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Li JG, Zhang CJ, Liang LY, Lu TY, Zhong LG, Zhong WC, Niu CY, Sun J, Liao XP, Zhou YF. Assessment of anti-MRSA activity of auranofin and florfenicol combination: a PK/PD analysis. J Appl Microbiol 2024; 135:lxae299. [PMID: 39694699 DOI: 10.1093/jambio/lxae299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 11/27/2024] [Accepted: 12/17/2024] [Indexed: 12/20/2024]
Abstract
AIMS Methicillin-resistant Staphylococcus aureus (MRSA) is an important zoonotic pathogen with multidrug-resistant phenotypes increasingly prevalent in both human and veterinary clinics. This study evaluated the potential of auranofin (AF) as an antibiotic adjuvant to enhance the anti-MRSA activity of florfenicol (FFC) and established a pharmacokinetic/pharmacodynamic (PK/PD) model to compare the efficacy of FFC alone or in combination with AF against MRSA. METHODS AND RESULTS We observed an increased susceptibility and significant synergistic effects of MRSA to FFC in the presence of AF. The combination treatment of FFC and AF significantly inhibited MRSA biofilm formation and decreased the metabolic activity of mature biofilms. Importantly, AF fully restored the efficacy of FFC in both Galleria mellonella larvae and murine models. PK/PD studies demonstrated that the AUC24h/MIC targets required to achieve the bacteriostatic and bactericidal effects were significantly lower with the combination therapy compared to florfenicol monotherapy. CONCLUSIONS These results reveal the potential of AF as a novel adjuvant to improve the efficacy of FFC in treating MRSA invasive infections and provide valuable PK/PD insights for designing effective combination therapies.
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Affiliation(s)
- Jian-Guo Li
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Chuan-Jian Zhang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Liu-Yan Liang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Ting-Yin Lu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Long-Gen Zhong
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Wei-Cheng Zhong
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Chao-Yan Niu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
| | - Jian Sun
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, No. 48 Wenhui East Road, Yangzhou, 225009, China
| | - Xiao-Ping Liao
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, No. 48 Wenhui East Road, Yangzhou, 225009, China
| | - Yu-Feng Zhou
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, No. 48 Wenhui East Road, Yangzhou, 225009, China
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Réthi-Nagy Z, Juhász S. Microbiome's Universe: Impact on health, disease and cancer treatment. J Biotechnol 2024; 392:161-179. [PMID: 39009231 DOI: 10.1016/j.jbiotec.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/27/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
The human microbiome is a diverse ecosystem of microorganisms that reside in the body and influence various aspects of health and well-being. Recent advances in sequencing technology have brought to light microbial communities in organs and tissues that were previously considered sterile. The gut microbiota plays an important role in host physiology, including metabolic functions and immune modulation. Disruptions in the balance of the microbiome, known as dysbiosis, have been linked to diseases such as cancer, inflammatory bowel disease and metabolic disorders. In addition, the administration of antibiotics can lead to dysbiosis by disrupting the structure and function of the gut microbial community. Targeting strategies are the key to rebalancing the microbiome and fighting disease, including cancer, through interventions such as probiotics, fecal microbiota transplantation (FMT), and bacteria-based therapies. Future research must focus on understanding the complex interactions between diet, the microbiome and cancer in order to optimize personalized interventions. Multidisciplinary collaborations are essential if we are going to translate microbiome research into clinical practice. This will revolutionize approaches to cancer prevention and treatment.
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Affiliation(s)
- Zsuzsánna Réthi-Nagy
- Hungarian Centre of Excellence for Molecular Medicine, Cancer Microbiome Core Group, Budapesti út 9, Szeged H-6728, Hungary
| | - Szilvia Juhász
- Hungarian Centre of Excellence for Molecular Medicine, Cancer Microbiome Core Group, Budapesti út 9, Szeged H-6728, Hungary.
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Dong Z, Hou X, Wang X, Shen Z, Pang H, Chen L, Yin Z, Ren F, Li W, Ge Y, Ning H, Hu D. Proteomic Analysis of the Mitochondrial Responses in P19 Embryonic Stem Cells Exposed to Florfenicol. TOXICS 2023; 11:992. [PMID: 38133393 PMCID: PMC10747307 DOI: 10.3390/toxics11120992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Florfenicol (FLO) has been shown to elicit diverse toxic effects in plants, insects, and mammals. Previously, our investigations revealed that FLO induced abnormal cardiac development and early embryonic mortality in chicken embryos. However, the effect of FLO on mitochondrial responses in stem cells remains unclear. In this study, we show that FLO significantly diminishes proliferation viability and obstructs the directed differentiation of P19 stem cells (P19SCs) into cardiomyocytes. Proteomic analysis revealed 148 differentially expressed proteins in response to FLO. Functional analysis has pinpointed FLO interference with biological processes associated with oxidative phosphorylation within the mitochondria. In alignment with the results of proteomic analysis, we confirmed that FLO inhibits the expression of both nuclear DNA-encoded and mitochondrial DNA-encoded subunits of the electron transport chain. Subsequent experiments demonstrated that FLO disrupts mitochondrial dynamics and induces the mitochondrial unfolded protein response to maintain mitochondrial homeostasis. These findings collectively highlight the significance of mitochondrial dynamics and the mitochondrial unfolded protein response to mediate the decreased proliferation viability and directed differentiation potential in P19SCs treated with FLO. In conclusion, this study provides a comprehensive overview of mitochondrial responses to FLO-induced cytotoxicity and enhances our understandings of the molecular mechanisms underlying FLO-induced embryonic toxicity.
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Affiliation(s)
- Zhihua Dong
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Xueke Hou
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Xueying Wang
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Zihui Shen
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Huiqing Pang
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Lingli Chen
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Zhihong Yin
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Fei Ren
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Weiguo Li
- Postdoctoral Research Station in Biological Sciences, Henan Normal University, Xinxiang 453003, China;
| | - Yaming Ge
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Hongmei Ning
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Dongfang Hu
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
- Postdoctoral Research Station in Biological Sciences, Henan Normal University, Xinxiang 453003, China;
- Postdoctoral Research and Development Base, Henan Institute of Science and Technology, Xinxiang 453003, China
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Kong Y, Fan X, Yao X, Wu K, Deng A, Feng X, Li J. Potential-Resolved Electrochemiluminescence Multiplex Immunoassay for Florfenicol and Chloramphenicol in a Single Sample. Anal Chem 2023; 95:16639-16648. [PMID: 37910128 DOI: 10.1021/acs.analchem.3c03019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
The simultaneous detection of multiple antibiotic residues in food is of great significance for food safety. In this work, a novel dual-potential electrochemiluminescence (ECL) immunoassay was designed for the simultaneous detection of chloramphenicol and fluorfenicol residues in food. Ru@MOF was used as an anodic probe, and SnS2 QDs-PEI-Au-MoS2 was used as a cathodic probe. Notably, the coreactant for both luminophores was K2S2O8, avoiding interactions caused by different kinds of coreactants. Au nanoparticles functionalized with a nitrogen- and sulfur-doped graphene oxide-modified glassy carbon electrode to improve the electron transfer efficiency and provide a larger surface area for immobilization of antigen. The linear range for the detection of florfenicol was determined to be 0.1-1000 ng mL-1 with a detection limit of 0.03 ng mL-1, and the linear range for the detection of chloramphenicol was 0.01-1000 ng mL-1 with a detection limit of 3.2 pg mL-1 by recording the ECL responses at two different excitation potentials. The proposed immunoassay achieved a more stable recovery in the detection of actual samples and provided a new analytical method for the simultaneous detection of florfenicol and chloramphenicol residues with high sensitivity and specificity.
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Affiliation(s)
- Yue Kong
- The Key Laboratory of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaolin Fan
- The Key Laboratory of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xun Yao
- Comprehensive Technology Center of Zhangjiagang Customs, Zhangjiagang 215600, Jiangsu, P. R. China
| | - Kang Wu
- School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, P. R. China
| | - Anping Deng
- The Key Laboratory of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xinjian Feng
- The Key Laboratory of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jianguo Li
- The Key Laboratory of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
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