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Qiu Z, Huang R, Wu Y, Li X, Sun C, Ma Y. Decoding the Structural Diversity: A New Horizon in Antimicrobial Prospecting and Mechanistic Investigation. Microb Drug Resist 2024; 30:254-272. [PMID: 38648550 DOI: 10.1089/mdr.2023.0232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024] Open
Abstract
The escalating crisis of antimicrobial resistance (AMR) underscores the urgent need for novel antimicrobials. One promising strategy is the exploration of structural diversity, as diverse structures can lead to diverse biological activities and mechanisms of action. This review delves into the role of structural diversity in antimicrobial discovery, highlighting its influence on factors such as target selectivity, binding affinity, pharmacokinetic properties, and the ability to overcome resistance mechanisms. We discuss various approaches for exploring structural diversity, including combinatorial chemistry, diversity-oriented synthesis, and natural product screening, and provide an overview of the common mechanisms of action of antimicrobials. We also describe techniques for investigating these mechanisms, such as genomics, proteomics, and structural biology. Despite significant progress, several challenges remain, including the synthesis of diverse compound libraries, the identification of active compounds, the elucidation of complex mechanisms of action, the emergence of AMR, and the translation of laboratory discoveries to clinical applications. However, emerging trends and technologies, such as artificial intelligence, high-throughput screening, next-generation sequencing, and open-source drug discovery, offer new avenues to overcome these challenges. Looking ahead, we envisage an exciting future for structural diversity-oriented antimicrobial discovery, with opportunities for expanding the chemical space, harnessing the power of nature, deepening our understanding of mechanisms of action, and moving toward personalized medicine and collaborative drug discovery. As we face the continued challenge of AMR, the exploration of structural diversity will be crucial in our search for new and effective antimicrobials.
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Affiliation(s)
- Ziying Qiu
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Rongkun Huang
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Yuxuan Wu
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Xinghao Li
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Chunyu Sun
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Yunqi Ma
- School of Pharmacy, Binzhou Medical University, Yantai, China
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Yu L, Zhang B, Wan H. Nab-Paclitaxel for Relapsed AIDS-Related Kaposi Sarcoma -A Case Report. Infect Drug Resist 2024; 17:1431-1437. [PMID: 38623529 PMCID: PMC11017983 DOI: 10.2147/idr.s456286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/23/2024] [Indexed: 04/17/2024] Open
Abstract
Introduction Kaposi sarcoma (KS) incidence has decreased since the initiation of combination antiretroviral therapy (cART), but it remains the most common cancer in people with HIV/AIDS (PWHA). PWHA with advanced immunosuppression who initiate antiretroviral therapy are susceptible to the occurrence of an immune reconstitution inflammatory syndrome (IRIS). Case Presentation This report covers the case of a 25-year-old male with AIDS-related KS who relapsed after Liposomal Doxorubicin, but recovered well after administration of nab-paclitaxel (Nab-PTX). Conclusion This is a rare case in choosing Nab-PTX to treat relapsed AIDS-KS and get good feedback. We report the case to provide a possible solution to treat AIDS-KS.
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Affiliation(s)
- Lele Yu
- Department II of Infectious Diseases, Hangzhou Xixi Hospital, Hangzhou Sixth People’s Hospital, Hangzhou, Zhejiang, 310023, People’s Republic of China
| | - Binhai Zhang
- Department II of Infectious Diseases, Hangzhou Xixi Hospital, Hangzhou Sixth People’s Hospital, Hangzhou, Zhejiang, 310023, People’s Republic of China
| | - Hu Wan
- Department II of Infectious Diseases, Hangzhou Xixi Hospital, Hangzhou Sixth People’s Hospital, Hangzhou, Zhejiang, 310023, People’s Republic of China
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Sonowal S, Gogoi U, Buragohain K, Nath R. Endophytic fungi as a potential source of anti-cancer drug. Arch Microbiol 2024; 206:122. [PMID: 38407579 DOI: 10.1007/s00203-024-03829-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/24/2023] [Accepted: 01/01/2024] [Indexed: 02/27/2024]
Abstract
Endophytes are considered one of the major sources of bioactive compounds used in different aspects of health care including cancer treatment. When colonized, they either synthesize these bioactive compounds as a part of their secondary metabolite production or augment the host plant machinery in synthesising such bioactive compounds. Hence, the study of endophytes has drawn the attention of the scientific community in the last few decades. Among the endophytes, endophytic fungi constitute a major portion of endophytic microbiota. This review deals with a plethora of anti-cancer compounds derived from endophytic fungi, highlighting alkaloids, lignans, terpenes, polyketides, polyphenols, quinones, xanthenes, tetralones, peptides, and spirobisnaphthalenes. Further, this review emphasizes modern methodologies, particularly omics-based techniques, asymmetric dihydroxylation, and biotic elicitors, showcasing the dynamic and evolving landscape of research in this field and describing the potential of endophytic fungi as a source of anticancer drugs in the future.
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Affiliation(s)
- Sukanya Sonowal
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Urvashee Gogoi
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Kabyashree Buragohain
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Ratul Nath
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India.
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India.
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Chen XX, Li C, Selvaraj KK, Ji QS, Fang ZH, Yang SG, Li SY, Zhang LM, He H. Correlation analysis between the in vivo bioavailability and in vitro bioaccessibility of nitro PAHs in soil: Application of simplified FOREhST in vitro methods based on the Chinese pharmacopoeia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168722. [PMID: 38008317 DOI: 10.1016/j.scitotenv.2023.168722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/13/2023] [Accepted: 11/18/2023] [Indexed: 11/28/2023]
Abstract
In this study, the relative bioavailability (RBA) of nitrated polycyclic aromatic hydrocarbons (NPAHs) in soil samples (n = 30) was assessed using an in vivo mouse model. Based on the correlation between the bioaccessibility data obtained from the Tenax improved traditional Fed ORganic Estimation human Simulation Test (FOREhST) in vitro method (TITF) and the bioavailability data obtained from in vivo experiments, the TITF method was further optimized and simplified by referring to the "Pharmacopoeia of the People's Republic of China: Volume IV, 2020" to adjust the formulation and parameters of the gastrointestinal fluid (GIF) in order to establish a simpler and lower cost in vitro method for the determination of the bioaccessibilities of NPAHs. The dose-accumulation relationship of the in vivo experiment showed that the linear dose-response was better in adipose tissue (R2 = 0.77-0.93), and the accumulation of NPAHs in adipose tissue was higher than that in kidney or liver tissue. Depending on the mouse adipose model, the NPAHs-RBA ranged from 1.88 % to 73.92 %, and a strongly significant negative relationship (R2 = 0.94, p < 0.05) was found between the NPAHs-RBA and Log Kow. The simplified experiment of the TITF showed that the composition of the GIF medium had a significant effect on the bioaccessibilities of NPAHs. The NPAH bioaccessibilities measured by the Tenax improved simplified FOREhST method (TISF) (9.0-36.5 %) were higher than that of the traditional FOREhST method (6.8-22.8 %) but significantly lower than that of the TITF method (16.8-55.2 %). With an increase in the bile concentration in the GIF (from 6 to 10 g/L), the bioaccessibilities of NPAHs increased from 9.0 to 36.5 % to 12.9-42.4 %. The accuracies of the four in vitro methods for predicting the bioavailabilities of NPAHs was in the following order: Tenax improved simplified FOREhST method with increased bile concentration (TITF-IB) (R2 = 0.54-0.87) ≈ TITF (R2 = 0.55-0.85) > TISF (R2 = 0.41-0.77) > FOREhST (R2 = 0.02-0.68). These results indicated that the simple in vitro method could also effectively predict the bioavailabilities of NPAHs.
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Affiliation(s)
- Xian-Xian Chen
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China; School of Geography, Nanjing Normal University, Nanjing 210023, China
| | - Chao Li
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Krishna Kumar Selvaraj
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Qing-Song Ji
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Zhi-Hong Fang
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Shao-Gui Yang
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Shi-Yin Li
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China
| | - Li-Min Zhang
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China; Green Economy Development Institute, Nanjing University of Finance and Economics, Nanjing 210023, China
| | - Huan He
- School of Environment, Nanjing Normal University, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing 210023, China; College of Ecological and Resource Engineering, Fujian Provincial Key laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan 354300, China.
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Patrón LA, Yeoman H, Wilson S, Tang N, Berens ME, Gokhale V, Suzuki TC. Novel Brain-Penetrant, Small-Molecule Tubulin Destabilizers for the Treatment of Glioblastoma. Biomedicines 2024; 12:406. [PMID: 38398008 PMCID: PMC10887108 DOI: 10.3390/biomedicines12020406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Glioblastoma (GB) is the most lethal brain cancer in adults, with a 5-year survival rate of 5%. The standard of care for GB includes maximally safe surgical resection, radiation, and temozolomide (TMZ) therapy, but tumor recurrence is inevitable in most GB patients. Here, we describe the development of a blood-brain barrier (BBB)-penetrant tubulin destabilizer, RGN3067, for the treatment of GB. RGN3067 shows good oral bioavailability and achieves high concentrations in rodent brains after oral dosing (Cmax of 7807 ng/mL (20 μM), Tmax at 2 h). RGN3067 binds the colchicine binding site of tubulin and inhibits tubulin polymerization. The compound also suppresses the proliferation of the GB cell lines U87 and LN-18, with IC50s of 117 and 560 nM, respectively. In four patient-derived GB cell lines, the IC50 values for RGN3067 range from 148 to 616 nM. Finally, in a patient-derived xenograft (PDX) mouse model, RGN3067 reduces the rate of tumor growth compared to the control. Collectively, we show that RGN3067 is a BBB-penetrant small molecule that shows in vitro and in vivo efficacy and that its design addresses many of the physicochemical properties that prevent the use of microtubule destabilizers as treatments for GB and other brain cancers.
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Affiliation(s)
- Lilian A. Patrón
- Reglagene, Inc., Tucson, AZ 85719, USA; (L.A.P.); (H.Y.); (V.G.)
| | - Helen Yeoman
- Reglagene, Inc., Tucson, AZ 85719, USA; (L.A.P.); (H.Y.); (V.G.)
| | - Sydney Wilson
- Reglagene, Inc., Tucson, AZ 85719, USA; (L.A.P.); (H.Y.); (V.G.)
| | - Nanyun Tang
- Translational Genomics Research Institute (TGen), Phoenix, AZ 85004, USA; (N.T.); (M.E.B.)
| | - Michael E. Berens
- Translational Genomics Research Institute (TGen), Phoenix, AZ 85004, USA; (N.T.); (M.E.B.)
| | - Vijay Gokhale
- Reglagene, Inc., Tucson, AZ 85719, USA; (L.A.P.); (H.Y.); (V.G.)
| | - Teri C. Suzuki
- Reglagene, Inc., Tucson, AZ 85719, USA; (L.A.P.); (H.Y.); (V.G.)
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Hu S, Li Y, Zhou J, Xu K, Pang Y, Weiskirchen R, Ocker M, Ouyang F. Identification of acetylshikonin as a novel tubulin polymerization inhibitor with antitumor activity in human hepatocellular carcinoma cells. J Gastrointest Oncol 2023; 14:2574-2586. [PMID: 38196542 PMCID: PMC10772698 DOI: 10.21037/jgo-23-842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024] Open
Abstract
Background Microtubules are attractive targets for anticancer drugs. However, the microtubule-targeting agents (MTAs) currently in clinical use exhibit inevitable drug resistance. Therefore, there is an urgent need to discover novel MTAs for the clinical treatment of cancer. Methods Bioactive compounds extracted from Lithospermum erythrorhizon were assessed for in vitro anti-proliferative activities against a panel of human cancer cell lines using cell counting kit-8 (CCK-8) assay. Tubulin polymerization inhibition assay, colchicine competitive binding site assay, and immunofluorescence were used to validate the tubulin inhibition effect of acetylshikonin. Flow cytometry, Hoechst staining, and caspase-3 activity evaluation were performed to assess cell cycle arrest and cell apoptosis. 5,5',6,6'-tetrachloro-1,1',3,3'-tetramethylbenzimidazolylcarbocyanine iodide (JC-1) staining and dichloro-dihydro-fluorescein diacetate (DCFH-DA) staining were used to evaluate mitochondrial membrane potential (MMP) and reactive oxygen species (ROS), respectively. Results Acetylshikonin exhibited potent anti-proliferative activities against a panel of human cancer cell lines (IC50 values: 1.09-7.26 µM) and displayed comparable cytotoxicity against several drug-resistant cell lines. Further mechanism studies revealed that acetylshikonin induced cell cycle arrest of MHCC-97H cells at G2/M phase, and significantly promoted apoptosis marked by a collapse of MMP and abnormal ROS accumulation. Conclusions In this study, acetylshikonin was identified as MTA against hepatocellular carcinoma and can serve as a promising lead compound for further development of anti-cancer drug, underscoring its potential clinical significance.
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Affiliation(s)
- Siming Hu
- Department of Laboratory Medicine, Nanfang Hospital Taihe Branch, Guangzhou, China
| | - Yongchuan Li
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Junqiu Zhou
- Department of Laboratory Medicine, Nanfang Hospital Baiyun Branch, Southern Medical University, Guangzhou, China
| | - Kun Xu
- Department of Laboratory Medicine, Nanfang Hospital Baiyun Branch, Southern Medical University, Guangzhou, China
| | - Yanqing Pang
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy, and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, Aachen, Germany
| | - Matthias Ocker
- Medical Department, Division of Hematology, Oncology, and Cancer Immunology Campus Charité Mitte, Charité University Medicine Berlin, Berlin, Germany
| | - Fen Ouyang
- Department of Laboratory Medicine, Nanfang Hospital Baiyun Branch, Southern Medical University, Guangzhou, China
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7
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Li C, Qi Y, Sun Z, Jiang M, Li C. Way to efficient microbial paclitaxel mass production. Synth Syst Biotechnol 2023; 8:673-681. [PMID: 37954482 PMCID: PMC10632112 DOI: 10.1016/j.synbio.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
The microbial synthesis of paclitaxel is attractive for its short-cycle, cost-effectiveness, and sustainability. However, low paclitaxel productivity, depleted capacity during subculture and storage, and unclear biosynthesis mechanisms restrain industrial microbial synthesis. Along with the isolation of various paclitaxel-producing microorganisms and the development of versatile molecular tools, tremendous promises for microbial paclitaxel synthesis have become increasingly prominent. In this review, we summarize the progress of microbial synthesis of paclitaxel in recent years, focusing on paclitaxel-producing endophytes and representative engineering microorganism hosts that were used as chassis for paclitaxel precursor synthesis. Numerous wide-type microbes can manufacture paclitaxel, and fermentation process optimization and strain improvement can greatly enhance the productivity. Engineered microbes can efficiently synthesize precursors of paclitaxel by introducing exogenous synthetic pathway. Mining paclitaxel synthetic pathways and genetic manipulation of endophytes will accelerate the construction of microbial cell factories, indefinitely contributing to paclitaxel mass production by microbes. This review emphasizes the potential and provides solutions for efficient microbial paclitaxel mass production.
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Affiliation(s)
- Chenyue Li
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Yanli Qi
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Zhongke Sun
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
- Nanyang Institute of Medical Plant Technology and Industry, Nanyang, 473005, China
| | - Mengwan Jiang
- School of Artificial Intelligence and Big Data, Henan University of Technology, Zhengzhou, 450001, China
| | - Chengwei Li
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
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Wu X, Ma Y, Wang L, Qin X. A Route for Investigating Psoriasis: From the Perspective of the Pathological Mechanisms and Therapeutic Strategies of Cancer. Int J Mol Sci 2023; 24:14390. [PMID: 37762693 PMCID: PMC10532365 DOI: 10.3390/ijms241814390] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
Psoriasis is an incurable skin disease that develops in about two-thirds of patients before the age of 40 and requires lifelong treatment; its pathological mechanisms have not been fully elucidated. The core pathological process of psoriasis is epidermal thickening caused by the excessive proliferation of epidermal keratinocytes, which is similar to the key feature of cancer; the malignant proliferation of cancer cells causes tumor enlargement, suggesting that there is a certain degree of commonality between psoriasis and cancer. This article reviews the pathological mechanisms that are common to psoriasis and cancer, including the interaction between cell proliferation and an abnormal immune microenvironment, metabolic reprogramming, and epigenetic reprogramming. In addition, there are common therapeutic agents and drug targets between psoriasis and cancer. Thus, psoriasis and cancer share a common pathological mechanisms-drug targets-therapeutic agents framework. On this basis, it is proposed that investigating psoriasis from a cancer perspective is beneficial to enriching the research strategies related to psoriasis.
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Affiliation(s)
- Xingkang Wu
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan 030006, China; (Y.M.); (L.W.)
| | | | | | - Xuemei Qin
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan 030006, China; (Y.M.); (L.W.)
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Szwed M, Michlewska S, Kania K, Szczęch M, Marczak A, Szczepanowicz K. New SDS-Based Polyelectrolyte Multicore Nanocarriers for Paclitaxel Delivery-Synthesis, Characterization, and Activity against Breast Cancer Cells. Cells 2023; 12:2052. [PMID: 37626862 PMCID: PMC10453607 DOI: 10.3390/cells12162052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/15/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
The low distribution of hydrophobic anticancer drugs in patients is one of the biggest limitations during conventional chemotherapy. SDS-based polyelectrolyte multicore nanocarriers (NCs) prepared according to the layer by layer (LbL) procedure can release paclitaxel (PTX), and selectively kill cancer cells. Our main objective was to verify the antitumor properties of PTX-loaded NCs and to examine whether the drug encapsulated in these NCs retained its cytotoxic properties. The cytotoxicity of the prepared nanosystems was tested on MCF-7 and MDA-MB-231 tumour cells and the non-cancerous HMEC-1 cell line in vitro. Confocal microscopy, spectrophotometry, spectrofluorimetry, flow cytometry, and RT PCR techniques were used to define the typical hallmarks of apoptosis. It was demonstrated that PTX encapsulated in the tested NCs exhibited similar cytotoxicity to the free drug, especially in the triple negative breast cancer model. Moreover, SDS/PLL/PTX and SDS/PLL/PGA/PTX significantly reduced DNA synthesis. In addition, PTX-loaded NCs triggered apoptosis and upregulated the transcription of Bax, AIF, cytochrome-c, and caspase-3 mRNA. Our data demonstrate that these novel polyelectrolyte multicore NCs coated with PLL or PLL/PGA are good candidates for delivering PTX. Our discoveries have prominent implications for the possible choice of newly synthesized, SDS-based polyelectrolyte multicore NCs in different anticancer therapeutic applications.
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Affiliation(s)
- Marzena Szwed
- Department of Medical Biophysics, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St, 90-236 Lodz, Poland;
| | - Sylwia Michlewska
- Laboratory of Microscopic Imaging and Specialized Biological Techniques, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16 St, 90-237 Lodz, Poland;
| | - Katarzyna Kania
- Laboratory of Virology, Institute for Medical Biology, Polish Academy of Sciences, Lodowa 106 St, 93-232 Lodz, Poland;
| | - Marta Szczęch
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8 St, 30-239 Kraków, Poland; (M.S.); (K.S.)
| | - Agnieszka Marczak
- Department of Medical Biophysics, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St, 90-236 Lodz, Poland;
| | - Krzysztof Szczepanowicz
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8 St, 30-239 Kraków, Poland; (M.S.); (K.S.)
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10
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Vergoten G, Bailly C. Molecular Docking of Cryptoconcatones to α-Tubulin and Related Pironetin Analogues. PLANTS (BASEL, SWITZERLAND) 2023; 12:296. [PMID: 36679009 PMCID: PMC9860703 DOI: 10.3390/plants12020296] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Cryptoconcatones A-L represent a series of 12 dihydropyrone derivatives isolated from the evergreen tree Cryptocarya concinna Hance, which is well distributed in southeast Asia. The lead compound in the series, cryptoconcatone L, has revealed antiproliferative activity against cultured cancer cells but its mechanism of action remains unknown. Based on a structural analogy with the anticancer natural product pironetin, which is well known for binding covalently to α-tubulin and for functioning as a microtubule polymerization inhibitor, we investigated the interaction of cryptoconcatones with tubulin dimers using molecular docking. The α-tubulin binding capacity of each compound was quantified (through calculation of the empirical energy of interaction ΔE) and structure-binding relationships were delineated. Two compounds were found to interact with α-tubulin much more potently than pironetin: cryptoconcatones F and L. In both cases, the facile formation of a covalent bond with Cys316 was evidenced, as observed with the parent compound pironetin. A few other pironetin analogues were investigated, including spicigerolide, which is an analogue of another known α-tubulin binder. Altogether, this study points to the identification of a series of 5,6-dihydro-α-pyrones as α-tubulin-binding agents. The study contributes to a better understanding of the mechanism of action of cryptoconcatones and should help the design of analogues targeting the pironetin site of α-tubulin.
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Affiliation(s)
- Gérard Vergoten
- Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), Faculté de Pharmacie, University of Lille, 3 rue du Professeur Laguesse, BP-83, F-59006 Lille, France
| | - Christian Bailly
- Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), Faculté de Pharmacie, University of Lille, 3 rue du Professeur Laguesse, BP-83, F-59006 Lille, France
- OncoWitan, Consulting Scientific Office, Wasquehal, F-59290 Lille, France
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Stepanova DA, Pigareva VA, Berkovich AK, Bolshakova AV, Spiridonov VV, Grozdova ID, Sybachin AV. Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles. Polymers (Basel) 2022; 14:4013. [PMID: 36235958 PMCID: PMC9571646 DOI: 10.3390/polym14194013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/19/2022] Open
Abstract
A facile technique for the preparation of mixed polylactide micelles from amorphous poly-D,L-lactide-block-polyethyleneglycol and crystalline amino-terminated poly-L-lactide is described. In comparison to the classical routine solvent substitution method, the ultrasonication assisted formation of polymer micelles allows shortening of the preparation time from several days to 15-20 min. The structure and morphology of mixed micelles were analyzed with the assistance of electron microscopy, dynamic and static light scattering and differential scanning calorimetery. The resulting polymer micelles have a hydrodynamic radius of about 150 nm and a narrow size distribution. The average molecular weight of micelles was found to be 2.1 × 107 and the aggregation number was calculated to be 6000. The obtained biocompatible particles were shown to possess low cytotoxicity, high colloid stability and high stability towards enzymatic hydrolysis. The possible application of mixed polylactide micelles as drug delivery vehicles was studied for the antitumor hydrophobic drug paclitaxel. The lethal concentration (LC50) of paclitaxel encapsulated in polylactide micelles was found to be 42 ± 4 µg/mL-a value equal to the LC50 of paclitaxel in the commercial drug Paclitaxel-Teva.
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Affiliation(s)
- Darya A. Stepanova
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladislava A. Pigareva
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Anna K. Berkovich
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Anastasia V. Bolshakova
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia
| | - Vasiliy V. Spiridonov
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Irina D. Grozdova
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Andrey V. Sybachin
- Leninskie Gory, 1-3, Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
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