N Ruffino
- Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands
| | - B van der Linden
- Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands
| | - P G Bolhuis
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - S Sacanna
- Molecular Design Institute, Department of Chemistry, New York University, New York, NY, USA
| | - S Woutersen
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - P Schall
- Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands.
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21
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Jia M, Xu Y, Shao B, Guo Z, Hu L, Pataer P, Abass K, Ling B, Gong Z. Diagnostic magnetic resonance imaging in synovial chondromatosis of the temporomandibular joint. Br J Oral Maxillofac Surg 2021; 60:140-144. [PMID: 34848098 DOI: 10.1016/j.bjoms.2021.02.024] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 10/21/2022]
Abstract
The aim of this paper was to investigate the clinical and magnetic resonance imaging (MRI) features of synovial chondromatosis (SC) of the temporomandibular joint (TMJ). Fourteen patients with SC of the TMJ were included in the study. Clinical and MRI features were analysed and divided into three types based on MRI classification: type I with loose bodies, type II with homogeneous masses, and type III with a mixture of loose bodies and homogeneous masses. All SCs occurred in the superior compartment of the TMJ. There were two patients (14%) categorised as type I, five (36%) as type II and seven (50%) as type III. Four patients (29%) had disc perforation, and nine had bone erosion; among those nine, seven (78%) had type III and two (22%) type II. Histological examination showed inflammation and calcification in the synovial membrane and, and cartilage of the hyaline type in all cases. MRI has advantages in the diagnosis of SC.
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Affiliation(s)
- M Jia
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Y Xu
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - B Shao
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Z Guo
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - L Hu
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - P Pataer
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - K Abass
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - B Ling
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Z Gong
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China.
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22
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Gong Z, Wang H, Lin Z. Glycine substitution mutation of COL5A1 in classic Ehlers-Danlos syndrome: a case report and literature review. Clin Exp Dermatol 2021; 46:987-989. [PMID: 33656776 DOI: 10.1111/ced.14568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/06/2021] [Accepted: 01/21/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Z Gong
- Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - H Wang
- Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Z Lin
- Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
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23
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Geng J, Niu Y, Wei L, Li Q, Gong Z, Wei S. Triplex qRT-PCR with specific probe for synchronously detecting Bovine parvovirus, bovine coronavirus, bovine parainfluenza virus and its applications. Pol J Vet Sci 2021; 23:481-489. [PMID: 33480488 DOI: 10.24425/pjvs.2020.134696] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Bovine parvovirus (BPV), bovine coronavirus (BCoV) and bovine parainfluenza virus (BPIV) are common etiologies causing gastrointestinal and respiratory diseases in dairy herds. However, there are few reports on the synchronous detection of BPV, BCoV and BPIV. The present article aimed to develop a quick and accurate RT-PCR assay to synchronously detect BPV, BCoV and BPIV based on their specific probes. One pair universal primers, one pair specific primers and one specific probe was designed and synthesized. After the concentrations of primer and probe and annealing temperature were strictly optimized, the specificity, sensitivity and repeatability of the established triplex probe qRT-PCR were evaluated, respectively. The results showed the recombinant plasmids of pMD18-T-BPV, pMD18-T-BCoV and pMD18-T-BPIV were 554bp, 699bp and 704bp, respectively. The optimal annealing temperature was set at 45.0°C for triplex qRT-PCR. The triplex probe qRT-PCR can only synchronously detect BPV, BCoV and BPIV. Detection sensitivities were 2.0×102, 2.0×102 and 2.0×101 copies/μL for BPV, BCoV and BPIV, being 1000-fold greater than that in the conventional PCR. Detection of clinical samples demonstrated that triplex probe qRT-PCR had a higher sensitivity and specificity. The intra-assay and inter-assay coefficient of variation were lower than 2.0%. Clinical specimens verified that the triplex qRT-PCR had a higher sensitivity and specificity than universal PCR. In conclusion, this triplex probe qRT-PCR could detect only BPV, BCoV and BPIV. Minimum detection limits were 2.0×102 copies/μL for BPV and BCoV, and 2.0×101 copies/μL for BPIV. The sensitivity of this triplex probe qRT-PCR was 1000-fold greater than that in the conventional PCR. The newly qRT-PCR could be used to monitor or differentially diagnose virus infection.
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Affiliation(s)
- J Geng
- Life Science and Engineering College, Northwest Minzu University, Lanzhou, 730030, China
| | - Y Niu
- Life Science and Engineering College, Northwest Minzu University, Lanzhou, 730030, China
| | - L Wei
- Neurology Department, Gansu Province People's Hospital, Lanzhou, 730030, China
| | - Q Li
- Life Science and Engineering College, Northwest Minzu University, Lanzhou, 730030, China
| | - Z Gong
- Hospital, Northwest Minzu University, Lanzhou, 730030, China
| | - S Wei
- Life Science and Engineering College, Northwest Minzu University, Lanzhou, 730030, China.,Biomedicine Research Center, Northwest Minzu University, Lanzhou, 730030, China
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Zhang H, Gao J, He X, Gong Z, Wan Y, Hu T, Li Y, Cao H. Lactobacillus rhamnosus GG-derived postbiotic prevents intestinal infection with enterohaemorrhagic E. coli O157: H7. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.364] [Citation(s) in RCA: 1] [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: 11/25/2022] Open
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25
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Zou J, Chen J, Gao X, Lin Q, Gong Z, Cao H. Antimicrobial effect of the drug combination memantine and VD3 on E. coli K1 by inhibiting bacterial invasion in vitro. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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26
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Li Y, Gong Z, Lin Q, Gao X, Lun J, Cao H. Inhibitory effects of Lactobacillus rhamnosus GG effector on inflammatory mediator expression through TLR4/MyD88/NF-кB signaling pathway. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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27
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Li W, Zhang H, Gong Z, Tong T, Guo W. 475P Diffusion kurtosis imaging signature in predicting the chemotherapeutic response of colorectal liver metastases: The result of the FDZL-MRinCLM study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Gong Z, Mackenroth F, Wang T, Yan XQ, Toncian T, Arefiev AV. Direct laser acceleration of electrons assisted by strong laser-driven azimuthal plasma magnetic fields. Phys Rev E 2020; 102:013206. [PMID: 32795027 DOI: 10.1103/physreve.102.013206] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
A high-intensity laser beam propagating through a dense plasma drives a strong current that robustly sustains a strong quasistatic azimuthal magnetic field. The laser field efficiently accelerates electrons in such a field that confines the transverse motion and deflects the electrons in the forward direction. Its advantage is a threshold rather than resonant behavior, accelerating electrons to high energies for sufficiently strong laser-driven currents. We study the electron dynamics via a test-electron model, specifically deriving the corresponding critical current density. We confirm the model's predictions by numerical simulations, indicating energy gains two orders of magnitude higher than achievable without the magnetic field.
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Affiliation(s)
- Z Gong
- SKLNPT, KLHEDP and CAPT, School of Physics, Peking University, Beijing 100871, China
- Center for High Energy Density Science, The University of Texas at Austin, Austin, Texas 78712, USA
| | - F Mackenroth
- Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
| | - T Wang
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
| | - X Q Yan
- SKLNPT, KLHEDP and CAPT, School of Physics, Peking University, Beijing 100871, China
| | - T Toncian
- Institute for Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf e.V., 01328 Dresden, Germany
| | - A V Arefiev
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
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Arefiev A, Gong Z, Robinson APL. Energy gain by laser-accelerated electrons in a strong magnetic field. Phys Rev E 2020; 101:043201. [PMID: 32422732 DOI: 10.1103/physreve.101.043201] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 03/10/2020] [Indexed: 11/07/2022]
Abstract
This paper deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field B_{*}. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that (E_{laser}·B_{*})=0. The focus of the work is on the electrons with an appreciable initial transverse momentum that are unable to gain significant energy from the laser in the absence of the magnetic field due to strong dephasing. It is shown that the magnetic field can initiate an energy increase by rotating such an electron, so that its momentum becomes directed forward. The energy gain continues well beyond this turning point where the dephasing drops to a very small value. In contrast to the case of purely vacuum acceleration, the electron experiences a rapid energy increases with the analytically derived maximum energy gain dependent on the strength of the magnetic field and the phase velocity of the wave. The energy enhancement by the magnetic field can be useful at high laser amplitudes, a_{0}≫1, where the acceleration similar to that in the vacuum is unable to produce energetic electrons over just tens of microns. A strong magnetic field helps leverage an increase in a_{0} without a significant increase in the interaction length.
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Affiliation(s)
- A Arefiev
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA and Center for Energy Research, University of California at San Diego, La Jolla, California 92093, USA
| | - Z Gong
- SKLNPT, School of Physics, Peking University, Beijing 100871, China and Center for High Energy Density Science, University of Texas, Austin, Texas 78712, USA
| | - A P L Robinson
- Central Laser Facility, STFC Rutherford-Appleton Laboratory, Didcot, OX11 0QX, United Kingdom
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Shi X, Zhu M, Gong Z, Yang T, Yu R, Wang J, Zhang Y. Homoharringtonine suppresses LoVo cell growth by inhibiting EphB4 and the PI3K/AKT and MAPK/EKR1/2 signaling pathways. Food Chem Toxicol 2020; 136:110960. [DOI: 10.1016/j.fct.2019.110960] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 01/28/2023]
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Zhu M, Gong Z, Wu Q, Shi X, Su Q, Zhang Y. Sanguinarine suppresses migration and metastasis in colorectal carcinoma associated with the inversion of EMT through the Wnt/β-catenin signaling. Clin Transl Med 2020; 10:1-12. [PMID: 32508048 PMCID: PMC7239267 DOI: 10.1002/ctm2.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Unresectable lung or liver organ metastases of colorectal carcinoma (CRC) remain a major obstacle in clinical therapeutics. Epithelial to mesenchymal transition (EMT), a major cause of highly frequent metastasis in tumor, can be promoted by the Wnt/β-catenin pathway that is aberrantly activated in approximately 90% of CRC. This research aimed to elucidate the antimetastatic potential of sanguinarine (SG) in CRC and the underlying molecular mechanism. METHODS The in vitro anticancer effect of SG was determined via cell viability experiment and colony formation assay. Xenograft model of nude mice was used to confirm the antitumor effect of SG in vivo. The antimetastatic potential of SG was investigated by the metastasis model of nude mice, hematoxylin and eosin (H&E) staining, migration assay, and wound-healing analysis. Immunoblotting analysis, immunofluorescence staining, and immunohistochemistry assay were conducted to elucidate the molecular mechanism. RESULTS In this study, we reported that SG has a selective inhibitory effect on LoVo cells with metastatic characteristics. Furthermore, our results showed attenuation in the migration and metastatic ability of SG-treated LoVo cells and also decreased metastatic nodules of liver and lung in mice metastasis model. This was also confirmed at the molecular level via H&E staining. Further study revealed that SG had negative impacts on the Wnt/β-catenin pathway and EMT markers in LoVo cells both in vitro and in vivo. CONCLUSIONS Taken together, the antimetastatic potential of SG attributed to the suppression of the Wnt/β-catenin signaling, which further prevented EMT progression. SG may be of value in a potential therapy for the management of metastasis CRC.
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Affiliation(s)
- Man Zhu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Zhengyan Gong
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Qing Wu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Xianpeng Shi
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Qi Su
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Yanmin Zhang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
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32
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Liang H, Geng J, Bai S, Aimuguri A, Gong Z, Feng R, Shen X, Wei S. TaqMan real-time PCR for detecting bovine viral diarrhea virus. Pol J Vet Sci 2019; 22:405-413. [PMID: 31269348 DOI: 10.24425/pjvs.2019.129300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present study was aimed to establish a novel TaqMan real-time PCR (RTm-PCR) for detecting and typing bovine viral diarrhea virus (BVDV), and also to develop a diagnostic protocol which simplifies sample collection and processing. Universal primers and TaqMan-MGB probes were designed from the known sequences of conserved 5' - and 3'-untranslated regions (5'UTR, 3'UTR) of the NADL strain of BVDV. Prior to optimizing the assay, cDNAs were transcribed in vitro to make standard curves. The sensitivity, specificity and stability (reproducibility) were evaluated. The RTm-PCR was tested on the 312 feces specimens collected from persistently infected (PI) calves. The results showed the optimum conditions for RTm-PCR were 17.0 μmol/L primer, 7.5 μmol/L probe and 51.4°C annealing temperature. The established TaqMan RTm-PCR assay could specially detect BVDV without detecting any other viruses. Its detection limit was 1.55×100 copies/μL for viral RNA. It was 10000-fold higher than conventional PCR with excellent specificity and reproducibility. 312 samples were tested using this method and universal PCR from six dairy farms, respectively. Positive detections were found in 49 and 44 feces samples, respectively. The occurrence rate was 89.80%. In conclusion, the established TaqMan RTm-PCR could rapidly detect BVDV and effectively identify PI cattle. The detection limit of RTm-PCR was 1.55 copies/μL. It will be beneficial for enhancing diagnosis and therapy efficacy and reduce losses in cattle farms.
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Affiliation(s)
- H Liang
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - J Geng
- Medicine College, Northwest Minzu University, Lanzhou, 730030, China
| | - S Bai
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - A Aimuguri
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - Z Gong
- Animal Cell Engineering Center of Gansu Province, Lanzhou 730030, China
| | - R Feng
- Animal Cell Engineering Center of Gansu Province, Lanzhou 730030, China
| | - X Shen
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
| | - S Wei
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China.,Medicine College, Northwest Minzu University, Lanzhou, 730030, China
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33
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Tang YH, Gong Z, Yu JQ, Shou YR, Yan XQ. Deflection of a reflected intense circularly polarized light beam induced by asymmetric radiation pressure. Phys Rev E 2019; 100:063203. [PMID: 31962419 DOI: 10.1103/physreve.100.063203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Indexed: 06/10/2023]
Abstract
A deflection effect of an intense laser beam with spin angular momentum is revealed theoretically by an analytical modeling using radiation pressure and momentum balance of laser plasma interaction in the relativistic regime as a deviation from the law of reflection. The reflected beam deflects out of the plane of incidence with a deflection angle up to several milliradians, when a nonlinear polarized laser, with the intensity I_{0}∼10^{19}W/cm^{2} and duration around tens of femtoseconds, is obliquely incident and reflected by an overdense plasma target. This effect originates from the asymmetric radiation pressure caused by spin angular momentum of the laser photons. The dependence of the deflection angle of a Gaussian-type laser on the parameters of laser pulse and plasma foil is theoretically derived, which is also confirmed by three-dimensional particle-in-cell simulations of circularly polarized laser beams with the different intensity and pulse duration.
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Affiliation(s)
- Y H Tang
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - Z Gong
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - J Q Yu
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - Y R Shou
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - X Q Yan
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
- CICEO, Shanxi University, Taiyuan, Shanxi 030006, China
- Shenzhen Research Institute of Peking University, Shenzhen 518055, China
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34
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Gong Z, Mackenroth F, Yan XQ, Arefiev AV. Radiation reaction as an energy enhancement mechanism for laser-irradiated electrons in a strong plasma magnetic field. Sci Rep 2019; 9:17181. [PMID: 31748597 PMCID: PMC6868192 DOI: 10.1038/s41598-019-53644-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 08/06/2019] [Accepted: 11/04/2019] [Indexed: 11/15/2022] Open
Abstract
Conventionally, friction is understood as a mechanism depleting a physical system of energy and as an unavoidable feature of any realistic device involving moving parts. In this work, we demonstrate that this intuitive picture loses validity in nonlinear quantum electrodynamics, exemplified in a scenario where spatially random friction counter-intuitively results in a highly directional energy flow. This peculiar behavior is caused by radiation friction, i.e., the energy loss of an accelerated charge due to the emission of radiation. We demonstrate analytically and numerically how radiation friction can dramatically enhance the energy gain by electrons from a laser pulse in a strong magnetic field that naturally arises in dense laser-irradiated plasma. We find the directional energy boost to be due to the transverse electron momentum being reduced through friction whence the driving laser can accelerate the electron more efficiently. In the considered example, the energy of the laser-accelerated electrons is enhanced by orders of magnitude, which then leads to highly directional emission of gamma-rays induced by the plasma magnetic field.
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Affiliation(s)
- Z Gong
- SKLNPT, KLHEDP and CAPT, School of Physics, Peking University, Beijing, 100871, China.,Center for High Energy Density Science, The University of Texas at Austin, Austin, TX, 78712, USA
| | - F Mackenroth
- Max Planck Institute for the Physics of Complex Systems, 01187, Dresden, Germany.,Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, CA, 92093, USA
| | - X Q Yan
- SKLNPT, KLHEDP and CAPT, School of Physics, Peking University, Beijing, 100871, China
| | - A V Arefiev
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, CA, 92093, USA. .,Center for Energy Research, University of California at San Diego, La Jolla, CA, 92093, USA.
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35
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Zhu M, Yang L, Shi X, Gong Z, Yu R, Zhang D, Zhang Y, Ma W. TPD7 inhibits the growth of cutaneous T cell lymphoma H9 cell through regulating IL-2R signalling pathway. J Cell Mol Med 2019; 24:984-995. [PMID: 31742861 PMCID: PMC6933353 DOI: 10.1111/jcmm.14810] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/19/2019] [Revised: 09/20/2019] [Accepted: 10/19/2019] [Indexed: 01/18/2023] Open
Abstract
IL‐2R pathway is a key regulator in the development of immune cells and has emerged as a promising drug target in cancer treatment, but there is a scarcity of related inhibitors. TPD7 is a novel biphenyl urea taspine derivate, which has been shown anti‐cancer effect. Here, we demonstrated the anti‐cancer activity of TPD7 in cutaneous T cell lymphoma and investigated the underlying mechanism of TPD7 through IL‐2R signalling. The inhibitory effect of TPD7 on cell viability exhibited a strong correlation with the expression level of IL‐2R, and cutaneous T cell lymphoma H9 and HUT78 cells were most sensitive to TPD7. TPD7 was nicely bound to IL‐2R and down‐regulated the mRNA and protein levels of IL‐2R. Furthermore, TPD7 suppressed the downstream cascades of IL‐2R including JAK/STAT, PI3K/AKT/mTOR and PLCγ/Raf/MAPK signalling, resulting in Bcl‐2 mitochondrial apoptosis pathway and cell cycle proteins CDK/Cyclins regulation. And, these were verified by flow cytometry analysis that TPD7 facilitated cell apoptosis in H9 cells via mitochondrial pathway and impeded cell cycle progression at G2/M phase. TPD7 is a novel anti‐cancer agent and may be a potential candidate for cutaneous T cell lymphoma treatment by regulating IL‐2R signalling pathway.
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Affiliation(s)
- Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Liu Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xianpeng Shi
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Zhengyan Gong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Runze Yu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Dongdong Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
| | - Weina Ma
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, China
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Ma X, Qu X, Yang W, Wang H, Wang B, Shen M, Zhou Y, Zhang C, Sun Y, Chen J, Hu B, Gong Z, Zhang X, Pan B, Zhou J, Fan J, Yang X, Guo W. Soluble programmed death-ligand 1 indicate poor prognosis in hepatocellular carcinoma patients undergoing transcatheter arterial chemoembolization. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen J, Zhang J, Su J, Gong Z, Chu X, Nie Q, Tang W, Song M, Zhong W. P2.14-36 Identification of Genomic Features in Tumor-Derived Organoids from Resectable NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Guo Z, Zhang J, Gong Z, Jing S. Correlation of factors associated with postoperative infection in patients with malignant oral and maxillofacial tumours: a logistic regression analysis. Br J Oral Maxillofac Surg 2019; 57:460-465. [DOI: 10.1016/j.bjoms.2019.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 04/04/2019] [Indexed: 11/25/2022]
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39
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Fu YX, Wang YH, Tong XS, Gong Z, Sun XM, Yuan JC, Zheng TT, Li C, Niu DQ, Dai HG, Liu XF, Mao YJ, Tang BD, Xue W, Huang YJ. EDACO, a derivative of myricetin, inhibits the differentiation of Gaoyou duck embryonic osteoclasts in vitro. Br Poult Sci 2019; 60:169-175. [PMID: 30722674 DOI: 10.1080/00071668.2018.1564239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1. This study determined the effects of (E)-3-(2-(4-(3-(2,4-dimethoxyphenyl)acryloyl)phenoxy)ethoxy)-5,7-dimethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (EDACO) on the differentiation of Gaoyou duck embryonic osteoclasts cultured in vitro. 2. Bone marrow mononuclear cells (BM-MNC) were collected from 23-d-old Gaoyou duck embryos and induced by macrophage colony-stimulating factor and receptor activator of nuclear factor κB ligand in the presence of EDACO at different concentrations (i.e. 10, 20, 40, 80 and 160 µM). Tartrate-resistant acid phosphatase (TRAP) staining and resorption ability determination were conducted. 3. Results suggested that EDACO suppressed the shaping of positive multinucleated cells and the number of TRAP-positive cells in the 20, 40, 80 and 160 μM EDACO groups was significantly decreased (P < 0.05 or P < 0.01). Besides, the absorption activity of differentiated duck embryonic osteoclasts was significantly inhibited (P < 0.05) in both 80 and 160 μM EDACO groups. 4. Overall, EDACO can inhibit the differentiation of BM-MNC into mature osteoclasts in duck embryos.1.
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Affiliation(s)
- Y X Fu
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - Y H Wang
- b State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering , Guizhou University , Huaxi District , Guiyang , 550025 , PR China
| | - X S Tong
- c College of Veterinary Medicine , Yangzhou University , Yangzhou , 225009 , PR China
| | - Z Gong
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - X M Sun
- d Department of Clinical Medicine , Bengbu Medical College , Bengbu , 233030 , PR China
| | - J C Yuan
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - T T Zheng
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - C Li
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - D Q Niu
- e Department of gynaecology and obstetrics , The Second Affiliated Hospital of Bengbu Medical College , Bengbu , 233030 , PR China
| | - H G Dai
- f Animal husbandry and veterinary bureau of Fengyang County , Chuzhou , 233100 , PR China
| | - X F Liu
- g Department of surgical oncology , The First Affiliated Hospital of Bengbu Medical College , Huaxi District , Bengbu , 233030 , PR China
| | - Y J Mao
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - B D Tang
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
| | - W Xue
- b State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering , Guizhou University , Huaxi District , Guiyang , 550025 , PR China
| | - Y J Huang
- a Department of Bioscience , Bengbu Medical College , Bengbu , 233030 , PR China
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Tuo XQ, Wang H, Yeledan M, Zhang ZL, Gong Z, Tian T, Chen Z, Gulisiya H, Dai JH. [Rush poppers use and risks of human papillomavirus infection among men who have sex with men in Urumqi: mediation effect through high-risk sexual behaviors]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:202-205. [PMID: 30744297 DOI: 10.3760/cma.j.issn.0253-9624.2019.02.015] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To study the prevalence of rush poppers use among men who have sex with men (MSM) in Urumqi and to analyze the mediating effect of high-risk sexual behavior between the use of rush poppers and human papillomavirus (HPV) infection. Methods: From January to June 2018, 651 MSM were recruited through network and publicity. Data was collected by using online questionnaire and anal swab were collected from them for HPV genotyping. According to Baron and Kenny's criterion, multivariate logistic regression models was used to analyze the mediation effect of high-risks sexual behaviors (multiple sexual partners, anal intercourse condom use) between rush poppers use and HPV infection. Results: A total of 651 subjects were (32.0±8.0) years old, and 174 subjects (26.7%) had ever used rush poppers in the past 6 months, while 350 subjects (46.9%) had more than 2 sexual partners and 188 subjects (28.9%) did not use anal condom. After adjusting age and marital status, rush poppers use was associated with HPV infection (OR (95%CI) was 2.34 (1.63-3.36), P<0.05), and sexual partners in the past 6 months (OR (95%CI) was 2.72 (1.89-3.93), P<0.05).After adjustment for age, marital status, sexual partners in the past 6 months, and anal condom use, rush poppers use was still associated with HPV infection (OR (95%CI) was 2.21 (1.53-3.19), P<0.05).After adjustment and adjustment of age, marital status, rush poppers use and anal sex condom use, the number of sexual partners at nearly 6 months was still associated with HPV infection (OR (95%CI) was 1.46 (1.05-2.04), P<0.05). Conclusion: Sexual partners in the past 6 months have a mediation effect between rush poppers use and HPV infection in Urumqi. For the prevention of sexually transmitted diseases, we should focus on rush poppers use.
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Affiliation(s)
- X Q Tuo
- Department of Epidemiology and Health Statistics, College of Public Health, Xinjiang Medica, Urumqi 830011, China
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Yu JQ, Lu HY, Takahashi T, Hu RH, Gong Z, Ma WJ, Huang YS, Chen CE, Yan XQ. Creation of Electron-Positron Pairs in Photon-Photon Collisions Driven by 10-PW Laser Pulses. Phys Rev Lett 2019; 122:014802. [PMID: 31012720 DOI: 10.1103/physrevlett.122.014802] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Indexed: 06/09/2023]
Abstract
A novel approach is proposed to demonstrate the two-photon Breit-Wheeler process by using collimated and wide-bandwidth γ-ray pulses driven by 10-PW lasers. Theoretical calculations suggest that more than 3.2×10^{8} electron-positron pairs with a divergence angle of 7° can be created per shot, and the signal-to-noise ratio is higher than 10^{3}. The positron signal, which is roughly 100 times higher than the detection limit, can be measured by using the existing spectrometers. This approach, which could demonstrate the e^{-}e^{+} pair creation process from two photons, would provide important tests for two-photon physics and other fundamental physical theories.
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Affiliation(s)
- J Q Yu
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - H Y Lu
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - T Takahashi
- AdSM Hiroshima University, 1-3-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8530, Japan
| | - R H Hu
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - Z Gong
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - W J Ma
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - Y S Huang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Particle Detection and Electronics (Institute of High Energy Physics, CAS), Beijing 100049, China
| | - C E Chen
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - X Q Yan
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Shenzhen Research Institute of Peking University, Shenzhen 518055, China
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42
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Xu YQ, Hua J, Gong Z, Zhao W, Zhang ZQ, Xie CY, Chen ZT, Chen JF. Visible light communication using dual camera on one smartphone. Opt Express 2018; 26:34609-34621. [PMID: 30650882 DOI: 10.1364/oe.26.034609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 11/21/2018] [Indexed: 06/09/2023]
Abstract
Dual camera is becoming increasingly prevalent among smartphone camera schemes these days. This paper demonstrates a system prototype by using the color and monochrome cameras on one smartphone simultaneously for visible light communication. To achieve this, we propose a novel dual-modulation scheme. The baseband signal is firstly modulated by color ratio modulation-color shift keying (CRM-CSK) to broadcast color ratio information that can be distinguished by the color camera. Next to it, gray level modulation (GLM) is utilized to generate CRM symbols with gray levels that can be distinguished by the monochrome camera. Our experiment shows a significant improvement in the downlink data rate of the optical camera communication (OCC) using a single light source.
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Ferreira VG, Montecino HC, Ndehedehe CE, Heck B, Gong Z, de Freitas SRC, Westerhaus M. Space-based observations of crustal deflections for drought characterization in Brazil. Sci Total Environ 2018; 644:256-273. [PMID: 29981974 DOI: 10.1016/j.scitotenv.2018.06.277] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/19/2018] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Widespread environmental impacts of frequent drought episodes in Brazil have resulted in several drought-related diagnostics studies. However, the potential of many "opportunistic sensors", such as the Global Positioning System (GPS), has not yet been considered in hydrological hazard monitoring in Brazil. In this study, the response of the Earth's crust to Brazil's 2012-2015 drought event in different structural provinces is analyzed by comparing GPS-observed vertical crustal deformations (VCDs) with the terrestrial water storage (TWS) derived from the Gravity Recovery and Climate Experiment (GRACE). The results indicate that there is no spatial correlation between annual amplitudes of the TWS and VCDs in different structural provinces apart from the purely elastic response of the crust to TWS dynamics, at almost all the 39 GPS stations that were analyzed. However, approximately 15% of the monitoring stations show that VCD leads TWS with a phase lag of 2-4 months. Errors associated with VCD and TWS are within the accepted range for space geodetic techniques (i.e., GPS and GRACE) and despite the need for further investigation, the phase lead seems to be associated with rainfall, which impacts the TWS through the hydrographs. Overall, the GPS-based drought index (DIVCD) reflects the water depletion in many regions of Brazil, which agrees with the GRACE-based DITWS in terms of the Spearman correlation coefficient (ranging from 0.4 to 0.9) in the Amazon, Tocantins, La Plata, and São Francisco river basins. This agreement confirms the drought persistence during the study period and that DIVCD can be used to monitor hydrological droughts. In regions in which DITWS sufficiently agrees with DIVCD (48% of the sites), near real-time drought monitoring is feasible. This could be useful in the optimization of models for the forward prediction of drought events in other regions worldwide, where GPS vertical displacements strongly correlate with hydrological GRACE signals.
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Affiliation(s)
- V G Ferreira
- School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China
| | - H C Montecino
- Department of Geodesy Science and Geomatics, University of Concepción, Los Angeles 4451032, Chile
| | - C E Ndehedehe
- Australian Rivers Institute and Griffith School of Environment & Science, Griffith University, Nathan, Queensland 4111, Australia
| | - B Heck
- Geodetic Institute of Karlsruhe, Karlsruhe Institute of Technology, Karlsruhe 76128, Germany
| | - Z Gong
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, 1st 1 Xi Kang Lu, Nanjing 210098, Jiangsu, China.
| | - S R C de Freitas
- Geodetic Sciences Graduation Course, Federal University of Paraná, Curitiba 81.531-990, Brazil
| | - M Westerhaus
- Geodetic Institute of Karlsruhe, Karlsruhe Institute of Technology, Karlsruhe 76128, Germany
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44
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Zhu YC, Xu C, Wang WX, Fang MY, Zhuang W, Zhang QX, Gong Z, Chen YP, Chen G, Lv TF, Song Y. ALK rearrangent in pulmonary sarcomatoid carcinoma: A retrospective study of the real world. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy441.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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45
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Zhang J, Gong Z, Li R, Gao Y, Li Y, Li J, Yan B, Wang G. Influence of lung function and sleep-disordered breathing on stroke: a community-based study. Eur J Neurol 2018; 25:1307-e112. [PMID: 29924443 DOI: 10.1111/ene.13722] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 06/19/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE Impaired lung function is regarded as a risk factor for stroke in patients with chronic obstructive pulmonary disease. However, the association between reduced lung function and incident stroke in a community-based population with sleep-disordered breathing (SDB) remains unknown. METHODS A prospective study was performed within the Sleep Heart Health Study cohort. Full montage home sleep testing and spirometry data on 2082 and 2072 individuals with and without SDB, respectively, were analysed. Cox proportional hazards regression models were used to estimate the association between lung function and incident stroke. RESULTS Over 11.7 years, 183 cases of stroke were identified in participants without pre-existing cardiovascular diseases, including 71 and 112 with an apnoea-hypopnoea index <5 events/h and ≥5 events/h, respectively. In the entire population, lung function was inversely associated with incident stroke [hazard ratio (HR) 0.913 (95% confidence interval 0.839-0.994) for every 10% increase in percentage of predicted forced vital capacity]. When the population was divided according to the presence/absence of SDB, the association of lung function with incident stroke became stronger in individuals with SDB [HR 0.899 (0.822-0.984) for every 10% increase in percentage of predicted forced expiratory volume in 1 s; HR 0.881 (0.787-0.987) for every 10% increase in percentage of predicted forced vital capacity] but not in individuals without SDB. CONCLUSIONS Lung function may serve as a risk factor for incident stroke in a community-based population, especially in those with SDB. Spirometry may help improve the risk management for primary care in community-based populations.
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Affiliation(s)
- J Zhang
- Department of Emergency Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Gong
- Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - R Li
- Department of Emergency Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Gao
- Department of Emergency Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Li
- Department of Rehabilitation, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Li
- Department of Emergency Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Yan
- Clinical Research Center of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - G Wang
- Department of Emergency Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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46
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Wei S, Deng Y, Lai L, Liang H, Gong Z. Dose-dependent effects of luteinizing hormone and follicle stimulating hormone on in vitro maturation, apoptosis, secretion function and expression of follicle stimulating hormone receptor and luteinizing hormone receptor of sheep oocytes. S AFR J ANIM SCI 2018. [DOI: 10.4314/sajas.v48i2.18] [Citation(s) in RCA: 2] [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: 11/17/2022]
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47
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Zhang X, Ye M, Li C, Hu Q, Du M, Wang X, Gong Z, Zhang D, Hong Q, Hu J, Mei L, Hou Y, Zhang X. A comparison of Bronchial Washing Fluid (BWF) and histologic samples in the analysis of EGFR mutation in NSCLC patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx380.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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48
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Affiliation(s)
- X. Yu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; Department of Periodontology; School and Hospital of Stomatology; Shandong University; Jinan Shandong China
- Department of Endodontics; Jinan Stomatological Hospital; Jinan Shandong China
| | - Z. Gong
- Department of Endodontics; Jinan Stomatological Hospital; Jinan Shandong China
| | - Q. Lin
- Department of Endodontics; Jinan Stomatological Hospital; Jinan Shandong China
| | - W. Wang
- Department of Endodontics; Jinan Stomatological Hospital; Jinan Shandong China
| | - S. Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; Department of Periodontology; School and Hospital of Stomatology; Shandong University; Jinan Shandong China
| | - S. Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; Department of Periodontology; School and Hospital of Stomatology; Shandong University; Jinan Shandong China
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49
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Gong Z, Wei YW, Gao J. [The changes of adipocytokines after surgery in OSAHS patients with insulin resistance]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:674-677. [PMID: 29871344 DOI: 10.13201/j.issn.1001-1781.2017.09.006] [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] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the changes of adipocytokines after surgery in OSAHS patients with insulin resistance.Method:Eighty-four OSAHS patients were enrolled in this study and divided into two group based on insulin resistance: IR group(n=52) and non-IR group(n=32). All patients received UPPP surgery. The levels of chemerin,visfatin and obestatin were measured before and one week after surgery.Result:Before surgery,the levels of chemerin,visfatin and HOMA-IR in IR group were higher than those in non-IR group,while level of obestatin was lower than those in non-IR group. One week after surgery,the level of obestatin in IR group was lower than those in non-IR group. The levels of chemerin,visfatin and HOMA-IR were decreased while obestatin increased after surgery. Correlation analysis showed that UPPP surgery was negatively related with △chemerin(r=-0.685,P<0.05)and △HOMA-IR(r=-0.622,P<0.05).△HOMA-IR was positively associated with △chemerin(r=0.634,P<0.05).Conclusion:The levels of chemerin,visfatin and obestatin are significantly improved after UPPP surgery. Level of chemerin seems to have a close relationship with IR.
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Affiliation(s)
- Z Gong
- Department of Otorhinolaryngology,Changshu Traditional Chinese Medicine Hospital,Changshu,215500,China
| | - Y W Wei
- Department of Otorhinolaryngology,Changshu Traditional Chinese Medicine Hospital,Changshu,215500,China
| | - J Gao
- Department of Otorhinolaryngology,Changshu Traditional Chinese Medicine Hospital,Changshu,215500,China
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50
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Chen Q, Gong Z, Li C, Shao B, Liu H, Ling B. Expression of the interleukin-21 and phosphorylated extracellular signal regulated kinase 1/2 in Kimura disease. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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