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Ong HTM, Ates E, Kwon OS, Kang MJ. Screening of Natural Compounds for CYP11A1 Stimulation Against Cell Renal Cell Carcinoma. Biol Proced Online 2023; 25:31. [PMID: 38036976 PMCID: PMC10687993 DOI: 10.1186/s12575-023-00225-y] [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: 07/05/2023] [Accepted: 11/09/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Renal cancer therapies are challenging owing to the extensive spreading of this cancer to other organs and its ability to pose resistance to current medications. Therefore, drugs targeting novel targets are urgently required to overcome these challenges. The cholesterol side-chain cleavage enzyme (CYP11A1) is closely associated with steroidogenesis, and its downregulation is linked to adrenal dysfunction and several types of carcinoma. We previously found that overexpression of CYP11A1 inhibited epithelial-mesenchymal transition and induced G2/M arrest in the kidney cancer Caki-1 cell line. In this context, natural compounds that exhibit potent CYP11A1 stimulation activity can be promising therpaeutic agents for kidney cancer. METHODS We screened a panel of 1374 natural compounds in a wound-healing assay using CYP11A1-transfected Caki-1 cells. Of these, 167 promising biologically active compounds that inhibited cancer cell migration by more than 75% were selected, and their half-maximal inhibitory concentrations (IC50) were determined. The IC50 of 159 compounds was determined and 38 compounds with IC50 values less than 50 µM were selected for further analysis. Steroid hormones (cholesterol and pregnenolone) levels in cells treated with the selected compounds were quantitated using LC-MS/MS to determine their effect on CYP11A1 activity. Western blotting for CYP11A1, autophagy signaling proteins, and ferroptosis regulators were performed to ivestigate the mechanisms underlying the action of the selected compounds. RESULTS We screened five promising natural lead compounds that inhibited cancer cell proliferation after three screening steps. The IC50 of these compounds was determined to be between 5.9 and 14.6 μM. These candidate compounds increased the expression of CYP11A1 and suppressed cholesterol levels while increasing pregnenolone levels, which is consistent with the activation of CYP11A1. Our results showed that CYP11A1 activation inhibited the migration of cancer cells, promoted ferroptosis, and triggered autophagy signaling. CONCLUSIONS This study indicates that the CYP11A1-overexpressing Caki-1 cell line is useful for screening drugs against kidney cancer. The two selected compounds could be utilized as lead compounds for anticancer drug discovery, and specifically for the development of antirenal cancer medication.
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Affiliation(s)
- Hien Thi My Ong
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Eda Ates
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Oh-Seung Kwon
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul, 02792, Republic of Korea
- Doping Control Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Min-Jung Kang
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul, 02792, Republic of Korea.
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Huang Y, Tian W, Peng Z, Cheng Y, Wei M, Liu Z, Pang L, Cui J. Discovery and biological evaluation of pregnenolone selenocyanoamides with potential anticancer and antimicrobial activities. J Steroid Biochem Mol Biol 2023; 234:106388. [PMID: 37652364 DOI: 10.1016/j.jsbmb.2023.106388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/13/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
Starting with pregnenolone, a 20-carbonyl group was converted into an amino group through a series of chemical reactions. This amino group was further converted into selenocyanoalkylamide, leading to the synthesis of six pregnenolone selenocyanoalkylamide derivatives. These compounds were then screened for antitumor activity in vitro, yielding promising results. Compounds 4b-4f show higher inhibitory activity than the positive control abiraterone and 2-methoxyestradiol, with IC50 values lower than 10 μmol/L against breast, ovarian, and cervical cancer cell lines that closely related to human hormone expression levels. The Annexin V assay of compound 4f revealed that compounds inhibited tumor cell proliferation primarily through the induction of programmed apoptosis. The zebrafish test results indicated that compound 4d had significant inhibitory activity against MCF-7 cell xenografts in vivo. Moreover, the antibacterial test indicated that compounds 4a and 4d-4e had better inhibitory activity against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) than the positive controls vancomycin and ampicillin. These results suggest that these compounds may hold promise as novel antitumor agents or antimicrobial agents for further study.
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Affiliation(s)
- Yanmin Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Wenhao Tian
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Zining Peng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Yang Cheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Meizhen Wei
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China.
| | - Zhiping Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Liping Pang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Jianguo Cui
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China.
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Gomes AR, Pires AS, Roleira FMF, Tavares-da-Silva EJ. The Structural Diversity and Biological Activity of Steroid Oximes. Molecules 2023; 28:molecules28041690. [PMID: 36838678 PMCID: PMC9967121 DOI: 10.3390/molecules28041690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Steroids and their derivatives have been the subject of extensive research among investigators due to their wide range of pharmacological properties, in which steroidal oximes are included. Oximes are a chemical group with the general formula R1R2C=N-OH and they exist as colorless crystals and are poorly soluble in water. Oximes can be easily obtained through the condensation of aldehydes or ketones with various amine derivatives, making them a very interesting chemical group in medicinal chemistry for the design of drugs as potential treatments for several diseases. In this review, we will focus on the different biological activities displayed by steroidal oximes such as anticancer, anti-inflammatory, antibacterial, antifungal and antiviral, among others, as well as their respective mechanisms of action. An overview of the chemistry of oximes will also be reported, and several steroidal oximes that are in clinical trials or already used as drugs are described. An extensive literature search was performed on three main databases-PubMed, Web of Science, and Google Scholar.
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Affiliation(s)
- Ana R. Gomes
- Univ Coimbra, CIEPQPF, Faculty of Pharmacy, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548 Coimbra, Portugal
- Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548 Coimbra, Portugal
| | - Ana S. Pires
- Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Praceta Professor Mota Pinto, 3004-561 Coimbra, Portugal
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), Rua Larga, 3004-504 Coimbra, Portugal
| | - Fernanda M. F. Roleira
- Univ Coimbra, CIEPQPF, Faculty of Pharmacy, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548 Coimbra, Portugal
- Correspondence: (F.M.F.R.); (E.J.T.-d.-S.); Tel.: +351-239-488-400 (F.M.F.R. & E.J.T.-d.-S.); Fax: +351-239-488-503 (F.M.F.R. & E.J.T.-d.-S.)
| | - Elisiário J. Tavares-da-Silva
- Univ Coimbra, CIEPQPF, Faculty of Pharmacy, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548 Coimbra, Portugal
- Correspondence: (F.M.F.R.); (E.J.T.-d.-S.); Tel.: +351-239-488-400 (F.M.F.R. & E.J.T.-d.-S.); Fax: +351-239-488-503 (F.M.F.R. & E.J.T.-d.-S.)
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Kolas V, Bandonil JSA, Wali N, Hsia KC, Shie JJ, Chung BC. A synthetic pregnenolone analog promotes microtubule dynamics and neural development. Cell Biosci 2022; 12:190. [PMID: 36456994 PMCID: PMC9717551 DOI: 10.1186/s13578-022-00923-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/03/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Pregnenolone (P5) is a neurosteroid that promotes microtubule polymerization. It also reduces stress and negative symptoms of schizophrenia, promotes memory, as well as recovery from spinal cord injury. P5 is the first substance in the steroid-synthetic pathway; it can be further metabolized into other steroids. Therefore, it is difficult to differentiate the roles of P5 versus its metabolites in the brain. To alleviate this problem, we synthesized and screened a series of non-metabolizable P5 derivatives for their ability to polymerize microtubules similar to P5. RESULTS We identified compound #43 (3-beta-pregnenolone acetate), which increased microtubule polymerization. We showed that compound #43 modified microtubule dynamics in live cells, increased neurite outgrowth and changed growth cone morphology in mouse cerebellar granule neuronal culture. Furthermore, compound #43 promoted the formation of stable microtubule tracks in zebrafish developing cerebellar axons. CONCLUSIONS We have developed compound #43, a nonmetabolized P5 analog, that recapitulates P5 functions in vivo and can be a new therapeutic candidate for the treatment of neurodevelopmental diseases.
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Affiliation(s)
- Viktoryia Kolas
- grid.28665.3f0000 0001 2287 1366Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan ,grid.38348.340000 0004 0532 0580Institute of Molecular and Cellular Biology, National Tsing-Hua University, Hsinchu, Taiwan
| | | | - Niaz Wali
- grid.28665.3f0000 0001 2287 1366Institute of Chemistry, Academia Sinica, Taipei, Taiwan ,grid.19188.390000 0004 0546 0241Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617 Taiwan ,grid.28665.3f0000 0001 2287 1366Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, (TIGP-CBMB) Academia Sinica, Taipei, 11529 Taiwan
| | - Kuo-Chiang Hsia
- grid.28665.3f0000 0001 2287 1366Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Jiun-Jie Shie
- grid.28665.3f0000 0001 2287 1366Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Bon-chu Chung
- grid.28665.3f0000 0001 2287 1366Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan ,grid.38348.340000 0004 0532 0580Institute of Molecular and Cellular Biology, National Tsing-Hua University, Hsinchu, Taiwan ,grid.254145.30000 0001 0083 6092Graduate Institute of Biomedical Sciences, Neuroscience and Brain Disease Center, China Medical University, Taichung, 404 Taiwan
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Kuru A, Yildirim K. Microbial conversion of pregnenolone by some filamentous fungi. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2150967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Ali Kuru
- Department of Chemistry, Faculty of Sciences, Sakarya University, Sakarya, Turkey
| | - Kudret Yildirim
- Department of Chemistry, Faculty of Sciences, Sakarya University, Sakarya, Turkey
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Novel 4-Azapregnene Derivatives as Potential Anticancer Agents: Synthesis, Antiproliferative Activity and Molecular Docking Studies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27186126. [PMID: 36144856 PMCID: PMC9501232 DOI: 10.3390/molecules27186126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/24/2022]
Abstract
A series of novel 21E-arylidene-4-azapregn-5-ene steroids has been successfully designed, synthesized and structurally characterized, and their antiproliferative activity was evaluated in four different cell lines. Within this group, the 21E-(pyridin-3-yl)methylidene derivative exhibited significant cytotoxic activity in hormone-dependent cells LNCaP (IC50 = 10.20 µM) and T47-D cells (IC50 = 1.33 µM). In PC-3 androgen-independent cells, the steroid 21E-p-nitrophenylidene-4-azapregn-5-ene was the most potent of this series (IC50 = 3.29 µM). Considering these results, the 21E-(pyridin-3-yl)methylidene derivative was chosen for further biological studies on T47-D and LNCaP cells, and it was shown that this azasteroid seems to lead T47-D cells to apoptotic death. Finally, molecular docking studies were performed to explore the affinity of these 4-azapregnene derivatives to several steroid targets, namely 5α-reductase type 2, estrogen receptor α, androgen receptor and CYP17A1. In general, compounds presented higher affinity to 5α-reductase type 2 and estrogen receptor α.
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Alyami BA, Ejaz I, Mahnashi MH, Alqahtani YS, Alqarni AO, Saeed Jan M, Sadiq A, Rashid U. Design, synthesis, antiproliferative activity, estrogen receptors binding affinity of C-3 pregnenolone-dihydropyrimidine derivatives for the treatment of breast cancer. Steroids 2022; 185:109059. [PMID: 35679910 DOI: 10.1016/j.steroids.2022.109059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/26/2022] [Accepted: 06/02/2022] [Indexed: 12/24/2022]
Abstract
Breast cancer (BCa) is very common malignancy and globally, has become the second leading cause of cancer death among women. For the treatment of BCa, estrogen receptors-alpha (ERα) has proven to be a therapeutic target. In continuation of our previous reported dihydropyrimidine-based pregnenolone derivatives, we modified at C-3 hydroxyl group. Structural architecture of estrogen receptors (ER) with excellent ER binding affinity was used for modification. MTT assay was used to evaluate the synthesized steroidal analogs for their antiproliferative activities against ER-positive MCF-7, ER-negative MDA-MB-231 (ER-) breast cancer cells and non-cancerous HEK-293 cells. Structure activity relationship (SAR) studies revealed that diethanolamine containing pregnenolone derivatives showed significant cytotoxicity against ER + MCF-7 and also showed good binding affinity with ERα and are relatively safe against HEK-293 cell model. Docking studies demonstrated that high binding affinity of diethanolamine analogs is due to their binding interaction with key amino acid residues present in the binding site of Erα.
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Affiliation(s)
- Bandar A Alyami
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Iqra Ejaz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, Pakistan
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Yahya S Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Ali O Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | | | - Abdul Sadiq
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara 18000 Dir (L), KP, Pakistan
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, Pakistan.
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Tserfas MO, Kuznetsov YV, Knyazev VV, Levina IS, Zavarzin IV. Key structures in the synthesis of steroid antitumor agents. Methods for upbuilding the 17β-pregnane side chain of 3-methoxy-19-norpregna-1,3,5(10)-trien-20-ones with and without an additional 16α,17α-carbocycle. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3593-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Çapan İ, Sert Y, Shehu A, Koca İ, Servi S. Synthesis, DFT study, molecular docking and drug-likeness analysis of the heteroaryl substituted new pregnenolone derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Çapan İ, Shehu A, Sert Y, Çelik İ, Erol M, Koca İ, Servi S. Synthesis, molecular docking, molecular dynamics and evaluation of Drug-Likeness properties of the fused N-Formyl pyrazoline substituted new dehydroepiandrosterone derivatives. J Biomol Struct Dyn 2022; 41:2492-2503. [PMID: 35132941 DOI: 10.1080/07391102.2022.2034667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The hybrid molecules bearing heterocyclic structures in the A or D rings of steroids have significant biological activity. 16 (E)-Hetereoarylidene steroids were synthesized from the reaction of different heteroaromatic carbaldehydes and trans-Dehydroepiandrosterone (DHEA) in a basic medium. Then, synthesis of the N-formyl pyrazoline substituted new DHEA derivatives were carried out from the reaction of hydrazine hydrate and 16 (E)-hetereoarylidene steroids. The structures of the synthesized compounds were elucidated by elemental analysis, FT-IR, 1H NMR, and 13C NMR spectroscopy. To investigate the activation pathway of synthesized N-formyl pyrazoline substituted steroid derivatives, a molecular docking study was performed on human cytochrome P450-(CYP17A1: PDB ID 5IRQ) with the help of the free AutoDock Vina. 100 ns molecular dynamic simulation process was performed to monitor the behavior of the complex structure formed by CYP17A1 and to calculate the stability over time of 2a and 2d (-9.8 kcal/mol), which gave the lowest value according to the results obtained in the molecular docking study with AutoDock Vina. Accordingly, RMSD, RMSF, Rg, and SASA analyzes of 2a and 2d were performed, and MMPBSA was calculated. Lastly, the ADMET (absorption, distribution, metabolism, excretion, and toxicity) analyses of the novel steroid derivatives were investigated.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- İrfan Çapan
- Department of Material and Material Processing Technologies, Technical Sciences Vocational College, Gazi University, Ankara, Turkey
| | - Abdulmalik Shehu
- Department of Chemistry, Faculty of Science, Federal University Dutse, Dutse, Jigawa, Nigeria
| | - Yusuf Sert
- Sorgun Vocational School, Yozgat Bozok University, Yozgat, Turkey
| | - İsmail Çelik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Meryem Erol
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - İrfan Koca
- Department of Chemistry, Faculty of Art & Sciences, Yozgat Bozok University, Yozgat, Turkey
| | - Süleyman Servi
- Department of Chemistry, Faculty of Science, Fırat University, Elazığ, Turkey
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Yadav P, Pandey SK, Shama P, Kumar S, Banerjee M, Sethi A. Experimental and theoretical investigation of synthesized pregnenolone derivatives via palladium catalyzed cross coupling reactions, their anticancer activity against lung cancer cells. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Cai X, Sha F, Zhao C, Zheng Z, Zhao S, Zhu Z, Zhu H, Chen J, Chen Y. Synthesis and anti-inflammatory activity of novel steroidal chalcones with 3β-pregnenolone ester derivatives in RAW 264.7 cells in vitro. Steroids 2021; 171:108830. [PMID: 33836205 DOI: 10.1016/j.steroids.2021.108830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/05/2021] [Accepted: 03/28/2021] [Indexed: 02/05/2023]
Abstract
To identify new potential anti-inflammatory agents, we herein report the synthesis of novel steroidal chalcones with 3β-pregnenolone esters of cinnamic acid derivatives using pregnenolone as the starting material. The structures of the newly synthesised compounds were confirmed by 1H NMR, 13C NMR, HRMS and infrared imaging. All the derivatives were examined to determine their in vitro anti-inflammatory profiles against LPS-induced inflammation in RAW 264.7 cells; the derivates were evaluated by the quantification of the pro-inflammatory mediator nitric oxide (NO) in the cell culture supernatant based on the Griess reaction, which measures nitrite levels, followed by an in vitro cytotoxicity study. Among these novel derivatives, compound 11e [3β-3-phenyl acrylate-pregn-5-en-17β-yl-3' -(p-fluoro)-phenylprop-2'-en-1'-one] was identified as the most potent anti-inflammatory agent, which showed significant anti-inflammatory activity by inhibiting the LPS-induced pro-inflammatory mediator NO in a dose-dependent manner without any cytotoxicity. Moreover, compound 11e markedly inhibited the expression of pro-inflammatory cytokines, including inducible nitric oxide synthase (iNOS), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α), and cyclooxygenase-2 (COX-2), in LPS-induced RAW 264.7 cells. Further studies confirmed that compound 11e significantly suppressed the transcriptional activity of NF-κB in activated RAW 264.7 cells. Molecular docking study revealed the strong binding affinity of compound 11e to the active site of the pro-inflammatory proteins, which confirmed that compound 11e acted as an anti-inflammatory mediator. These results indicated that steroidal chalcones with 3β-pregnenolone esters of cinnamic acid derivatives might be considered for further research in the design of anti-inflammatory drugs, and compound 11e might be a promising therapeutic anti-inflammatory drug candidate.
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Affiliation(s)
- Xiaorui Cai
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Fei Sha
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Chuanyi Zhao
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Zhiwei Zheng
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Shulin Zhao
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Zhiwei Zhu
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Huide Zhu
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Jiaoling Chen
- Department of Pharmacy, The Affiliated Tumor Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Yicun Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China.
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New Estrone Oxime Derivatives: Synthesis, Cytotoxic Evaluation and Docking Studies. Molecules 2021; 26:molecules26092687. [PMID: 34064380 PMCID: PMC8125528 DOI: 10.3390/molecules26092687] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/28/2021] [Accepted: 05/01/2021] [Indexed: 01/09/2023] Open
Abstract
The interest in the introduction of the oxime group in molecules aiming to improve their biological effects is increasing. This work aimed to develop new steroidal oximes of the estrane series with potential antitumor interest. For this, several oximes were synthesized by reaction of hydroxylamine with the 17-ketone of estrone derivatives. Then, their cytotoxicity was evaluated in six cell lines. An estrogenicity assay, a cell cycle distribution analysis and a fluorescence microscopy study with Hoechst 3358 staining were performed with the most promising compound. In addition, molecular docking studies against estrogen receptor α, steroid sulfatase, 17β-hydroxysteroid dehydrogenase type 1 and β-tubulin were also accomplished. The 2-nitroestrone oxime showed higher cytotoxicity than the parent compound on MCF-7 cancer cells. Furthermore, the oximes bearing halogen groups in A-ring evidenced selectivity for HepaRG cells. Remarkably, the Δ9,11-estrone oxime was the most cytotoxic and arrested LNCaP cells in the G2/M phase. Fluorescence microscopy studies showed the presence of condensed DNA typical of prophase and condensed and fragmented nuclei characteristic of apoptosis. However, this oxime promoted the proliferation of T47-D cells. Interestingly, molecular docking studies estimated a strong interaction between Δ9,11-estrone oxime and estrogen receptor α and β-tubulin, which may account for the described effects.
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Highlights on Steroidal Arylidene Derivatives as a Source of Pharmacologically Active Compounds: A Review. Molecules 2021; 26:molecules26072032. [PMID: 33918373 PMCID: PMC8038301 DOI: 10.3390/molecules26072032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 11/17/2022] Open
Abstract
Steroids constitute a unique class of chemical compounds, playing an important role in physiopathological processes, and have high pharmacological interest. Additionally, steroids have been associated with a relatively low toxicity and high bioavailability. Nowadays, multiple steroidal derivatives are clinically available for the treatment of numerous diseases. Moreover, different structural modifications on their skeleton have been explored, aiming to develop compounds with new and improved pharmacological properties. Thus, steroidal arylidene derivatives emerged as a relevant example of these modifications. This family of compounds has been mainly described as 17β-hydroxysteroid dehydrogenase type 1 and aromatase inhibitors, as well as neuroprotective and anticancer agents. Besides, due to their straightforward preparation and intrinsic chemical reactivity, steroidal arylidene derivatives are important synthetic intermediates for the preparation of other compounds, particularly bearing heterocyclic systems. In fact, starting from arylidenesteroids, it was possible to develop bioactive steroidal pyrazolines, pyrazoles, pyrimidines, pyridines, spiro-pyrrolidines, amongst others. Most of these products have also been studied as anti-inflammatory and anticancer agents, as well as 5α-reductase and aromatase inhibitors. This work aims to provide a comprehensive overview of steroidal arylidene derivatives described in the literature, highlighting their bioactivities and importance as synthetic intermediates for other pharmacologically active compounds.
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Bilal Tufail M, Aamir Javed M, Ikram M, Mahnashi MH, Alyami BA, Alqahtani YS, Sadiq A, Rashid U. Synthesis, pharmacological evaluation and Molecular modelling studies of pregnenolone derivatives as inhibitors of human dihydrofolate reductase. Steroids 2021; 168:108801. [PMID: 33549543 DOI: 10.1016/j.steroids.2021.108801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/03/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
In current study, we synthesized chalcone derivatives (13a-c) via base-catalyzed Claisen-Schmidt condensation reaction. We further treated diamino compounds with synthesized chalcones to produce 3,4-dihydropyrimidin-2(1H)-one (18a-c), 3,4-dihydropyrimidin-2(1H)-thione (19a-c) and 2-aminopyrimidine (20a-c) derivatives of pregnenolone by cyclization reaction. Cell viability test of synthesized steroidal chalcones and their pyrimidine and thiopyrimidine derivatives against human breast (MCF-7), human lung (A549) and human prostate (PC-3) cancer cell lines was performed using (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), assay. Compounds were further evaluated for their inhibition potential against recombinant human DHFR (rhDHFR). All compounds showed activity from low micromolar to submicromolar range. Compound 20b with IC50 value of 180 nM emerged as most potent compound against rhDHFR. Interaction of the newly synthesized pregnenolone derivatives with hDHFR and estrogen receptor alpha (ERα) were also explored via docking simulations. The overall results of hDHFR inhibition have shown that these analogues can be further optimized and developed as potent anticancer agents.
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Affiliation(s)
- Muhammad Bilal Tufail
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, KP, Pakistan
| | - Muhammad Aamir Javed
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, KP, Pakistan
| | - Muhammad Ikram
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, KP, Pakistan
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Bandar A Alyami
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Yahya S Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Abdul Sadiq
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan.
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, 22060 Abbottabad, KP, Pakistan.
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Nadaraia NS, Kakhabrishvili ML, Barbakadze NN, Mshvildadze VD, Mulkidzhanyan KG, Pichette A. Synthesis and Cytotoxic Activity of 5α-Pregnanolone Hydrazones. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03370-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Matiadis D, Sagnou M. Pyrazoline Hybrids as Promising Anticancer Agents: An Up-to-Date Overview. Int J Mol Sci 2020; 21:E5507. [PMID: 32752126 PMCID: PMC7432644 DOI: 10.3390/ijms21155507] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Pyrazolines are five-membered heterocycles possessing two adjacent nitrogens. They have attracted significant attention from organic and medicinal chemists due to their potent biological activities and the numerous possibilities for structural diversification. In the last decade, they have been intensively studied as targets for potential anticancer therapeutics, producing a steady yearly rise in the number of published research articles. Many pyrazoline derivatives have shown remarkable cytotoxic activities in the form of heterocyclic or non-heterocyclic based hybrids, such as with coumarins, triazoles, and steroids. The enormous amount of related literature in the last 5 years prompted us to collect all these published data from screening against cancer cell lines, or protein targets like EGFR and structure activity relationship studies. Therefore, in the present review, a comprehensive account of the compounds containing the pyrazoline nucleus will be provided. The chemical groups and the structural modifications responsible for the activity will be highlighted. Moreover, emphasis will be given on recent examples from the literature and on the work of research groups that have played a key role in the development of this field.
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Affiliation(s)
- Dimitris Matiadis
- National Center for Scientific Research “Demokritos”, Institute of Biosciences & Applications, 153 10 Athens, Greece;
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18
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Chou FP, Hsu WC, Huang SC, Chang CY, Chiou YS, Tsai CT, Lyu JW, Chen WT, Wu TK. Pregnenolonyl-α-glucoside exhibits marked anti-cancer and CYP17A1 enzymatic inhibitory activities. Chem Commun (Camb) 2020; 56:1733-1736. [PMID: 31938799 DOI: 10.1039/c9cc09415f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here that pregnenolonyl-α-glucoside (2), a steryl glycoside synthesized directly from pregnenolone and glucose via a consecutive multienzyme-catalyzed process, exhibits marked dose-dependent cytotoxic activity against HT29, AGS, and ES-2 cells with IC50 values of 23.5 to 50.9 μM. An in vitro CYP17A1 binding pattern assay and protein-ligand docking model support that 2, like abiraterone, binds in the active site heme iron pocket of CYP17A1.
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Affiliation(s)
- Feng-Pai Chou
- Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan, Republic of China.
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Zafar A, Singh S, Ahmad S, Khan S, Imran Siddiqi M, Naseem I. Interaction of C20-substituted derivative of pregnenolone acetate with copper (II) leads to ROS generation, DNA cleavage and apoptosis in cervical cancer cells: Therapeutic potential of copper chelation for cancer treatment. Bioorg Chem 2019; 87:276-290. [PMID: 30908970 DOI: 10.1016/j.bioorg.2019.03.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/26/2019] [Accepted: 03/14/2019] [Indexed: 11/27/2022]
Abstract
Cervical cancer is a leading cause of cancer-related deaths among women in developing countries. Therefore, development of new chemotherapeutic agents is required. Unlike normal cells, cancer cells contain elevated copper levels which play an integral role in angiogenesis. Thus, targeting copper via copper-specific chelators in cancer cells can serve as effective anticancer strategy. In this work, a copper chelator pregnenolone acetate nucleus-based tetrazole derivative (ligand-L) was synthesized and characterized by elemental analysis, ESI-MS, 1H NMR and 13C NMR. DNA binding ability of ligand-L was studied using UV-Vis and fluorescence spectroscopy. Fluorescence spectroscopy studies reveal that quenching constant of ligand-l-DNA and ligand-L-Cu(II) were found to be 7.4 × 103 M-1 and 8.8 × 103 M-1, respectively. In vitro toxicity of ligand-L was studied on human cervical cancer C33A cancer cells. Results showed that ligand-L exhibit significant cytotoxic activity against cervical cancer C33A cells with IC50 value 5.0 ± 1.8 µM. Further, it was found that ligand-L cytotoxicity is due to redox cycling of copper to generate ROS which leads to DNA damage and apoptosis. In conclusion, this is the report where we synthesized pregnenolone acetate-based tetrazole derivative against C33A cells that targets cellular copper to induce pro-oxidant death in cancer cells. These findings will provide significant insights into the development of new chemical molecules with better copper chelating and pro-oxidant properties against cancer cells.
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Affiliation(s)
- Atif Zafar
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Swarnendra Singh
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India
| | - Sabahuddin Ahmad
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India
| | - Saman Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Mohammad Imran Siddiqi
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India
| | - Imrana Naseem
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
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Scherbakov AM, Zavarzin IV, Vorontsova SK, Hajra A, Andreeva OE, Yadykov AV, Levina IS, Volkova YA, Shirinian VZ. Synthesis and evaluation of the antiproliferative activity of benzylidenes of 16-dehydroprogesterone series. Steroids 2018; 138:91-101. [PMID: 29997047 DOI: 10.1016/j.steroids.2018.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/11/2018] [Accepted: 06/19/2018] [Indexed: 12/13/2022]
Abstract
Novel benzylidenes (chalcones) of the 16-dehydroprogesterone series have been characterized and their antitumor activity against two breast cancer cell lines was evaluated. Benzylidenes exhibit significant antiproliferative effect on cells and inhibit cell growth in hormone-dependent MCF-7 and hormone-independent MDA-MB-231 breast cancer cell lines. Compound 3d exhibits the highest activity against two breast cancer cell lines, with the IC50 value of about 2 µM. Compounds 3e,m,n display considerable selectivity for hormone-dependent breast cancer cells, with the IC50 value lower than 6 µM. Moreover, these steroidal benzylidenes regulate ERα signaling and reveal p53-independent mechanism of pro-apoptotic action in MCF-7 cells. The new class of antitumor compounds holds promise as the basis for the design of agents for cancer therapy.
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Affiliation(s)
- Alexander M Scherbakov
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye shosse 24, 115478 Moscow, Russia.
| | - Igor V Zavarzin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Svetlana K Vorontsova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, India.
| | - Olga E Andreeva
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye shosse 24, 115478 Moscow, Russia.
| | - Anton V Yadykov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Inna S Levina
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Yulia A Volkova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Valerii Z Shirinian
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
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21
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Synthesis, spectroscopic analysis (FT-IR, UV and NMR) and DFT analysis of novel prodrugs of pregnane, their apoptotic activity in cervical cancer cell lines. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Chávez-Riveros A, Cruz Noriega A, Ramírez Apan MT, Miranda LD, Bratoeff E. Synthesis and cytotoxic effect of pregnenolone derivatives with one or two α,β-unsaturated carbonyls and an ester moiety at C-21 or C-3. Steroids 2018; 131:37-45. [PMID: 29360536 DOI: 10.1016/j.steroids.2018.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/29/2017] [Accepted: 01/16/2018] [Indexed: 12/16/2022]
Abstract
Four series of pregnenolone derivatives having one or two α,β-unsaturated carbonyls and an ester moiety at C-21 or C-3 were synthetized to compare their cytotoxicity effect. The final compounds were evaluated on three human cancer cell lines: PC-3 (prostate cancer), MCF-7 (breast cancer), SKLU-1 (lung cancer) and a noncancerous cell line HGF (human gingival fibroblast). Two steroids with a 4-fluorinated benzoic acid ester at C-21 were the most active against lung cancer cell line with IC50 of 13.1 ± 1.2 and 12.8 ± 0.5 μM and showed a low percentage of cytotoxicity for noncancerous cells (27.63 ± 2.3 and 18.39 ± 1.2% in the screening at 50 μM).
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Affiliation(s)
- Alejandra Chávez-Riveros
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Cd.Mx., Mexico.
| | - Abigail Cruz Noriega
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de Mexico, 04510 Cd.Mx., Mexico
| | - María Teresa Ramírez Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Cd.Mx., Mexico
| | - Luis D Miranda
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Cd.Mx., Mexico
| | - Eugene Bratoeff
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de Mexico, 04510 Cd.Mx., Mexico
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24
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Biological synthesis of ZnO nanoparticles using C. albicans and studying their catalytic performance in the synthesis of steroidal pyrazolines. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.05.004] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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25
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Maurya SW, Dev K, Singh KB, Rai R, Siddiqui IR, Singh D, Maurya R. Synthesis and biological evaluation of heterocyclic analogues of pregnenolone as novel anti-osteoporotic agents. Bioorg Med Chem Lett 2017; 27:1390-1396. [DOI: 10.1016/j.bmcl.2017.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 01/25/2017] [Accepted: 02/02/2017] [Indexed: 11/16/2022]
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26
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Rassokhina IV, Volkova YA, Kozlov AS, Scherbakov AM, Andreeva OE, Shirinian VZ, Zavarzin IV. Synthesis and antiproliferative activity evaluation of steroidal imidazo[1,2-a]pyridines. Steroids 2016; 113:29-37. [PMID: 27263438 DOI: 10.1016/j.steroids.2016.06.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/18/2016] [Accepted: 06/01/2016] [Indexed: 01/27/2023]
Abstract
An elegant approach to unknown steroidal imidazo[1,2-a]pyridine hybrids is disclosed. Unique derivatives of androstene and estrane series containing imidazo[1,2-a]pyridine motifs were prepared from 17-ethynyl steroids in good yields via copper-catalyzed cascade aminomethylation/cycloisomerization with imines. The synthesized compounds were screened for cytotoxicity against human breast (MCF-7, MDA-MB-231, HBL-100, MDA-MB-453) and prostate (LNCaP-LN3, PC-3, DU 145) cancer cell lines. The majority of tested compounds showed activities at μM level in breast cancer cells. The hormone-responsive breast cancer cells MCF-7 were more sensitive to novel compounds than ERα-negative cells; in particular, compounds 6a,b exhibited promising cytotoxicity against this cell line with the IC50 values in the range of 3-4μM. Furthermore, compound 4a showed remarkable effects as a selective ERα receptor modulator.
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Affiliation(s)
- Irina V Rassokhina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia
| | - Yulia A Volkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia.
| | - Andrey S Kozlov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia
| | - Alexander M Scherbakov
- N. N. Blokhin Russian Cancer Research Center, Kashirskoye shosse 24, 115478 Moscow, Russia
| | - Olga E Andreeva
- N. N. Blokhin Russian Cancer Research Center, Kashirskoye shosse 24, 115478 Moscow, Russia
| | - Valerik Z Shirinian
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia
| | - Igor V Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, 119991 Moscow, Russia
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Kovács D, Wölfling J, Szabó N, Szécsi M, Schelz Z, Zupkó I, Frank É. Synthesis of novel 17-(4′-formyl)pyrazolylandrosta-5,16-dienes and their derivatives as potent 17α-hydroxylase/C17,20-lyase inhibitors or antiproliferative agents depending on the substitution pattern of the heteroring. Eur J Med Chem 2016; 120:284-95. [DOI: 10.1016/j.ejmech.2016.05.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 01/19/2023]
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Nadaraia NS, Onashvili EO, Kakhabrishvili ML, Barbakadze NN, Sylla B, Pichette A. Synthesis and Antiviral Activity of Several N-Containing 5 α-STEROIDS. Chem Nat Compd 2016; 52:853-855. [PMID: 32214424 PMCID: PMC7088190 DOI: 10.1007/s10600-016-1795-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/27/2022]
Abstract
A study of the antiviral activity of several new hydrazones and amines and amides of 5α-steroids that were synthesized by us earlier found highly and moderately active compounds. The structures of the synthesized compounds were proven using IR, PMR, 13C NMR, and mass spectral data.
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Affiliation(s)
- N. Sh. Nadaraia
- I. Kutateladze Institute of Pharmaceutical Chemistry, Tbilisi State Medical University, Tbilisi, 0159 Georgia
| | - E. O. Onashvili
- I. Kutateladze Institute of Pharmaceutical Chemistry, Tbilisi State Medical University, Tbilisi, 0159 Georgia
| | - M. L. Kakhabrishvili
- I. Kutateladze Institute of Pharmaceutical Chemistry, Tbilisi State Medical University, Tbilisi, 0159 Georgia
| | - N. N. Barbakadze
- I. Kutateladze Institute of Pharmaceutical Chemistry, Tbilisi State Medical University, Tbilisi, 0159 Georgia
| | - B. Sylla
- LASEVE, Universite Quebec a Chicoutim, Chicoutimi, QC Canada G7H 2BI
| | - A. Pichette
- LASEVE, Universite Quebec a Chicoutim, Chicoutimi, QC Canada G7H 2BI
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Mótyán G, Kovács F, Wölfling J, Gyovai A, Zupkó I, Frank É. Microwave-assisted stereoselective approach to novel steroidal ring D-fused 2-pyrazolines and an evaluation of their cell-growth inhibitory effects in vitro. Steroids 2016; 112:36-46. [PMID: 27154752 DOI: 10.1016/j.steroids.2016.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/15/2016] [Accepted: 04/29/2016] [Indexed: 10/21/2022]
Abstract
Novel ring D-condensed 2-pyrazolines in the Δ(5)-androstene series were efficiently synthesized from 16-dehydropregnenolone or its acetate with different arylhydrazines or methylhydrazine, respectively, under microwave irradiation. The reactions are assumed to occur via hydrazone intermediates, followed by intramolecular 1,4-addition leading to the fused heteroring stereoselectively with a 16α,17α-cis ring junction. The synthesized compounds were subjected to in vitro pharmacological studies of their antiproliferative activities against four human breast (MCF7, T47D, MDA-MB-231 and MDA-MB-361) and three cervical (HeLa, C33A and SiHA) malignant cell lines. Flow cytometry revealed that the most potent agent elicited a cell cycle disturbance.
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Affiliation(s)
- Gergő Mótyán
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Ferenc Kovács
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - János Wölfling
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - András Gyovai
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - István Zupkó
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Éva Frank
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary.
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Weng JH, Chung BC. Nongenomic actions of neurosteroid pregnenolone and its metabolites. Steroids 2016; 111:54-59. [PMID: 26844377 DOI: 10.1016/j.steroids.2016.01.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 01/25/2016] [Accepted: 01/25/2016] [Indexed: 02/07/2023]
Abstract
Steroids have been widely used in the clinical setting. They bind and activate nuclear receptors to regulate gene expression. In addition to activating genomic transcription, steroids also exert nongenomic actions. The current article focuses on the nongenomic actions of neurosteroids, including pregnenolone (P5), 7α-hydroxypregnenolone, pregnenolone sulfate and allopregnanolone. Pregnenolone and its derivatives promote neuronal activity by enhancing learning and memory, relieving depression, enhancing locomotor activity, and promoting neuronal cell survival. They exert these effects by activating various target proteins located in the cytoplasm or cell membrane. Pregnenolone and its metabolites bind to receptors such as microtubule-associated proteins and neurotransmitter receptors to elicit a series of reactions including stabilization of microtubules, increase of ion flux into cells, and dopamine release. The wide actions of neurosteroids indicate that pregnenolone derivatives have great potential in future treatment of neurological diseases.
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Affiliation(s)
- Jui-Hsia Weng
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan; Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - Bon-Chu Chung
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan.
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31
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Vallée M. Neurosteroids and potential therapeutics: Focus on pregnenolone. J Steroid Biochem Mol Biol 2016; 160:78-87. [PMID: 26433186 DOI: 10.1016/j.jsbmb.2015.09.030] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/18/2015] [Accepted: 09/21/2015] [Indexed: 12/26/2022]
Abstract
Considerable evidence from preclinical and clinical studies shows that steroids and in particular neurosteroids are important endogenous modulators of several brain-related functions. In this context, it remains to be elucidated whether neurosteroids may serve as biomarkers in the diagnosis of disorders and might have therapeutic potential for the treatment of these disorders. Pregnenolone (PREG) is the main steroid synthesized from cholesterol in mammals and invertebrates. PREG has three main sources of synthesis, the gonads, adrenal glands and brain and is submitted to various metabolizing pathways which are modulated depending on various factors including species, steroidogenic tissues and steroidogenic enzymes. Looking at the whole picture of steroids, PREG is often known as the precursor to other steroids and not as an active steroid per se. Actually, physiological and brain functions have been studied mainly for steroids that are very active either binding to specific intracellular receptors, or modulating with high affinity the abundant membrane receptors, GABAA or NMDA receptors. However, when high sensitive and specific methodological approaches were available to analyze low concentrations of steroids and then match endogenous levels of different steroid metabolomes, several studies have reported more significant alterations in PREG than in other steroids in extraphysiological or pathological conditions, suggesting that PREG could play a functional role as well. Additionally, several molecular targets of PREG were revealed in the mammalian brain and beneficial effects of PREG have been demonstrated in preclinical and clinical studies. On this basis, this review will be divided into three parts. The first provides a brief overview of the molecular targets of PREG and the pharmacological effects observed in animal and human studies. The second will focus on the possible functional role of PREG with an outline of the modulation of PREG levels in animal and in human research. Finally, the review will highlight the possible therapeutic uses of PREG that point towards the development of pregnenolone-like molecules.
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Affiliation(s)
- Monique Vallée
- INSERM U862, Neurocentre Magendie, Pathophysiology of Addiction, Bordeaux F33077, France; Université de Bordeaux, Bordeaux F33077, France.
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Li J, Zhao X, Li L, Yuan Z, Tan F, Shi B, Zhang J. Design, synthesis and cytotoxic activity of a novel series of steroidal phenylpyrazoles. Steroids 2016; 107:45-54. [PMID: 26742627 DOI: 10.1016/j.steroids.2015.12.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 12/10/2015] [Accepted: 12/25/2015] [Indexed: 11/21/2022]
Abstract
Thirty novel steroidal pyrazole derivatives were designed and synthesized via a highly efficient route from pregnenolone (1) as starting material. The key intermediates 3a-c were obtained under Vilsmeier conditions, and the subsequent hydrolysis, acetylation or Borch reduction afforded thirty target compounds. These compounds were mainly characterized by (1)H NMR, (13)C NMR, DEPT135°. The structure of compound 3a was also confirmed by X-ray single crystal diffraction. The cytotoxicity of these compounds was evaluated by the SRB method against four cancer cell lines, including A549, Hela, MCF-7 and HepG2, and the results indicated that compounds 5a, 6a, 7a and 8a exhibited significant cytotoxicity with IC50 values ranging from 0.91 to 5.44 μM. Most importantly, compound 5a exhibited excellent cytotoxicity against A549 with an IC50 value of 0.91 μM. On the basis of our research the structure-activity relationships (SAR) of these compounds were discussed. This work provides some important hints for further structural modification of steroids towards developing novel and highly effective anticancer drugs.
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Affiliation(s)
- Jian Li
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ximei Zhao
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Longbo Li
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhipeng Yuan
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fangfang Tan
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Baojun Shi
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling 712100, Shaanxi, China.
| | - Jiwen Zhang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling 712100, Shaanxi, China.
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Yao YH, Li J, Yuan LF, Zhang ZQ, Zhang FX. Novel porphyrin–Schiff base conjugates: synthesis, characterization and in vitro photodynamic activities. RSC Adv 2016. [DOI: 10.1039/c6ra05682b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Three novel porphyrin–Schiff base conjugates were synthesized and characterized. Their phototoxic activities were improved after irradiation and increased significantly with the increase of doses against A431 cells.
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Affiliation(s)
- Ya-Hong Yao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- China
| | - Jun Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- China
| | - Long-Fei Yuan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- China
| | - Zeng-Qi Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- China
| | - Feng-Xing Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- China
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Dávola ME, Mazaira GI, Galigniana MD, Alché LE, Ramírez JA, Barquero AA. Synthetic pregnenolone derivatives as antiviral agents against acyclovir-resistant isolates of Herpes Simplex Virus Type 1. Antiviral Res 2015; 122:55-63. [DOI: 10.1016/j.antiviral.2015.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 08/04/2015] [Accepted: 08/06/2015] [Indexed: 10/23/2022]
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Dar AM, Gatoo MA, Shamsuzzaman. Steroidal dihydrocarbothioic acid amido pyrazoles: synthesis, characterization, cytotoxicity and genotoxicity studies. J Chem Biol 2015; 8:107-18. [PMID: 26101552 DOI: 10.1007/s12154-015-0137-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 05/19/2015] [Indexed: 11/25/2022] Open
Abstract
A new series of steroidal dihydrocarbothioic acid amido pyrazole analogues were synthesized, and after characterization, evaluation for cytotoxicity, comet assay and western blotting was carried out. The synthesis of these analogues is convenient and involves two steps, i.e. aldol condensation as first step followed by nucleophilic addition of thiosemicarbazide across α, β-unsaturated carbonyl as a later step. Quantitative yields of more than 80 % are obtained in both the steps. After characterization by IR, (1)H NMR, (13)C NMR, MS and analytical data, all the compounds of both series were tested for cytotoxic activity against a panel of different human cancer cell lines by MTT assay, during which compound 3e, 3f, 4e, 4f and 4h are very potent especially against HepG2 and MCF-7 cancer cell lines. Cell cycle analysis depicted the cell death in S-phase while as annexin V-FITC/PI analysis showed that compounds effectively induce apoptosis. Apoptotic degradation of DNA of MCF-7 cells in the presence of different steroidal derivatives was analysed by agarose gel electrophoresis and visualized by ethidium bromide staining (comet assay). In western blotting analysis, the relative expressions of relevant apoptotic markers depicted an apoptosis by steroidal dihydropyrazole in MCF-7 cancer cells.
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Affiliation(s)
- Ayaz Mahmood Dar
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002 India
| | - Manzoor Ahmad Gatoo
- Department of Biochemistry, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, 202002 India
| | - Shamsuzzaman
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002 India
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Design and synthesis of 21-alkynylaryl pregnenolone derivatives and evaluation of their anticancer activity. Bioorg Med Chem 2014; 22:6980-8. [DOI: 10.1016/j.bmc.2014.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 10/04/2014] [Accepted: 10/09/2014] [Indexed: 11/20/2022]
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Synthesis and cytotoxic effect on cancer cell lines and macrophages of novel progesterone derivatives having an ester or a carbamate function at C-3 and C-17. Eur J Med Chem 2014; 82:498-505. [DOI: 10.1016/j.ejmech.2014.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 10/25/2022]
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Banday AH, Akram SMM, Shameem SA. Benzylidine pregnenolones and their oximes as potential anticancer agents: synthesis and biological evaluation. Steroids 2014; 84:64-9. [PMID: 24699163 DOI: 10.1016/j.steroids.2014.03.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/05/2014] [Accepted: 03/15/2014] [Indexed: 11/20/2022]
Abstract
The present study reveals the anticancer activity of benzylidine pregnenolones and their oxime derivatives. The synthesis of the analogs of both series is very simple and involves aldol condensation in the first step followed by nucleophillic addition of hydroxylamine across carbonyl in the second step. Quantitative yields of more than 80% are obtained in both the steps. All the compounds were tested for their cytotoxic activities against a panel of six human cancer cell lines. Amongst all the compounds of both the series screened for their cytotoxic activity, compound 3e, 3f and 4e are very potent especially against HCT-15 and MCF-7 cancer cell lines.
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Affiliation(s)
- Abid H Banday
- Department of Chemistry, Islamia College of Science and Commerce, Srinagar 190009, India; Department of Chemistry and Biochemistry, University of Arizona, Tucson 85721, USA.
| | - S M M Akram
- Department of Chemistry, Islamia College of Science and Commerce, Srinagar 190009, India; Department of Chemistry, University of Kashmir, Srinagar 190002, India
| | - Shameem A Shameem
- Department of Chemistry, Islamia College of Science and Commerce, Srinagar 190009, India
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Gupta A, Kumar BS, Negi AS. Current status on development of steroids as anticancer agents. J Steroid Biochem Mol Biol 2013; 137:242-70. [PMID: 23727548 DOI: 10.1016/j.jsbmb.2013.05.011] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 04/25/2013] [Accepted: 05/19/2013] [Indexed: 01/13/2023]
Abstract
Steroids are important biodynamic agents. Their affinities for various nuclear receptors have been an interesting feature to utilize them for drug development particularly for receptor mediated diseases. Steroid biochemistry and its crucial role in human physiology, has attained importance among the researchers. Recent years have seen an extensive focus on modification of steroids. The rational modifications of perhydrocyclopentanophenanthrene nucleus of steroids have yielded several important anticancer lead molecules. Exemestane, SR16157, fulvestrant and 2-methoxyestradiol are some of the successful leads emerged on steroidal pharmacophores. The present review is an update on some of the steroidal leads obtained during past 25 years. Various steroid based enzyme inhibitors, antiestrogens, cytotoxic conjugates and steroidal cytotoxic molecules of natural as well as synthetic origin have been highlighted. This article is part of a Special Issue entitled "Synthesis and biological testing of steroid derivatives as inhibitors".
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Affiliation(s)
- Atul Gupta
- Medicinal Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Kukrail Picnic Spot Road, Lucknow 226015, U.P., India
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40
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Weng JH, Liang MR, Chen CH, Tong SK, Huang TC, Lee SP, Chen YR, Chen CT, Chung BC. Pregnenolone activates CLIP-170 to promote microtubule growth and cell migration. Nat Chem Biol 2013; 9:636-42. [PMID: 23955365 DOI: 10.1038/nchembio.1321] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 07/24/2013] [Indexed: 01/09/2023]
Abstract
Pregnenolone (P5) is a neurosteroid that improves memory and neurological recovery. It is also required for zebrafish embryonic development. However, its mode of action is unclear. Here we show that P5 promotes cell migration and microtubule polymerization by binding a microtubule plus end-tracking protein, cytoplasmic linker protein 1 (CLIP-170). We captured CLIP-170 from zebrafish embryonic extract using a P5 photoaffinity probe conjugated to diaminobenzophenone. P5 interacted with CLIP-170 at its coiled-coil domain and changed it into an extended conformation. This increased CLIP-170 interaction with microtubules, dynactin subunit p150(Glued) and LIS1; it also promoted CLIP-170-dependent microtubule polymerization. CLIP-170 was essential for P5 to promote microtubule abundance and zebrafish epiboly cell migration during embryogenesis, and overexpression of the P5-binding region of CLIP-170 delayed this migration. P5 also sustained migration directionality of cultured mammalian cells. Our results show that P5 activates CLIP-170 to promote microtubule polymerization and cell migration.
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Affiliation(s)
- Jui-Hsia Weng
- 1] Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan. [2] Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
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Kakati D, Sarma RK, Saikia R, Barua NC, Sarma JC. Rapid microwave assisted synthesis and antimicrobial bioevaluation of novel steroidal chalcones. Steroids 2013; 78:321-6. [PMID: 23287649 DOI: 10.1016/j.steroids.2012.12.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/30/2012] [Accepted: 12/16/2012] [Indexed: 10/27/2022]
Abstract
A novel class of chalconoyl pregnenolones has been prepared via Claisen-Schmidt condensation under microwave activation and solvent free reaction conditions. The compounds were screened for antimicrobial activity against two bacterial strains Bacillus subtilis and Escherichia coli and two fungal strains Aspergillus niger and Candida albicans. Some of the compounds exhibited significant inhibitory activity against the microbial strains. Presence of the α,β-unsaturated carbonyl moiety in the synthesized compounds was found to be essential for the activity as manipulation of the same through epoxidation of the double bond diminished the activity.
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Affiliation(s)
- Dwipen Kakati
- Natural Products Chemistry Division, CSIR North East Institute of Science & Technology, Jorhat, Assam, India.
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42
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Tautomeric origin of dual effects of N1-nicotinoyl-3-(4′-hydroxy-3′-methyl phenyl)-5-[(sub)phenyl]-2-pyrazolines on bacterial and viral strains: POM analyses as new efficient bioinformatics’ platform to predict and optimize bioactivity of drugs. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0143-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Sabitha G, Reddy DV, Reddy SSS, Yadav JS, Kumar CG, Sujitha P. Total synthesis of desacetylumuravumbolide, umuravumbolide and their biological evaluation. RSC Adv 2012. [DOI: 10.1039/c2ra20830j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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