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Abdelmassih MM, Ismail MM, Kashef MT, Essam T. Repurposing fusidic acid as an antimicrobial against enterococci with a low probability of resistance development. Int Microbiol 2024:10.1007/s10123-024-00506-w. [PMID: 38532184 DOI: 10.1007/s10123-024-00506-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/26/2024] [Accepted: 03/10/2024] [Indexed: 03/28/2024]
Abstract
Drug repurposing constitutes a strategy to combat antimicrobial resistance, by using agents with known safety, pharmacokinetics, and pharmacodynamics. Previous studies have implemented new fusidic acid (FA) front-loading-dose regimens, allowing higher serum levels than those achievable with ordinary doses. As susceptibility breakpoints are affected by serum level, we evaluated the repurposing of FA as an antimicrobial product against enterococci. FA minimum inhibitory concentrations (MICs) against standard enterococci strains; Enterococcus faecalis ATCC 29212 and Enterococcus faecium ATCC 27270 were 2 and 4 µg/mL, respectively. The MIC against 98 enterococcal clinical isolates was ≤ 8 µg/mL; all would be susceptible if categorized according to recalculated breakpoints (≥ 16 µg/mL), based on the serum level achieved using the front-loading regimen. FA administration in vivo, using the BALB/c mouse infection model, significantly reduced bacterial burden by two to three log10 units in the liver and spleen of mice infected with vancomycin-susceptible and -resistant strains. Exposure of the standard enterococcal strains to increasing, but not fixed, FA concentrations resulted in resistant strains (MIC = 128 µg/mL), with thicker cell walls and slower growth rates. Only one mutation (M651I) was detected in the fusA gene of the resistant strain derived from serial passage of E. faecium ATCC 27270, which was retained in the revertant strain after passage in the FA-free medium. In conclusion, FA can be repurposed as an antimicrobial drug against enterococci with a low probability of mutational resistance development, and can be employed for treatment of infections attributable to vancomycin-resistant enterococci.
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Affiliation(s)
- Mark M Abdelmassih
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Maha M Ismail
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Mona T Kashef
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
| | - Tamer Essam
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
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Gomaa SE, Abbas HA, Mohamed FA, Ali MAM, Ibrahim TM, Abdel Halim AS, Alghamdi MA, Mansour B, Chaudhary AA, Elkelish A, Boufahja F, Hegazy WAH, Yehia FAZA. The anti-staphylococcal fusidic acid as an efflux pump inhibitor combined with fluconazole against vaginal candidiasis in mouse model. BMC Microbiol 2024; 24:54. [PMID: 38341568 PMCID: PMC10858509 DOI: 10.1186/s12866-024-03181-z] [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: 10/30/2023] [Accepted: 01/04/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Candida albicans is the most common fungus that causes vaginal candidiasis in immunocompetent women and catastrophic infections in immunocompromised patients. The treatment of such infections is hindered due to the increasing emergence of resistance to azoles in C. albicans. New treatment approaches are needed to combat candidiasis especially in the dwindled supply of new effective and safe antifungals. The resistance to azoles is mainly attributed to export of azoles outside the cells by means of the efflux pump that confers cross resistance to all azoles including fluconazole (FLC). OBJECTIVES This study aimed to investigate the possible efflux pump inhibiting activity of fusidic acid (FA) in C. albicans resistant isolates and the potential use of Fusidic acid in combination with fluconazole to potentiate the antifungal activity of fluconazole to restore its activity in the resistant C. albicans isolates. METHODS The resistance of C. albicans isolates was assessed by determination of minimum inhibitory concentration. The effect of Fusidic acid at sub-inhibitory concentration on efflux activity was assayed by rhodamine 6G efflux assay and intracellular accumulation. Mice model studies were conducted to evaluate the anti-efflux activity of Fusidic acid and its synergistic effects in combination with fluconazole. Impact of Fusidic acid on ergosterol biosynthesis was quantified. The synergy of fluconazole when combined with Fusidic acid was investigated by determination of minimum inhibitory concentration. The cytotoxicity of Fusidic acid was tested against erythrocytes. The effect of Fusidic acid on efflux pumps was tested at the molecular level by real-time PCR and in silico study. In vivo vulvovaginitis mice model was used to confirm the activity of the combination in treating vulvovaginal candidiasis. RESULTS Fusidic acid showed efflux inhibiting activity as it increased the accumulation of rhodamine 6G, a substrate for ABC-efflux transporter, and decreased its efflux in C. albicans cells. The antifungal activity of fluconazole was synergized when combined with Fusidic acid. Fusidic acid exerted only minimal cytotoxicity on human erythrocytes indicating its safety. The FA efflux inhibitory activity could be owed to its ability to interfere with efflux protein transporters as revealed by docking studies and downregulation of the efflux-encoding genes of both ABC transporters and MFS superfamily. Moreover, in vivo mice model showed that using fluconazole-fusidic acid combination by vaginal route enhanced fluconazole antifungal activity as shown by lowered fungal burden and a negligible histopathological change in vaginal tissue. CONCLUSION The current findings highlight FA's potential as a potential adjuvant to FLC in the treatment of vulvovaginal candidiasis.
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Affiliation(s)
- Salwa E Gomaa
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Hisham A Abbas
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Fatma A Mohamed
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
- Department of Medical Microbiology and Immunology-Medical School, University of Pécs, Szigeti Út 12, Pécs, H-7624, Hungary
| | - Mohamed A M Ali
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
- Department of Biochemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Tarek M Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Alyaa S Abdel Halim
- Department of Biochemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Mashael A Alghamdi
- Department of Chemistry, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Basem Mansour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Belqas, 11152, Egypt
| | - Anis Ahmad Chaudhary
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Amr Elkelish
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Fehmi Boufahja
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Wael A H Hegazy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
- Pharmacy Program, Department of Pharmaceutical Sciences, Oman College of Health Sciences, Muscat, 113, Oman.
| | - Fatma Al-Zahraa A Yehia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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Huang X, Liu Z, Quan ZS, Guo HY, Shen QK. Synthesis and structure-activity relationship studies of fusidic acid derivatives as anti-inflammatory agents for acute lung injury. Bioorg Chem 2023; 141:106885. [PMID: 37804700 DOI: 10.1016/j.bioorg.2023.106885] [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: 06/27/2023] [Revised: 09/13/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
Acute lung injury (ALI) are severe forms of diffuse lung disease that impose a substantial health burden all over the world. In the United States, approximately 190,000 cases per year of ALI each year, with an associated 74,500 deaths per year. Anti-inflammatory therapy has become a reasonable approach for the treatment of patients with ALI. In this study, fusidic acid derivatives were used to design new anti-inflammatory compounds with high pharmacological activity and low toxicity. A total of 30 new fusidic acid derivatives were discovered, synthesized, and screened for their anti-inflammatory activity against lipopolysaccharide (LPS)-treated RAW264.7 cells. Of them, b2 was found to be the most active, with a higher efficiency compared with fusidic acid and celecoxib in 10 μM. In vitro, we further measured b2 inhibited inflammatory factor NO (IC50 = 5.382 ± 0.655 μM), IL-6 (IC50 = 7.767 ± 0.871 μM), and TNF-α (IC50 = 7.089 ± 0.775 μM) and b2 inhibited inflammatory cytokines COX-2 and iNOS, ROS production, NF-κB/MAPK and Bax/Bcl-2 signaling pathway pathway. In vivo,b2 attenuated ALI pathological changes and inhibited inflammatory cytokines COX-2 and iNOS in lung tissue and NF-κB/MAPK and Bax/Bcl-2 signaling pathway. In conclusion, b2 may be a promising anti-inflammatory lead compound.
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Affiliation(s)
- Xing Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zheng Liu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
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Liu Z, Huang X, Guo HY, Zhang LW, Quan YS, Chen FE, Shen QK, Quan ZS. Design, synthesis fusidic acid derivatives alleviate acute lung injury via inhibiting MAPK/NF-κB/NLRP3 pathway. Eur J Med Chem 2023; 259:115697. [PMID: 37544187 DOI: 10.1016/j.ejmech.2023.115697] [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: 05/08/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
Acute lung injury (ALI) refers to a series of lung lesions resulting from multiple lung injuries, even leading to morbidity and death, abundant previous reports have showed that anti-inflammatory as a key to treatment of ALI. Fusidic acid (FA) as an antibiotic has significant anti-bacterial activity and anti-inflammatory effects. In this study, we designed and synthesized 34 FA derivatives to identify new anti-inflammatory drugs. The anti-inflammatory activities of the derivatives were screened using lipopolysaccharide (LPS)-induced RAW264.7 cells to evaluate the anti-inflammatory activity of the compounds, we measured nitric oxide (NO) and interleukin-6 (IL-6). Most of compounds showed inhibitory effects on inflammatory NO and IL-6 in LPS-induced RAW264.7 cells. Based on the screening results, compound a1 showed the strongest anti-inflammatory activity. Compared with FA, the inhibition rate NO and IL-6 of compound a1 increased 3.08 and 2.09 times at 10 μM, respectively. We further measured a1 inhibited inflammatory factor NO (IC50 = 3.26 ± 0.42 μM), IL-6 (IC50 = 1.85 ± 0.21 μM) and TNF-α (IC50 = 3.88 ± 0.55 μM). We also demonstrated that a1 markedly inhibits the expression of certain immune-related cytotoxic factors, including cyclooxygenase-2 (COX-2) and inducible nitric-oxide synthase (iNOS). In vivo results indicate that a1 can reduce lung inflammation and NO, IL-6, TNF-α, COX-2 and iNOS in LPS-induced ALI mice. On the one hand, we demonstrated a1 inhibits the mitogen-activated protein kinase (MAPK) signaling pathway by down-regulating the phosphorylation of p38 MAPK, c-Jun N-terminal kinase (c-JNK) and extracellular signal-regulated kinase (ERK). Moreover, a1 also suppressing the phosphorylation of inhibitory NF-κB inhibitor α (IκBα) inhibits the activation of the nuclear factor-κB (NF-κB) signaling pathway. On the other hand, we demonstrated a1 also role in anti-inflammatory by inhibits nucleotide-binding domain (NOD)-like receptor protein 3 (NLRP3) inflammasome and further inhibits Caspase-1 and inflammatory factor interleukin-1β (IL-1β). In conclusion, our study demonstrates that a1 has an anti-inflammatory effect and alleviates ALI by regulating inflammatory mediators and suppressing the MAPK, NF-κB and NLRP3 inflammasome signaling pathways.
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Affiliation(s)
- Zheng Liu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Xing Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Lu-Wen Zhang
- Department of Functional Science, College of Medicine, Yanbian University, Yanji, Jilin, 133002, China
| | - Yin-Sheng Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Fen-Er Chen
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China.
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China.
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Kim JY, Jegal BS, Koh AR, Park KS, Kim JB, Bae J. Growth inhibition by fusidic acid in cervical, thyroid, and breast carcinoma cell lines. Obstet Gynecol Sci 2023; 66:100-106. [PMID: 36575560 PMCID: PMC10025870 DOI: 10.5468/ogs.22267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE We investigated the effects of fusidic acid (FA) on human cervical, thyroid, and breast carcinoma cell lines to determine the potential usefulness of FA in cancer treatment. METHODS Six cancer cell lines (cervical cancer: Caski, HeLa; thyroid cancer: 8505C, TPC1; and breast cancer: MCF-7, MDA-MB-231) were treated with FA. Furthermore the changes in cell growth, cell cycle duration, and extent of apoptosis were analyzed. RESULTS After FA treatment, the cancer cells showed a decrease in growth rate. In the cell death assay, the cell populations were similar in each cell type after treatment with FA, indicating that growth inhibition by FA was not related to the induction of apoptosis. FA induced cell cycle arrest at a dose that inhibited growth rate, which varied in different cell types. G0/G1 phase arrest occurs in breast cancer, S phase arrest in 8505C thyroid cancer, and G2/M phase arrest in cervical cancer. These results indicate that FA reduces growth rates by inducing cell cycle arrest. CONCLUSION FA treatment can interfere with cell proliferation by inducing cell cycle arrest in human cervical, thyroid, and breast carcinoma cell lines. Thus, FA can be useful in treating human cervical, thyroid, and breast carcinomas.
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Affiliation(s)
- Jin Young Kim
- Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul,
Korea
| | - Bo Seul Jegal
- Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul,
Korea
| | - A Ra Koh
- Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul,
Korea
| | - Kyoung Sik Park
- Department Departments of Surgery, Konkuk University School of Medicine, Seoul,
Korea
| | | | - Jaeman Bae
- Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul,
Korea
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Ziroglu N, Koluman A, Kaleci B, Tanriverdi B, Tanriverdi G, Kural A, Bilgili MG. The antibiotics supplemented bone cement improved the masquelet's induced membrane in a rat femur critical size defect model. Injury 2023; 54:329-338. [PMID: 36334950 DOI: 10.1016/j.injury.2022.10.027] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Masquelet technique is a two-stage surgical procedure used in the treatment of critical-size bone defects (CSD). Adding antibiotics to polymethylmethacrylate (PMMA) is still questionable to create higher quality induced membrane (IM). The aim of the study was to evaluate the effects of three antibiotic-supplemented cement, fusidic acid, teicoplanin, and gentamicin, on osteogenesis and IM progression applied to rat femur CSD model by comparing histopathological, biochemical, and immunohistochemical findings. METHODS Twenty-eight male rats were divided into four groups control, gentamicin (G), teicoplanin (T), and fusidic acid (FA). A 10 mm CSD was created in rat femurs. In the postoperative 4th week, intracardiac blood samples were collected for biochemical analysis of bone alkaline phosphatase (BALP), osteocalcin (OC), and tumor necrosis factor-alpha (TNF-α) levels. IMs obtained in secondary operation were fixed and prepared for histopathological scoring of membrane progression and immunohistochemical evaluation of rat-specific Transforming Growth Factor-Beta (TGF-β), Runt-related Transcription Factor 2 (Runx2), and Vascular Endothelial Growth Factor (VEGF) expressions. RESULTS Levels of BALP and OC in serum didn't change among groups significantly while serum TNF-α levels significantly decreased in all antibiotic groups compared to the control group (P = 0.017). Histological scores of groups FA and T were significantly higher than those of groups Control and G (P = 0.0007). IMs of groups T and FA showed good progression while those of groups Control and G were also moderately progressed. A significant increase in TGF-β expression was observed in group G and FA (P = 0.001) while a significant increase in the expression of VEGF was observed in groups G and T compared to the control group (P = 0.036). CONCLUSIONS The bone cement impregnated with thermostable and safe antibiotics, gentamicin, fusidic acid, and teicoplanin can increase osteogenesis and support IM progression by increasing the expressions of TGF-β and VEGF. Anabolic effects of induced membranes used in the treatment of critical-size bone defects can be enhanced by antibiotic-supplemented PMMAs applied by altering the original technique.
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Affiliation(s)
- Nezih Ziroglu
- Department of Orthopedics and Traumatology, Acibadem Mehmet Ali Aydinlar University School of Medicine, Acibadem Atakent Hospital, Kucukcekmece/Istanbul, Turkey.
| | - Alican Koluman
- Department of Orthopedics and Traumatology, Istanbul Bakirkoy Dr. Sadi Konuk Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Belisa Kaleci
- Department of Histology and Embryology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Bulent Tanriverdi
- Department of Orthopedics and Traumatology, Istanbul Bakirkoy Dr. Sadi Konuk Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Gamze Tanriverdi
- Department of Histology and Embryology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Alev Kural
- Department of Biochemistry, Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Mustafa Gokhan Bilgili
- Department of Orthopedics and Traumatology, Istanbul Bakirkoy Dr. Sadi Konuk Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
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Rao Z, He ZF, Zheng MH, Dang ZL, Yang G, Zhang YH, Lu N, Wei YH. Fusidic Acid and Its Major Active Metabolite Penetration into Cerebrospinal Fluid for Assessing Treatment of Intracranial Infections. Chemotherapy 2022; 68:48-54. [PMID: 35810737 DOI: 10.1159/000525906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 06/25/2022] [Indexed: 02/03/2023]
Abstract
Fusidic acid (FA) had excellent antimicrobial effects due to its unique mechanism of action. Since 1962, FA has been widely used in the systemic and topical treatment of staphylococcal infections and exhibits a well-characterized potency against methicillin-susceptible Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and methicillin-resistant coagulase-negative Staphylococci. In view of the spectrum of activity, no cross-resistance with other clinically used antibiotics, and potential penetration into brain tissue, FA was used to treat possible gra-positive bacteria in 3 patients with intracranial infections in the present report. FA and its active metabolite (3-keto FA) were measured in plasma and cerebrospinal fluid (CSF) to assess the treatment of FA, and the results indicated that 1,500 mg per day of FA was sufficient to achieve therapeutic concentrations in both plasma and CSF in intracranial infection patients, while the dosage did not experience unexpected regimen-related toxicity.
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Affiliation(s)
- Zhi Rao
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China,
| | - Zhong-Fang He
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Mao-Hua Zheng
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Zi-Long Dang
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Gang Yang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yong-Hong Zhang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Ning Lu
- Department of Cardiovascular Surgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yu-Hui Wei
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
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Romaru J, Limelette A, Lebrun D, Bonnet M, Garnier VV, N'Guyen Y. Fusidic acid in a tertiary hospital: an observational study focusing on prescriptions, tolerance and susceptibility of Staphylococcus and Cutibacterium spp. strains from bone samples. Eur J Clin Microbiol Infect Dis 2022; 41:1107-1113. [PMID: 35780283 DOI: 10.1007/s10096-022-04469-6] [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: 01/20/2022] [Accepted: 06/22/2022] [Indexed: 11/25/2022]
Abstract
Adverse drug reactions of broad-spectrum fluoroquinolones or rifampicin are not uncommon during osteomyelitis and orthopaedic implant infections (OOII). Thus, we made an overview (i) of the prescription of fusidic acid (FA) and (ii) of FA susceptibility of Staphylococcus sp. and Cutibacterium sp. strains isolated from bone samples. All prescriptions of FA and all bone samples with positive culture for Staphylococcus sp. or Cutibacterium sp. (Reims University Hospital June 2017-May 2021) were included. All Staphylococcus aureus strains were considered as significant, whereas Coagulase-negative Staphylococcus and Cutibacterium spp. strains were not if these strains grew only on one sole sample. The antibiotic susceptibility of Staphylococcus sp. strains and the susceptibility to FA of Cutibacterium sp. strains had been determined using disk diffusion methods, as described for Staphylococcus sp. in the CASFM/EUCAST guidelines. The mean FA consumption was 0.6 daily defined doses/1000 patient days. FA was prescribed for OOII due to Staphylococcus sp. and Cutibacterium sp. in 24 and 2 cases, respectively. Among 401 Staphylococcus sp. strains, there were 254 S. aureus (63.3%), 84 methicillin-resistant (20.9%) and 333 FA-susceptible (83.0%) strains. S. aureus and methicillin-sensitive strains were more likely to be susceptible to FA (p < 0.001). Among 39 Cutibacterium sp. strains, the FA inhibition zone diameter geometric mean was 28.6 mm (24-35 mm), suggesting that all these strains could be considered as susceptible to FA. These data suggested that FA could be more frequently used in OOII due to Staphylococcus sp. and Cutibacterium sp., subject to the absence of other resistant bacteria.
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Affiliation(s)
- Juliette Romaru
- Service de Médecine Interne, Maladies Infectieuses Et Immunologie Clinique, Hôpital Robert Debré, Avenue du Général Koenig, 51100, Reims, France
| | - Anne Limelette
- Laboratoire de Bactériologie, Pôle de Biologie, 51100, Reims, France
| | - Delphine Lebrun
- Service d'Orthopédie, Hôpital Maison Blanche, 51100, Reims, France
| | - Morgane Bonnet
- Pharmacie Hospitalière, Hôpital Robert Debré, 51100, Reims, France
| | | | - Yohan N'Guyen
- Service de Médecine Interne, Maladies Infectieuses Et Immunologie Clinique, Hôpital Robert Debré, Avenue du Général Koenig, 51100, Reims, France.
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Waqas MK, Sadia H, Khan MI, Omer MO, Siddique MI, Qamar S, Zaman M, Butt MH, Mustafa MW, Rasool N. Development and characterization of niosomal gel of fusidic acid: in-vitro and ex-vivo approaches. Des Monomers Polym 2022; 25:165-174. [PMID: 35711622 PMCID: PMC9196814 DOI: 10.1080/15685551.2022.2086411] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Niosomes are multilamellar vesicles that efficiently deliver active substance into skin systemic circulation or skin layers. They are used in topical drug delivery system to enhance the skin permeation of active substance. So, the prime objective of this study was to develop a niosomal gel of fusidic acid to increase its skin permeation. Different formulations of niosomes of fusidic acid were designed by varying the cholesterol to surfactant ratio. Formulations containing fusidic acid, cholesterol, dihexadecyl pyridinium chloride, Span 60, or Tween 60 were prepared by thin film hydration method in rotary evaporator. The thin film formed in rotary flask was hydrated by phosphate buffer saline of pH 7.2. The niosomes formed were characterized through entrapment efficiency, size, polydispersity index (PDI), and zeta potential. The S3 formulation containing span 60 showed the highest entrapment efficiency (EE) of niosomes, so it was incorporated into Carbopol gel. Determination of pH, spreadability, rheological, and ex vivo permeation studies was conducted of niosomal gel. The results of ex vivo permeation studies showed high permeation of fusidic acid when gel was applied to an albino rat skin. According to the results and previous studies of niosomes, it can be concluded that niosomes enhanced the permeation of fusidic acid through the skin.
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Affiliation(s)
- Muhammad Khurram Waqas
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Haleema Sadia
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Imran Khan
- Riphah Institute of Pharmaceutical Sciences, Riphah University Lahore Campus, Pakistan
| | - Muhammad Ovais Omer
- Department of Pharmacology and Toxicology, University of Veterinary and Animal Sciences Lahore, Pakistan
| | - Muhammad Irfan Siddique
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Shaista Qamar
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Zaman
- Faculty of Pharmacy, University of Central Punjab, Lahore, Pakistan
| | | | - Mian Waqar Mustafa
- Department of Pharmacy, Forman Christian College University, Lahore, Pakistan
| | - Naeem Rasool
- Department of Pharmacology and Toxicology, University of Veterinary and Animal Sciences Lahore, Pakistan
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Gasymov OK, Mammedzade AM, Bakhishova MJ, Guliyeva AJ, Ragona L, Molinari H. Sodium fusidate prevents protein aggregation of silk fibroin and offers new perspectives for human lens material disaggregation. Biophys Chem 2021; 279:106680. [PMID: 34537590 DOI: 10.1016/j.bpc.2021.106680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 01/30/2023]
Abstract
Silk fibroin (SF) is a non-pathological amyloidogenic protein prone, in solution, to the formation of amyloid-like aggregated species, displaying similarities in fibrillation kinetics with pathological amyloids, as widely reported in the literature. We show here, on the basis of different biophysical approaches (turbidity, Congo Red assays, CD, DLS and fluorescence), that fusidic acid (FA), a well-known antibiotic, acts on SF as an anti-aggregating agent in a dose-dependent manner, being also able to revert SF aggregation. FA binds to SF inducing changes in the environment of SF aromatic residues. We further provide the proof of principle that FA, already approved as drug on humans and used in ophthalmic preparations, displays its anti-aggregation properties also on lens material derived from cataract surgery and is capable of reducing aggregation. Thus it is suggested that FA can be foreseen as a therapeutic treatment for cataract and other protein aggregation disorders.
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Affiliation(s)
- Oktay K Gasymov
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan.
| | - Aida M Mammedzade
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan
| | | | - Aytaj J Guliyeva
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan
| | - Laura Ragona
- Istituto di Scienze e Tecnologie Chimiche (SCITEC), CNR, via Corti 12, 20133 Milano, Italy.
| | - Henriette Molinari
- Istituto di Scienze e Tecnologie Chimiche (SCITEC), CNR, via Corti 12, 20133 Milano, Italy
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11
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Singh V, Dziwornu GA, Mabhula A, Chibale K. Rv0684/ fusA1, an Essential Gene, Is the Target of Fusidic Acid and Its Derivatives in Mycobacterium tuberculosis. ACS Infect Dis 2021; 7:2437-2444. [PMID: 34196521 DOI: 10.1021/acsinfecdis.1c00195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, is a major global health concern given the increase in multiple forms of drug-resistant TB. This underscores the importance of a continuous pipeline of new anti-TB agents. Drug repurposing has shown promise in expanding the therapeutic options for TB chemotherapy. Fusidic acid (FA), a natural product-derived antibiotic, is one such candidate for repurposing. The present study aimed to understand the mechanism of action of FA and its selected analogs in M. tuberculosis. By using chemical biology and genetics, we identified elongation factor G as the target of FA in M. tuberculosis. We showed essentiality of its encoding gene fusA1 in M. tuberculosis by demonstrating that the transcriptional silencing of fusA1 is bactericidal in vitro and in macrophages. Thus, this work validated a novel drug target FusA1 in M. tuberculosis.
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Affiliation(s)
- Vinayak Singh
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
- Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
| | - Godwin Akpeko Dziwornu
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Amanda Mabhula
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
- Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
| | - Kelly Chibale
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
- Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
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Cé R, Pacheco BZ, Ciocheta TM, Barbosa FS, Alves ADCS, Dallemole DR, Lavayen V, Guterres SS, Steppe M, Pohlmann AR. A set of synthetic data, antibacterial evaluation and bacterial interaction with lipid-core nanocapsules containing fusidic acid. Data Brief 2021; 36:107089. [PMID: 34026983 PMCID: PMC8131989 DOI: 10.1016/j.dib.2021.107089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/15/2022] Open
Abstract
A set of synthetic data, of antibacterial evaluation against gram-positive bacteria, as well as, the interaction of bacterial with lipid-core nanocapsules containing fusidic acid is presented here. In this data set, the analytical data are detailed; serial microdilution; nanoparticle tracking analysis; transmission electron microscopy; minimum inhibitory concentration; diameter size and zeta potential, and infra-red of the formulations before and after contact with bacteria.
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Affiliation(s)
- Rodrigo Cé
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Barbara Z. Pacheco
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Taiane M. Ciocheta
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Fabio S. Barbosa
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Aline de CS Alves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Danieli R. Dallemole
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Vladimir Lavayen
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, Brazil
- Departamento de Química Inorgânica Instituto de Química, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, Brazil
| | - Silvia S. Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Martin Steppe
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
| | - Adriana R. Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, Brazil
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13
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Hajikhani B, Goudarzi M, Kakavandi S, Amini S, Zamani S, van Belkum A, Goudarzi H, Dadashi M. The global prevalence of fusidic acid resistance in clinical isolates of Staphylococcus aureus: a systematic review and meta-analysis. Antimicrob Resist Infect Control 2021; 10:75. [PMID: 33933162 PMCID: PMC8088720 DOI: 10.1186/s13756-021-00943-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND AND AIM Staphylococcus aureus (S. aureus) is one of the most common pathogens causing nosocomial and community-acquired infections with high morbidity and mortality rates. Fusidic acid has been increasingly used for the treatment of infections due to methicillin-susceptible S. aureus (MSSA) and methicillin-resistant S. aureus (MRSA). The present study aimed to determine the precise prevalence of fusidic acid resistant MRSA (FRMRSA), fusidic acid resistant MSSA (FRMSSA), and total fusidic acid resistant S. aureus (FRSA) on a global scale. METHODS Several international databases including Medline, Embase, and the Web of Sciences were searched (2000-2020) to discern studies addressing the prevalence of FRSA, FRMRSA, and FRMSSA. STATA (version14) software was used to interpret the data. RESULTS Of the 1446 records identified from the databases, 215 studies fulfilled the eligibility criteria for the detection of FRSA (208 studies), FRMRSA (143 studies), and FRMSSA (71 studies). The analyses manifested that the global prevalence of FRSA, FRMRSA, and FRMSSA was 0.5%, 2.6% and 6.7%, respectively. CONCLUSION This meta-analysis describes an increasing incidence of FRSA, FRMSSA, and FRMRSA. These results indicate the need for prudent prescription of fusidic acid to stop or diminish the incidence of fusidic acid resistance as well as the development of strategies for monitoring the efficacy of fusidic acid use.
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Affiliation(s)
- Bahareh Hajikhani
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sareh Kakavandi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sana Amini
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samira Zamani
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alex van Belkum
- Data Analytics Unit, bioMérieux 3, Route de Port Michaud, La Balme Les Grottes, France
| | - Hossein Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Dadashi
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
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14
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Shalaby MM, Samir R, Goma FAZM, Rammadan MA. Enhanced fusidic acid transdermal delivery achieved by newly isolated and optimized Bacillus cereus Keratinase. ACTA ACUST UNITED AC 2021; 30:e00620. [PMID: 33996524 PMCID: PMC8099499 DOI: 10.1016/j.btre.2021.e00620] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 04/14/2021] [Indexed: 10/25/2022]
Abstract
The expanding interest in bioremediation of poorly degradable wastes has led to the discovery of many microbial enzymes capable of degrading recalcitrant substances such as keratinaceous wastes that are produced in vast quantities on daily basis. Such enzymes don't only work as a bioremediation tool but also have multiple beneficial applications. Hence, environmental samples were collected from sewage water, soils, animal bodies and feces in order to isolate keratinase producing organisms. Keratinolytic isolates were isolated from sewage water; soils; animal bodies; animal feces, and identified both traditionally and molecularly through 16S-rRNA sequencing to be Bacillus cereus strain. Produced keratinase was purified by centrifugation, ammonium sulfate precipitation, and HPLC, then assayed using Azokeratine based analysis. keratinase quantification yielded a 420 ± 1.63 U/mL. Optimum production was obtained at 40 °C, pH 7, 3 days incubation, 0.5 % substrate, 0.4 g/l magnesium ion, 2% v/v inoculum, 0.5 g/l NaCl, 0.4 g/l K2HPO4, and 0.3 g/l KH2PO4. Production was increased by 1.9 fold after acclimatization to reach 809 ± 2.49 U/mL in only 2 days. Thermal and pH stability testing revealed the effectiveness of the isolated keratinase over a wide range of temperatures at neutral pH. Finally, isolated keratinase enhanced fusidic acid topical penetration to treat induced deep skin bacterial infection in mice. A 1.4 fold decrease in treatment period and a 2 log cycle reduction in the viable count of Staphylococcus aureus were noticed in keratinase/fusidic acid treated mice compared to mice treated with fusidic acid alone. This study shed some light on a simple keratinase production optimization technique and suggested a promising medical application of this enzyme as a drug delivery agent.
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Affiliation(s)
- Mohab M Shalaby
- Microbiology & Immunology Department, Faculty of pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Reham Samir
- Microbiology & Immunology Department, Faculty of pharmacy, Cairo University, Cairo, Egypt
| | - Fatma Al-Zahraa M Goma
- Microbiology & Immunology Department, Faculty pharmacy (Girls) - Al-Azhar University, Cairo, Egypt
| | - Mohammed A Rammadan
- Microbiology & Immunology Department, Faculty of pharmacy, Cairo University, Cairo, Egypt
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15
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Marian E, Tita B, Duteanu N, Vicas L, Ciocan S, Jurca T, Antal L, Tica O, Mureşan M, Pallag A, Micle O. Antimicrobial activity of fusidic acid inclusion complexes. Int J Infect Dis 2020; 101:65-73. [PMID: 33011279 DOI: 10.1016/j.ijid.2020.09.1465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 08/13/2020] [Revised: 09/24/2020] [Accepted: 09/24/2020] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES To synthesize and characterize the inclusion complexes of fusidic acid with β - cyclodextrin, followed by the evaluation of their antimicrobial activity against pure strain (Staphylococcus aureus ATCC 25,923) and isolated Staphylococcus from clinical cases. METHODS The desired compounds were synthesized using molar ratio of fusidic acid: β-cyclodextrin of 1:1. Synthesized compounds were analyzed by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Thermal Analysis, and the results confirmed the formation of inclusion compounds by fusidic acid with β-cyclodextrin. RESULTS Physical-chemical characterization confirmed the preparation of desired inclusion compounds, and the antimicrobial test confirmed that all compounds obtained have antimicrobial activity. Antimicrobial activity of freeze-drying complex againstS. aureus is similar with pure fusidic acid activity, being better than the cefoxitin one. Similar behavior was observed against methicillin-resistant S. aureus and S. epidermidis. CONCLUSIONS In the present work, three different inclusion complexes of fusidic acid were prepared using three different preparation methods. All inclusion complexes obtained presented good antimicrobial activity against differentS. aureus strains. Antimicrobial activity of these new prepared compounds was observed to be better than that of cefoxitin.
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Affiliation(s)
- Eleonora Marian
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Bogdan Tita
- Vasile Goldis" Western University of Arad, Pharmacy Faculty, 86 Liviu Rebreanu Street, 310045, Arad, Romania
| | - Narcis Duteanu
- University Politehnica of Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, 2 Victoria Square, 300006, Timisoara, Romania.
| | - Laura Vicas
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Stefania Ciocan
- University Politehnica of Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, 2 Victoria Square, 300006, Timisoara, Romania
| | - Tunde Jurca
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Liana Antal
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania.
| | - Otilia Tica
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Mariana Mureşan
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Annamaria Pallag
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
| | - Otilia Micle
- University of Oradea, Medicine and Pharmacy Faculty, Piata 1 Decembrie, 410028, Oradea, Romania
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Salih M, Walvekar P, Omolo CA, Elrashedy AA, Devnarain N, Fasiku V, Waddad AY, Mocktar C, Govender T. A self-assembled polymer therapeutic for simultaneously enhancing solubility and antimicrobial activity and lowering serum albumin binding of fusidic acid. J Biomol Struct Dyn 2020; 39:6567-6584. [PMID: 32772814 DOI: 10.1080/07391102.2020.1803140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The global antimicrobial resistance crisis has prompted worldwide efforts to develop new and more efficient antimicrobial compounds, as well as to develop new drug delivery strategies and targeting mechanisms. This study aimed to synthesize a novel polyethylene glycol-fusidic acid (PEG-FA) conjugate for self-assembly into nano-sized structures and explore its potential for simultaneously enhancing aqueous solubility and antibacterial activity of FA. In addition, the ability of PEG-FA to bind to HSA with lower affinity than FA is also investigated. Haemolysis and in vitro cytotoxicity studies confirmed superior biosafety of the novel PEG-FA compared to FA. The water solubility of FA after PEG conjugation was increased by 25-fold compared to the bare drug. PEG-FA nanoparticles displayed particle size, polydispersity index and zeta potential of 149.3 ± 0.21 nm, 0.267 ± 0.01 and 5.97 ± 1.03 mV, respectively. Morphology studies using high-resolution transmission electron microscope revealed a homogenous spherical shape of the PEG-FA nanoparticles. In silico studies showed that Van der Waals forces facilitated PEG-FA self-assembly. HSA binding studies showed that PEG-FA had very weak or no interaction with HSA using in silico molecular docking (-2.93 kcal/mol) and microscale thermophoresis (Kd=14999 ± 1.36 µM), which may prevent bilirubin displacement. Conjugation with PEG did not inhibit the antibacterial activity of FA but rather enhanced it by 2.5-fold against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus, compared to the bare FA. These results show that PEG-FA can simultaneously enhance solubility and antibacterial activity of FA, whilst also reducing binding of HSA to decrease its side effects.
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Affiliation(s)
- Mohammed Salih
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Pavan Walvekar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.,Department of Chemistry of Natural and Microbial Products, Division of Pharmaceutical and Drug Industries, National Research Centre, Cairo, Egypt
| | - Ahmed A Elrashedy
- School of Pharmacy and Health Sciences, United States International University, Nairobi, Kenya
| | - Nikita Devnarain
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Victoria Fasiku
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Ayman Y Waddad
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Chen W, He C, Yang H, Shu W, Cui Z, Tang R, Zhang C, Liu Q. Prevalence and molecular characterization of methicillin-resistant Staphylococcus aureus with mupirocin, fusidic acid and/or retapamulin resistance. BMC Microbiol 2020; 20:183. [PMID: 32600253 PMCID: PMC7325228 DOI: 10.1186/s12866-020-01862-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 01/20/2020] [Accepted: 06/16/2020] [Indexed: 12/22/2022] Open
Abstract
Background The data on the prevalence of resistance to mupirocin (MUP), fusidic acid (FA) and retapamulin (RET) in methicillin-resistant Staphylococcus aureus (MRSA) from China are still limited. This study aimed to examine these three antibiotics resistance in 1206 MRSA clinical isolates from Eastern China. Phenotypic MUP, FA and RET resistance was determined by minimum inhibitory concentrations (MICs), and genotypic by PCR and DNA sequencing of the mupA/B, fusB-D, cfr, vgaA/Av/ALC/B/C/E, lsaA-C/E and salA and mutations in ileS, fusA/E, rplC, and 23S RNA V domain. The genetic characteristics of resistance isolates were conducted by pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Results Overall MRSA MUP, FA and RET resistance was low (5.1, 1.0 and 0.3%, respectively). MupA was the mechanism of high-level MUP resistance. All low-level MUP resistance isolates possessed an equivocal mutation N213D in IleS; of these, 2 reported an additional V588F mutation with an impact on the Rossman fold. FusA mutations, such as L461K, H457Q, H457Y and V90I were the primary FA mechanisms among high-level resistance isolates, most of which also contained fusC; however, all low-level resistance strains carried fusB. Except lsaE gene detected in one isolate, no other resistance mechanisms tested were found among RET-resistant isolates. Additionally, sixteen PFGE types (A-P) were observed, among which type B was the most common (49/76, 64.5%), followed by types E and G (4/76, 5.3% each) and types C and M (3/76, 3.9% each). All resistant strains were divided into 15 ST types by MLST. ST764 (24/76, 31.6%), ST630 (11/76, 14.5%), ST239 (9/76, 11.8%) and ST5 (7/76, 9.2%) were the major types. PFGE type B isolates with the aforementioned STs were mainly found in mupirocin resistant isolates. Conclusions MUP, FA and RET exhibited highly activity against the MRSA isolates. Acquired genes and chromosome-borne genes mutations were responsible for MUP and FA resistance; however, the mechanism for some RET-resistant isolates remains to be further elucidated. Also, the surveillance to MUP in MRSA should be strengthened to prevent elevated resistance due to the expansion of clones.
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Affiliation(s)
- Wenjing Chen
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Chunyan He
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Han Yang
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Wen Shu
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Zelin Cui
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Rong Tang
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China
| | - Chuanling Zhang
- Department of Clinical Laboratory, Xiaoshan Hospital, Hangzhou, Zhejiang Province, China
| | - Qingzhong Liu
- Department of Clinical Laboratory, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Rd, Shanghai, 200080, People's Republic of China.
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18
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Jyoti K, Malik G, Chaudhary M, Sharma M, Goswami M, Katare OP, Singh SB, Madan J. Chitosan and phospholipid assisted topical fusidic acid drug delivery in burn wound: Strategies to conquer pharmaceutical and clinical challenges, opportunities and future panorama. Int J Biol Macromol 2020; 161:325-335. [PMID: 32485249 DOI: 10.1016/j.ijbiomac.2020.05.230] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 02/08/2023]
Abstract
Burn is the immense public health issue globally. Low and middle income countries face extensive deaths owing to burn injuries. Availability of conventional therapies for burns has always been painful for patients as well as expensive for our health system. Pharmaceutical experts are still searching reliable, cheap, safe and effective treatment options for burn injuries. Fusidic acid is an antibiotic of choice for the management of burns. However, fusidic acid is encountering several pharmaceutical and clinical challenges like poor skin permeability and growing drug resistance against burn wound microbes like Methicillin resistant Staphylococcus aureus (MRSA). Therefore, an effort has been made to present a concise review about molecular pathway followed by fusidic acid in the treatment of burn wound infection in addition to associated pros and cons. Furthermore, we have also summarized chitosan and phospholipid based topical dermal delivery systems customized by our team for the delivery of fusidic acid in burn wound infections on case-to-case basis. However, every coin has two sides. We recommend the integration of in-silico docking techniques with natural biomacromolecules while designing stable, patient friendly and cost effective topical drug delivery systems of fusidic acid for the management of burn wound infection as future opportunities.
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Affiliation(s)
- Kiran Jyoti
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India; IKG Punjab Technical University, Jalandhar, Punjab, India
| | - Garima Malik
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | | | - Monika Sharma
- University Institute of Pharmaceutical Sciences, Chandigarh University, Mohali, Punjab, India
| | - Manish Goswami
- University Institute of Pharmaceutical Sciences, Chandigarh University, Mohali, Punjab, India
| | - Om Prakash Katare
- University Institute of Pharmaceutical Sciences, Punjab University, Chandigarh, India
| | - Shashi Bala Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India.
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Singh K, Kaur G, Shanika PS, Dziwornu GA, Okombo J, Chibale K. Structure-activity relationship analyses of fusidic acid derivatives highlight crucial role of the C-21 carboxylic acid moiety to its anti-mycobacterial activity. Bioorg Med Chem 2020; 28:115530. [PMID: 32362386 DOI: 10.1016/j.bmc.2020.115530] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/22/2020] [Indexed: 12/01/2022]
Abstract
Fusidic acid (FA) is a potent congener of the fusidane triterpenoid class of antibiotics. Structure-activity relationship (SAR) studies suggest the chemical structure of FA is optimal for its antibacterial activity. SAR studies from our group within the context of a drug repositioning approach in tuberculosis (TB) suggest that, as with its antibacterial activity, the C-21 carboxylic acid group is indispensable for its anti-mycobacterial activity. Further studies have led to the identification of 16-deacetoxy-16β-ethoxyfusidic acid (58), an analog which exhibited comparable activity to FA with an in vitro MIC99 value of 0.8 µM. Preliminary SAR studies around the FA scaffold suggested that the hydrophobic side chain at C-20, like the C-11 OH group, was required for activity. The C-3 OH group, however, can be functionalized to obtain more potent compounds.
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Affiliation(s)
- Kawaljit Singh
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa; South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Gurminder Kaur
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | | | | | - John Okombo
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa; South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa; Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa.
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Okur ME, Ayla Ş, Yozgatlı V, Aksu NB, Yoltaş A, Orak D, Sipahi H, Üstündağ Okur N. Evaluation of burn wound healing activity of novel fusidic acid loaded microemulsion based gel in male Wistar albino rats. Saudi Pharm J 2020; 28:338-348. [PMID: 32194336 PMCID: PMC7078556 DOI: 10.1016/j.jsps.2020.01.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [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: 04/07/2019] [Accepted: 01/29/2020] [Indexed: 01/26/2023] Open
Abstract
The objective of the present research was to examine the possible usage of microemulsion based gel for fusidic acid (FA) dermal application as burn wound treatment. During the preparation of microemulsion, ethyl oleate as oil phase, tween 80 as a surfactant, ethanol as co-surfactant, water as aqueous phase were used. The prepared microemulsions were evaluated for clarity, pH, viscosity and FA content. Moreover, stability, sterility, antibacterial activity, in vitro release of the formulations were also evaluated. The results showed that the FA loaded microemulsion and microemulsion based gel formation and characteristics were related to many parameters of the components. The performed optimized microemulsion-based gel showed good stability over a period of 3 months. The antibacterial activity of microemulsion-based gel was found to be comparable with marketed cream. RAW 264.7 macrophages were used to determine cell viability (MTT assay) and nitric oxide production. MBG and FA-MBG significantly inhibit the production of the inflammatory mediator NO in LPS-stimulated RAW 264.7 cells in a concentration-dependent manner. The wound healing property was evaluated by histopathological examination and by measuring the wound contraction. The % of wound area in rats treated with FA (2%) loaded microemulsion based gel ranged from 69.30% to 41.39% in the period from 3 to 10 days. In conclusion, FA loaded microemulsion based gel could be offered as encouraging strategy as dermal systems for the burn wound treatment.
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Affiliation(s)
- Mehmet Evren Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmacology, İstanbul, Turkey
| | - Şule Ayla
- Istanbul Medipol University, School of Medicine, Department of Histology and Embryology, Beykoz, 34810 Istanbul, Turkey
| | - Vildan Yozgatlı
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Bornova, 35100 Izmir, Turkey
| | - Neşe Buket Aksu
- Altınbas University, School of Pharmacy, Department of Pharmaceutical Technology, 34217 Istanbul, Turkey
| | - Ayşegül Yoltaş
- Ege University, Faculty of Science, Department of Biology, Fundamental and Industrial Microbiology Division, Bornova, Izmir, Turkey
| | - Duygu Orak
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey.,Yeditepe University, Faculty of Engineering, Genetics and Bioengineering Department, Istanbul, Turkey
| | - Hande Sipahi
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey
| | - Neslihan Üstündağ Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey
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21
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Frosini SM, Bond R, Rantala M, Grönthal T, Rankin SC, O’Shea K, Timofte D, Schmidt V, Lindsay J, Loeffler A. Genetic resistance determinants to fusidic acid and chlorhexidine in variably susceptible staphylococci from dogs. BMC Microbiol 2019; 19:81. [PMID: 31023224 PMCID: PMC6485160 DOI: 10.1186/s12866-019-1449-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 04/01/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Concern exists that frequent use of topically-applied fusidic acid (FA) and chlorhexidine (CHX) for canine pyoderma is driving clinically relevant resistance, despite rare description of FA and CHX genetic resistance determinants in canine-derived staphylococci. This study aimed to determine minimum inhibitory concentrations (MICs) and investigate presence of putative resistance determinants for FA and CHX in canine-derived methicillin-resistant (MR) and -susceptible (MS) staphylococci. Plasmid-mediated resistance genes (fusB, fusC, fusD, qacA/B, smr; PCR) and MICs (agar dilution) of FA and CHX were investigated in 578 staphylococci (50 MR S. aureus [SA], 50 MSSA, 259 MR S. pseudintermedius [SP], 219 MSSP) from Finland, U.S.A., North (NUK) and South-East U.K. (SEUK) and Germany. In all isolates with FA MIC ≥64 mg/L (n = 27) fusA and fusE were amplified and sequenced. RESULTS FA resistance determinants (fusA mutations n = 24, fusB n = 2, fusC n = 36) were found in isolates from all countries bar U.S.A. and correlated with higher MICs (≥1 mg/L), although 4 SP isolates had MICs of 0.06 mg/L despite carrying fusC. CHX MICs did not correlate with qacA/B (n = 2) and smr (n = 5), which were found in SEUK SA, and SP from NUK and U.S.A. CONCLUSIONS Increased FA MICs were frequently associated with fusA mutations and fusC, and this is the first account of fusB in SP. Despite novel description of qacA/B in SP, gene presence did not correlate with CHX MIC. Selection pressure from clinical use might increase prevalence of these genetic determinants, but clinical significance remains uncertain in relation to high skin concentrations achieved by topical therapy.
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Affiliation(s)
- S-M Frosini
- Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - R. Bond
- 0000 0004 0425 573Xgrid.20931.39Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA UK
| | - M. Rantala
- 0000 0004 0410 2071grid.7737.4Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - T. Grönthal
- 0000 0004 0410 2071grid.7737.4Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - S. C. Rankin
- 0000 0004 1936 8972grid.25879.31Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3850 Spruce Street, Philadelphia, PA 19104 USA
| | - K. O’Shea
- 0000 0004 1936 8972grid.25879.31Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3850 Spruce Street, Philadelphia, PA 19104 USA
| | - D. Timofte
- 0000 0004 1936 8470grid.10025.36Institute of Veterinary Science, University of Liverpool, Chester High Road, Neston, CH64 7TE UK
| | - V. Schmidt
- 0000 0004 1936 8470grid.10025.36Institute of Veterinary Science, University of Liverpool, Chester High Road, Neston, CH64 7TE UK
| | - J. Lindsay
- 0000 0000 8546 682Xgrid.264200.2Institute of Infection and Immunity, St George’s, University of London, Cranmer Terrace, London, SW17 0RE UK
| | - A. Loeffler
- 0000 0004 0425 573Xgrid.20931.39Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA UK
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Cao Z, Li S, Lv J, Gao H, Chen G, Awakawa T, Abe I, Yao X, Hu D. Biosynthesis of clinically used antibiotic fusidic acid and identification of two short-chain dehydrogenase/reductases with converse stereoselectivity. Acta Pharm Sin B 2019; 9:433-442. [PMID: 30972287 PMCID: PMC6437595 DOI: 10.1016/j.apsb.2018.10.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/17/2018] [Accepted: 10/25/2018] [Indexed: 11/28/2022] Open
Abstract
Fusidic acid is the only fusidane-type antibiotic that has been clinically used. However, biosynthesis of this important molecule in fungi is poorly understood. We have recently elucidated the biosynthesis of fusidane-type antibiotic helvolic acid, which provides us with clues to identify a possible gene cluster for fusidic acid (fus cluster). This gene cluster consists of eight genes, among which six are conserved in the helvolic acid gene cluster except fusC1 and fusB1. Introduction of the two genes into the Aspergillus oryzae NSAR1 expressing the conserved six genes led to the production of fusidic acid. A stepwise introduction of fusC1 and fusB1 revealed that the two genes worked independently without a strict reaction order. Notably, we identified two short-chain dehydrogenase/reductase genes fusC1 and fusC2 in the fus cluster, which showed converse stereoselectivity in 3-ketoreduction. This is the first report on the biosynthesis and heterologous expression of fusidic acid.
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Affiliation(s)
- Zhiqin Cao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Shaoyang Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Jianming Lv
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Guodong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
- Corresponding authors.
| | - Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
- Corresponding authors.
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Ni J, Guo M, Cao Y, Lei L, Liu K, Wang B, Lu F, Zhai R, Gao X, Yan C, Wang H, Bi Y. Discovery, synthesis of novel fusidic acid derivatives possessed amino-terminal groups at the 3-hydroxyl position with anticancer activity. Eur J Med Chem 2018; 162:122-131. [PMID: 30445262 DOI: 10.1016/j.ejmech.2018.10.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 12/17/2022]
Abstract
A series of novel fusidic acid (FA) derivatives were synthesized and screened for their in vitro cytotoxicity against the Hela, U87, KBV and MKN45 cancer cell lines. Selected FA derivatives with anti-tumor activity were firstly identified including compound 4, which exhibited good anti-proliferative activity with IC50 values in the range of 1.26-3.57 μM. Further research revealed that compound 4 induced Hela cells to undergo apoptosis by increasing the ratio of the cells in the Sub-G0/G1 phase via decreasing the neo-synthesized proteins in a dose-dependent manner from 1 to 10 μM. Compound 4 also showed good in vivo anti-tumor activity against the xenograft tumor of Hela cells and had no apparent toxicity. This study highlights the advantage of introducing the medium-length amino-terminal groups at the 3-OH position of FA to enhance its anti-tumor activity and suggests that compound 4 provides a starting point for designing more potent derivatives in the future.
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Affiliation(s)
- Jingxuan Ni
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Mengqi Guo
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Yucheng Cao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Lei Lei
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China
| | - Kangli Liu
- Institute of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, PR China
| | - Binghua Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Fangfang Lu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Rong Zhai
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Xiangwei Gao
- Institute of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, PR China
| | - Chunhong Yan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, GA, 30912, USA
| | - Hongbo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China.
| | - Yi Bi
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China.
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Frosini SM, Bond R, Loeffler A, Larner J. Opportunities for topical antimicrobial therapy: permeation of canine skin by fusidic acid. BMC Vet Res 2017; 13:345. [PMID: 29162115 PMCID: PMC5697365 DOI: 10.1186/s12917-017-1270-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 05/23/2017] [Accepted: 11/13/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Staphylococcal infection of the canine epidermis and hair follicle is amongst the commonest reasons for antimicrobial prescribing in small animal veterinary practice. Topical therapy with fusidic acid (FA) is an attractive alternative to systemic therapy based on low minimum inhibitory concentrations (MICs, commonly <0.03 mg/l) documented in canine pathogenic staphylococci, including strains of MRSA and MRSP (methicillin-resistant Staphylococcus aureus and S. pseudintermedius). However, permeation of canine skin by FA has not been evaluated in detail. This study aimed to define the degree and extent of FA permeation in canine skin in vitro from two sites with different hair follicle density following application of a licensed ophthalmic formulation that shares the same vehicle as an FA-betamethasone combination product approved for dermal application in dogs. Topical FA application was modelled using skin held in Franz-type diffusion cells. Concentrations of FA in surface swabs, receptor fluid, and transverse skin sections of defined anatomical depth were determined using high-performance liquid chromatography and ultraviolet (HPLC-UV) analysis. RESULTS The majority of FA was recovered by surface swabs after 24 h, as expected (mean ± SEM: 76.0 ± 17.0%). FA was detected within 424/470 (90%) groups of serial sections of transversely cryotomed skin containing follicular infundibula, but never in 48/48 (100%) groups of sections containing only deeper follicular structures, nor in receptor fluid, suggesting that FA does not permeate beyond the infundibulum. The FA concentration (mean ± SEM) in the most superficial 240 μm of skin was 2000 ± 815 μg/g. CONCLUSIONS Topically applied FA can greatly exceed MICs for canine pathogenic staphylococci at the most common sites of infection. Topical FA therapy should now be evaluated using available formulations in vivo as an alternative to systemic therapy for canine superficial bacterial folliculitis.
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Affiliation(s)
- Sian-Marie Frosini
- Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, UK.
| | - Ross Bond
- Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, UK
| | - Anette Loeffler
- Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, UK
| | - Jo Larner
- Research Centre for Topical Drug Delivery and Toxicology, Department of Pharmacy, Pharmacology & Postgraduate Medicine, University of Hertfordshire, Hatfield, UK
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25
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Varona-Barquín A, Iglesias-Losada JJ, Ezpeleta G, Eraso E, Quindós G. Vancomycin heteroresistant community associated methicillin-resistant Staphylococcus aureus ST72-SCCmecIVa strain colonizing the nostrils of a five-year-old Spanish girl. Enferm Infecc Microbiol Clin 2016; 35:148-152. [PMID: 27590877 DOI: 10.1016/j.eimc.2016.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/27/2016] [Accepted: 07/29/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES During a community methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization study, an MRSA strain with vancomycin hetero-resistance (h-VISA) was isolated from a five year-old girl with tetralogy of Fallot without previous exposure to vancomycin. An extended nasal colonization study was performed on all her close relatives. RESULTS Only the patient and her sister were colonized by an h-VISA MRSA strain (clone USA 700, ST72, t148, agr 1 and SCCmec IVa). Mupirocin decolonisation was effective in the elder sister. A new nasal decolonisation in the younger girl using fusidic acid was also successful. However, after decolonisation both sisters were colonized by a methicillin-susceptible S. aureus (ST30, t012 and agr 3) previously isolated from their mother's nostrils. CONCLUSION As S. aureus have a great capacity to spread among people in close contact, knowledge of a patients' colonization status, tracing contacts, and a correct management are critical issues for the successful containment of multiresistant staphylococci.
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Affiliation(s)
- Aketza Varona-Barquín
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain
| | | | - Guillermo Ezpeleta
- Departamento de Medicina Preventiva y Salud Pública, UFI 11/25 'Microbios y Salud', Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain; Servicio de Medicina Preventiva e Higiene Hospitalaria, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Elena Eraso
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain
| | - Guillermo Quindós
- Laboratorio de Micología Médica, UFI 11/25 'Microbios y Salud', Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Bilbao, Spain.
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26
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Cluzel C, Pralong P, Logerot S, Sabatier-Vincent M, Tardieu M, Pinel N, Leccia MT. [Lethal Lyell's syndrome induced by fusidic acid]. Ann Dermatol Venereol 2016; 143:215-8. [PMID: 26831945 DOI: 10.1016/j.annder.2015.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 10/23/2015] [Accepted: 12/16/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Herein, we report the first case of toxic epidermal necrosis due to oral fusidic acid having a fatal outcome. PATIENTS AND METHODS An 82-year-old woman was referred to our dermatology department for generalized bullous skin eruption. Clinical examination showed fever, oral and ocular ulcerations, and epidermal detachment involving more than 70 % of her body surface area together with a positive Nikolsky sign. Lyell's syndrome was diagnosed. Cutaneous histology showed total epidermal necrosis and a normal dermis. Oral fusidic acid had been prescribed 12 days earlier for a chronic sacral pressure sore. No other treatment had been introduced during the previous two months. The outcome was fatal within 24 hours. DISCUSSION Fusidic acid is commonly used topically by dermatologists for limited staphylococcal skin infections. Oral treatment is rare and is recommended only for skin, bone or joint infections. This is the first reported case of toxic epidermal necrolysis due to oral fusidic acid. The French national drug safety monitoring register contains only one case in which fusidic acid was a possible culprit. CONCLUSION Fusidic acid must be considered a potential source of serious cutaneous adverse reactions, particularly toxic epidermal necrolysis.
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Affiliation(s)
- C Cluzel
- Clinique universitaire de dermatologie, allergologie et photobiologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
| | - P Pralong
- Clinique universitaire de dermatologie, allergologie et photobiologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France.
| | - S Logerot
- Centre régional de pharmacovigilance, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
| | - M Sabatier-Vincent
- Clinique universitaire de dermatologie, allergologie et photobiologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
| | - M Tardieu
- Clinique universitaire de dermatologie, allergologie et photobiologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
| | - N Pinel
- Service d'anatomo-pathologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
| | - M-T Leccia
- Clinique universitaire de dermatologie, allergologie et photobiologie, CHU de Grenoble, boulevard de la Chantourne, CS10217, 38043 Grenoble cedex 9, France
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27
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Klein S, Nurjadi D, Eigenbrod T, Bode KA. Evaluation of antibiotic resistance to orally administrable antibiotics in staphylococcal bone and joint infections in one of the largest university hospitals in Germany: is there a role for fusidic acid? Int J Antimicrob Agents 2015; 47:155-7. [PMID: 26774158 DOI: 10.1016/j.ijantimicag.2015.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 12/01/2015] [Accepted: 12/01/2015] [Indexed: 10/22/2022]
Abstract
Bone and joint infections (BJIs) are often difficult to treat. Staphylococcus spp. is the major pathogen causing these infections, which is often associated with biofilm formation on prosthetic materials. Therapeutic measures are complex, ranging from surgical intervention to initial intravenous and supportive long-term oral antibiotic therapy. The options for oral antimicrobial therapy are limited, mainly due to the resistance profile of the causative pathogen and the unfavourable pharmacodynamic and pharmacokinetic properties of most antibiotics in biofilm. Data analysis over a 5-year period was performed on staphylococci isolated from BJI patients in the Orthopaedic Department of the University Hospital Heidelberg (Heidelberg, Germany) to assess the plausibility of fusidic acid (FA)-based alternative oral treatment regimens. Six percent of BJIs were caused by meticillin-resistant Staphylococcus aureus (MRSA), and multiresistance was common. Over 75% of MRSA in BJIs were resistant to the commonly used rifampicin (RIF)-based combinations. Resistance to FA-based combinations was high. However, over 80% were susceptible to the combination RIF+FA. In coagulase-negative staphylococci, resistance to RIF-based combinations was similar to FA-based combinations. Almost two-thirds of the isolates tested were susceptible to RIF+FA. These data suggest FA as a possible option as a substitution for RIF or as a combination companion in case of resistance or unavailability.
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Affiliation(s)
- Sabrina Klein
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University Hospital, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Dennis Nurjadi
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University Hospital, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany.
| | - Tatjana Eigenbrod
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University Hospital, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Konrad A Bode
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University Hospital, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
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Bachoumas K, Fiancette M, Lascarrou JB, Lacherade JC, Leclair F, Reignier J. Fatal rhabdomyolysis following the co-prescription of fusidic acid and pravastatin. Med Mal Infect 2015; 45:417-9. [PMID: 26472060 DOI: 10.1016/j.medmal.2015.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 07/22/2015] [Accepted: 09/10/2015] [Indexed: 11/24/2022]
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Park SH, Kim JK, Park K. In Vitro Antimicrobial Activities of Fusidic Acid and Retapamulin against Mupirocin- and Methicillin-Resistant Staphylococcus aureus. Ann Dermatol 2015; 27:551-6. [PMID: 26512169 PMCID: PMC4622889 DOI: 10.5021/ad.2015.27.5.551] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 02/10/2015] [Revised: 03/20/2015] [Accepted: 04/22/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The in vitro activities of retapamulin and fusidic acid against clinical isolates of mupirocin-resistant and methicillin-resistant Staphylococcus aureus (MRSA) from Korea are not well understood. OBJECTIVE This study aimed to determine the activities of retapamulin and fusidic acid against clinical isolates of mupirocin-resistant MRSA. METHODS Clinical isolates of mupirocin-resistant MRSA were collected from two tertiary hospitals. The minimal inhibitory concentrations of mupirocin, fusidic acid, and retapamulin were determined using agar dilution method. Polymerase chain reaction was used to confirm the identity of the species and the presence of resistance genes. Pulsed-field gel electrophoresis (PFGE) patterns of chromosomal DNA were used to determine the genetic similarity of high-level mupirocin-resistant isolates. RESULTS Of the 497 MRSA isolates tested, 22 (4.4%) were mupirocin-resistant. Of these, 9 (1.8%) and 13 (2.6%) had high-level and low-level mupirocin resistance, respectively. Analysis of the PFGE patterns of the high-level mupirocin-resistant MRSA isolates identified five clusters. All 13 of the low-level mupirocin-resistant isolates were resistant to fusidic acid but susceptible to retapamulin. However, among the 9 high-level mupirocin-resistant isolates, 56% were resistant to fusidic acid, and all were susceptible to retapamulin. CONCLUSION Retapamulin is highly active in vitro against Korean clinical isolates of high-level mupirocinand methicillin-resistant Staphylococcus aureus with different genetic backgrounds. Fusidic acid is more active against high-level mupirocin-resistant MRSA than low-level mupirocin-resistant MRSA.
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Affiliation(s)
- Sang Hyun Park
- Department of Dermatology, Wonkwang University School of Medicine, Iksan, Korea
| | - Jin Kyung Kim
- Department of Cosmetics, Wonkwang Health Science University, Iksan, Korea
| | - Kun Park
- Department of Dermatology, Wonkwang University School of Medicine, Iksan, Korea
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Chan JFW, Ma MKM, Chan GSW, Chan GCW, Choi GKY, Chan KH, Cheng VCC, Chan KW, Choy BY, Yuen KY. Rapid reduction of viruria and stabilization of allograft function by fusidic acid in a renal transplant recipient with JC virus-associated nephropathy. Infection 2015; 43:577-81. [PMID: 25944568 DOI: 10.1007/s15010-015-0721-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/04/2015] [Indexed: 12/22/2022]
Abstract
JC virus (JCV)-associated nephropathy has been increasingly recognized as a cause of allograft dysfunction with graft loss in renal transplant recipients. Like many other opportunistic viral infections in transplant recipients, there are currently limited therapeutic options for this condition. Fusidic acid has previously been reported to exhibit antiviral activity against JCV in in vitro assays. We report the first in vivo study to document the rapid reduction of JC viruria and stabilization of allograft function by oral fusidic acid (fusidate sodium) in a deceased donor renal transplant recipient with JCV-associated nephropathy and acute allograft dysfunction which did not improve initially to surgical relief of hydronephrosis and reduction of immunosuppressants. Rapid reduction of JC viruria detected by quantitative PCR and stabilization of renal function were observed. Fusidic acid has several practical advantages in this clinical setting, including a low EC50 against JCV, high plasma C max, long half-life, availability of both oral and intravenous formulations, excellent oral bioavailability, good patient tolerability, and lack of serious drug interactions with other drugs taken by renal transplant recipients. Further mechanistic and clinical studies are necessary to evaluate this treatment option for JCV-associated nephropathy.
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Affiliation(s)
- Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong Special Administrative Region, China.,Department of Microbiology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong Special Administrative Region, China.,Carol Yu Centre for Infection, The University of Hong Kong, 102 Pokfulam Road, Pokfulam, Hong Kong Special Administrative Region, China
| | - Maggie Kam-Man Ma
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Gavin Shueng-Wai Chan
- Department of Pathology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Gary Chi-Wang Chan
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Garnet Kwan-Yue Choi
- Department of Microbiology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kwok-Hung Chan
- Department of Microbiology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Vincent Chi-Chung Cheng
- Department of Microbiology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kwok-Wah Chan
- Department of Pathology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Bo-Ying Choy
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kwok-Yung Yuen
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong Special Administrative Region, China. .,Department of Microbiology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China. .,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong Special Administrative Region, China. .,Carol Yu Centre for Infection, The University of Hong Kong, 102 Pokfulam Road, Pokfulam, Hong Kong Special Administrative Region, China.
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Lotfy HM, Salem H, Abdelkawy M, Samir A. Spectrophotometric methods for simultaneous determination of betamethasone valerate and fusidic acid in their binary mixture. Spectrochim Acta A Mol Biomol Spectrosc 2015; 140:294-304. [PMID: 25615682 DOI: 10.1016/j.saa.2014.12.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 09/04/2014] [Revised: 11/09/2014] [Accepted: 12/17/2014] [Indexed: 06/04/2023]
Abstract
Five spectrophotometric methods were successfully developed and validated for the determination of betamethasone valerate and fusidic acid in their binary mixture. Those methods are isoabsorptive point method combined with the first derivative (ISO Point--D1) and the recently developed and well established methods namely ratio difference (RD) and constant center coupled with spectrum subtraction (CC) methods, in addition to derivative ratio (1DD) and mean centering of ratio spectra (MCR). New enrichment technique called spectrum addition technique was used instead of traditional spiking technique. The proposed spectrophotometric procedures do not require any separation steps. Accuracy, precision and linearity ranges of the proposed methods were determined and the specificity was assessed by analyzing synthetic mixtures of both drugs. They were applied to their pharmaceutical formulation and the results obtained were statistically compared to that of official methods. The statistical comparison showed that there is no significant difference between the proposed methods and the official ones regarding both accuracy and precision.
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Affiliation(s)
- Hayam Mahmoud Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
| | - Hesham Salem
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Mohammad Abdelkawy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
| | - Ahmed Samir
- Analytical Chemistry Department, Faculty of Pharmacy, MSA University, 6th October City, Egypt
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Zhang S, Wang S, Zhang Q, Chang CWT, Zhan J. Three new fusidic acid derivatives and their antibacterial activity. Bioorg Med Chem Lett 2015; 25:1920-4. [PMID: 25824664 DOI: 10.1016/j.bmcl.2015.03.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/11/2015] [Accepted: 03/13/2015] [Indexed: 10/23/2022]
Abstract
Two steroid acids, cephalosporin P1 and isocephalosporin P1, were isolated from Hapsidospora irregularis FERM BP-2511. These compounds are structurally related to fusidic acid. Their NMR data were completely assigned on the basis of the 2D NMR spectra. Incubation of these two compounds with Microbacterium oxydans CGMCC 1788 in Luria-Bertani broth yielded the same set of three new 3-dehydrogenated products, 3-keto-isocephalosporin P1, 3-keto-cephalosporin P1 and 6-deacetyl-3-keto-cephalosporin P1. The final pH of the bacterial culture was 9.0. Incubation of 3-keto-isocephalosporin P1 or 3-keto-cephalosporin P1 in Tris-HCl buffer (pH 9.0) revealed that these two compounds can convert to each other by shifting the acetyl group between C-6 and C-7. The acetyl group at C-6 or C-7 can also be removed by hydrolysis to yield the minor product 6-deacetyl-3-keto-cephalosporin P1. These fusidic acid derivatives were tested for the antibacterial activity against the Gram-positive pathogen Staphylococcus aureus. 3-Keto-cephalosporin P1 showed the highest activity among the five compounds, with a minimal inhibition concentration (MIC) of 4 μg/mL, which is more potent than the substrate cephalosporin P1. Both cephalosporin P1 and 3-keto-cephalosporin P1 were active against methicillin-resistant S. aureus, with the same MIC of 8 μg/mL.
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Affiliation(s)
- Shuwei Zhang
- Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322, United States
| | - Siyuan Wang
- Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322, United States
| | - Qian Zhang
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322, United States
| | - Cheng-Wei Tom Chang
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322, United States
| | - Jixun Zhan
- Department of Biological Engineering, Utah State University, 4105 Old Main Hill, Logan, UT 84322, United States.
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Lotfy HM, Saleh SS, Hassan NY, Salem H. Novel two wavelength spectrophotometric methods for simultaneous determination of binary mixtures with severely overlapping spectra. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt C:1786-1796. [PMID: 25467671 DOI: 10.1016/j.saa.2014.10.084] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/17/2014] [Accepted: 10/22/2014] [Indexed: 06/04/2023]
Abstract
This work presents the application of different spectrophotometric techniques based on two wavelengths for the determination of severely overlapped spectral components in a binary mixture without prior separation. Four novel spectrophotometric methods were developed namely: induced dual wavelength method (IDW), dual wavelength resolution technique (DWRT), advanced amplitude modulation method (AAM) and induced amplitude modulation method (IAM). The results of the novel methods were compared to that of three well-established methods which were: dual wavelength method (DW), Vierordt's method (VD) and bivariate method (BV). The developed methods were applied for the analysis of the binary mixture of hydrocortisone acetate (HCA) and fusidic acid (FSA) formulated as topical cream accompanied by the determination of methyl paraben and propyl paraben present as preservatives. The specificity of the novel methods was investigated by analyzing laboratory prepared mixtures and the combined dosage form. The methods were validated as per ICH guidelines where accuracy, repeatability, inter-day precision and robustness were found to be within the acceptable limits. The results obtained from the proposed methods were statistically compared with official ones where no significant difference was observed. No difference was observed between the obtained results when compared to the reported HPLC method, which proved that the developed methods could be alternative to HPLC techniques in quality control laboratories.
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Affiliation(s)
- Hayam M Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, 11562 Cairo, Egypt
| | - Sarah S Saleh
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6[th] October City, Egypt.
| | - Nagiba Y Hassan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, 11562 Cairo, Egypt
| | - Hesham Salem
- Analytical Chemistry Department, Faculty of Pharmacy, Deraya University, Minia, Egypt
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Lee DH, Kim DY, Yoon SY, Park HS, Yoon HS, Cho S. Retrospective Clinical Trial of Fusidic Acid versus Petrolatum in the Postprocedure Care of Clean Dermatologic Procedures. Ann Dermatol 2015; 27:15-20. [PMID: 25673926 PMCID: PMC4323597 DOI: 10.5021/ad.2015.27.1.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/06/2014] [Accepted: 03/27/2014] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Clean dermatologic procedures create wounds with a low risk of infection (usually up to 5%). Whether the use of topical antibiotics is advocated, with regard to its efficacy and safety issues such as antibiotic resistance and sensitizing potential, is controversial. Fusidic acid, a topical antibiotic against gram-positive bacteria, is a rare sensitizer and commonly used in postprocedure care in Korea. OBJECTIVE This is a retrospective study aimed at comparing the efficacy and safety between fusidic acid and petrolatum for the postprocedure care of clean dermatologic procedures. METHODS Patients were treated with either fusidic acid or petrolatum ointment, applied on the wound created during clean dermatologic procedures such as biopsy of the punch, incisional, excisional, and shave types. The efficacy, adverse events, and subjective level of satisfaction were retrieved from medical records. RESULTS A total of 414 patients with a total of 429 wounds were enrolled. The overall rate of adverse events was 0.9%, and the rates of adverse events in the fusidic acid group and the petrolatum group were 1.4% and 0.5%, respectively (p=0.370). There was no wound discharge, pain, tenderness, swelling, induration, or dehiscence in both groups. The patients' self-assessment of the wound was not significantly different between the two treatment groups. CONCLUSION Our findings support the hypothesis that the routine prophylactic use of topical antibiotics is not indicated for clean dermatologic procedures. We recommend the use of petrolatum in the postoperative care of clean dermatologic procedures because of its equivalent efficacy and superior safety profiles.
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Affiliation(s)
- Dong Hun Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Dong Young Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - So Young Yoon
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Hyun Sun Park
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea. ; Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Hyun-Sun Yoon
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea. ; Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Soyun Cho
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. ; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea. ; Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea
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Kigondu EM, Wasuna A, Warner DF, Chibale K. Pharmacologically active metabolites, combination screening and target identification-driven drug repositioning in antituberculosis drug discovery. Bioorg Med Chem 2014; 22:4453-61. [PMID: 24997576 DOI: 10.1016/j.bmc.2014.06.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/04/2014] [Accepted: 06/06/2014] [Indexed: 01/14/2023]
Abstract
There has been renewed interest in alternative strategies to address bottlenecks in antibiotic development. These include the repurposing of approved drugs for use as novel anti-infective agents, or their exploitation as leads in drug repositioning. Such approaches are especially attractive for tuberculosis (TB), a disease which remains a leading cause of morbidity and mortality globally and, increasingly, is associated with the emergence of drug-resistance. In this review article, we introduce a refinement of traditional drug repositioning and repurposing strategies involving the development of drugs that are based on the active metabolite(s) of parental compounds with demonstrated efficacy. In addition, we describe an approach to repositioning the natural product antibiotic, fusidic acid, for use against Mycobacterium tuberculosis. Finally, we consider the potential to exploit the chemical matter arising from these activities in combination screens and permeation assays which are designed to confirm mechanism of action (MoA), elucidate potential synergies in polypharmacy, and to develop rules for drug permeability in an organism that poses a special challenge to new drug development.
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Affiliation(s)
- Elizabeth M Kigondu
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Antonina Wasuna
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Digby F Warner
- Institute of Infectious Disease & Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa; MRC/NHLS/UCT Molecular Mycobacteriology Research Unit and DST/NRF Centre of Excellence for Biomedical Tuberculosis Research, Department of Clinical Laboratory Sciences, Faculty of Health Sciences, University of Cape Town, Rondebosch 7701, South Africa.
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa; Institute of Infectious Disease & Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa.
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Gupta A, Mir SS, Saqib U, Biswas S, Vaishya S, Srivastava K, Siddiqi MI, Habib S. The effect of fusidic acid on Plasmodium falciparum elongation factor G (EF-G). Mol Biochem Parasitol 2013; 192:39-48. [PMID: 24211494 DOI: 10.1016/j.molbiopara.2013.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/29/2013] [Accepted: 10/29/2013] [Indexed: 11/30/2022]
Abstract
Inhibition of growth of the malaria parasite Plasmodium falciparum by known translation-inhibitory antibiotics has generated interest in understanding their action on the translation apparatus of the two genome containing organelles of the malaria parasite: the mitochondrion and the relic plastid (apicoplast). We report GTPase activity of recombinant EF-G proteins that are targeted to the organelles and further use these to test the effect of the EF-G inhibitor fusidic acid (FA) on the factor-ribosome interface. Our results monitoring locking of EF-G·GDP onto surrogate Escherichia coli ribosomes as well as multi-turnover GTP hydrolysis by the factor indicate that FA has a greater effect on apicoplast EF-G compared to the mitochondrial counterpart. Deletion of a three amino acid (GVG) sequence in the switch I loop that is conserved in proteins of the mitochondrial EF-G1 family and the Plasmodium mitochondrial factor, but is absent in apicoplast EF-G, demonstrated that this motif contributes to differential inhibition of the two EF-Gs by FA. Additionally, the drug thiostrepton, that is known to target the apicoplast and proteasome, enhanced retention of only mitochondrial EF-G on ribosomes providing support for the reported effect of the drug on parasite mitochondrial translation.
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Affiliation(s)
- Ankit Gupta
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Snober S Mir
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Uzma Saqib
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Subir Biswas
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Suniti Vaishya
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Kumkum Srivastava
- Division of Parasitology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Mohammad Imran Siddiqi
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Saman Habib
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, India.
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Molina-Cabrillana J, Del Rosario-Quintana C, Tosco-Núñez T, Dorta-Hung E, Quori A, Martín-Sánchez AM. [Antibiotic ointments and methicillin-resistant Staphylococcus aureus with a reservoir in a healthcare worker in a tertiary hospital]. Enferm Infecc Microbiol Clin 2012; 31:511-5. [PMID: 23218870 DOI: 10.1016/j.eimc.2012.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/28/2012] [Accepted: 10/09/2012] [Indexed: 11/26/2022]
Abstract
BACKGROUND Methicillin-resistant Staphylococcus aureus (MRSA) has become an important hospital-acquired pathogen, with transfer of the organism from a carrier or infected patient to uninfected patients by the hands or clothing of staff as the main mode of transmission. METHODS Investigation of a cluster of new cases of MRSA resistant to mupirocin and fusidic acid, using epidemiological and microbiological resources. RESULTS From September 2010 to February 2012, sixteen patients had at least one culture positive for MRSA resistant to mupirocin and fusidic acid. Some not apparently related cases and outbreaks appeared. By analysing cultures taken from patients and staff using pulsed-field gel electrophoresis, it was demonstrated that most likely this situation was started by an auxiliary nurse who was a carrier of the MRSA. Healthcare worker decontamination using oral antibiotic therapy was unsuccessful. Eventually, the situation was controlled by placing the carrier in a different job, with no further cases to date (September, 2012). CONCLUSION This report illustrates the risk of nosocomial transmission linked to care delivered by healthcare workers.
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Affiliation(s)
- Jesús Molina-Cabrillana
- Servicio de Medicina Preventiva, Complejo Hospitalario Universitario Insular-Materno Infantil (CHUIMI), Las Palmas de Gran Canaria, España.
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