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Meng HP, Zhao HF, Zhang XN, Xu TW, Guo CY. [Splenic metastasis of endometrial cancer 8 years after treatment: report of a case]. Zhonghua Bing Li Xue Za Zhi 2024; 53:404-406. [PMID: 38556829 DOI: 10.3760/cma.j.cn112151-20231023-00291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Affiliation(s)
- H P Meng
- Department of Graduate School, Hebei North University, Zhangjiakou 075000, China
| | - H F Zhao
- Department of Pathology, Hebei General Hospital, Shijiazhuang 050051, China
| | - X N Zhang
- Department of Pathology, Hebei General Hospital, Shijiazhuang 050051, China
| | - T W Xu
- Department of Graduate School, Hebei North University, Zhangjiakou 075000, China
| | - C Y Guo
- Department of Pathology, Traditional Chinese Medicine Hospital of Xianxian, Cangzhou 062250, China
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Chen Q, Zhang XN, Ding GY, Ma YF, Zhou MS, Zhang Y. Preparation and biological evaluation of antibody targeted metal-organic framework drug delivery system (TDDS) in Her2 receptor-positive cells. Talanta 2024; 269:125380. [PMID: 37995639 DOI: 10.1016/j.talanta.2023.125380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/15/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023]
Abstract
In this study, we designed and prepared a trastuzumab-coupled drug delivery system with pH response characteristics using mesoporous zeolitic imidazolate framework-8 (ZIF-8) as the carrier, Trastuzumab@ZIF-8@DOX. As results, the targeted drug delivery system (TDDS) ultimately showed high drug loading and good biocompatibility. The cumulative curve of drug release indicated that the early leakage levels were low under neutral pH conditions. However, under acidic pH conditions, there was an effective enhancement in drug release, indicating the presence of an explicit pH-triggered drug release mechanism. The results indicate that the prepared nanoparticles have the potential to serve as drug delivery systems, as they can release the loaded drug in a controlled manner. The results of cellular uptake tests showed that the uptake of the nanoparticles was greatly enhanced by the internalization mediated by the HER2 antibody. This finding indicates that the prepared nanoparticles can selectively target cancer cells that overexpress HER2. When the doxorubicin dose was 5 μg/ml, the survival rate of SK-BR-3 cells (cancer cells) was 47.75 %, and the survival rate of HaCaT cells (healthy cells) was 75.25 % when co-cultured with both cells. The therapeutic efficacy of Trastuzumab@ZIF-8@DOX was assessed on BALB/c nude mice to validate its potential as an effective drug delivery system for tumor inhibition in vivo. In conclusion, these findings demonstrate the specificity-targeted and pH-responsive nature of this smart drug delivery system, highlighting its promising prospects for efficient and controllable cancer treatment applications.
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Affiliation(s)
- Qing Chen
- Department of Pharmacy, Shenyang Medical College, Shenyang, 110034, PR China
| | - Xiao-Nan Zhang
- Department of Pharmacy, Shenyang Medical College, Shenyang, 110034, PR China
| | - Guo-Yu Ding
- Department of Pharmacy, Shenyang Medical College, Shenyang, 110034, PR China
| | - Yu-Fei Ma
- Department of Pharmacy, Shenyang Medical College, Shenyang, 110034, PR China
| | - Ming-Sheng Zhou
- Shenyang Key Laboratory of Vascular Biology, Science and Experiment Center, Shenyang Medical College, Shenyang, 110034, PR China.
| | - Yang Zhang
- Department of Pharmacy, Shenyang Medical College, Shenyang, 110034, PR China.
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Li DY, Su QJ, Zhang XN, Tao LM, Hai Y. [Clinical study of lumbar stability after unilateral biportal endoscopy in the treatment of degenerative lumbar diseases]. Zhonghua Wai Ke Za Zhi 2024; 62:187-193. [PMID: 38291634 DOI: 10.3760/cma.j.cn112139-20230717-00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Objectives: To investigate the clinical efficacy of unilateral biportal endoscopy (UBE) in the treatment of degenerative lumbar disease (DLD) and its impact on postoperative lumbar stability. Methods: This is a retrospective case series study. A total of 109 cases of DLD treated with UBE in the Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University from July 2020 to June 2022 were analyzed retrospectively. There were 47 males and 62 females, aged (53.3±8.2) years (range: 21 to 80 years). The surgical segments were single segment in 80 cases, two segments in 25 cases, and three segments in 4 cases. The low back pain and leg pain of visual analogue scale (VAS), Japanese Orthopaedic Association (JOA) score and Oswestry disability index (ODI) were evaluated before and after operation. The modified MacNab criteria were used for evaluation of the clinical consequences. Postoperative three-dimensional lumbar CT was performed to observe the preservation of the facet joints and the angle of the medial surface of the facetectomy(β angle). At 12 months after surgery, X ray of the flexion and extension lumbar spine were reviewed. The comparison and analysis of the data were conducted using paired sample t tests or generalized estimation equations. Results: All 109 patients underwent operative procedures successfully. The operation time was (94.5±37.1) minutes (range:56 to 245 minutes), the times of X ray was 6.8±4.0 (range:4 to 16 times), and the days of hospitalization was (5.3±3.7) days (range:4 to 14 days). Complications included dural tears in 4 cases, transient lower limb numbness in 4 cases, epidural hematoma in 2 case. The follow-up time was (19.6±7.2) months (range:12 to 36 months). The postoperative low back pain VAS, leg pain VAS, JOA score and ODI were significantly improved(all P<0.05). According to the modified MacNab criteria, the excellent and good rate was 88.99%(97/109) at 12 months after surgery. One case underwent revision surgery because of recurrent lumbar disc herniation. In term of radiographic evaluation, the area of the surgical side facet joints after UBE surgery was reserved more than 60%. The β angle was less than 90° in all patients. After 12 months of surgery, there was no surgical segment instability or spondylolisthesis by the X-ray of the flexion and extension lumbar spine. Conclusion: UBE can achieve satisfactory clinical efficacy in the treatment of DLD, and maintain the stability of the lumbar spine.
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Affiliation(s)
- D Y Li
- Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - Q J Su
- Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - X N Zhang
- Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - L M Tao
- Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
| | - Y Hai
- Department of Orthopaedic, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100020, China
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Sun C, Hu L, Li X, Zhang X, Chen J, Li D, Zhang J, Liu L, Wu M. Triglyceride-glucose index's link to cardiovascular outcomes post-percutaneous coronary intervention in China: a meta-analysis. ESC Heart Fail 2024. [PMID: 38246749 DOI: 10.1002/ehf2.14679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/05/2023] [Accepted: 12/27/2023] [Indexed: 01/23/2024] Open
Abstract
Percutaneous coronary intervention (PCI) addresses myocardial ischaemia, but a significant subset of patients encounter major adverse cardiovascular events (MACE) post-treatment. This meta-analysis investigated the relationship between the post-PCI triglyceride-glucose (TyG) index and MACE. Comprehensive searches of the Embase, PubMed, Cochrane Library, and Web of Science databases were conducted up to 3 March 2023, using relevant keywords. The effect size was determined based on I2 statistic using random-effects models. Cluster-robust standard errors crafted the dose-response curve, and the GRADE Evaluation Scale was employed to rate the quality of evidence. The group with the highest TyG index had significantly higher post-PCI MACE rates than the lowest index group, with hazard ratios (HRs) of 2.04 (95% CI 1.65-2.52; I2 = 77%). Each unit increase in TyG index corresponded to HRs of 1.82 for MACE (95% CI 1.34-2.46; I2 = 92%), 2.57 for non-fatal MI (95% CI 1.49-4.41; I2 = 63%), and 2.06 for revascularization (95% CI 1.23-3.50; I2 = 90%). A linear relationship between TyG index and MACE risk was established (R2 = 0.6114). For all-cause mortality, the HR was 1.93 (95% CI 1.35-2.75; I2 = 50%), indicating a higher mortality risk with elevated TyG index. The GRADE assessment yielded high certainty for non-fatal MI but low certainty for all-cause mortality, revascularization, and MACE. The TyG index may predict risks of post-PCI MACE, all-cause mortality, non-fatal MI, and revascularization, with varied levels of certainty. A potential linear association between the TyG index and MACE post-PCI was identified. Future research should validate these findings.
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Affiliation(s)
- ChangXin Sun
- Beijing University of Chinese Medicine, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - LanQing Hu
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - XiaoYa Li
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - XiaoNan Zhang
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - JiYe Chen
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - DeXiu Li
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - JingYi Zhang
- Beijing University of Chinese Medicine, Beijing, China
| | - LongTao Liu
- National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, China
| | - Min Wu
- China Academy of Chinese Medical Sciences, Guang'anmen Hospital, Beijing, China
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Ren QN, Huang DH, Zhang XN, Wang YN, Zhou YF, Zhang MY, Wang SC, Mai SJ, Wu DH, Wang HY. Two somatic mutations in the androgen receptor N-terminal domain are oncogenic drivers in hepatocellular carcinoma. Commun Biol 2024; 7:22. [PMID: 38182647 PMCID: PMC10770045 DOI: 10.1038/s42003-023-05704-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 12/13/2023] [Indexed: 01/07/2024] Open
Abstract
The androgen receptor (AR) plays an important role in male-dominant hepatocellular carcinoma, and specific acquired somatic mutations of AR have been observed in HCC patients. Our previous research have established the role of AR wild type as one of the key oncogenes in hepatocarcinogenesis. However, the role of hepatic acquired somatic mutations of AR remains unknown. In this study, we identify two crucial acquired somatic mutations, Q62L and E81Q, situated close to the N-terminal activation function domain-1 of AR. These mutations lead to constitutive activation of AR, both independently and synergistically with androgens, making them potent driver oncogene mutations. Mechanistically, these N-terminal AR somatic mutations enhance de novo lipogenesis by activating sterol regulatory element-binding protein-1 and promote glycogen accumulation through glycogen phosphorylase, brain form, thereby disrupting the AMPK pathway and contributing to tumorigenesis. Moreover, the AR mutations show sensitivity to the AMPK activator A769662. Overall, this study establishes the role of these N- terminal hepatic mutations of AR as highly malignant oncogenic drivers in hepatocarcinogenesis and highlights their potential as therapeutic targets for patients harboring these somatic mutations.
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Affiliation(s)
- Qian-Nan Ren
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China.
| | - Dan-Hui Huang
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xiao-Nan Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China
| | - Yue-Ning Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China
| | - Yu-Feng Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China
| | - Mei-Yin Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China
| | - Shuo-Cheng Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China
| | - Shi-Juan Mai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China
| | - De-Hua Wu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
| | - Hui-Yun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China.
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Wang XP, Wang CF, Zhao XQ, Ma MJ, Li ZH, Jiang H, Zhang XN, Yuan CZ. Comparison of milk protein concentrate, micellar casein, and whey protein isolate in loading astaxanthin after the treatment of ultrasound-assisted pH shifting. J Dairy Sci 2024; 107:141-154. [PMID: 37690728 DOI: 10.3168/jds.2023-23691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023]
Abstract
Milk proteins can be used as encapsulation walls to increase the bioavailability of active compounds because they can bind hydrophobic, hydrophilic, and charged compounds. The objective of this study was to investigate the effects of astaxanthin (ASTA) encapsulation and the functional properties of milk protein and ASTA nanocomposites by an ultrasound-assisted pH-shifting treatment of different milk proteins, including milk protein concentrate (MPC), micellar casein (MCC), and whey protein isolate (WPI). The ultrasound-assisted pH-shifting treatment of milk protein helped to improve the encapsulation rate of ASTA. Therein, MCC showed great improvement of encapsulating ASTA after co-treatment with the raised encapsulated rate of 5.11%, followed by WPI and MPC. Furthermore, the nanocomposites of ASTA with milk protein exhibit improved bioavailability, antioxidant capacity, and storage stability. By comparison, MCC-encapsulated ASTA has the best storage stability, followed by MPC, and WPI-encapsulated ASTA has the least stability over a 28-d storage period. The results of intrinsic fluorescence and surface hydrophobicity showed that milk protein underwent fluorescence quenching after binding to ASTA, which was due to the hydrophobic sites of the protein being occupied by ASTA. In general, the nanocomposites of milk protein and ASTA fabricated by using an ultrasound-assisted pH-shifting treatment have the potential to be better nano-delivery systems for ASTA in functional foods, especially MCC, which showed excellent performance in encapsulation after treatment technique.
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Affiliation(s)
- X P Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - C F Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China.
| | - X Q Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - M J Ma
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Z H Li
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - H Jiang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - X N Zhang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - C Z Yuan
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, 250012, China.
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Liu JW, Zhang XN, Lin G, Li J. [The impact of the highest mediastinal lymph node metastasis on postoperative recurrence and survival in non-small cell lung cancer patients]. Zhonghua Wai Ke Za Zhi 2023; 61:1086-1092. [PMID: 37932145 DOI: 10.3760/cma.j.cn112139-20230217-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Objective: To examine whether the highest mediastinal lymph node (HMLN) metastasis had an influence on postoperative recurrence and survival among non-small cell lung cancer (NSCLC) patients with pN2 lymph node metastasis. Methods: A total of 261 patients who underwent radical resection of lung cancer and systematic lymph node dissection in the Department of Thoracic Surgery of Peking University First Hospital from January 2007 to December 2016 were retrospectively analyzed. There were 180 males and 81 females, aged (61.5±9.4) years (range: 31 to 83 years). There were 128 cases of HMLN-positive and 133 cases of HMLN-negative. They were pathologically confirmed N2 stage NSCLC and postoperative recurrence and survival were followed up. The Kaplan-Meier method was used to calculate disease-free survival (DFS) and overall survival (OS) curves according to whether HMLN metastasize or not. The Cox proportional hazards regression model was used for the prognostic analysis. Results: The median DFS and the median OS of the whole group were 28 months and 44 months, respectively. The median DFS in HMLN-positive and HMLN-negative patients was 19 months and 33 months, respectively (P=0.005). The median OS of HMLN-positive and HMLN-negative group was 37 months and 49 months, respectively (P=0.005). Multivariate analysis showed that pneumonectomy and visceral pleural invasion were independent risk factors for both postoperative OS (HR=1.85, 95%CI: 1.25 to 2.72, P=0.002; HR=1.82, 95%CI: 1.30 to 2.56, P=0.007) and DFS (HR=1.61, 95%CI: 1.10 to 2.35, P=0.014; HR=1.77, 95%CI: 1.27 to 2.46,P=0.001). HMLN metastasis and lymphovascular invasion were independent risk factors for only postoperative DFS (HR=1.39, 95%CI: 1.03 to 1.87, P=0.030; HR=1.40, 95%CI: 0.99 to 1.81, P=0.042). Conclusions: For patients of pN2 stage NSCLC, both postoperative recurrence and long-term survival were significantly worse in the HMLN metastatic group. In addition, pneumonectomy and visceral pleural invasion were unfavorable factors that affected both recurrence and overall survival. HMLN metastasis and lymphovascular invasion could shorten the postoperative time for DFS.
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Affiliation(s)
- J W Liu
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X N Zhang
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - G Lin
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - J Li
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
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Stephens EN, Zhang XN, Lam AT, Li J, Pei H, Louie SG, Wang CCC, Zhang Y. A ribose-functionalized NAD + with versatile activity for ADP-ribosylation. Chem Commun (Camb) 2023; 59:13843-13846. [PMID: 37921487 PMCID: PMC10841986 DOI: 10.1039/d3cc04343f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
An NAD+ featuring an adenosyl 4'-azido functions as a general substrate for poly-ADP-ribose polymerases. Its derived mono- and poly-ADP-ribosylated proteins can be adequately recognized by distinct ADP-ribosylation-specific readers. This molecule represents the first ribose-functionalized NAD+ with versatile activities across different ADP-ribosyltransferases and provides insight into developing new probes for ADP-ribosylation.
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Affiliation(s)
- Elisa N Stephens
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
| | - Albert T Lam
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
| | - Jiawei Li
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Stan G Louie
- Titus Family Department of Clinical Pharmacy, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA
| | - Clay C C Wang
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA
- Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089, USA
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Wang JZ, Dong XT, Zhang XN, Deng P, Cheng F, Ma WS. [Molecular epidemiology and antibiotic resistance of Pseudomonas aeruginosa isolated from blood in a hospital in Shandong Province from 2014 to 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1558-1564. [PMID: 37859371 DOI: 10.3760/cma.j.cn112150-20221020-01015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Objective: To identify the antibiotic resistance, virulence genes, and sequence types of Pseudomonas aeruginosa (P. aeruginosa) strains isolated from blood. Methods: From November 2014 to December 2021, a total of 94 nonrepetitive P. aeruginosa isolates were obtained from blood samples of patients at the First Affiliated Hospital of Shandong First Medical University in Shandong Province, China. The bacteria were identified using matrix-assisted laser desorption ionization time of flight mass spectrometry. Antibiotic resistance of the P. aeruginosa isolates was detected using Vitek 2 Compact system. Polymerase chain reaction (PCR) was conducted for the 18 virulence genes, and multi locus sequence typing (MLST) was performed to identify the sequence types of the P. aeruginosa strains. The resistance rates and distributions of virulence genes between carbapenem resistant pseudomonas aeruginosa (CRPA) and carbapenem susceptible pseudomonas aeruginosa (CSPA) isolates were compared using the Chi-square test. Results: Among 94 P. aeruginosa isolates, 19 (20.2%) isolates were found to be multidrug resistant (MDR) bacteria, of which 17 were CRPA isolates and 2 were CSPA isolates. All strains contained more than 10 virulence genes. Except for exoU gene, the detection rate of other genes was above 83%. MLST analysis revealed a total of 66 different STs, including 59 existing STs and 7 novel STs. Among them, ST244 (n=11, 11.7%) and ST270 (n=7, 7.4%) were the dominant STs. Although these two types of isolates harbored the same virulence genes, the resistance rates to carbapenem were different. 54.5% (6/11) ST244 isolates were CRPA but all 7 ST270 isolates were CSPA. Conclusion: Although the resistance rates of P. aeruginosa strains isolated from blood were at a low level, some MDR and CRPA isolates were detected. As the high virulence gene detection rates and genetic diversity were found for P. aeruginosa strains isolated from blood, close attention should be paid to avoid transmission and outbreaks.
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Affiliation(s)
- J Z Wang
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - X T Dong
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - X N Zhang
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - P Deng
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - F Cheng
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - W S Ma
- Department of Clinical Laboratory Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
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Zhang X, Xu W, Li X, Pan G, Chen N, Xie Q, Wang X. Preparation of pH sensitive bacteriostatic W/O/W emulsion microcapsules. J Biomater Sci Polym Ed 2023; 34:2060-2075. [PMID: 37161405 DOI: 10.1080/09205063.2023.2211499] [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] [Received: 02/27/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/11/2023]
Abstract
This experiment was done to study the zeolite molecular sieve as a drug-binding effector, the non-antibiotic drug potassium diformate uniformly disperse in the internal aqueous phase of the 'egg box' structure formed by pectin-calcium ions. With oil phase as the intermediate phase and Xanthan gum Chitosan as the external water phase, the W/O/W type sustained release bacteriostatic microcapsules with pH response were prepared and characterized by Fourier transform infrared, thermogravimetric, SEM, and TEM. It can be obtained through characterization experiments that the inner water phase, oil phase, and outer water phase were formed by observation, and W/O/W emulsion microcapsules were obtained and the bacteriostasis effect of microcapsules was verified by bacteriostasis experiment. The permeance experiment showed that the molecular sieve was successfully coated in the microsphere. Studying on drug release mechanism and sustaining release performance of composite emulsion microcapsules. In vitro drug release study showed that the encapsulation efficiency and drug loading rate of microcapsules were improved by adding molecular sieve, reaching 12.31% and 61.55%, respectively. At the same time, we observed that the drug release rate slowed down during the simulated intestinal release process, and the drug release kinetics were in line with the first-order kinetic model and Ritger-Peppas model equation. Experiments had proven that the drug-loaded microcapsules exerted a significant bacteriostatic effect on Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, with the highest antibacterial rates of 97.25%, 94.05%, and 95.93%, respectively. Therefore, the composite emulsion microcapsules can be used as a new controlled-release drug delivery system in vivo.
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Affiliation(s)
- XiaoNan Zhang
- College of Material Science and Engineering, Guilin University of Technology, Guilin, China
| | - WenQin Xu
- College of Material Science and Engineering, Guilin University of Technology, Guilin, China
| | - Xing Li
- College of Material Science and Engineering, Guilin University of Technology, Guilin, China
| | - GuangHua Pan
- College of Material Science and Engineering, Guilin University of Technology, Guilin, China
| | - NanChun Chen
- College of Material Science and Engineering, Guilin University of Technology, Guilin, China
- Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficiency Utilization of Resources, Guilin University of Technology, Guilin, China
| | - QingLin Xie
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, China
| | - XiuLi Wang
- College of Chemical and Biomedical Engineering, Guilin University of Technology, Guilin, China
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11
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Li XY, Liu SH, Liu C, Zu HM, Guo XQ, Xiang HL, Huang Y, Yan ZL, Li YJ, Sun J, Song RX, Yan JQ, Ye Q, Liu F, Huang L, Meng FP, Zhang XN, Yang SS, Hu SJ, Ruan JG, Li YL, Wang NN, Cui HP, Wang YM, Lei C, Wang QH, Tian HL, Qu ZS, Yuan M, Shi RC, Yang XT, Jin D, Su D, Liu YJ, Chen Y, Xia YX, Li YZ, Yang QH, Li H, Zhao XL, Tian ZM, Yu HJ, Zhang XJ, Wu CX, Wu ZJ, Li SS, Shen Q, Liu XM, Hu JP, Wu MQ, Dang T, Wang J, Meng XM, Wang HY, Jiang ZY, Liu YY, Liu Y, Qu SX, Tao H, Yan DM, Liu J, Fu W, Yu J, Wang FS, Qi XL, Fu JL. [Impact of different diagnostic criteria for assessing mild micro-hepatic encephalopathy in liver cirrhosis: an analysis based on a prospective, multicenter, real-world study]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:961-968. [PMID: 37872092 DOI: 10.3760/cma.j.cn501113-20220602-00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Objective: To compare the differences in the prevalence of mild micro-hepatic encephalopathy (MHE) among patients with cirrhosis by using the psychometric hepatic encephalopathy score (PHES) and the Stroop smartphone application (Encephal App) test. Methods: This prospective, multi-center, real-world study was initiated by the National Clinical Medical Research Center for Infectious Diseases and the Portal Hypertension Alliance and registered with International ClinicalTrials.gov (NCT05140837). 354 cases of cirrhosis were enrolled in 19 hospitals across the country. PHES (including digital connection tests A and B, digital symbol tests, trajectory drawing tests, and serial management tests) and the Stroop test were conducted in all of them. PHES was differentiated using standard diagnostic criteria established by the two studies in China and South Korea. The Stroop test was evaluated based on the criteria of the research and development team. The impact of different diagnostic standards or methods on the incidence of MHE in patients with cirrhosis was analyzed. Data between groups were differentiated using the t-test, Mann-Whitney U test, and χ (2) test. A kappa test was used to compare the consistency between groups. Results: After PHES, the prevalence of MHE among 354 cases of cirrhosis was 78.53% and 15.25%, respectively, based on Chinese research standards and Korean research normal value standards. However, the prevalence of MHE was 56.78% based on the Stroop test, and the differences in pairwise comparisons among the three groups were statistically significant (kappa = -0.064, P < 0.001). Stratified analysis revealed that the MHE prevalence in three groups of patients with Child-Pugh classes A, B, and C was 74.14%, 83.33%, and 88.24%, respectively, according to the normal value standards of Chinese researchers, while the MHE prevalence rates in three groups of patients with Child-Pugh classes A, B, and C were 8.29%, 23.53%, and 38.24%, respectively, according to the normal value standards of Korean researchers. Furthermore, the prevalence rates of MHE in the three groups of patients with Child-Pugh grades A, B, and C were 52.68%, 58.82%, and 73.53%, respectively, according to the Stroop test standard. However, among the results of each diagnostic standard, the prevalence of MHE showed an increasing trend with an increasing Child-Pugh grade. Further comparison demonstrated that the scores obtained by the number connection test A and the number symbol test were consistent according to the normal value standards of the two studies in China and South Korea (Z = -0.982, -1.702; P = 0.326, 0.089), while the other three sub-tests had significant differences (P < 0.001). Conclusion: The prevalence rate of MHE in the cirrhotic population is high, but the prevalence of MHE obtained by using different diagnostic criteria or methods varies greatly. Therefore, in line with the current changes in demographics and disease spectrum, it is necessary to enroll a larger sample size of a healthy population as a control. Moreover, the establishment of more reliable diagnostic scoring criteria will serve as a basis for obtaining accurate MHE incidence and formulating diagnosis and treatment strategies in cirrhotic populations.
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Affiliation(s)
- X Y Li
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing 100039, China Medical School of Chinese PLA, Beijing 100853, China
| | - S H Liu
- The First School of Clinical Medicine of Lanzhou University, Lanzhou 730000, China
| | - C Liu
- Department of Radiology, Affiliated Zhongda Hospital, Southeast University, Nanjing 210000, China
| | - H M Zu
- Department of Gastroenterology, Qinghai Provincial Fourth People's Hospital, Xining 810000, China
| | - X Q Guo
- Department of Hepatology, the Third People's Hospital of Taiyuan, Taiyuan 030000, China
| | - H L Xiang
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Institute of Hepatobiliary Disease, Tianjin 300000, China
| | - Y Huang
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha 410000, China
| | - Z L Yan
- Department of Gastroenterology, Qinghai Provincial Fourth People's Hospital, Xining 810000, China
| | - Y J Li
- Department of Gastroenterology, Qinghai Provincial Fourth People's Hospital, Xining 810000, China
| | - J Sun
- Department of Hepatology, the Third People's Hospital of Taiyuan, Taiyuan 030000, China
| | - R X Song
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Institute of Hepatobiliary Disease, Tianjin 300000, China
| | - J Q Yan
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Institute of Hepatobiliary Disease, Tianjin 300000, China
| | - Q Ye
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Institute of Hepatobiliary Disease, Tianjin 300000, China
| | - F Liu
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha 410000, China
| | - L Huang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing 100039, China Medical School of Chinese PLA, Beijing 100853, China
| | - F P Meng
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing 100039, China Medical School of Chinese PLA, Beijing 100853, China
| | - X N Zhang
- Medical School of Chinese PLA, Beijing 100853, China
| | - S S Yang
- Department of Gastroenterology, General Hospital of Ningxia Medical University, Yinchuan 750000, China
| | - S J Hu
- Department of Gastroenterology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750000, China
| | - J G Ruan
- Branch Hospital for Diseases of the Heart, Brain, and Blood Vessels of General Hospital of Ningxia Medical University, Yinchuan 750000, China
| | - Y L Li
- Department of Gastroenterology, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - N N Wang
- Department of Gastroenterology, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - H P Cui
- Department of Gastroenterology, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - Y M Wang
- Department of Gastroenterology, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - C Lei
- Department of Hepatology, the First People's Hospital of Changde City, Changde 415000, China
| | - Q H Wang
- Department of Hepatology, the First People's Hospital of Changde City, Changde 415000, China
| | - H L Tian
- Department of Hepatology, the First People's Hospital of Changde City, Changde 415000, China
| | - Z S Qu
- Department of Infectious Diseases, Xiangxi People's Hospital, Jishou 416000, China
| | - M Yuan
- Department of Infectious Diseases, Xiangxi People's Hospital, Jishou 416000, China
| | - R C Shi
- Department of Gastroenterology, Wuzhong People's Hospital, Wuzhong 751100, China
| | - X T Yang
- Department of Gastroenterology, Wuzhong People's Hospital, Wuzhong 751100, China
| | - D Jin
- Department of Gastroenterology, Wuzhong People's Hospital, Wuzhong 751100, China
| | - D Su
- Department of Gastroenterology, Wuzhong People's Hospital, Wuzhong 751100, China
| | - Y J Liu
- Department of Hepatology, Hunan Provinces Directly Affiliated Traditional Chinese Medicine Hospital, Zhuzhou 412000, China
| | - Y Chen
- Department of Hepatology, Hunan Provinces Directly Affiliated Traditional Chinese Medicine Hospital, Zhuzhou 412000, China
| | - Y X Xia
- Department of Hepatology, Hunan Provinces Directly Affiliated Traditional Chinese Medicine Hospital, Zhuzhou 412000, China
| | - Y Z Li
- Department of Infectious Diseases, the First People's Hospital, Huaihua City, Huaihua 418000, China
| | - Q H Yang
- Department of Infectious Diseases, the First People's Hospital, Huaihua City, Huaihua 418000, China
| | - H Li
- Department of Infectious Diseases, the First People's Hospital, Huaihua City, Huaihua 418000, China
| | - X L Zhao
- Department of Hepatology, Chongqing Public Health Medical Center, Chongqing 400000, China
| | - Z M Tian
- Department of Hepatology, Chongqing Public Health Medical Center, Chongqing 400000, China
| | - H J Yu
- Department of Hepatology, Chongqing Public Health Medical Center, Chongqing 400000, China
| | - X J Zhang
- Department of Hepatology, Chongqing Public Health Medical Center, Chongqing 400000, China
| | - C X Wu
- Liver Disease Diagnosis and Treatment Center, the Fourth People's Hospital of Yiyang City, Yiyang 413000, China
| | - Z J Wu
- Liver Disease Diagnosis and Treatment Center, the Fourth People's Hospital of Yiyang City, Yiyang 413000, China
| | - S S Li
- Liver Disease Diagnosis and Treatment Center, the Fourth People's Hospital of Yiyang City, Yiyang 413000, China
| | - Q Shen
- Department of Gastroenterology, Yinchuan Second People's Hospital, Yinchuan 750000, China
| | - X M Liu
- Department of Gastroenterology, Yinchuan Second People's Hospital, Yinchuan 750000, China
| | - J P Hu
- Department of Gastroenterology, Yinchuan First People's Hospital, Yinchuan 750000, China
| | - M Q Wu
- Department of Gastroenterology, Yinchuan First People's Hospital, Yinchuan 750000, China
| | - T Dang
- Department of Gastroenterology, the Second Affiliated Hospital of Baotou Medical College, Baotou 014000, China
| | - J Wang
- Department of Gastroenterology, the Second Affiliated Hospital of Baotou Medical College, Baotou 014000, China
| | - X M Meng
- Department of Gastroenterology, the Second Affiliated Hospital of Baotou Medical College, Baotou 014000, China
| | - H Y Wang
- Department of Gastroenterology, the Second Affiliated Hospital of Baotou Medical College, Baotou 014000, China
| | - Z Y Jiang
- Department of Gastroenterology, the Second Affiliated Hospital of Baotou Medical College, Baotou 014000, China
| | - Y Y Liu
- Department of Gastroenterology, Dandong Central Hospital, Dandong 118000, China
| | - Y Liu
- Department of Gastroenterology, Dandong Central Hospital, Dandong 118000, China
| | - S X Qu
- Department of Gastroenterology, Dandong Central Hospital, Dandong 118000, China
| | - H Tao
- Department of Gastroenterology, Dandong Central Hospital, Dandong 118000, China
| | - D M Yan
- Department of Hepatology, Shenyang 739 Hospital, Shenyang 110000, China
| | - J Liu
- Department of Hepatology, Shenyang 739 Hospital, Shenyang 110000, China
| | - W Fu
- Department of Hepatology, Shenyang 739 Hospital, Shenyang 110000, China
| | - J Yu
- Department of Hepatology, Shenyang 739 Hospital, Shenyang 110000, China
| | - F S Wang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing 100039, China Medical School of Chinese PLA, Beijing 100853, China
| | - X L Qi
- The First School of Clinical Medicine of Lanzhou University, Lanzhou 730000, China Department of Radiology, Affiliated Zhongda Hospital, Southeast University, Nanjing 210000, China
| | - J L Fu
- Medical School of Chinese PLA, Beijing 100853, China Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
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Zhang XN, Yan K, You XD, Li JH, Zhang N, Wang GY, Liao MZ, Ma W. [Acceptance of pre-exposure prophylaxis and post-exposure prophylaxis against HIV and related factors in men who have sex with men in Shandong Province]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1352-1357. [PMID: 37743265 DOI: 10.3760/cma.j.cn112338-20230202-00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Objectives: To understand the use of pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP) and related factors in men who have sex with men (MSM) in Shandong Province, and provide reference for the promotion of PrEP and PEP in MSM. Methods: From April to July in 2022, MSM were recruited from 7 sentinel surveillance sites in Shandong Province for a questionnaire survey, and the sample size of each city site was 400. The information about sociodemographic characteristics, sexual behaviors, the uses of PrEP and PEP and others were collected from the MSM, and blood samples were collected from them for HIV and syphilis testing. Results: A total of 2 815 MSM were investigated, the majority of them were aged less than 30 years (55.7%, 1 569/2 815), unmarried (68.6%, 1 931/2 815) and had education background of college and above (56.5%, 1 590/2 815). Only 9.2% (258/2 815) had used PrEP and 10.8% (305/2 815) had used PEP. Multivariate logistic regression showed that factors associated with high likelihood of PrEP use in MSM included age ≤30 years (aOR=4.04, 95%CI:1.25-13.01), self-perceived lower risk of HIV infection (aOR=1.76, 95%CI:1.16-2.68), group sex and commercial sex in the past six months (aOR=1.51, 95%CI: 1.10-2.09; aOR=1.69, 95%CI: 1.16-2.47), new-type drug use (aOR=1.53, 95%CI: 1.11-2.11), receiving peer education (aOR=1.56, 95%CI: 1.03-2.37), other people using PrEP (aOR=3.29, 95%CI: 2.48-4.36), and being HIV negative (aOR=8.40, 95%CI:1.12-63.12). Factor associated with low likelihood of PrEP use in MSM was anal sex with casual partner (aOR=0.67, 95%CI:0.49-0.90). Factors associated with high likelihood of PEP use in MSM included age under 50 years (≤30 years old: aOR=2.41, 95%CI:1.02-5.69; 31-49 years old: aOR=3.33, 95%CI:1.42-7.85), no self-perceived risk for HIV infection (aOR=1.87, 95%CI:1.12-3.11), group sex in the past six months (aOR=1.68, 95%CI:1.23-2.29), new-type drug use (aOR=3.86, 95%CI:2.94-5.07) and receiving no peer education (aOR=1.54, 95%CI:1.12-2.12). Conclusions: In Shandong, a higher proportion of MSM used PrEP and PEP. Peer education and self-perceived HIV infection risk education should be strengthened to increase the rates of PrEP and PEP use in MSM.
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Affiliation(s)
- X N Zhang
- Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
| | - K Yan
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - X D You
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - J H Li
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - N Zhang
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - G Y Wang
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - M Z Liao
- Department of AIDS/STD Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Ji'nan 250014, China
| | - W Ma
- Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
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13
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Zhang XN, Jiao KD, Su SL, Liao MZ, Ma W. [A study on quality of life and related factors among HIV-infected men who have sex with men based on latent profile analysis]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1290-1295. [PMID: 37661623 DOI: 10.3760/cma.j.cn112338-20221130-01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Objectives: To investigate the potential classification of quality of life in HIV-infected men who have sex with men (HIV-infected MSM) and to analyze possible influencing factors of different categories. Methods: A questionnaire survey was conducted among HIV-infected MSM who received antiretroviral treatment (ART) in an infectious disease hospital in Ji'nan, Shandong Province from October to December 2020. The quality of life scores in six domains were analyzed by latent profile analysis (LPA), and possible related factors of potential classification were explored by ordinal logistic regression analysis. Results: A total of 584 HIV-infected MSM were included in this study. LPA divided their quality of life into three categories, named low score, medium score and high score groups, accounting for 34.4% (201/584), 49.8% (291/584), and 15.8% (92/584), respectively. Multivariate ordinal logistic regression analysis showed that age above 40 years (aOR=1.77, 95%CI:1.11-2.80), monthly average income of 3 000 Yuan and below (aOR=3.15, 95%CI:1.72-5.76), monthly average income of 3 001-5 000 Yuan (aOR=2.26, 95%CI:1.41-3.62), distance to the hospital to receive drugs farer than 40 kms (aOR=1.76, 95%CI:1.07-2.89), and adverse reactions after taking drugs (aOR=2.31, 95%CI:1.65-3.23) were factors associated with low level of quality of life. Conclusions: The qualities of life of HIV-infected MSM showed group heterogeneity and were at high levels. Attention should be focused on HIV-infected MSM who are at older age, with low income, and long distance to access the health facilities. The measures should be taken to reduce the adverse reactions of ART drugs and improve the quality of life.
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Affiliation(s)
- X N Zhang
- Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
| | - K D Jiao
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China
| | - S L Su
- Department of AIDS/STD Control and Prevention, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
| | - M Z Liao
- Department of AIDS/STD Control and Prevention, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
| | - W Ma
- Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
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Liu HF, Pan XW, Li HQ, Zhang XN, Zhao XH. Amino Acid Composition of a Chum Salmon ( Oncorhynchus keta) Skin Gelatin Hydrolysate and Its Antiapoptotic Effects on Etoposide-Induced Osteoblasts. Foods 2023; 12:2419. [PMID: 37372630 DOI: 10.3390/foods12122419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/09/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
A gelatin hydrolysate with a hydrolysis degree of 13.7% was generated using the skin gelatin of chum salmon (Oncorhynchus keta) and papain-catalyzed enzymatic hydrolysis. The results of analysis demonstrated that four amino acids, namely Ala, Gly, Pro, and 4-Hyp, were the most abundant in the obtained gelatin hydrolysate with measured molar percentages ranging from 7.2% to 35.4%; more importantly, the four amino acids accounted for 2/3 of the total measured amino acids. However, two amino acids, Cys and Tyr, were not detected in the generated gelatin hydrolysate. The experimental results indicated that the gelatin hydrolysate at a dose of 50 µg/mL could combat etoposide-induced apoptosis in human fetal osteoblasts (hFOB 1.19 cells), causing a decrease in the total apoptotic cells from 31.6% to 13.6% (via apoptotic prevention) or 13.3% to 11.8% (via apoptotic reversal). Meanwhile, the osteoblasts exposed to the gelatin hydrolysate showed expression changes for 157 genes (expression folds > 1.5-fold), among which JNKK, JNK1, and JNK3 were from the JNK family with a 1.5-2.7-fold downregulated expression. Furthermore, the protein expressions of JNKK, JNK1, JNK3, and Bax in the treated osteoblasts showed a 1.25-1.41 fold down-regulation, whereas JNK2 expression was not detected in the osteoblasts. It is thus suggested that gelatin hydrolysate is rich in the four amino acids and has an in vitro antiapoptotic effect on etoposide-stimulated osteoblasts via mitochondrial-mediated JNKK/JNK(1,3)/Bax downregulation.
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Affiliation(s)
- Hong-Fang Liu
- Harbin Comprehensive Inspection and Detection Centre for Product Quality, Harbin 150036, China
| | - Xiao-Wen Pan
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Hua-Qiang Li
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Xiao-Nan Zhang
- School of Life Science, Jiaying University, Meizhou 514015, China
| | - Xin-Huai Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China
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Zhang XN, Gao Y, Zhang XY, Guo NJ, Hou WQ, Wang SW, Zheng YC, Wang N, Liu HM, Wang B. Detailed curriculum vitae of HER2-targeted therapy. Pharmacol Ther 2023; 245:108417. [PMID: 37075933 DOI: 10.1016/j.pharmthera.2023.108417] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 02/18/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 04/21/2023]
Abstract
With the booming development of precision medicine, molecular targeted therapy has been widely used in clinical oncology treatment due to a smaller number of side effects and its superior accuracy compared to that of traditional strategies. Among them, human epidermal growth factor receptor 2 (HER2)-targeted therapy has attracted considerable attention and has been used in the clinical treatment of breast and gastric cancer. Despite excellent clinical effects, HER2-targeted therapy remains in its infancy due to its resulting inherent and acquired resistance. Here, a comprehensive overview of HER2 in numerous cancers is presented, including its biological role, involved signaling pathways, and the status of HER2-targeted therapy.
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Affiliation(s)
- Xiao-Nan Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Ya Gao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Xi-Ya Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Ning-Jie Guo
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Wen-Qing Hou
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Shu-Wu Wang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Yi-Chao Zheng
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China
| | - Ning Wang
- The School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Hong-Min Liu
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China.
| | - Bo Wang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China; State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, China.
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Zhang XN, Cheng JL, Zhang Y, Song CR, Ma KR, Bai M, Wang KF, Mao XY. [Analysis of brain volume asymmetry and clinical application in patients with temporal lobe epilepsy with hippocampal sclerosis based on automatic brain segmentation]. Zhonghua Yi Xue Za Zhi 2023; 103:991-998. [PMID: 36990715 DOI: 10.3760/cma.j.cn112137-20220801-01673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Objective: To analyze whole brain structural volume asymmetry in temporal lobe epilepsy with hippocampal sclerosis (TLE-HS) using automated brain segmentation technology, and to investigate the application value of this technology in the diagnosis of TLE-HS and the performance in determining the location the lateralization of epileptogenic focus. Methods: Twenty-eight patients with TLE-HS were enrolled in the First Affiliated Hospital of Zhengzhou University from April 2019 to October 2020, including 13 females and 15 males, aged ranged from 18 to 63 (30±12) years, and these patients were divided two group according to the epilepsy lateralization, left TLE-HS(LTLE-HS) group (n=11), right TLE-HS(RTLE-HS) group (n=17) and 28 normal controls [aged ranged from 18 to 49 (29±10) years]. All of these subjects underwent three-dimensional T1 weighted image (3D T1WI). The differences of brain structure and volumes in LTLE-HS, RTLE-HS and normal controls group were retrospectively analyzed, and Pearson's correlation coefficient was used to evaluate the left and right volume correlations, and effect size was used for evaluating the differences in left and right volume averages. The asymmetry index (AI) of the left and right lateral volumes in each group was also calculated and compared among the three groups. Results: Standard volumes of all structures within the brain were asymmetric in the normal controls, LTLE-HS, and RTLE-HS groups, with smaller volumes of ipsilateral hippocampus than contralateral hippocampus in both the LTLE-HS and RTLE-HS groups(0.20%±0.03% vs 0.24%±0.02%,0.21%±0.03% vs 0.25%±0.02% respectively;both P<0.001), and smaller volumes of gray and white matter of the ipsilateral temporal lobe than contralateral in the LTLE-HS group(4.41%±0.38% vs 5.01%±0.43%,1.83%±0.22 % vs 2.22%±0.14%;both P<0.001). There was a moderate to strong linear correlation (0.553<r<0. 964,all P<0.05) between left and right lateral volumes in the normal controls, LTLE-HS, and RTLE-HS groups. All three groups showed the largest effect sizes in the cingulate gyrus (The effect sizes were 3.07, 4.85 and 4.22 in control, LTLE-HS and RTLE-HS, respectively.). The AI values of the hippocampus, temporal lobe gray matter, and temporal lobe white matter were statistically different among the three groups (-1.48±8.64 vs 15.91±10.15 vs -17.59±10.00, 7.46±2.67 vs 12.67±6.67 vs 3.67±6.15, 6.53±3.71 vs 19.91±9.85 vs 1.57±8.38;all P<0.001). Conclusion: Volumetric measurements by automated brain segmentation techniques can play an important role in preoperative assessment of TLE, and the asymmetry of brain volume may be of value in determining the localization and extent of the epileptogenic focus.
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Affiliation(s)
- X N Zhang
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J L Cheng
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Zhang
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C R Song
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - K R Ma
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Bai
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - K F Wang
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Y Mao
- Department of MRI, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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17
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Abstract
Poly-ADP-ribose (PAR) is a natural type of polymer derived from enzymatic reactions catalyzed by cellular poly(ADP-ribose) polymerases (PARPs). Given its notable solubility and biocompatibility, the PAR polymer may function as effective carriers for therapeutics in addition to modulating biomolecular interactions in cells. To explore its therapeutic potential, we herein developed a PAR polymer-based bispecific antibody targeting both human epidermal growth factor receptor 2 (HER2) and T-cell CD3 antigens. This was accomplished by conjugating anti-HER2 and anti-CD3 monoclonal antibodies to azido-functionalized PAR polymers through click chemistry. The generated PAR polymer-anti-HER2/anti-CD3 antibody conjugate could not only bind specifically to both HER2- and CD3-expressing target cells but also display potent cytotoxicity against HER2-positive breast cancer cells in the presence of non-activated human peripheral blood mononuclear cells (PBMCs). Functionalized PAR polymers provide a new strategy for synthesizing bispecific antibodies and may enable generation of PAR polymer-based conjugates with unique pharmacological activities for biomedical applications.
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Affiliation(s)
- Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Jiawei Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Jingwen Chen
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Yiling Wang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089
- Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089
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18
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Zheng YC, Kang HQ, Wang B, Zhu YZ, Mamun MAA, Zhao LF, Nie HQ, Liu Y, Zhao LJ, Zhang XN, Gao MM, Jiang DD, Liu HM, Gao Y. Curriculum vitae of HDAC6 in solid tumors. Int J Biol Macromol 2023; 230:123219. [PMID: 36642357 DOI: 10.1016/j.ijbiomac.2023.123219] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [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: 10/25/2022] [Revised: 01/05/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023]
Abstract
Histone deacetylase 6 (HDAC6) is the only member of the HDAC family that resides primarily in the cytoplasm with two catalytic domains and a ubiquitin-binding domain. HDAC6 is highly expressed in various solid tumors and participates in a wide range of biological activities, including hormone receptors, the p53 signaling pathway, and the kinase cascade signaling pathway due to its unique structural foundation and abundant substrate types. Additionally, HDAC6 can function as an oncogenic factor in solid tumors, boosting tumor cell proliferation, invasion and metastasis, drug resistance, stemness, and lowering tumor cell immunogenicity, so assisting in carcinogenesis. Pan-HDAC inhibitors for cancer prevention are associated with potential cardiotoxicity in clinical investigations. It's interesting that HDAC6 silencing didn't cause any significant harm to normal cells. Currently, the use of HDAC6 specific inhibitors, individually or in combination, is among the most promising therapies in solid tumors. This review's objective is to give a general overview of the structure, biological functions, and mechanism of HDAC6 in solid tumor cells and in the immunological milieu and discuss the preclinical and clinical trials of selective HDAC6 inhibitors. These endeavors highlight that targeting HDAC6 could effectively kill tumor cells and enhance patients' immunity during solid tumor therapy.
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Affiliation(s)
- Yi-Chao Zheng
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Hui-Qin Kang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Bo Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China; Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Yuan-Zai Zhu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - M A A Mamun
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Long-Fei Zhao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Hai-Qian Nie
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Ying Liu
- Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan 450001, China
| | - Li-Juan Zhao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Xiao-Nan Zhang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Mei-Mei Gao
- Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan 450001, China
| | - Dan-Dan Jiang
- Department of Pharmacy, People's Hospital of Henan Province, Zhengzhou University, Henan 450001, China
| | - Hong-Min Liu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China.
| | - Ya Gao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China.
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Wang FF, Zhang XN, Wang XJ. Magnetic resonance imaging analysis of embryonal rhabdomyosarcoma of the prostate. Technol Health Care 2023; 31:2243-2250. [PMID: 37545270 DOI: 10.3233/thc-230192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
BACKGROUND Rhabdomyosarcoma (RMS) is a highly malignant tumor that originates from myogenic progenitor cells. OBJECTIVE To investigate the magnetic resonance imaging (MRI) characteristics of prostate embryonal rhabdomyosarcoma (ERMS). METHODS We retrospectively analyzed the clinical and MRI imaging data of 9 cases of prostate ERMS that were confirmed pathologically. The patients were aged between 14∼49 years with a median age of 27 years, and they all underwent MRI, diffusion-weighted imaging (DWI), and dynamic contrast-enhanced MRI (DCE-MRI). RESULTS The MRI scan of the lesions showed an irregular shape, mixed signals, uneven equal/long T1 signal and an equal/long T2 signal, cystic necrosis in 9 cases and hemorrhage in 6 cases; DWI and ADC images showed a mixed high/low signal, and the tumor parenchyma showed ADC low signal, with an average ADC value of 0.666 × 10-3 mm2/s. There were 5 cases of DCE-MRI TIC type II and 4 cases of DCE-MRI TIC type I. The average value of Tpeak was 120 s and the average value of MCER was 172.3%. After the enhancement, the signal of tumor enhancement was uneven, and showed patchy and reticular enhancement, however, the cyst degeneration, necrosis area, and hemorrhage focus were not enhanced. There were 3 cases with multiple pelvic lymph nodes and 1 case with multiple bone metastases. CONCLUSION The MRI manifestations of prostate ERMS have certain characteristics, and the combination of DWI and DCE-MRI are helpful in the diagnosis.
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20
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Abstract
Poly-ADP-ribose (PAR) is a naturally occurring form of polymers synthesized through enzymatic reactions catalyzed by poly(ADP-ribose) polymerases (PARPs). It is known for regulating various important cellular signaling pathways and processes. As a water soluble and biocompatible type of polymer, PAR may hold promise for safe and efficient delivery of therapeutics. To explore the therapeutic potential of PAR polymers, we herein generate PAR polymers conjugated with human granulocyte colony-stimulating factor (GCSF) protein by harnessing human PARP1-catalyzed auto-poly-ADP-ribosylation and a clickable analogue of nicotinamide adenine dinucleotide (NAD+). The resulting PAR polymer-based conjugate with multivalent GCSF ligands exhibits a potent cell proliferative activity. Notably, mice treated with a single dose of the PAR polymer-GCSF conjugate show sustained high levels of neutrophil in blood for 11 days, demonstrating excellent in vivo efficacy. Functionalized PAR polymers may provide new scaffolds for conjugating with therapeutic proteins or peptides toward improved pharmacological activities.
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Affiliation(s)
- Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Lei Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Jingwen Chen
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Yiling Wang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089,
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21
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Sun C, Wang Z, Hu L, Zhang X, Chen J, Yu Z, Liu L, Wu M. Targets of statins intervention in LDL-C metabolism: Gut microbiota. Front Cardiovasc Med 2022; 9:972603. [PMID: 36158845 PMCID: PMC9492915 DOI: 10.3389/fcvm.2022.972603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Increasing researches have considered gut microbiota as a new “metabolic organ,” which mediates the occurrence and development of metabolic diseases. In addition, the liver is an important organ of lipid metabolism, and abnormal lipid metabolism can cause the elevation of blood lipids. Among them, elevated low-density lipoprotein cholesterol (LDL-C) is related with ectopic lipid deposition and metabolic diseases, and statins are widely used to lower LDL-C. In recent years, the gut microbiota has been shown to mediate statins efficacy, both in animals and humans. The effect of statins on microbiota abundance has been deeply explored, and the pathways through which statins reduce the LDL-C levels by affecting the abundance of microbiota have gradually been explored. In this review, we discussed the interaction between gut microbiota and cholesterol metabolism, especially the cholesterol-lowering effect of statins mediated by gut microbiota, via AMPK-PPARγ-SREBP1C/2, FXR and PXR-related, and LPS-TLR4-Myd88 pathways, which may help to explain the individual differences in statins efficacy.
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Affiliation(s)
- ChangXin Sun
- Beijing University of Chinese Medicine, Beijing, China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - ZePing Wang
- Beijing University of Chinese Medicine, Beijing, China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - LanQing Hu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - XiaoNan Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - JiYe Chen
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - ZongLiang Yu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - LongTao Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: LongTao Liu
| | - Min Wu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Min Wu
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22
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Zhang XN, Yu ZL, Chen JY, Li XY, Wang ZP, Wu M, Liu LT. The crosstalk between NLRP3 inflammasome and gut microbiome in atherosclerosis. Pharmacol Res 2022; 181:106289. [PMID: 35671922 DOI: 10.1016/j.phrs.2022.106289] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/22/2022] [Accepted: 06/01/2022] [Indexed: 01/29/2023]
Abstract
Atherosclerosis (AS) is chronic pathological process based on the inflammatory reaction associated with factors including vascular endothelial dysfunction, inflammation, and autoimmunity. Inflammasomes are known to be at the core of the inflammatory response. As a pattern recognition receptor of innate immunity, the NLRP3 inflammasome mediates the secretion of inflammatory factors by activating the Caspase-1, which is important for maintaining the immune system and regulating the gut microbiome, and participates in the occurrence and development of AS. The intestinal microecology is composed of a large number of complex structures of gut microbiota and its metabolites, which play an important role in AS. The gut microbiota and its metabolites regulate the activation of the NLRP3 inflammasome. Targeting the NLRP3 inflammasome and regulating intestinal microecology represent a new direction for the treatment of AS. This paper systematically reviews the interaction between the NLRP3 inflammasome and gut microbiome in AS, strategies for targeting the NLRP3 inflammasome and gut microbiome for the treatment of AS, and provides new ideas for the research and development of drugs for the treatment of AS.
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Affiliation(s)
- Xiao-Nan Zhang
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China
| | - Zong-Liang Yu
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China
| | - Ji-Ye Chen
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China
| | - Xiao-Ya Li
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China; Department of Cardiovascular Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ze-Ping Wang
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China; Department of Cardiovascular Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Min Wu
- Department of comprehensive Internal Medicine, Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Long-Tao Liu
- Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100093, China.
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23
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Cai SQ, Tang ZM, Xiong C, Wu FF, Zhao JR, Zhang Q, Wang L, Zhang XN, Zhao XH. The anti-inflammatory effects of apigenin and genistein on the rat intestinal epithelial (IEC-6) cells with TNF-α stimulation in response to heat treatment. Curr Res Food Sci 2022; 5:918-926. [PMID: 36686365 PMCID: PMC9846340 DOI: 10.1016/j.crfs.2022.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/30/2022] [Accepted: 05/20/2022] [Indexed: 01/25/2023] Open
Abstract
The aims of the present study were to investigate the anti-inflammatory function of two flavonoids apigenin and genistein in rat intestinal epithelial (IEC-6) cells stimulated by tumor necrosis factor-alpha (TNF-α) and to clarify whether the heat treatment of the flavonoids might affect flavonoid activity. The flavonoids at lower dosage (e.g. 5 μmol/L) had no toxic effect but growth promotion on the cells. Meanwhile, the flavonoid pretreatment of the cells before TNF-α stimulation could maintain cellular morphology, decrease the production of prostaglandin E2 and two pro-inflammatory cytokines interleukin-1β (IL-1β) and IL-6, but increase the production of two anti-inflammatory cytokines IL-10 and transforming growth factor-β. Additionally, the flavonoids could block off the nuclear translocation of nuclear factor-kappaB (NF-κB) p65, and suppress the expression of phosphorylated IκBα and p65 induced by TNF-α. Meanwhile, the NF-κB inhibitor BAY 11-7082 shared a similar function with the flavonoids to mediate the production of IL-6/IL-10. Furthermore, in silico analysis also declared that the flavonoids could interact with the IκBα-NF-κB complex at the binding pockets to yield the binding energies ranging from -31.7 to -34.0 kJ/mol. However, the heated flavonoids were consistently less effective than the unheated counterparts to perform these anti-inflammatory effects. It is thus proposed that both apigenin and genistein have anti-inflammatory potential to the TNF-α-stimulated IEC-6 cells by inactivating the NF-κB pathway, while heat treatment of the flavonoids caused a negative impact on these assessed anti-inflammatory effects.
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Affiliation(s)
- Shi-Qing Cai
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Zhi-Mei Tang
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Cen Xiong
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Fei-Fei Wu
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Jun-Ren Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Qiang Zhang
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Li Wang
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China
| | - Xiao-Nan Zhang
- School of Life Science, Jiaying University, 514015, Meizhou, PR China
| | - Xin-Huai Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China,Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, 150030, Harbin, PR China,Corresponding author. School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000, Maoming, PR China.
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24
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Pan AX, Liu YZ, Hai Y, Guan L, Zhang XN, Ding HT, Li Y, Wu BC, Lu HY. [Application of cortical bone trajectory screw and sacral alar screw internal fixation for surgical treatment of lumbar adjacent segment degeneration]. Zhonghua Yi Xue Za Zhi 2022; 102:1297-1302. [PMID: 35488699 DOI: 10.3760/cma.j.cn112137-20211121-02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the application of cortical bone trajectory screw (CBTS) and sacral alar screw (SAS) internal fixation in the treatment of lumbar adjacent segment degeneration (ASD) and evaluate its clinical effect. Methods: Data of 24 patients who were diagnosed with ASD and treated by CBTS or SAS in Beijing Chaoyang Hospital were retrospectively reviewed. There were 14 males and 10 females with a mean age of (67.9±8.2) years. The patients were followed-up for (2.6±0.4) years. Perioperative parameters including operation time, intraoperative blood loss and postoperative time on the ground were counted. All patients were followed-up for at least 2 years. Visual analogue scale (VAS) and the Oswestry disability index (ODI) were compared between pre-operation and at the last follow-up. The internal fixation-related complications, pseudarthrosis and adjacent re-degeneration were evaluated in the follow-up. Results: There were 14 proximal ASD patients, 8 distal ASD patients, 1 both ends ASD patient and 1 ASD patient in between the fusion surgeries. Bone mineral density (BMD) T score of the adjacent vertebrae was -1.98±0.91 on average. The ASD patients were re-operated with CBTS and SAS internal fixation technique. A small incision was made in the revision surgery and the original fixation was not completely cut open and removed. The mean operation time was (125±36) min, mean blood loss was (85±33) ml. The postoperative ambulation time was (3.1±1.9) days, and the hospitalization time was (9.0±2.6) days. Before the operation, the average VAS (back pain) score was 5.2±1.0, the average of VAS (leg pain) score was 6.8±1.9 and ODI was 56.6%±12.8%. VAS score was reduced to 1.4±0.6 (waist pain) and 0.9±0.4 (leg pain). ODI was improved to 13.8%±6.3%. All the difference between preoperative and the last follow-up was statically significant (all P<0.01). No internal fixation failure, pseudarthrosis and adjacent re-degeneration were observed in the final follow-up. Conclusion: The application of CBTS and SAS internal fixation techniques in the surgical treatment of lumbar ASD has the advantages of less trauma, faster postoperative recovery, reliable internal fixation, and fewer complications, especially in patients with low bone mineral density.
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Affiliation(s)
- A X Pan
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Z Liu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Hai
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - L Guan
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X N Zhang
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - H T Ding
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Li
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - B C Wu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - H Y Lu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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Liu JW, Zhang XN. [Recent advances in diagnosis of pulmonary nodule]. Zhonghua Wai Ke Za Zhi 2022; 60:498-503. [PMID: 35359092 DOI: 10.3760/cma.j.cn112139-20211123-00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
With the popularization of health screening and the widespread use of low-dose computed tomography, the detection rate of lung nodules has increased year after year. However, the false positive rates testified by surgery of these lung nodules are still high. Therefore, it is vital in clinical practice to avoid overtreatment or undertreatment. But a series of problems on how to make an accurate diagnosis, how to reduce the psychological pressure of patients and follow up with regular imaging, how to clarify the indications for surgery and adopt the most minimally invasive diagnosis and treatment methods, etc. remain unsolved. Over the past decade, the diagnostic techniques for pulmonary nodules have improved significantly, including imaging progress such as the optimization of traditional imaging techniques (CT, MRI) and the emergence of new technologies (radiomics, artificial intelligence). In addition, histological improvements including percutaneous transthoracic needle biopsy, bronchoscopy, and minimally invasive surgical biopsy, etc. have brought more reliable and precise options for characterization of pulmonary nodules.
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Affiliation(s)
- J W Liu
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X N Zhang
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
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Zhang XN, Li YY, Zhang YH, Zhang WQ, Zhu YP, Zhang JP, Lv SC, Liu LT. Shengmai San for Treatment of Cardiotoxicity from Anthracyclines: A Systematic Review and Meta-Analysis. Chin J Integr Med 2022; 28:374-383. [PMID: 35357681 DOI: 10.1007/s11655-022-2884-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To systematically evaluate the efficacy of Shengmai San in patients with cardiotoxicity of anthracyclines. METHODS Randomized controlled trials (RCTs) were identified by searching China National Knowledge Infrastructure (CNKI), Wanfang Database, Chinese Biomedical Literature Database (CBM), PubMed, Cochrane Library, and Embase Databases from the inceptions until December 2020. The Cochrane Handbook was used to evaluate the risk of bias in the included studies. Data analysis was conducted using RevMan 5.3 software. RESULTS Totally 19 RCTs with 2,331 participants were included in this review. Results showed that in improving arrhythmia (13 RCTs, n=1,877, RR=0.37, 95%CI 0.25 to 0.52, P<0.00001), the treatment group was superior to the control group. In terms of reducing left ventricular end-diastolic diameter (LVEDD, 2 RCTs, n=128, MD=-0.79, 95%CI -0.93 to -0.65, P<0.00001) and left ventricular end systolic diameter (LVESD, 2 RCTs, n=128, MD=-0.58, 95%CI -0.82 to -0.35, P<0.00001), the treatment group was also better than the control group. In reducing myocardial enzymes such as creatine kinase (CK) [(3 RCTs, n=256, SMD=-0.80, 95%CI -1.16 to -0.44, P<0.0001), (2 RCTs, n=126, SMD=-0.62, 95%CI -0.98 to -0.26, P=0.0007)], the treatment group was superior to the control group. CONCLUSION Shengmai San has a positive effect on the treatment of cardiotoxicity from anthracyclines. However, in the future, it is still necessary to conduct high-quality RCTs to verify its efficacy.
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Affiliation(s)
- Xiao-Nan Zhang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Yan-Yang Li
- Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China
| | - Yuan-Hui Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300112, China
| | - Wan-Qin Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300112, China
| | - Ya-Ping Zhu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300112, China
| | - Jun-Ping Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300112, China
| | - Shi-Chao Lv
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300112, China
| | - Long-Tao Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
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Liu J, Dong BF, Wang PS, Ren PY, Xue S, Zhang XN, Han Z, Chen G. [Retracted] Silencing NOB1 enhances doxorubicin antitumor activity of the papillary thyroid carcinoma in vitro and in vivo. Oncol Rep 2022; 47:86. [PMID: 35234269 PMCID: PMC8931839 DOI: 10.3892/or.2022.8297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 12/23/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Jia Liu
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Bing-Fei Dong
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Pei-Song Wang
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Pei-You Ren
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Shuai Xue
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiao-Nan Zhang
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhe Han
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Guang Chen
- Department of Thyroid Surgery, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Yu YH, Wang L, Zhang Q, Zhang XN, Zhao XH. Activities of the soluble and non-digestible longan (Dimocarpus longan Lour.) polysaccharides against HCT-116 cells as affected by a chemical selenylation. Curr Res Food Sci 2022; 5:1071-1083. [PMID: 35799859 PMCID: PMC9253915 DOI: 10.1016/j.crfs.2022.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 06/01/2022] [Accepted: 06/19/2022] [Indexed: 11/02/2022] Open
Abstract
The soluble and non-digestible longan (Dimocarpus longan Lour.) polysaccharides (LP) with Se content less than 0.01 g/kg were extracted and selenylated chemically with the HNO3–Na2SeO3 system, to prepare two selenylated products namely SeLP1 and SeLP2 with enhanced Se contents of 1.46 and 4.79 g/kg, respectively. LP, SeLP1, and SeLP2 were then measured and compared for their saccharide features and bioactivity in human colon carcinoma HCT-116 cells. Compared with LP, both SeLP1 and SeLP2 contained more neutral saccharides, but showed reduced uronic acid content and undetectable sulfate. Moreover, SeLP1 and especially SeLP2 in the cells showed higher activities than LP, reflected by their enhanced capacity to inhibit cell growth, alter cell morphology, and suppress cell colony formation. Compared with LP, SeLP1 and especially SeLP2 were also more capable of promoting intracellular reactive oxygen species and Ca2+ levels, causing mitochondrial membrane potential loss, or inducing cell apoptosis via up- and down-regulating the eight apoptosis-related genes and proteins. Overall, the performed chemical selenylation of LP resulted in obvious changes in these saccharide features and simultaneously enhanced the anti-cancer activity of the selenylated products against the cells clearly, while a higher selenylation extent of the selenylated products consistently caused higher activity towards the cells. The results of this study thus highlighted that this chemical selenylation is applicable when aiming to enhance the bioactivities of natural polysaccharides. Chemical selenylation of longan polysaccharides causes Se conjugation covalently. The selenylated polysaccharides have changes in saccharide features and sulfate. The selenylated polysaccharides have higher activities to HCT-116 cells. Higher polysaccharide selenylation consistently leads to activity increase in cells.
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Zhang XN, Lam AT, Cheng Q, Courouble VV, Strutzenberg TS, Li J, Wang Y, Pei H, Stiles BL, Louie SG, Griffin PR, Zhang Y. Discovery of an NAD+ analogue with enhanced specificity for PARP1. Chem Sci 2022; 13:1982-1991. [PMID: 35308855 PMCID: PMC8848837 DOI: 10.1039/d1sc06256e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/21/2022] [Indexed: 12/23/2022] Open
Abstract
Among various protein posttranslational modifiers, poly-ADP-ribose polymerase 1 (PARP1) is a key player for regulating numerous cellular processes and events through enzymatic attachments of target proteins with ADP-ribose units donated by nicotinamide adenine dinucleotide (NAD+). Human PARP1 is involved in the pathogenesis and progression of many diseases. PARP1 inhibitors have received approvals for cancer treatment. Despite these successes, our understanding about PARP1 remains limited, partially due to the presence of various ADP-ribosylation reactions catalyzed by other PARPs and their overlapped cellular functions. Here we report a synthetic NAD+ featuring an adenosyl 3′-azido substitution. Acting as an ADP-ribose donor with high activity and specificity for human PARP1, this compound enables labelling and profiling of possible protein substrates of endogenous PARP1. It provides a unique and valuable tool for studying PARP1 in biology and pathology and may shed light on the development of PARP isoform-specific modulators. An analogue of nicotinamide adenine dinucleotide (NAD+) featuring an azido group at 3′-OH of adenosine moiety is found to possess high specificity for human PARP1-catalyzed protein poly-ADP-ribosylation.![]()
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Affiliation(s)
- Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Albert T. Lam
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Valentine V. Courouble
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL 33458, USA
| | | | - Jiawei Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Yiling Wang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Bangyan L. Stiles
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Stan G. Louie
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Patrick R. Griffin
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA
- Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089, USA
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Ding HT, Liu YZ, Hai Y, Guan L, Pan AX, Zhang XN, Han B, Li Y. [Clinical application of sacral alar screw fixation in surgical treatment of lumbosacral degenerative disease]. Zhonghua Yi Xue Za Zhi 2021; 101:3718-3723. [PMID: 34856699 DOI: 10.3760/cma.j.cn112137-20210422-00966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To verify the safety and feasibility of sacral alar screw fixation and fusion surgery in lumbosacral area. Methods: The clinical and radiological data of patients receiving L5/S1 single-level cortical bone trajectory screw combined with sacral alar screw decompression fixation and fusion in Beijing Chaoyang Hospital due to lumbar spinal stenosis from January 2019 to January 2020 were retrospectively analyzed. The clinical data included operation duration, intraoperative blood loss, postoperative drainage, pain and function scores during follow-up. The radiological data included preoperative and postoperative follow-up X-rays and three-dimensional reconstruction of lumbar spine CT. The fusion status and complication of internal fixation, such as screw loosening and fixation failure were evaluated by the radiological examination. Results: According to the inclusion and exclusion criteria, a total of 16 patients (7 males and 9 females) were included, with an average age of (69.6±5.2) years. The patients were followed-up for (16.2±1.7) months. The average operation duration was (144±21) min, the intraoperative blood loss was (103±20) ml, and the postoperative drainage was (80±34) ml. The patient's low back pain visual analogue scale (VAS) score was 6.8±1.0 before surgery, and it was improved to 0.9±0.7 at the last follow-up; leg pain VAS score was 6.1±0.9 before the operation and it improved to 0.9±0.7 at the last follow-up; Oswestry disability index (ODI) function score was 66.2%±8.0% before the surgery and it decreased to 26.6%±7.2% at the last follow-up. No neurological complications, surgical site infection, screw loosening, internal fixation failure or cage displacement were observed during the follow-up. The fusion rate was 68.8% (11/16) at 6 months post operation. Conclusion: It is safe, feasible and effective to apply cortical screws combined with sacral alar screws in short-segment decompression, fixation and fusion surgery on the lumbosacral region to treat lumbosacral spinal stenosis.
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Affiliation(s)
- H T Ding
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Z Liu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Hai
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - L Guan
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - A X Pan
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X N Zhang
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - B Han
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Li
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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31
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Yuan S, Wang B, Dai QQ, Zhang XN, Zhang JY, Zuo JH, Liu H, Chen ZS, Li GB, Wang S, Liu HM, Yu B. Discovery of New 4-Indolyl Quinazoline Derivatives as Highly Potent and Orally Bioavailable P-Glycoprotein Inhibitors. J Med Chem 2021; 64:14895-14911. [PMID: 34546748 DOI: 10.1021/acs.jmedchem.1c01452] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The major drawbacks of P-glycoprotein (P-gp) inhibitors at the clinical stage make the development of new P-gp inhibitors challenging and desirable. In this study, we reported our structure-activity relationship studies of 4-indolyl quinazoline, which led to the discovery of a highly effective and orally active P-gp inhibitor, YS-370. YS-370 effectively reversed multidrug resistance (MDR) to paclitaxel and colchicine in SW620/AD300 and HEK293T-ABCB1 cells. YS-370 bound directly to P-gp, did not alter expression or subcellular localization of P-gp in SW620/AD300 cells, but increased the intracellular accumulation of paclitaxel. Furthermore, YS-370 stimulated the P-gp ATPase activity and had moderate inhibition against CYP3A4. Significantly, oral administration of YS-370 in combination with paclitaxel achieved much stronger antitumor activity in a xenograft model bearing SW620/Ad300 cells than either drug alone. Taken together, our data demonstrate that YS-370 is a promising P-gp inhibitor capable of overcoming MDR and represents a unique scaffold for the development of new P-gp inhibitors.
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Affiliation(s)
- Shuo Yuan
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Bo Wang
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Qing-Qing Dai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xiao-Nan Zhang
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Jing-Ya Zhang
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Jia-Hui Zuo
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Hui Liu
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Zhe-Sheng Chen
- College of Pharmacy and Health Sciences, St. John's University, Queens, New York 11439, United States
| | - Guo-Bo Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shaomeng Wang
- Departments of Internal Medicine, Pharmacology, and Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hong-Min Liu
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Bin Yu
- School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
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Zhang XN, Bai M, Ma KR, Zhang Y, Song CR, Zhang ZX, Cheng JL. The Value of Magnetic Resonance Imaging Histograms in the Preoperative Differential Diagnosis of Endometrial Stromal Sarcoma and Degenerative Hysteromyoma. Front Surg 2021; 8:726067. [PMID: 34568419 PMCID: PMC8461251 DOI: 10.3389/fsurg.2021.726067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/26/2021] [Indexed: 01/31/2023] Open
Abstract
Objective: The present study aimed to explore the application value of magnetic resonance imaging (MRI) histograms with multiple sequences in the preoperative differential diagnosis of endometrial stromal sarcoma (ESS) and degenerative hysteromyoma (DH). Methods: The clinical and preoperative MRI data of 20 patients with pathologically confirmed ESS and 24 patients with pathologically confirmed DH were retrospectively analyzed, forming the two study groups. Mazda software was used to select the MRI layer with the largest tumor diameter in T2WI, the apparent diffusion coefficient (ADC), and enhanced T1WI (T1CE) images. The region of interest (ROI) was outlined for gray-scale histogram analysis. Nine parameters—the mean, variance, kurtosis, skewness, 1st percentile, 10th percentile, 50th percentile, 90th percentile, and 99th percentile—were obtained for intergroup analysis, and the receiver operating curves (ROCs) were plotted to analyze the differential diagnostic efficacy for each parameter. Results: In the T2WI histogram, the differences between the two groups in seven of the parameters (mean, skewness, 1st percentile, 10th percentile, 50th percentile, 90th percentile, and 99th percentile) were statistically significant (P < 0.05). In the ADC histogram, the differences between the two groups in three of the parameters (skewness, 10th percentile, and 50th percentile) were statistically significant (P < 0.05). In the T1CE histogram, no significant differences were found between the two groups in any of the parameters (all P > 0.05). Of the nine parameters, the 50th percentile was found to have the best diagnostic efficacy. In the T2WI histogram, ROC curve analysis of the 50th percentile yielded the best area under the ROC curve (AUC; 0.742), sensitivity of 70%, and specificity of 83.3%. In the ADC histogram, ROC curve analysis of the 50th percentile yielded the best area under the ROC curve (AUC; 0.783), sensitivity of 81%, and specificity of 76.9%. Conclusion: The parameters of the mean, 10th percentile and 50th percentile in the T2WI histogram have good diagnostic efficacy, providing new methods and ideas for clinical diagnosis.
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Affiliation(s)
- Xiao-Nan Zhang
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Man Bai
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ke-Ran Ma
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yong Zhang
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Cheng-Ru Song
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zan-Xia Zhang
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing-Liang Cheng
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Wang XR, Hu XH, Li Z, Li BK, Niu WB, Zhou CX, Yu B, Zhang ZY, Zhang XN, Gao Y, Wang GY. [Treatment strategy of gastrointestinal stromal tumors in the background of COVID-19]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:825-829. [PMID: 34530566 DOI: 10.3760/cma.j.cn.441530-20210213-00064] [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: 01/12/2023]
Abstract
COVID-19, caused by SARS-COV-2, has the characteristics of world epidemic, highly infectious and large base of death. In China, transmission route of SARS-COV-2 has been contained so effectively that COVID-19 has been well controlled due to the proactive national prevention and control strategy. However, not only does it bring a huge impact on the existing medical structure model, but also an objective impact on the treatment of patients with chronic diseases such as malignant tumors. Based on the progress reported in the domestic and international literatures and the actual management experience of our team, this paper reflects on the treatment strategies for patients with gastrointestinal stromal tumor (GIST) during the epidemic period of COVID-19. We focus on risk stratification for primary GIST and forming treatment strategies accordingly. Major considerations include the impact of delayed operation, the burden of medical resources, the waiting time for elective operation, and the principle of emergency operation. In addition, we focus on the level of evidence for non-surgical approaches with a view to developing a holistic strategy of "priority management principles" to guide clinical treatment in the context of limited resources and different GIST priorities.
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Affiliation(s)
- X R Wang
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - X H Hu
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - Z Li
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - B K Li
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - W B Niu
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - C X Zhou
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - B Yu
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - Z Y Zhang
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - X N Zhang
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - Y Gao
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
| | - G Y Wang
- The Second General Surgery, the Fourth Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China Department of Gastrointestinal Surgery, the Third Hospital of Hebei Medical University, Hebei Shijiazhuang 050000, China
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Dai Z, Zhang XN, Cheng Q, Fei F, Hou T, Li J, Abdolvahabi A, Watanabe J, Pei H, Smbatyan G, Xie J, Lenz HJ, Louie SG, Zhang Y. Site-specific antibody-drug conjugates with variable drug-to-antibody-ratios for AML therapy. J Control Release 2021; 336:433-442. [PMID: 34197861 PMCID: PMC8373670 DOI: 10.1016/j.jconrel.2021.06.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/02/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 11/16/2022]
Abstract
Random conjugations of chemotherapeutics to monoclonal antibodies result in heterogeneous antibody-drug conjugates (ADCs) with suboptimal pharmacological properties. We recently developed a new technology for facile generation of homogeneous ADCs by harnessing human CD38 catalytic domain and its dinucleotide-derived covalent inhibitor, termed ADP-ribosyl cyclase-enabled ADCs (ARC-ADCs). Herein we advance this technology by designing and synthesizing ARC-ADCs with customizable drug-to-antibody ratios (DARs). Through varying numbers and locations of CD38 fused to an antibody targeting human C-type lectin-like molecule-1 (hCLL-1), ARC-ADCs featuring DARs of 2 and 4 were rapidly generated via a single step with cytotoxic monomethyl auristatin F (MMAF) as payloads. In contrast to anti-hCLL-1 ARC-ADC carrying 2 drug molecules, anti-hCLL-1 ARC-ADC with a DAR of 4 shows highly potent activity in killing hCLL-1-positive acute myeloid leukemia (AML) cells both in vitro and in vivo. This work provides novel ADC candidates for combating AML and supports ARC-ADC as a general and versatile approach for producing site-specific ADCs with defined DARs.
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Affiliation(s)
- Zhefu Dai
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Fan Fei
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Tianling Hou
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Jiawei Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Alireza Abdolvahabi
- Mass Spectrometry Core Facility, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Junji Watanabe
- Translational Research Laboratory, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Goar Smbatyan
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Jianming Xie
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Heinz-Josef Lenz
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Stan G Louie
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA; Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089, USA.
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35
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Zhang XN, Zhang Y, Wen BH, Cheng JL. The application of 3.0T conventional Magnetic Resonance Imaging and T 2 mapping imaging in tiny stone foreign bodies in open ocular trauma. Asian J Surg 2021; 44:1295-1296. [PMID: 34284908 DOI: 10.1016/j.asjsur.2021.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- Xiao-Nan Zhang
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yong Zhang
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Bao-Hong Wen
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jing-Liang Cheng
- Department of Magnetic Resonance, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Li J, Li ML, Zhu TT, Zhang XN, Li MF, Wei JH. Integrated transcriptomics and metabolites at different growth stages reveals the regulation mechanism of bolting and flowering of Angelica sinensis. Plant Biol (Stuttg) 2021; 23:574-582. [PMID: 33660347 DOI: 10.1111/plb.13249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 12/07/2020] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
The root of Angelica sinensis is one of the most widely used traditional Chinese medicines. In commercial planting, early bolting and flowering (EBF) of ca. 40% of 2-year-old plants reduces root yield and quality. Although changes in physiology in bolted plants have been investigated, the mechanism activating EBF has not been identified. Here, transcriptomics profiles at four different growth stages (S1 to S4) were performed, gene expression was validated by qRT-PCR and the accumulation of endogenous hormones quantified by HPLC. A total of 60,282 unigenes were generated, with 2,282, 1,359 and 2,246 differentially expressed genes (DEGs) observed at S2 versus S1, S3 versus S2 and S4 versus S3, respectively; 558 genes that co-exist in at least three stages from S1 to S4 were obtained. Functional annotation classified 38 DEGs linked to flowering pathways: photoperiodism, hormone signalling, carbohydrate metabolism and floral development. The levels of gene expression, hormones (GA1 , GA4 and IAA) and soluble sugars were consistent with the EBF. It can be concluded that the EBF of A. sinensis is controlled by multiple genes. This integrated analysis of transcriptomics, together with targeted hormones and soluble sugars, provides new insights into the regulation of EBF of A. sinensis.
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Affiliation(s)
- J Li
- Key Lab of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - M L Li
- Key Lab of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - T T Zhu
- College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - X N Zhang
- Gansu Herbal Medicine Planting Co., Ltd, Lanzhou, 730000, China
| | - M F Li
- Key Lab of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - J H Wei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
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37
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Lam AT, Zhang XN, Courouble VV, Strutzenberg TS, Pei H, Stiles BL, Louie SG, Griffin PR, Zhang Y. A Bifunctional NAD + for Profiling Poly-ADP-Ribosylation-Dependent Interacting Proteins. ACS Chem Biol 2021; 16:389-396. [PMID: 33524253 DOI: 10.1021/acschembio.0c00937] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Protein poly-ADP-ribosylation (PARylation) is a heterogeneous and dynamic post-translational modification regulated by various writers, readers, and erasers. It participates in a variety of biological events and is involved in many human diseases. Currently, tools and technologies have yet to be developed for unambiguously defining readers and erasers of individual PARylated proteins or cognate PARylated proteins for known readers and erasers. Here, we report the generation of a bifunctional nicotinamide adenine dinucleotide (NAD+) characterized by diazirine-modified adenine and clickable ribose. By serving as an excellent substrate for poly-ADP-ribose polymerase 1 (PARP1)-catalyzed PARylation, the generated bifunctional NAD+ enables photo-cross-linking and enrichment of PARylation-dependent interacting proteins for proteomic identification. This bifunctional NAD+ provides an important tool for mapping cellular interaction networks centered on protein PARylation, which are essential for elucidating the roles of PARylation-based signals or activities in physiological and pathophysiological processes.
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Affiliation(s)
- Albert T. Lam
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - Valentine V. Courouble
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Timothy S. Strutzenberg
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - Bangyan L. Stiles
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - Stan G. Louie
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - Patrick R. Griffin
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, California 90089, United States
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California 90089, United States
- Research Center for Liver Diseases, University of Southern California, Los Angeles, California 90089, United States
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Lv HM, Jiang ZK, Wang J, Wang T, Zhang XN, Hu YM, Ma YY. A novel ratiometric AIE-based fluorescent probe for specific detection of Hcy/Cys and imaging of living cells in vivo. NEW J CHEM 2021. [DOI: 10.1039/d1nj03606h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The sensing mechanism toward Hcy/Cys is realized based on the condensation reaction, which breaks CN to form a thiazolidine adduct.
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Affiliation(s)
- Hong-Min Lv
- Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, 266061, P. R. China
| | - Zi-Ke Jiang
- Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, 266061, P. R. China
| | - Jing Wang
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, Qingdao, 266061, P. R. China
| | - Tao Wang
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, Qingdao, 266061, P. R. China
| | - Xiao-Nan Zhang
- National Engineering and Technological Research Center of Marine Monitoring Equipment, Qingdao, 266061, P. R. China
| | - Yi-Meng Hu
- National Engineering and Technological Research Center of Marine Monitoring Equipment, Qingdao, 266061, P. R. China
| | - Yan-Yan Ma
- Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, 266061, P. R. China
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39
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Luo HX, Meng YP, Wang HJ, Han HY, Qiao RH, Zhang XN, Feng Y, Wang T. [Study on the damage of the tight junctions of nasal mucosal epithelial cells by artemisia annua pollen]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:465-471. [PMID: 32842360 DOI: 10.3760/cma.j.cn115330-20191002-00612] [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] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the damage and mechanism of artemisia annua pollen on tight junction of human nasal mucosa epithelial cells (HNEpC). Methods: HNEpC were cultured in vitro. Different concentrations of artemisia annua pollen (0, 20, 40, 80, 100, 160, 200 μg/ml) were used to intervene the cells for 24 h, and the cell proliferation activity was detected by the CCK-8 method. The expression and phosphorylation of p38MAPK signaling pathway were detected by Western Blot before and after the intervention of SB203580, a p38MAPK inhibitor in HNEpC. Immunofluorescence chemical staining, Western Blot and quantitative real-time PCR (qPCR) were used to observe the expression and distribution of tight junctions Occludin and Claudin-1. SPSS 21.1 software was used for statistical analysis. Results: CCK-8 results showed that, compared with the control group, the proliferation activity of HNEpC increased after 6 h intervention with different concentrations of artemisia annua pollen (all P<0.05). After 12 h of intervention, the proliferation activity of HNEpC in the 20, 40, 80, 100 and 160 μg/ml groups was not significantly changed (all P>0.05), while that in the 200 μg/ml group was decreased (P<0.05). After the intervention for 24 h, the proliferation activity of cells in the 20 and 40 μg/ml groups was not significantly changed (all P>0.05), while that in the 80, 100, 160 and 200 μg/ml groups was decreased (all P<0.05). Immunofluorescence staining showed that the Occludin and Claudin-1 proteins in the normal control group were localized on the cell membrane and expressed more and formed a ring structure around the cell membrane. However, under the intervention of high concentration artemisia annua pollen, its expression level decreased, appeared broken, fuzzy, and nonuniform distribution. Western Blot and qPCR results showed that after 24 h of intervention, the expression levels of HNEpC Claudin-1 protein and its mRNA in the pollen groups (40, 80, 100, 160, 200 μg/ml) of artemisia annua decreased compared with those of those of the control group (mRNA expression levels were 0.567±0.214, 0.443±0.109, 0.462±0.160, 0.497±0.134, 0.388±0.076 compared with 1.001±0.067, respectively, all P<0.05). However, the mRNA of Occludin protein and its mRNA only decreased in the 200 μg/ml treatment group (mRNA expression level was 0.631±0.109 compared with 1.016±0.026, P<0.05), while all the other treatment groups increased (mRNA expression levels were 1.258±0.134, 1.827±0.103, 2.429±0.077, 1.707±0.085, 1.477±0.066 compared with 1.016±0.026, respectively, all P<0.05). Western Blot showed that p-p38MAPK expression increased after intervention with 100, 160, 200 μg/ml artemisia annua pollen for 24 h. SB203580 could inhibit the decreasing expression of Occludin caused by artemisinin pollen (mRNA expression was 1.255±0.179 compared with 0.631±0.109, P<0.05), but had no effect on Claudin-1 protein expression. Conclusion: Pollen from artemisia annua may activate p38MAPK signaling pathway and destroy the close connection of HNEpC.
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Affiliation(s)
- H X Luo
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y P Meng
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H J Wang
- Basic Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - H Y Han
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - R H Qiao
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - X N Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Feng
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - T Wang
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Shi X, Zhang XN, Chen J, Cheng Q, Pei H, Louie SG, Zhang Y. A poly-ADP-ribose polymer-based antibody-drug conjugate. Chem Sci 2020; 11:9303-9308. [PMID: 33623656 PMCID: PMC7871713 DOI: 10.1039/d0sc01795g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 08/13/2020] [Indexed: 02/05/2023] Open
Abstract
Protein poly-ADP-ribosylation (PARylation) plays vital roles in many aspects of physiology and pathophysiology. This posttranslational modification is catalyzed by poly-ADP-ribose polymerases (PARPs) through additions of ADP-ribose from nicotinamide adenine dinucleotide (NAD+) to protein residues, forming linear or branched poly-ADP-ribose (PAR) polymers. In this study, we explored a new concept of utilizing functionalized PAR polymers for targeted drug delivery. This was achieved by rapid and efficient generation of auto-PARylated PARP1 with 3'-azido ADP-riboses and subsequent conjugations of anti-human epidermal growth factor receptor 2 (HER2) antibodies and monomethyl auristatin F (MMAF) payloads. This designed PARylated PARP1-antibody-MMAF conjugate could potently kill HER2-expressing cancer cells in high specificity. This proof-of-principle work demonstrates the feasibility of production of PAR polymer-based antibody-drug conjugate and its application in targeted delivery. The PAR polymer-based conjugates may lead to new types of therapeutics with potentially improved physicochemical and pharmacological properties.
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Affiliation(s)
- Xiaojing Shi
- Department of Pharmacology and Pharmaceutical Sciences , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Jingwen Chen
- Department of Pharmacology and Pharmaceutical Sciences , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Stan G Louie
- Titus Family Department of Clinical Pharmacy , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences , School of Pharmacy , University of Southern California , Los Angeles , CA 90089 , USA
- Department of Chemistry , Dornsife College of Letters , Arts and Sciences , University of Southern California , Los Angeles , CA 90089 , USA
- Norris Comprehensive Cancer Center , University of Southern California , Los Angeles , CA 90089 , USA
- Research Center for Liver Diseases , University of Southern California , Los Angeles , CA 90089 , USA .
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41
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Shi JM, Zhao JQ, Zhao CX, Zhang XN, Zheng H, Li JG. [The characteristics of spatial-temporal evolvement of pneumoconiosis in Hebei Province from 2009 to 2018]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:175-179. [PMID: 32306689 DOI: 10.3760/cma.j.cn121094-20190507-00182] [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] [Indexed: 11/05/2022]
Abstract
Objective: To explore the temporal and spatial characteristics of pneumoconiosis in Hebei Province from 2009 to 2018, and to provide evidence for the policy development of pneumoconiosis prevention and control. Methods: In February 2019, a database of pneumoconiosis incidence from 2009 to 2018 in Hebei Province was built. The spatial-temporal distribution of pneumoconiosis in Hebei Province was displayed based on barycenter migration technology and spatial autocorrelation analysis. Results: A total of 6099 cases of pneumoconiosis were reported in Hebei Province from 2009 to 2018, the top 5 pneumoconiosis were silicosis(4399, 72.13%) , coal worker pneumoconiosis (1298 , 21.28%) , ceramics pneumoconiosis (224, 3.67%) , welding worker's pneumoconiosis(76, 1.25%) , and casting worker's pneumoconiosis(48, 0.79%). The focus of pneumoconiosis from 2009 to 2014 moved from Tangshan in the northeast to Zhangjiakou in the northwest, and moved to Chengde in the north from 2015 to 2017, and moved back to Tangshan in 2018. The incidence of pneumoconiosis was globally autocorrelation (P <0.05) from 2009 to 2011 and 2014 to 2018. The high-high gathering areas were located in Zhangjiakou, Chengde and other areas. Conclusion: The barycenter of pneumo- coniosis in hebei province from 2009 to 2018 is relatively stable, mainly locates in the northern part of Hebei Province over the years. There is an obvious regional aggregation, and the aggregation type is mainly high-high aggregation, which indicates that relevant departments should focus on strengthening the prevention and treat- ment of aggregation areas on the basis of overall planning.
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Affiliation(s)
- J M Shi
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China
| | - J Q Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - C X Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - X N Zhang
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - H Zheng
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - J G Li
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China; Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
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Jia TY, Zhang XN, Su T, Yang XY, Wang HL, Xin JP, Liu MN, Wang JK, Li XR. [A study on quality of Paridis Rhizoma and consideration on standards of Paridis Rhizoma in Chinese Pharmacopoeia]. Zhongguo Zhong Yao Za Zhi 2020; 45:2425-2430. [PMID: 32495602 DOI: 10.19540/j.cnki.cjcmm.20200110.201] [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] [Indexed: 11/18/2022]
Abstract
Thin layer chromatography, high performance liquid chromatography and multivariate statistical analysis were integrated in current study to provide a basis for the quality evaluation and the standard improvement of Paridis Rhizoma(Chinese name: Chong-lou). The results demonstrated that the primary saponins in the two authorized sources of Paridis Rhizoma were polyphyllinsⅠ, Ⅱ and Ⅶ, while the rhizome of Trillium tschonoskii an adulterant of Paridis Rhizoma was rich of polyphyllin Ⅵ. Therefore, the apparent content of polyphyllin Ⅵ plays a determinant role towards the source authentication of raw materials and decoction slices of Paridis Rhizoma, whose adulterants frequently occur in the market. Moreover, the contents of polyphyllin Ⅵ in the two authorized sources could meet the requirements of Chinese Pharmacopoeia. Therefore, we suggested that polyphyllin Ⅵ should not be omitted from the quality standard of Paridis Rhizoma in the Chinese Pharmacopoeia, and on the other side, polyphyllinsⅠ, Ⅱ and Ⅶ should be the eligible quality indicators. The study aims to sound information and evidences for the quality evaluation of Paridis Rhizoma, and also to provide a theoretical basis for the standard revision of Paridis Rhizoma in the future Chinese Pharmacopoeia.
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Affiliation(s)
- Tian-Ying Jia
- School of Chinese Pharmacy, Beijing University of Chinese Medicine Beijing 102488, China
| | | | - Tai Su
- Yunnan Baiyao Group Limited Ltd. Kunming 650500, China
| | - Xiao-Yan Yang
- Yunnan Baiyao Group Limited Ltd. Kunming 650500, China
| | - Hai-Li Wang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine Beijing 102488, China
| | - Jie-Ping Xin
- School of Chinese Pharmacy, Beijing University of Chinese Medicine Beijing 102488, China
| | - Meng-Nan Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine Beijing 102488, China
| | - Jing-Kun Wang
- Yunnan Baiyao Group Limited Ltd. Kunming 650500, China
| | - Xiang-Ri Li
- School of Chinese Pharmacy, Beijing University of Chinese Medicine Beijing 102488, China
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Dai Z, Zhang XN, Nasertorabi F, Cheng Q, Li J, Katz BB, Smbatyan G, Pei H, Louie SG, Lenz HJ, Stevens RC, Zhang Y. Synthesis of site-specific antibody-drug conjugates by ADP-ribosyl cyclases. Sci Adv 2020; 6:eaba6752. [PMID: 32537509 PMCID: PMC7269645 DOI: 10.1126/sciadv.aba6752] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/02/2020] [Indexed: 05/02/2023]
Abstract
Most of the current antibody-drug conjugates (ADCs) in clinic are heterogeneous mixtures. To produce homogeneous ADCs, established procedures often require multiple steps or long reaction times. The introduced mutations or foreign sequences may cause high immunogenicity. Here, we explore a new concept of transforming CD38 enzymatic activity into a facile approach for generating site-specific ADCs. This was achieved through coupling bifunctional antibody-CD38 fusion proteins with designer dinucleotide-based covalent inhibitors with stably attached payloads. The resulting adenosine diphosphate-ribosyl cyclase-enabled ADC (ARC-ADC) with a drug-to-antibody ratio of 2 could be rapidly generated through single-step conjugation. The generated ARC-ADC targeting human epidermal growth factor receptor 2 (HER2) displays excellent stability and potency against HER2-positive breast cancer both in vitro and in vivo. This proof-of-concept study demonstrates a new strategy for production of site-specific ADCs. It may provide a general approach for the development of a novel class of ADCs with potentially enhanced properties.
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Affiliation(s)
- Zhefu Dai
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Fariborz Nasertorabi
- Departments of Biological Sciences and Chemistry, Bridge Institute, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA 90089, USA
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Jiawei Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Benjamin B. Katz
- Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Goar Smbatyan
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Stan G. Louie
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
| | - Heinz-Josef Lenz
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Raymond C. Stevens
- Departments of Biological Sciences and Chemistry, Bridge Institute, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA 90089, USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
- Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA 90089, USA
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA
- Research Center for Liver Diseases, University of Southern California, Los Angeles, CA 90089, USA
- Corresponding author.
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44
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Hu XH, Niu WB, Zhang JF, Li BK, Yu B, Zhang ZY, Zhou CX, Zhang XN, Gao Y, Wang GY. [Treatment strategies for colorectal cancer patients in tumor hospitals under the background of corona virus disease 2019]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:201-208. [PMID: 32192294 DOI: 10.3760/cma.j.cn.441530-20200217-00058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In December 2019, a new outbreak of corona virus disease 2019 began to occur. Its pathogen is 2019-nCoV, which has the characteristics of strong infectivity and general susceptibility. The current situation of prevention and control of new coronavirus pneumonia is severe. In this context, as front-line medical workers bearing important responsibilities and pressure, while through strict management strategy, we can minimize the risk of infection exposure. By summarizing the research progress and guidelines in recent years in the fields of colorectal cancer disease screening, treatment strategies (including early colorectal cancer, locally advanced colorectal cancer, obstructive colorectal cancer, metastatic colorectal cancer and the treatment of patients after neoadjuvant therapy), the choice of medication and time limit for adjuvant therapy, the protective measures for patients undergoing emergency surgery, the re-examination of postoperative patients and the protection of medical staff, etc., authors improve treatment strategies in order to provide more choices for patients to obtain the best treatment under the severe epidemic situation of new coronavirus pneumonia. Meanwhile we hope that it can also provide more timely treatment modeling schemes for colleagues.
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Affiliation(s)
- X H Hu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - W B Niu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - J F Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - B K Li
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - B Yu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - Z Y Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - C X Zhou
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - X N Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - Y Gao
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - G Y Wang
- Department of Surgery, The Third Hospital, Hebei Medical University, Shijiazhuang 050051, China
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Hu XH, Niu WB, Zhang JF, Li BK, Yu B, Zhang ZY, Zhou CX, Zhang XN, Gao Y, Wang GY. [Thinking of treatment strategies for colorectal cancer patients in tumor hospitals under the background of coronavirus pneumonia]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:E002. [PMID: 32084675 DOI: 10.3760/cma.j.cn441530-20200217-00058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In December 2019, a new outbreak of coronavirus pneumonia began to occur. Its pathogen is 2019-nCoV, which has the characteristics of strong infectivity and general susceptibility. The current situation of prevention and control of new coronavirus pneumonia is severe. In this context, as front-line medical workers bearing important responsibilities and pressure, while through strict management strategy, we can minimize the risk of infection exposure. By summarizing the research progress and guidelines in recent years in the fields of colorectal cancer disease screening, treatment strategies(including early colorectal cancer, locally advanced colorectal cancer, obstructive colorectal cancer, metastatic colorectal cancer and the treatment of patients after neoadjuvant therapy), the choice of medication and time limit for adjuvant therapy, the protective measures for patients undergoing emergency surgery, the re-examination of postoperative patients and the protection of medical staff, etc., authors improve treatment strategies in order to provide more choices for patients to obtain the best treatment under the severe epidemic situation of new coronavirus pneumonia. Meanwhile we hope that it can also provide more timely treatment modeling schemes for colleagues.
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Affiliation(s)
- X H Hu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - W B Niu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - J F Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - B K Li
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - B Yu
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - Z Y Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - C X Zhou
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - X N Zhang
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - Y Gao
- The Second Department of General Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050000, China
| | - G Y Wang
- Department of Surgery, The Third Hospital, Hebei Medical University, Shijiazhuang 050051, China
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Zhang XN, Cheng Q, Chen J, Lam AT, Lu Y, Dai Z, Pei H, Evdokimov NM, Louie SG, Zhang Y. A ribose-functionalized NAD + with unexpected high activity and selectivity for protein poly-ADP-ribosylation. Nat Commun 2019; 10:4196. [PMID: 31519936 PMCID: PMC6744458 DOI: 10.1038/s41467-019-12215-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/28/2019] [Indexed: 12/12/2022] Open
Abstract
Nicotinamide adenine dinucleotide (NAD+)-dependent ADP-ribosylation plays important roles in physiology and pathophysiology. It has been challenging to study this key type of enzymatic post-translational modification in particular for protein poly-ADP-ribosylation (PARylation). Here we explore chemical and chemoenzymatic synthesis of NAD+ analogues with ribose functionalized by terminal alkyne and azido groups. Our results demonstrate that azido substitution at 3'-OH of nicotinamide riboside enables enzymatic synthesis of an NAD+ analogue with high efficiency and yields. Notably, the generated 3'-azido NAD+ exhibits unexpected high activity and specificity for protein PARylation catalyzed by human poly-ADP-ribose polymerase 1 (PARP1) and PARP2. And its derived poly-ADP-ribose polymers show increased resistance to human poly(ADP-ribose) glycohydrolase-mediated degradation. These unique properties lead to enhanced labeling of protein PARylation by 3'-azido NAD+ in the cellular contexts and facilitate direct visualization and labeling of mitochondrial protein PARylation. The 3'-azido NAD+ provides an important tool for studying cellular PARylation.
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Affiliation(s)
- Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Jingwen Chen
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Albert T Lam
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Yanran Lu
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Zhefu Dai
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Hua Pei
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Nikolai M Evdokimov
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA
| | - Stan G Louie
- Titus Family Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA. .,Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA. .,Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, 90089, USA. .,Research Center for Liver Diseases, University of Southern California, Los Angeles, CA, 90089, USA.
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Liu BL, Qin JJ, Shen WQ, Liu C, Yang XY, Zhang XN, Hu F, Liu GM. FOXA1 promotes proliferation, migration and invasion by transcriptional activating KRT7 in human gastric cancer cells. J BIOL REG HOMEOS AG 2019; 33:1041-1050. [PMID: 31317696] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Gastric cancer (GC) is the fourth leading cause of gynecological malignancies worldwide. 5-fluorouracil (5-FU)-mediated chemotherapy is the adjuvant treatment for patients with GC following surgical resection. Many studies have indicated the cancer-type specific roles of forkhead box protein A1 (FOXA1) and keratin 7 (KRT7) in human malignancies. However, the potential mechanism underlying the involvement of FOXA1 and KRT7 in the pathogenesis and chemoresistance of GC are still not entirely clear. In our study, gain- and loss-of-function experiments proved that FOXA1 promoted cell proliferation, migration and invasion in AGS and SGC-7901 cells. Consequently, KRT7 was identified to be transcriptional activated by FOXA1 using Dual luciferase reporter assay. Our results also indicated that FOXA1 exerted its functions in enhancing viability and invasion of AGS and SGC-7901 cells through activating KRT7. Finally, interference of FOXA1 or KRT7 increased the chemosensitivity of AGS and SGC-7901 cells to 5-fluorouracil (5-Fu) treatment by suppressing cell proliferation. In conclusion, these data indicate that FOXA1 promoted proliferation, migration, invasion, and decreased chemosensitivity of GC cells to 5-Fu treatment through transcriptional activator KRT7. The present study provides a novel therapeutic strategy for the enhancement of efficacy in GC treatment and provides important insights into the molecular mechanism underlying 5-FU-mediated chemoresistance.
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Affiliation(s)
- B L Liu
- School of Medical Technology, Jiangsu College of Nursing, Huaian City, China
| | - J J Qin
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun City, China
| | - W Q Shen
- School of Health and Rehabilitation, Jiangsu College of Nursing, Huaian City, China
| | - C Liu
- School of Medical Technology, Jiangsu College of Nursing, Huaian City, China
| | - X Y Yang
- School of Medical Technology, Jiangsu College of Nursing, Huaian City, China
| | - X N Zhang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun City, China
| | - F Hu
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun City, China
| | - G M Liu
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun City, China
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Yang J, Jiang ZM, Yu K, Lu Q, Xu JY, Zhao WG, Li XX, Kang WM, Ye X, Zhang XN, Xu HX, Li JY. [The development of malnutrition assessment criteria and the analysis of current problems]. Zhonghua Wai Ke Za Zhi 2019; 57:331-336. [PMID: 31091586 DOI: 10.3760/cma.j.issn.0529-5815.2019.05.003] [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] [Indexed: 11/05/2022]
Abstract
It is well known that parenteral and enteral nutrition support is helpful to improve clinical outcomes in patients with malnutrition or nutritional risk, and surgical nutrition has been used in China for 40 years. However, there is still insufficient awareness of malnutrition among clinical workers. There were different opinions from many experts after the publications of the European Society for Parenteral and Enteral Nutrition (ESPEN) consensus of malnutrition assessment 2015 and ESPEN guidelines on definitions and terminology of clinical nutrition 2017. Global Leadership Initiative on Malnutrition (GLIM) criteria for the diagnosis of malnutrition has also been published in 2018. Though it is lack of clinical validation, it is a big step forward. In order to achieve better prevention and treatment of malnutrition in clinical work, this present paper analyzes and compares the core contents of malnutrition assessment (diagnosis) in recent years, proposes current practical strategy for Chinese clinical workers, emphasizes that GLIM criteria cannot replace the three steps named "screening-assessment-intervention" .
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Affiliation(s)
- J Yang
- Department of Clinical Nutrition, the Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Z M Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - K Yu
- Department of Health-Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Lu
- Division of Medical and Surgical Nursing, School of Nursing, Peking University, Beijing 100191, China
| | - J Y Xu
- Department of General Surgery, National Aging Medical Center, Beijing Hospital, Beijing 100730, China
| | - W G Zhao
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X Li
- Department of Pharmacy, Peking University Third Hospital, Beijing 100191, China
| | - W M Kang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Ye
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X N Zhang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H X Xu
- Department of Clinical Nutrition, Army Medical Center of People's Liberation Army, Chongqing 400042, China
| | - J Y Li
- Department of Medical Oncology, the First Affiliated Hospital of Xiamen University, Xiamen 361003, China
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Liu YZ, Hai Y, Zhang XN, Yin P, Liu T, Ding HT, Han CF, Han B, Tao LM, Guan L. [Comparison of cortical bone trajectory screw fixation and pedicle screw fixation in posterior lumbar fusion]. Zhonghua Yi Xue Za Zhi 2019; 99:1473-1478. [PMID: 31137137 DOI: 10.3760/cma.j.issn.0376-2491.2019.19.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of cortical screw fixation in posterior lumbar spine fixation with cortical bone trajectory (CBT) fixation or pedicle screw (PS) fixation in posterior lumbar fusion. Methods: It was a prospective study and CBT or PS for the treatment of lumbar disease from August 2015 to August 2017 in Beijing Chaoyang Hospital were analyzed. There were 53 males and 51 females, aged 56-78 years (mean age, (67±5) years). The patient's gender, age, operative time, intraoperative blood loss, postoperative bleeding, postoperative hospital stay, and postoperative patient satisfaction were collected. The Oswestry disability index (ODI) and visual analogue scale (VAS) of back pain were used to evaluate preoperative and half-year, one-year and two-year postoperative function and quality of life. Complications such as wound infection, cage displacement, screw extraction and fixation fracture were compared between the two groups. The data of normal distribution were compared with Student t test between the two groups. Results: There was no significant difference in the operation time between the CBT group (n=50) and the PS group (n=54) ((223±17) min vs (221±16) min, t=0.74, P=0.46). The intraoperative blood loss and wound drainage volume were significantly lower in the CBT group than those in the PS screw group (t=-24.20, -57.62, both P<0.05). The average length of hospital stay in the CBT group was significantly shorter than that in the PS group (t=-7.65, P=0.00). Patients with CBT screws had better postoperative satisfaction than patients in PS group (91±6 vs 86±7, t=3.89, P=0.00). The ODI score in the CBT group was significantly lower than that in the PD screw group half a year after the operation (3.9±1.9 vs 5.8±3.1, t=-3.66, P=0.00). The VAS and ODI scores in the CBT group were significantly lower than those in the PS group 1 year after the surgery (t=-3.03, -4.09, both P<0.05). There was no significant differences in wound infection, cage displacement, screw extraction and fixation fracture between the two groups. Conclusion: CBT screw technique is minimally invasive, with short operation time, less intraoperative blood loss, rapid postoperative recovery and low complications. It can be effectively used in posterior lumbar cone fusion.
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Affiliation(s)
- Y Z Liu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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Zhang XN, Dai Z, Cheng Q, Zhang Y. Chemoenzymatic Preparation of 4'-Thioribose NAD .. ACTA ACUST UNITED AC 2019; 77:e83. [PMID: 30951610 DOI: 10.1002/cpnc.83] [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: 11/11/2022]
Abstract
This chemoenzymatic procedure describes a strategy for the preparation of 4'-thioribose nicotinamide adenine dinucleotide (S-NAD+ ), including chemical synthesis of nicotinamide 4'-riboside (S-NR), recombinant expression and purification of two NAD+ biosynthesis enzymes nicotinamide riboside kinase (NRK) and nicotinamide mononucleotide adenylyltransferase (NMNAT), and enzymatic synthesis of S-NAD+ . The first basic protocol describes the procedures for introduction of nicotinamide onto 4'-thioribose and subsequent deprotection to generate S-NR as the key intermediate for enzymatically synthesizing S-NAD+ . In the second basic protocol, experimental methods are detailed for the production of recombinant human NRK1 and NMNAT1 to catalyze conversion of S-NR to S-NAD+ . The third basic protocol presents the enzymatic approach for the generation of S-NAD+ from S-NR precursor. © 2019 by John Wiley & Sons, Inc.
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Affiliation(s)
- Xiao-Nan Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Zhefu Dai
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Qinqin Cheng
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Yong Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California.,Department of Chemistry, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, California.,Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California.,Research Center for Liver Diseases, University of Southern California, Los Angeles, California
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