1
|
Malakhova V, Scherbakov A, Sorokin D, Leanavets H, Dzichenka Y, Zavarzin I, Volkova Y. Exploration and biological evaluation of 20-vinyl pregnenes: A step forward toward selective modulators of the estrogen receptor α signaling for breast cancer treatment. Arch Pharm (Weinheim) 2024; 357:e2300651. [PMID: 38570819 DOI: 10.1002/ardp.202300651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/01/2024] [Accepted: 03/11/2024] [Indexed: 04/05/2024]
Abstract
A series of D-ring modified steroids bearing a vinyl ketone pendant were synthesized and evaluated for antiproliferative activity against breast cancer cell line and cytochromes P450. The lead compound, 21-vinyl 20-keto-pregnene (2f) (IC50 = 2.4 µM), was shown to be a promising candidate for future anticancer drug design, particularly against estrogen receptor α (ERα)-positive breast cancer. The lead compound was found to have a significant effect on the signaling pathways in parental and 4-hydroxytamoxifen-resistant cells. Compound 2f modulated the ERK, cyclin D1, and CDK4 pathways and blocked the expression of ERα, the main driver of breast cancer growth. Compound 2f significantly reduced 17β-estradiol-induced progesterone receptor expression. Accumulation of cleaved poly(ADP-ribose) polymerase in cells treated with compound 2f indicated induction of apoptosis. The selectivity analysis showed that lead compound 2f produces no significant effects on cytochromes P450, CYP19A1, CYP21A2, and CYP7B1.
Collapse
Affiliation(s)
- Victoria Malakhova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alexander Scherbakov
- N.N. Blokhin National Medical Research Center of Oncology, Moscow, Russia
- Gause Institute of New Antibiotics, Moscow, Russia
| | - Danila Sorokin
- N.N. Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - Hanna Leanavets
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Yaraslau Dzichenka
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Igor Zavarzin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yulia Volkova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| |
Collapse
|
2
|
Ilovaisky AI, Scherbakov AM, Chernoburova EI, Povarov AA, Shchetinina MA, Merkulova VM, Salnikova DI, Sorokin DV, Bozhenko EI, Zavarzin IV, Terent'ev AO. Secosteroid thiosemicarbazides and secosteroid-1,2,4-triazoles as antiproliferative agents targeting breast cancer cells: Synthesis and biological evaluation. J Steroid Biochem Mol Biol 2023; 234:106386. [PMID: 37666392 DOI: 10.1016/j.jsbmb.2023.106386] [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: 06/30/2023] [Revised: 08/14/2023] [Accepted: 08/27/2023] [Indexed: 09/06/2023]
Abstract
A convenient and selective approach to 13,17-secoestra-1,3,5(10)-trien-17-oic acid [N'-arylcarbothioamido]hydrazides and hybrid molecules containing secosteroid and 1,2,4-triazole fragments was disclosed and these novel types of secosteroids were screened for cytotoxicity against hormone-dependent human breast cancer cell line MCF-7. Most of secosteroid-1,2,4-triazole hybrids showed significant cytotoxic effect comparable or superior to that of the reference drug cisplatin. Hit secosteroid-1,2,4-triazole hybrids 4b and 4h were characterized by high cytotoxicity and good selectivity towards MCF-7 breast cancer cells. PARP cleavage (marker of apoptosis) and ERα and cyclin D1 downregulation were discovered in MCF-7 cells treated with lead secosteroid-1,2,4-triazole hybrid 4b. The synthesized secosteroids may be considered as new promising anticancer agents.
Collapse
Affiliation(s)
- Alexey I Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Alexander M Scherbakov
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye shosse 24, Moscow 115522, Russia
| | - Elena I Chernoburova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Andrey A Povarov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Marina A Shchetinina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Valentina M Merkulova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Diana I Salnikova
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye shosse 24, Moscow 115522, Russia
| | - Danila V Sorokin
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye shosse 24, Moscow 115522, Russia
| | - Eugene I Bozhenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Igor V Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia.
| |
Collapse
|
3
|
Guliani E, Taneja A, Ranjan KR, Mishra V. Luminous Insights: Exploring Organic Fluorescent "Turn-On" Chemosensors for Metal-Ion (Cu +2, Al +3, Zn +2, Fe +3) Detection. J Fluoresc 2023:10.1007/s10895-023-03419-5. [PMID: 37787885 DOI: 10.1007/s10895-023-03419-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/25/2023] [Indexed: 10/04/2023]
Abstract
There are several metal ions that are vital for the growth of the environmental field as well as for the biological field but only up to the maximum limit. If they are present in excess, it could be hazardous for the human health. With the growing technology, a series of various detection techniques are employed in order to recognize those metal ions, some of them include voltammetry, electrochemical methods, inductively couples, etc. However, these techniques are expensive, time consuming, requires large storage, advanced instrumentation, and a skilled person to operate. So, here comes the need of a sensor and it is defined as a miniature device which detects the substance of interest by giving response in the form of energy change. So, from past few decades, many sensors have been formulated for detecting metal ions with some basic characteristics like selectivity, specificity, sensitivity, high accuracy, lower detection limit, and response time. Detecting various metal ions by employing chemosensors involves different techniques such as fluorescence, phosphorescence, chemiluminescence, electrochemical, and colorimetry. The fluorescence technique has certain advantages over the other techniques. This review mainly focuses on the chemosensors that show a signal in the form of fluorescence to detect Al+3, Zn+2, Cu+2, and Fe+3 ions.
Collapse
Affiliation(s)
- Eksha Guliani
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India
| | - Akanksha Taneja
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India
| | - Kumar Rakesh Ranjan
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India.
| | - Vivek Mishra
- Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh, 201301, India.
| |
Collapse
|
4
|
Birukova V, Scherbakov A, Ilina A, Salnikova D, Andreeva O, Dzichenka Y, Zavarzin I, Volkova Y. Discovery of highly potent proapoptotic antiestrogens in a series of androst-5,16-dienes D-modified with imidazole-annulated pendants. J Steroid Biochem Mol Biol 2023; 231:106309. [PMID: 37037385 DOI: 10.1016/j.jsbmb.2023.106309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/29/2023] [Accepted: 04/07/2023] [Indexed: 04/12/2023]
Abstract
Heterocyclic derivatives of steroid hormones are potent anticancer agents, which are used in the chemotherapy of breast and prostate cancers. Here, we describe a novel series of androstenes, D-modified with imidazole-annulated pendants, with significant anticancer activity. Novel C17-linked imidazole-annulated heterocyclic derivatives of dehydropregnenolone acetate were synthesized by the cyclocondensation with amidines using 3β-acetoxy-21-bromopregna-5,16-dien-20-one as the substrate. The antiproliferative potency of all the synthesized compounds was evaluated against human prostate (22Rv1) and human breast (MCF7) cancer cell lines and cytochromes P450. The lead compound, imidazo[1,2-a]pyridine derivative 3h, was revealed to be a promising candidate for future anticancer drug design, particularly against ERα-positive breast cancer. Lead compound 3h was found to be selective against MCF7 cells with IC50 of 0.1μM and to act as both a potent selective agent blocking estrogen receptor α, which is involved in the stimulation of breast cancer growth, and an effective apoptosis inducer. The potential ability of compound 3h to bind to ERα was studded using molecular docking and molecular dynamics simulation. The selectivity analysis showed that lead steroid 3h produces no effects on cytochromes P450 CYP17A1, CYP7A1, and CYP21A2.
Collapse
Affiliation(s)
- Valentina Birukova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Alexander Scherbakov
- Department of Experimental Tumor Biology, N. N. Blokhin National Medical Research Center of Oncology, 24 Kashirskoe shosse, 115522 Moscow, Russia
| | - Anastasia Ilina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Diana Salnikova
- Department of Experimental Tumor Biology, N. N. Blokhin National Medical Research Center of Oncology, 24 Kashirskoe shosse, 115522 Moscow, Russia
| | - Olga Andreeva
- Department of Experimental Tumor Biology, N. N. Blokhin National Medical Research Center of Oncology, 24 Kashirskoe shosse, 115522 Moscow, Russia
| | - Yaraslau Dzichenka
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 5/2 Kuprevich str., 220141, Minsk, Belarus
| | - Igor Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| | - Yulia Volkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russia
| |
Collapse
|
5
|
Smirnov GA, Gordeev PB, Chernoburova EI, Zavarzin IV. Synthesis of steroids containing N’-alkoxydiazene N-oxide groups. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3618-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
6
|
Fischer D, Balkenhohl M, Carreira EM. Cobalt-Catalyzed Cyclization of Unsaturated N-Acyl Sulfonamides: a Diverted Mukaiyama Hydration Reaction. JACS AU 2022; 2:1071-1077. [PMID: 35647594 PMCID: PMC9131372 DOI: 10.1021/jacsau.2c00186] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
The cycloisomerization of β-, γ-, and δ-unsaturated N-acyl sulfonamides to N-sulfonyl lactams and imidates is reported. This transformation is effected in the presence of a CoIII(salen) catalyst using t-BuOOH or air as the oxidant. The method shows good functional group tolerance (alkyl, aryl, heteroaryl, ether, N-Boc) and furnishes an underexplored class of cyclic building blocks. The strong solvent dependence of the transformation is investigated, and the synthetic versatility of the N-sulfonyl imidate product class is highlighted.
Collapse
|
7
|
Li J, Zhao Y, Yang J, Li R, Cao Z, Wan X. Ferric Sulphate/Potassium Bisulfate Promoted Facile Synthesis of
N
‐Sulfonylimidates from a Multi‐Component Reaction. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Yanwei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Jinwei Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Ruyi Li
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Zhiyu Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| |
Collapse
|
8
|
Ilovaisky AI, Merkulova VM, Chernoburova EI, Shchetinina MA, Salnikova DI, Scherbakov AM, Zavarzin IV, Terent'ev AO. Secosteroidal hydrazides: Promising scaffolds for anti-breast cancer agents. J Steroid Biochem Mol Biol 2021; 214:106000. [PMID: 34547379 DOI: 10.1016/j.jsbmb.2021.106000] [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: 08/03/2021] [Revised: 09/07/2021] [Accepted: 09/15/2021] [Indexed: 11/15/2022]
Abstract
A convenient and selective approach to 13,17-secoestra-1,3,5(10)-trien-17-oic acid hydrazides and their N'-(het)arylmethylene derivatives was disclosed and these novel types of secosteroids were screened for cytotoxicity against hormone-dependent human breast cancer cell line MCF-7. A number of 13,17-secoestra-1,3,5(10)-trien-17-oic acid [N'-(het)arylmethylene]hydrazides show significant cytotoxic effect comparable or superior to that for reference drug cisplatin. Compound 3l exhibits the highest activity with the IC50 value of about 2 μM and is 2.8 times more active than cisplatin. Hit 13,17-secoestra-1,3,5(10)-trien-17-oic acid [N'-(het)arylmethylene]hydrazides 3d, 3l and 3q are characterized by high cytotoxicity and good selectivity towards MCF-7 breast cancer cells. The synthesized secosteroids may be considered as new promising antitumor agents.
Collapse
Affiliation(s)
- Alexey I Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia
| | - Valentina M Merkulova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia
| | - Elena I Chernoburova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia
| | - Marina A Shchetinina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia
| | - Diana I Salnikova
- Department of Experimental Tumor Biology, N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, 24 Kashirskoye sh., Moscow, 115522, Russia
| | - Alexander M Scherbakov
- Department of Experimental Tumor Biology, N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, 24 Kashirskoye sh., Moscow, 115522, Russia
| | - Igor V Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russia.
| |
Collapse
|
9
|
Carrasco-Carballo A, Guadalupe Hernández-Linares M, Cárdenas-García M, Sandoval-Ramírez J. Synthesis and biological in vitro evaluation of the effect of hydroxyimino steroidal derivatives on breast cancer cells. Steroids 2021; 166:108787. [PMID: 33383064 DOI: 10.1016/j.steroids.2020.108787] [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: 09/11/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 01/29/2023]
Abstract
Breast cancer is the most common cause of cancer death in women, according to Global Cancer Observatory. This fact forces scientists to continue in the search for effective treatments against this aggressive type of cancer. Breast cancer frequently metastasizes to other organs, most often the bones, lungs, and liver. Breast cancer is normally associated with estrogen and progestogen levels and can be hormone or non-hormone dependent. In current experiments herein reported, some hydroxyimino spirostan derivatives showed great potential against MCF-7 breast cancer, a Luminal-A cancer. On the other hand, a set of synthesized 6-hydroxyimino-22-oxocholestane compounds had excellent activity against the MDA-MB-231 breast cancer cell line. The synthesis of hydroxyamino derivatives from spirostan and 22-oxocholestane compounds was improved. The hydroxyimino compounds enhanced the bioactivity when compared with their parent carbonyl skeletons.
Collapse
Affiliation(s)
- Alan Carrasco-Carballo
- Facultad de Ciencias Químicas, Laboratorio de Elucidación y Síntesis en Química Orgánica, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - María Guadalupe Hernández-Linares
- Herbario y Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Mexico; Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - Maura Cárdenas-García
- Facultad de Medicina, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Laboratorio de Elucidación y Síntesis en Química Orgánica, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico.
| |
Collapse
|
10
|
Kumar N, Gulati HK, Sharma A, Heer S, Jassal AK, Arora L, Kaur S, Singh A, Bhagat K, Kaur A, Singh H, Singh JV, Bedi PMS. Most recent strategies targeting estrogen receptor alpha for the treatment of breast cancer. Mol Divers 2020; 25:603-624. [PMID: 32886304 DOI: 10.1007/s11030-020-10133-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/13/2020] [Indexed: 11/28/2022]
Abstract
Breast cancer is the most prominent, frequently diagnosed and leading cause of death among women. Estrogen is an agonist of estrogen receptor alpha (ER-α), expressed in mammary glands and is responsible for initiating many signalling pathways that lead to differentiation and development of breast tissue. Any mutations in these signalling pathways result in irregular growth of mammary tissue, leading to the development of tumour or cancer. All these observations attract the attention of researchers to antagonize ER-α receptor either by developing selective estrogen receptor modulators or by selective estrogen receptor degraders. Therefore, this article provides a brief overview of various factors that are responsible for provoking breast cancer in women and design strategies recently used by the various research groups across the world for antagonizing or demodulating ER-α.
Collapse
Affiliation(s)
- Nitish Kumar
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.,Drug and Pollution Testing Laboratory, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Harmandeep Kaur Gulati
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Aakriti Sharma
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Shilpa Heer
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Anupmjot Kaur Jassal
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Lovenish Arora
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Simranpreet Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Atamjit Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Kavita Bhagat
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Arshmeet Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Harbinder Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Jatinder Vir Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Preet Mohinder Singh Bedi
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India. .,Drug and Pollution Testing Laboratory, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| |
Collapse
|
11
|
Novel d-Annulated Pentacyclic Steroids: Regioselective Synthesis and Biological Evaluation in Breast Cancer Cells. Molecules 2020; 25:molecules25153499. [PMID: 32752019 PMCID: PMC7435891 DOI: 10.3390/molecules25153499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022] Open
Abstract
The acid-catalyzed cyclization of benzylidenes based on 16-dehydropregnenolone acetate (16-DPA) was studied. It was found that these compounds readily undergo regioselective interrupted Nazarov cyclization with trapping chloride ion and an efficient method of the synthesis of d-annulated pentacyclic steroids based on this reaction was proposed. The structures of the synthesized pentacyclic steroids were determined by NMR and X-ray diffraction. It was found that the reaction affords a single diastereomer, but the latter can crystallize as two conformers depending on the structure. Antiproliferative activity of synthesized compounds was evaluated against two breast cancer cell lines: MCF-7 and MDA-MB-231. All tested compounds showed relatively high antiproliferative activity. The synthetic potential of the protocol developed was illustrated by the gram-scale experiment.
Collapse
|
12
|
R S, Mk K. Lead optimization of 4-(thio)-chromenone 6- O-sulfamate analogs using QSAR, molecular docking and DFT - a combined approach as steroidal sulfatase inhibitors. J Recept Signal Transduct Res 2020; 41:123-137. [PMID: 32705921 DOI: 10.1080/10799893.2020.1794004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Aromatase and steroidal sulfatase (STS) are steroidogenic enzyme that increases the concentration of estrogens in circulation, a primary factor leading to breast cancer. At molecular level, 87% of STS is expressed and an inhibitor targeting STS could decrease the level of estrogens. In an attempt to identify the chemical structural requirement targeting placental STS inhibition, 26 compounds with pIC50 ranging from 4.61 to 9.46 were subjected to computational studies including Quantitative Structural-Activity Relationship (QSAR), MolecularDocking followed by Density Functional Theory (DFT) studies. A robust and predictable model were developed with good R2 (0.834) and cross-validated correlation coefficient value Q2 LOO (0.786) explaining the relationship quantitatively. The regression graphs suggests that the STS inhibition was greatly dependent on the electro topological state of an atom, sum of the atom type E-state (SdssC), maximum E-states for strong hydrogen bond acceptors (maxHBa) and basic group count descriptor (BCUTp-1h). Furthermore, docking results showed favorable interactions of sulfamate analogs with catalytically important amino acid residues such as LEU74, VAL101, and VAL486. The interactions of the best active compound 3j when compared with standard Irosustat show similar binding energies. DFT studies further confirm the presence of HOMO orbital centered on chromenone ring further highlighting its importance for receptor ligand hydrophobic interaction. The study reveals that substitution of thio in chromenone nucleus and introduction of adamantyl substitution at second position are favorable in inhibiting the enzyme STS.
Collapse
Affiliation(s)
- Srimathi R
- Department of Pharmaceutical Chemistry, SRM College of Pharmacy, SRMIST, Kattankulathur, TamilNadu, India
| | - Kathiravan Mk
- Department of Pharmaceutical Chemistry, SRM College of Pharmacy, SRMIST, Kattankulathur, TamilNadu, India.,Dr. APJ Abdul Kalam Research Lab, SRM College of Pharmacy, SRM IST, Kattankulathur, Tamil Nadu, India
| |
Collapse
|
13
|
Mutlu H, Theato P. Making the Best of Polymers with Sulfur–Nitrogen Bonds: From Sources to Innovative Materials. Macromol Rapid Commun 2020; 41:e2000181. [DOI: 10.1002/marc.202000181] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/22/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Hatice Mutlu
- Soft Matter Synthesis LaboratoryInstitute for Biological Interfaces IIIKarlsruhe Institute of Technology (KIT) Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen D‐76344 Germany
| | - Patrick Theato
- Soft Matter Synthesis LaboratoryInstitute for Biological Interfaces IIIKarlsruhe Institute of Technology (KIT) Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen D‐76344 Germany
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of Technology (KIT) Engesser Str. 18 Karlsruhe D‐76131 Germany
| |
Collapse
|