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Bhat KA, Naseer S, Gani I, Jameel S, Amin H, Bhat SA, Gupta AP. Isolation and Identification of Cytotoxic and Antimalarial Constituents from Artemisia moorcroftiana. ChemistrySelect 2021. [DOI: 10.1002/slct.202003944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Khursheed A. Bhat
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
- Academy of Scientific & Innovative Research, Indian Institute of Integrative Medicine, Srinagar Jammu & Kashmir 190005 India
| | - Syed Naseer
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
| | - Ifshana Gani
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
| | - Salman Jameel
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
| | - Henna Amin
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
| | - Showkat Ahmad Bhat
- Indian Institute of Integrative Medicine (CSIR) Srinagar Jammu and Kashmir 190005 India
| | - Ajai P. Gupta
- Indian Institute of Integrative Medicine (CSIR) Jammu Jammu and Kashmir 180001 India
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Shakeel-u-Rehman, Bhat KA, Lone SH, Malik FA. Click chemistry inspired facile synthesis and bioevaluation of novel triazolyl analogs of D-(+)-pinitol. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Lone SH, Bhat MA, Lone RA, Jameel S, Lone JA, Bhat KA. Hemisynthesis, computational and molecular docking studies of novel nitrogen containing steroidal aromatase inhibitors: testolactam and testololactam. NEW J CHEM 2018. [DOI: 10.1039/c8nj00063h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combined DFT and molecular docking studies of synthesized steroidal lactams reveal their potential as aromatase inhibitors.
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Affiliation(s)
- Shabir H. Lone
- Department of Chemistry
- Govt Degree College Khanabal
- Anantnag
- India
| | - Muzzaffar A. Bhat
- Department of Chemistry
- Islamic University of Science and Technology
- Awantipora
- India
| | - Rayees A. Lone
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine
- Srinagar
- India
| | - Salman Jameel
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine
- Srinagar
- India
| | - Javeed A. Lone
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine
- Srinagar
- India
| | - Khursheed A. Bhat
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine
- Srinagar
- India
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Lone SH, Jameel S, Bhat MA, Lone RA, Butcher RJ, Bhat KA. Synthesis of an unusual quinazoline alkaloid: theoretical and experimental investigations of its structural, electronic, molecular and biological properties. RSC Adv 2018; 8:8259-8268. [PMID: 35542000 PMCID: PMC9082197 DOI: 10.1039/c8ra00138c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 02/16/2018] [Indexed: 11/21/2022] Open
Abstract
An unusual quinazoline alkaloid (1) was obtained when 2-aminobenzaldehyde was refluxed with pyrrolidine in ethanol for 12 h. The synthesized compound was characterized using spectral data analysis augmented with X-ray and literature precedent. Single crystal analysis depicted four conformations differing slightly in bond angles and bond lengths. Compound 1 crystallizes in a triclinic crystal system with a P1̄ space group having two molecules within the unit cell. The experimentally obtained parameters were compared to those obtained theoretically, which depicted a good agreement. Using the DFT/B3LYP/6-31G (d,p) level of theory, HOMO–LUMO energy gap, molecular electrostatic potential (MEP), vibrational (IR) and NMR analyses were carried out. The HOMO–LUMO energy gap allowed the calculation of chemical hardness, chemical inertness, electronegativity and the electrophilicity index of the molecule, which depicted its potential kinetic stability and reactivity. Prediction of activity spectra of the target compound revealed that compound 1 possesses notable antineoplastic activity with Pa = 0.884. The molecule was therefore evaluated against various cancerous cell lines in an in vitro SRB assay which depicted that compound 1 possesses the highest growth inhibition activity against THP-1 cell lines with an IC50 of 7 μM. A comparative overview of theoretical and experimental studies concerning the electronic, structural and biological domains of the synthesized unusual quinazoline alkaloid is presented.![]()
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Affiliation(s)
| | - Salman Jameel
- Bioorganic Chemistry Division
- Indian Institute of Integrative Medicine
- Srinagar
- India 190005
| | - Muzzaffar A. Bhat
- Department of Chemistry
- Islamic University of Science and Technology
- Awantipora
- India
| | - Rayees A. Lone
- Bioorganic Chemistry Division
- Indian Institute of Integrative Medicine
- Srinagar
- India 190005
| | | | - Khursheed A. Bhat
- Bioorganic Chemistry Division
- Indian Institute of Integrative Medicine
- Srinagar
- India 190005
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Ayoob I, Lone SH, Masood-ur-Rahman, Zargar OA, Bashir R, Shakeel-u-Rehman, Khuroo MA, Bhat KA. New Semi-Synthetic Rosmarinic Acid-Based Amide Derivatives as Effective Antioxidants. ChemistrySelect 2017. [DOI: 10.1002/slct.201701812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Iram Ayoob
- Department of Chemistry; University of Kashmir, Hazratbal; Srinagar, Kashmir India 190006
| | - Shabir H. Lone
- Centre for Scientific Research; Department of Chemistry; GDC boys Anantnag, Kashmir; India 192102
| | - Masood-ur-Rahman
- Indian Institute of Integrative Medicine, Sanatnagar; Srinagar, Kashmir India 190005
- National Institute of Technology, Hazratbal, Kashmir; India 190006
| | - Ovais A. Zargar
- Department of Biochemistry; University of Kashmir, Hazratbal; Srinagar Kashmir India 190006
| | - Rohina Bashir
- Department of Biochemistry; University of Kashmir, Hazratbal; Srinagar Kashmir India 190006
| | - Shakeel-u-Rehman
- National Institute of Technology, Hazratbal, Kashmir; India 190006
| | - Mohd A. Khuroo
- Department of Chemistry; University of Kashmir, Hazratbal; Srinagar, Kashmir India 190006
| | - Khursheed A. Bhat
- Indian Institute of Integrative Medicine, Sanatnagar; Srinagar, Kashmir India 190005
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Rehman SU, Latief R, Bhat KA, Khuroo MA, Shawl AS, Chandra S. Comparative analysis of the aroma chemicals of Melissa officinalis using hydrodistillation and HS-SPME techniques. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.09.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Ayoob I, Hazari YM, Lone SH, Shakeel-u-Rehman, Khuroo MA, Fazili KM, Bhat KA. Phytochemical and Cytotoxic Evaluation of Peganum Harmala: Structure Activity Relationship Studies of Harmine. ChemistrySelect 2017. [DOI: 10.1002/slct.201700232] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Iram Ayoob
- Department of Chemistry; University of Kashmir; Srinagar 190006, Jammu and Kashmir India
| | - Younis M. Hazari
- Department of Biotechnology; University of Kashmir; Srinagar 190006, Jammu and Kashmir India
| | - Shabir H. Lone
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine (CSIR); Srinagar 190005, Jammu and Kashmir India
| | - Shakeel-u-Rehman
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine (CSIR); Srinagar 190005, Jammu and Kashmir India
| | - Mohammad A. Khuroo
- Department of Chemistry; University of Kashmir; Srinagar 190006, Jammu and Kashmir India
| | - Khalid M. Fazili
- Department of Biotechnology; University of Kashmir; Srinagar 190006, Jammu and Kashmir India
| | - Khursheed A. Bhat
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine (CSIR); Srinagar 190005, Jammu and Kashmir India
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Naseer S, Bhat KA, Qadri M, Riyaz-Ul-Hassan S, Malik FA, Khuroo MA. Bioactivity-Guided Isolation, Antimicrobial and Cytotoxic Evaluation of Secondary Metabolites fromCladosporium tenuissimumAssociated with Pinus wallichiana. ChemistrySelect 2017. [DOI: 10.1002/slct.201601942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Syed Naseer
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine (CSIR); Srinagar 190005, Jammu and Kashmir India
| | - Khursheed A. Bhat
- Bioorganic Chemistry Division Indian Institute of Integrative Medicine (CSIR); Srinagar 190005, Jammu and Kashmir India
| | - Masroor Qadri
- Microbial Biotechnology Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu 180 001 India
| | - Syed Riyaz-Ul-Hassan
- Microbial Biotechnology Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu 180 001 India
| | - Fayaz A. Malik
- Cancer pharmacology Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu 180 001 India
| | - Mohammad A. Khuroo
- Department of Chemistry; University of Kashmir; Srinagar 190006, Jammu and Kashmir India, Institute's publication No. IIIM/1962/2016
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Dar BA, Lone SH, Shah WA, Bhat KA. LC-MS Guided Isolation of Bioactive Principles from Iris hookeriana and Bioevaluation of Isolates for Antimicrobial and Antioxidant Activities. Drug Res (Stuttg) 2016; 66:427-31. [PMID: 27281447 DOI: 10.1055/s-0042-108337] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The genus Iris is diverse both in the abundance of secondary metabolities as well as the biological activities. The rhizomes of Iris hookeriana exhibit significant anthelminthic activity against gastrointestinal nematodes of sheep. Although Iris hookeriana has been a subject of the study of so many phytochemical studies, yet we report some constituents for the first time from this plant using a different isolation approach. This manuscript presents the isolation, antimicrobial and antioxidant evaluation of bioactive principles from Iris hookeriana. LC-MS guided isolation technique was applied for the separation of target constituents. The isolates were characterised by spectral techniques and subjected to antioxidant evaluation by DPPH assay. Four compounds; resveratrol, resveratroloside, junipeginin C and isorhamnetin-3-O-neohesperidoside were isolated for the first time along with 3 known compounds viz piceid, irigenin and iridin from I. hookeriana using this approach. The antioxidant activity screening of the isolates revealed that all the 4 constituents isolated for the first time, have strong antioxidant potential with IC50 of 14.0 µg/ml (resveratroloside), 19.7 µg/ml (junipeginen C), 12.8 µg/ml (resveratrol) and 19.8 µg/ml (isorhamnetin-3-O-neohesperodoside). So it can be safely concluded that LC-MS guided isolation of chemical compounds from Iris hookeriana has furnished 4 antioxidant constituents. Thus Iris hookeriana can act as as a good source of wonder molecule resveratrol and its 2 glycosides, resveratrolside and piceid which upon hydrolysis can be converted into the parent drug resveratrol.
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Affiliation(s)
- B A Dar
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar, Jammu and Kashmir, India
| | - S H Lone
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar, Jammu and Kashmir, India
| | - W A Shah
- Department of Chemistry, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - K A Bhat
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar, Jammu and Kashmir, India
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Lone SH, Bhat KA, Khuroo MA. Arglabin: From isolation to antitumor evaluation. Chem Biol Interact 2015; 240:180-98. [DOI: 10.1016/j.cbi.2015.08.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/05/2015] [Accepted: 08/25/2015] [Indexed: 01/03/2023]
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Naseer S, Lone SH, Lone JA, Khuroo MA, Bhat KA. LC–MS guided isolation, quantification and antioxidant evaluation of bioactive principles from Epimedium elatum. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 989:62-70. [DOI: 10.1016/j.jchromb.2015.02.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 02/07/2015] [Accepted: 02/27/2015] [Indexed: 10/23/2022]
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Lone SH, Bhat KA. Phytosterols as precursors for the synthesis of aromatase inhibitors: Hemisynthesis of testololactone and testolactone. Steroids 2015; 96:164-8. [PMID: 25697056 DOI: 10.1016/j.steroids.2015.02.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 01/13/2015] [Accepted: 02/09/2015] [Indexed: 12/31/2022]
Abstract
Using β-sitosterol and stigmasterol as precursor materials, a concise and efficient hemisynthesis of aromatase inhibitors: testololactone and testolactone was accomplished in a well-established reaction scheme. It involves highly effective Oppaneur oxidation of both β-sitosterol as well as stigmasterol to generate the required enone moiety in ring 'A' of the desired steroid system. The Oppaneur oxidation products of both β-sitosterol and stigmasterol were then subjected to oxidative cleavage of the side chain to produce 4-androstene-3,17-dione. Baeyer-Villiger oxidation of 4-androstene-3,17-dione using m-CPBA yielded testololactone. Dehydrogenation of 4-androstene-3,17-dione using phenylselenyl chloride in ethyl acetate followed by selenoxide elimination with H2O2 in dichloromethane furnished androstenedienone. Baeyer-Villiger oxidation of the resulting androstenedienone yielded the desired testolactone (overall yield 33%). This expeditious reaction scheme may be exploited for the bulk production of aromatase inhibitors (especially testolactone marketed under the brand name Teslac) from the most abundant and naturally occurring phytosterols like β-sitosterol.
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Affiliation(s)
- Shabir H Lone
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar, 190005 Jammu and Kashmir, India
| | - Khursheed A Bhat
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar, 190005 Jammu and Kashmir, India.
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Lone SH, Bhat KA, Bhat HM, Majeed R, Anand R, Hamid A, Khuroo MA. Essential oil composition of Senecio graciliflorus DC: comparative analysis of different parts and evaluation of antioxidant and cytotoxic activities. Phytomedicine 2014; 21:919-925. [PMID: 24629598 DOI: 10.1016/j.phymed.2014.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/04/2013] [Accepted: 01/30/2014] [Indexed: 06/03/2023]
Abstract
The essential oil of different parts of Senecio graciliflorus DC was obtained by hydrodistillation and analysed by GC-FID and GC-MS for the first time. A total of 17, 20, 19 and 17 constituents were identified comprising 99.90, 95.50, 98.93 and 95.96% of the essential oil of flower, leaf, stem and root parts of Senecio graciliflorus respectively. Monoterpene hydrocarbons predominated in the essential oil with 85.28% in flower, 57.53% in leaf, 67.74% in stem and 64.98% in root oil. α-pinene, cis-ocimene, 1,2,3-trimethylcyclohexane and β-pinene were the major constituents of the essential oil. The flower essential oil exhibited a strong antioxidant potential displaying IC50 values of 21.6±0.6 and 26.0±1.0μg/ml in DPPH and hydroxyl radical assays respectively. On the other hand the essential oil of flower and root displayed highest cytotoxicity against lung (A-549) cancer cell lines (IC50=19.1±0.9 and 21.3±1.1μg/ml respectively. This study which represents the first report of the essential oil composition and bioevaluation of Senecio graciliflorus, can serve as a new source of cytotoxic and antioxidant activity.
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Affiliation(s)
- Shabir H Lone
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar 190005, Jammu and Kashmir, India
| | - Khursheed A Bhat
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar 190005, Jammu and Kashmir, India.
| | - Haroon M Bhat
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar 190005, Jammu and Kashmir, India
| | - Rabiya Majeed
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine (CSIR), Jammu 180001, Jammu and Kashmir, India
| | - Rajneesh Anand
- Instrumentation Division, Indian Institute of Integrative Medicine (CSIR), Jammu 180001, Jammu and Kashmir, India
| | - Abid Hamid
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine (CSIR), Jammu 180001, Jammu and Kashmir, India
| | - Mohd A Khuroo
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
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Sofi SN, Shakeel-u-Rehman, Qazi PH, Lone SH, Bhat HM, Bhat KA. ISOLATION, IDENTIFICATION, AND SIMULTANEOUS QUANTIFICATION OF FIVE MAJOR FLAVONOIDS IN EPIMEDIUM ELATUM BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.765465] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shahnawaz N. Sofi
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
| | - Shakeel-u-Rehman
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
| | - Parvaiz H. Qazi
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
| | - Shabir H. Lone
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
| | - Haroon M. Bhat
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
| | - Khursheed A. Bhat
- a Bioorganic Chemistry Division , Indian Institute of Integrative Medicine (CSIR) SanatNagar , Srinagar , India
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Lone SH, Bhat KA, Majeed R, Hamid A, Khuroo MA. Click chemistry inspired facile synthesis and bioevaluation of novel triazolyl analogs of Ludartin. Bioorg Med Chem Lett 2014; 24:1047-51. [DOI: 10.1016/j.bmcl.2014.01.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 12/30/2013] [Accepted: 01/08/2014] [Indexed: 12/26/2022]
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Lone SH, Bhat KA, Naseer S, Rather RA, Khuroo MA, Tasduq SA. Isolation, cytotoxicity evaluation and HPLC-quantification of the chemical constituents from Artemisia amygdalina Decne. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 940:135-41. [PMID: 24148842 DOI: 10.1016/j.jchromb.2013.09.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 09/16/2013] [Accepted: 09/20/2013] [Indexed: 01/08/2023]
Abstract
The hexane extracts of both shoot and root parts of Artemisia amygdalina Decne displayed potent cytotoxic effects. Phytochemical analysis of these active extracts led to the isolation of six cytotoxic constituents, viz., Ergostadien-3β-ol (1), ludartin (2), 5-hydroxy-6,7,3',4'-tetramethoxyflavone (3) (from shoot) and trans-matricaria ester (4), diacetylenic spiroenol ether (5) and cis-matricaria ester (6) (from root) for the first time from this plant. The constituents were identified using spectral techniques in the light of literature. Sulphorhodamine B cytotoxicity screening of the isolated constituents was carried out against four human cancer cell lines including Lung (A-549), Leukaemia (THP-1), Prostate (PC-3) and Colon (HCT-116) cell lines. Ludartin (2) exhibited the highest cytotoxicity with IC50 values of 7.4μM, 3.1μM, 7.5μM and 6.9μM against Lung (A-549), Leukaemia (THP-1), Prostate (PC-3), Colon (HCT-116) cancer cell lines respectively. To test against in vitro skin cancer models [human dermal fibroblasts (CRL-1635)] all the isolates were further subjected to 3-(4,5-Dimethylthiazol-yl)-diphenyl tetrazolium bromide (MTT) cytotoxicity screening. Ludartin (2) being highly cytotoxic was again evaluated against mouse melanoma (B16F10) and human epidermoid carcinoma (A-431) cells by MTT assay displaying IC50 values of 6.6μM and 19.0μM respectively. Finally a simple and reliable HPLC method was developed (RP-HPLC-DAD) and validated for the simultaneous quantification of these cytotoxic constituents in A. amygdalina Decne. Excellent specificity and high linearity for all the standard calibration curves having regression coefficients of the respective linear equations in the range of 0.9962-0.9999 was observed. Relative recovery rates varied between 98.37±0.90 and 105.15±1.74 with relative standard deviation less than 4%. Based on our results, the developed method features good quantification parameters, accuracy, precision and can serve as effective quality control method for standardisation of A. amygdalina Decne.
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Affiliation(s)
- Shabir H Lone
- Bioorganic Chemistry Division, Indian Institute of Integrative Medicine (CSIR), Srinagar 190005, Jammu and Kashmir, India
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Lone SH, Bhat KA, Shakeel-u-Rehman, Majeed R, Hamid A, Khuroo MA. Synthesis and biological evaluation of amino analogs of Ludartin: Potent and selective cytotoxic agents. Bioorg Med Chem Lett 2013; 23:4931-4. [DOI: 10.1016/j.bmcl.2013.06.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/12/2013] [Accepted: 06/22/2013] [Indexed: 12/22/2022]
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Rather MA, Dar BA, Dar MY, Wani BA, Shah WA, Bhat BA, Ganai BA, Bhat KA, Anand R, Qurishi MA. Chemical composition, antioxidant and antibacterial activities of the leaf essential oil of Juglans regia L. and its constituents. Phytomedicine 2012; 19:1185-1190. [PMID: 22951389 DOI: 10.1016/j.phymed.2012.07.018] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 06/27/2012] [Accepted: 07/29/2012] [Indexed: 06/01/2023]
Abstract
The essential oil from the leaves of Juglans regia L. (Juglandaceae) growing wild in Kashmir (India) was obtained by hydrodistillation and analysed by a combination of capillary GC-FID and GC-MS. A total of 38 compounds, representing 92.7% of the oil, were identified and the major components were found to be α-pinene (15.1%), β-pinene (30.5%), β-caryophyllene (15.5%) germacrene D (14.4%) and limonene (3.6%). The essential oil and the main individual constituents were screened for antibacterial activity and the essential oil evaluated for antioxidant activity. Antibacterial activity was evaluated using the disc diffusion and microdilution methods against a group of clinically significant Gram-positive (Staphylococcus epidermidis MTCC-435, Bacillus subtilis MTCC-441, Staphylococcus aureus) and Gram-negative bacteria (Proteus vulgaris MTCC-321, Pseudomonas aeruginosa MTCC-1688, Salmonella typhi, Shigella dyssenteriae, Klebsiella pneumonia and Escherichia coli). The essential oil and its major components exhibited broad spectrum inhibition against all the bacterial strains with Gram-positive being more susceptible to the oil than Gram-negative bacteria. Antioxidant activity of the oil was evaluated by the scavenging effect on DPPH (2,2-diphenyl-1-picrylhydrazyl) and hydroxyl radicals. In general, the essential oil exhibited high antioxidant activity which was comparable to the reference standards at the same dose (ascorbic acid and butylated hydroxyl toluene, BHT) with IC(50) values of 34.5 and 56.4μg/ml calculated by DPPH and hydroxyl radical scavenging assays respectively.
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Rather MA, Dar BA, Bhat KA, Shawl AS, Qurishi MA, Dar MY, Ganai BA. Mono-sesquiterpenoid Composition in the Leaves and Flowers ofSalvia moorcroftianaWall ex Benth. Growing Wild in Kashmir, India. Journal of Essential Oil Research 2011. [DOI: 10.1080/10412905.2011.9700464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shakeel-U-Rehman, Khan R, Bhat KA, Raja AF, Shawl AS, Alam MS. Isolation, characterisation and antibacterial activity studies of coumarins from Rhododendron lepidotum Wall. ex G. Don, Ericaceae. Rev bras farmacogn 2010. [DOI: 10.1590/s0102-695x2010005000037] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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