1
|
Acharya M, Gautam R, Yang S, Jo J, Maharjan A, Lee D, Ghimire NP, Min B, Kim C, Kim H, Heo Y. Evaluation of Artemisia dubia folium extract-mediated immune efficacy through developing a murine model for acute and chronic stages of atopic dermatitis. Lab Anim Res 2024; 40:13. [PMID: 38582857 PMCID: PMC10999079 DOI: 10.1186/s42826-024-00201-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/26/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024] Open
Abstract
BACKGROUND Atopic dermatitis (AD) is a biphasic type of skin inflammation characterized by a predominance of type-2 (TH2) and type-1 (TH1) helper T cell-biased immune responses at the acute and persistent chronic phases, respectively. The present study was aimed to evaluate the efficacy of Artemisia dubia folium extract (ADFE) on AD-like skin lesions through developing a murine model for acute and chronic stages of AD. To induce acute phase AD, the dorsal skin of BALB/c mice was sensitized twice a week with 1% 2, 4-dinitrochlorobenzene (DNCB), followed by challenge (twice) in the following week with 0.2% DNCB. To induce persistent chronic AD, some mice were challenged twice a week for 4 more weeks. After the second challenge, the dorsal skin was exposed to 3% ADFE (five times per week) for 2 weeks (acute phase) or 4 weeks (persistent chronic phase). RESULTS The paradigm of TH2 or TH1 predominance at the acute and chronic phase, respectively, was observed in this mouse model. During the acute phase, we observed an increased IL-4/IFN-γ ratio in splenic culture supernatants, an increased IgG1/IgG2a ratio in serum, and elevated serum IgE levels; however, the skew toward TH2 responses was diminished during the chronic stage. Compared with vehicle controls, ADFE reduced the IL-4/IFN-γ and IgG1/IgG2a ratios in acute AD, but both ratios increased during the chronic stage. CONCLUSIONS Our results suggest that ADFE concomitantly suppresses the TH2 predominant response in acute AD, as well as the TH1 predominant response in chronic AD. Thus, ADFE is a candidate therapeutic for AD.
Collapse
Affiliation(s)
- Manju Acharya
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - Ravi Gautam
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - SuJeong Yang
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - JiHun Jo
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - Anju Maharjan
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - DaEun Lee
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | | | - ByeongSun Min
- College of Pharmacy, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - ChangYul Kim
- Department of Toxicology, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Yong Heo
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea.
- Department of Toxicology, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea.
| |
Collapse
|
2
|
Rehman S, Hussain A, Ullah M, Ali E, Mojzych M, Naqvi SAR, Ali A, Ali M, Gomaa E, Ghoneim SSM, Mirza B, Ring KK, Hussain H, Rauf A, Rehman NU, Attique F. Agrobacterium-Mediated Genetic Transformation of Withania coagulans (Dunal) with rol A Genes and Its Antioxidant Potential. ACS OMEGA 2023; 8:41918-41929. [PMID: 37969994 PMCID: PMC10633884 DOI: 10.1021/acsomega.3c07069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 11/17/2023]
Abstract
In ancient times, Withania coagulans Dunal was used as a therapeutic plant for the treatment of several diseases. This report aims to examine the effect of Agrobacterium tumefactions-mediated transformation of W. coagulans with the rolA gene to enhance secondary metabolite production, antioxidant activity, and anticancer activity of transformed tissues. Before transgenic plant production, the authors designed an efficient methodology for in vitro transformation. In this study, leaf explants were cultured on Murashage and Skoog (MS) media containing different amounts of naphthalene acetic acid (NAA) and benzyl adenine (BA). The best performance for inducing embryogenic callus was in MS medium containing 4 μM NAA and 6.0 μM BA, while the best results for shooting (100%) were obtained at 8 μM benzyl adenine. On the other hand, direct shooting was attained by subculturing leaves on MS medium supplemented with 8 μM benzyl adenine. Prolonged shoots showed excellent in vitro rooting results (80%) with 12 μM indole-3-butyric acid (IBA). The samples were precultivated for 3 days and were followed by 48 h infection with A. tumefaciens strain GV3101 having pCV002. Then, a vector expressed the rol A gene of strain Agrobacterium rhizogenes. Furthermore, three independent transgenic shoot lines and one callus line (T2) were produced and exhibited stable integration of transgene rol A genes, as revealed by PCR analysis. Transgenic strains showed a significant increase in antioxidant potential as compared to untransformed plants. Additionally, LC-MS analysis showed that the transformed strains have a higher withanolide content as compared to untransformed ones. Moreover, the reduced proliferation of prostate cancer cells was observed after treatment with extracts of transgenic plants. Furthermore, these transformed plants exhibited superior antioxidant capability and higher withanolide content than untransformed ones. In conclusion, the reported data can be used to select withanolide-rich germplasm from transformed cell cultures.
Collapse
Affiliation(s)
- Samiya Rehman
- Department
of Biochemistry, University of Okara, Okara, Punjab 56300, Pakistan
| | - Amjad Hussain
- Institiute
of Chemistry, University of Okara, Okara, Punjab 56300, Pakistan
| | - Munzer Ullah
- Department
of Biochemistry, University of Okara, Okara, Punjab 56300, Pakistan
| | - Enas Ali
- Faculty
of Engineering and Technology, Future University
in Egypt, New Cairo 11835, Egypt
| | - Mariusz Mojzych
- Department
of Chemistry, Siedlce University of Natural
Sciences and Humanities ul. 3 Maja 54, Siedlce 08-110, Poland
- Faculty
of Health Sciences, Collegium Medicum, The
Mazovian Academy in Plock, Plac Dabrowskiego 2, 09-402 Płock, Poland
| | - Syed Ali Raza Naqvi
- Department
of Chemistry, Government College University, Faisalabad 38040, Pakistan
| | - Akbar Ali
- Department
of Chemistry, Government College University, Faisalabad 38040, Pakistan
| | - Meher Ali
- Department
of Chemistry, Karakoram International University, Gilgit 15100, Pakistan
| | - Ehab Gomaa
- Department
of Civil Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Sherif S. M. Ghoneim
- Department
of Electrical Engineering, College of Engineering, Taif University, P.O. BOX 11099, Taif 21944, Saudi Arabia
| | - Bushra Mirza
- Department
of Biochemistry, Quaid-e-Azam University, Islamabad 44000, Pakistan
| | - Ken Keefover Ring
- Department
of Botany and Geography, University of Wisconsin,
Madison, Madison, Wisconsin 53706, United States
| | - Hidayat Hussain
- Department
of Bioorganic Chemistry, Leibniz Institute
of Plant Biochemistry, Weinberg 3, Halle (Saale) D-06120, Germany
| | - Abdur Rauf
- Department
of Chemistry, University of Swabi, Anbar Khyber Pakhtunkhwa, Swabi 94640, Pakistan
| | - Najeeb Ur Rehman
- Natural
& Medical Sciences Research Center, University of Nizwa, P.O Box 33,
Postal Code Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Faisal Attique
- Institiute
of Chemistry, University of Okara, Okara, Punjab 56300, Pakistan
| |
Collapse
|
3
|
Sharifi-Rad J, Herrera-Bravo J, Semwal P, Painuli S, Badoni H, Ezzat SM, Farid MM, Merghany RM, Aborehab NM, Salem MA, Sen S, Acharya K, Lapava N, Martorell M, Tynybekov B, Calina D, Cho WC. Artemisia spp.: An Update on Its Chemical Composition, Pharmacological and Toxicological Profiles. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5628601. [PMID: 36105486 PMCID: PMC9467740 DOI: 10.1155/2022/5628601] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/07/2022] [Accepted: 08/12/2022] [Indexed: 12/11/2022]
Abstract
Artemisia plants are traditional and ethnopharmacologically used to treat several diseases and in addition in food, spices, and beverages. The genus is widely distributed in all continents except the Antarctica, and traditional medicine has been used as antimalarial, antioxidant, anticancer, antinociceptive, anti-inflammatory, and antiviral agents. This review is aimed at systematizing scientific data on the geographical distribution, chemical composition, and pharmacological and toxicological profiles of the Artemisia genus. Data from the literature on Artemisia plants were taken using electronic databases such as PubMed/MEDLINE, Scopus, and Web of Science. Selected papers for this updated study included data about phytochemicals, preclinical pharmacological experimental studies with molecular mechanisms included, clinical studies, and toxicological and safety data. In addition, ancient texts and books were consulted. The essential oils and phytochemicals of the Artemisia genus have reported important biological activities, among them the artemisinin, a sesquiterpene lactone, with antimalarial activity. Artemisia absinthium L. is one of the most famous Artemisia spp. due to its use in the production of the absinthe drink which is restricted in most countries because of neurotoxicity. The analyzed studies confirmed that Artemisia plants have many traditional and pharmacological applications. However, scientific data are limited to clinical and toxicological research. Therefore, further research is needed on these aspects to understand the full therapeutic potential and molecular pharmacological mechanisms of this medicinal species.
Collapse
Affiliation(s)
| | - Jesús Herrera-Bravo
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Chile
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile
| | - Prabhakar Semwal
- Department of Life Sciences, Graphic Era Deemed To Be University, Dehradun, 248002, Uttarakhand, India
| | - Sakshi Painuli
- Uttarakhand Council for Biotechnology (UCB), Prem Nagar, Dehradun, 248007 Uttarakhand, India
| | - Himani Badoni
- Department of Biotechnology, School of Applied and Life Sciences, Uttaranchal University, Prem Nagar, Dehradun, 248007, Uttarakhand, India
| | - Shahira M. Ezzat
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza 12451, Egypt
| | - Mai M. Farid
- Department of Phytochemistry and Plant Systematics, National Research Centre, 33 El Bohouth St., Dokki, P. O. 12622, Giza, Egypt
| | - Rana M. Merghany
- Pharmacognosy Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (NRC), 33 El-Bohouth street, Dokki, Giza, Egypt
| | - Nora M. Aborehab
- Department of Biochemistry, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza 12451, Egypt
| | - Mohamed A. Salem
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Gamal Abd El Nasr St., Shibin El Kom, 32511 Menoufia, Egypt
| | - Surjit Sen
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India
- Department of Botany, Fakir Chand College, Diamond Harbour, West Bengal 743331, India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India
| | - Natallia Lapava
- Medicine Standardization Department, Vitebsk State Medical University, Belarus
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, And Centre for Healthy Living, University of Concepción, Concepción, Chile
- Universidad de Concepción, Unidad de Desarrollo Tecnológico (UDT), 4070386 Concepción, Chile
| | - Bekzat Tynybekov
- Department of Biodiversity of Bioresources, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong
| |
Collapse
|
4
|
Rubnawaz S, Kayani WK, Akhtar N, Mahmood R, Khan A, Okla MK, Alamri SA, Alaraidh IA, Alwasel YA, Mirza B. Polyphenol Rich Ajuga bracteosa Transgenic Regenerants Display Better Pharmacological Potential. Molecules 2021; 26:4874. [PMID: 34443462 PMCID: PMC8399588 DOI: 10.3390/molecules26164874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 12/26/2022] Open
Abstract
Ajuga bracteosa Wall. ex Benth. is an endangered medicinal herb traditionally used against different ailments. The present study aimed to create new insight into the fundamental mechanisms of genetic transformation and the biological activities of this plant. We transformed the A. bracteosa plant with rol genes of Agrobacterium rhizogenes and raised the regenerants from the hairy roots. These transgenic regenerants were screened for in vitro antioxidant activities, a range of in vivo assays, elemental analysis, polyphenol content, and different phytochemicals found through HPLC. Among 18 polyphenolic standards, kaempferol was most abundant in all transgenic lines. Furthermore, transgenic line 3 (ABRL3) showed maximum phenolics and flavonoids content among all tested plant extracts. ABRL3 also demonstrated the highest total antioxidant capacity (8.16 ± 1 μg AAE/mg), total reducing power, (6.60 ± 1.17 μg AAE/mg), DPPH activity (IC50 = 59.5 ± 0.8 μg/mL), hydroxyl ion scavenging (IC50 = 122.5 ± 0.90 μg/mL), and iron-chelating power (IC50 = 154.8 ± 2 μg/mL). Moreover, transformed plant extracts produced significant analgesic, anti-inflammatory, anticoagulant, and antidepressant activities in BALB/c mice models. In conclusion, transgenic regenerants of A. bracteosa pose better antioxidant and pharmacological properties under the effect of rol genes as compared to wild-type plants.
Collapse
Affiliation(s)
- Samina Rubnawaz
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Waqas Khan Kayani
- Department of Biotechnology, Faculty of Sciences, University of Kotli, Azad Jammu and Kashmir 11100, Pakistan;
| | - Nosheen Akhtar
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi 46000, Pakistan;
| | - Rashid Mahmood
- Drugs Control & Traditional Medicines Division, National Institute of Health, Islamabad 45320, Pakistan;
| | - Asif Khan
- Institute of Biological Sciences, Faculty of Sciences, University of Malaya, Kuala Lumper 50603, Malaysia;
| | - Mohammad K. Okla
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.O.); (S.A.A.); (I.A.A.); (Y.A.A.)
| | - Saud A. Alamri
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.O.); (S.A.A.); (I.A.A.); (Y.A.A.)
| | - Ibrahim A. Alaraidh
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.O.); (S.A.A.); (I.A.A.); (Y.A.A.)
| | - Yasmeen A. Alwasel
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.K.O.); (S.A.A.); (I.A.A.); (Y.A.A.)
| | - Bushra Mirza
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| |
Collapse
|
5
|
Nigam M, Atanassova M, Mishra AP, Pezzani R, Devkota HP, Plygun S, Salehi B, Setzer WN, Sharifi-Rad J. Bioactive Compounds and Health Benefits ofArtemisiaSpecies. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19850354] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Artemisia L. is a genus of small herbs and shrubs found in northern temperate regions. It belongs to the important family Asteraceae, one of the most numerous plant groupings, which comprises about 1000 genera and over 20000 species. Artemisia has a broad spectrum of bioactivity, owing to the presence of several active ingredients or secondary metabolites, which work through various modes of action. It has widespread pharmacological activities and has been used as traditional medicine since ancient times as an anthelmintic, antispasmodic, antirheumatic, and antibacterial agent and for the treatment of malaria, hepatitis, cancer, inflammation, and menstrual-related disorders. This review comprises the updated information about the ethnomedical uses and health benefits of various Artemisia spp. and general information about bioactive compounds and free radicals.
Collapse
Affiliation(s)
- Manisha Nigam
- Department of Biochemistry, H. N. B. Garhwal University, Srinagar, India
| | - Maria Atanassova
- Scientific Consulting, Chemical Engineering, UCTM, Sofia, Bulgaria
| | - Abhay P. Mishra
- Department of Pharmaceutical Chemistry, H. N. B. Garhwal University, Srinagar, India
| | - Raffaele Pezzani
- OU Endocrinology, Department of Medicine (DIMED), University of Padova, Italy
- AIROB, Associazione Italiana per la Ricerca Oncologica di Base, Padova, Italy
| | | | - Sergey Plygun
- All-Russian Research Institute of Phytopathology, Moscow Region, Russia
- Laboratory of Biocontrol and Antimicrobial Resistance, Orel State University named after I.S. Turgenev, Orel, Russia
- European Society of Clinical Microbiology and Infectious Diseases, Basel, Switzerland
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical SciencesBam, Iran
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, AL, USA
- Aromatic Plant Research Center, Lehi, UT, USA
| | - Javad Sharifi-Rad
- Food Safety Research Center (salt), Semnan University of Medical Sciences, Iran
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, MB, Canada
| |
Collapse
|
6
|
Zafar S, Dilshad E, Ismail H, Rizvi CB, Mirza B. Rol genes enhance content of artemisinin and other secondary metabolites in Shennong hybrid of Artemisia annua. CHINESE HERBAL MEDICINES 2019. [DOI: 10.1016/j.chmed.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
7
|
Ali M, Abbasi BH, Ahmad N, Khan H, Ali GS. Strategies to enhance biologically active-secondary metabolites in cell cultures of Artemisia - current trends. Crit Rev Biotechnol 2017; 37:833-851. [PMID: 28049347 DOI: 10.1080/07388551.2016.1261082] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The genus Artemisia has been utilized worldwide due to its immense potential for protection against various diseases, especially malaria. Artemisia absinthium, previously renowned for its utilization in the popular beverage absinthe, is gaining resurgence due to its extensive pharmacological activities. Like A. annua, this species exhibits strong biological activities like antimalarial, anticancer and antioxidant. Although artemisinin was found to be the major metabolite for its antimalarial effects, several flavonoids and terpenoids are considered to possess biological activities when used alone and also to synergistically boost the bioavailability of artemisinin. However, due to the limited quantities of these metabolites in wild plants, in vitro cultures were established and strategies have been adopted to enhance medicinally important secondary metabolites in these cultures. This review elaborates on the traditional medicinal uses of Artemisia species and explains current trends to establish cell cultures of A. annua and A. absinthium for enhanced production of medicinally important secondary metabolites.
Collapse
Affiliation(s)
- Mohammad Ali
- a Center for Biotechnology and Microbiology , Department of Biotechnology, University of Swat , Pakistan.,b Department of Biotechnology, Faculty of Biological Sciences , Quaid-i-Azam University Islamabad , Pakistan
| | - Bilal Haider Abbasi
- b Department of Biotechnology, Faculty of Biological Sciences , Quaid-i-Azam University Islamabad , Pakistan
| | - Nisar Ahmad
- a Center for Biotechnology and Microbiology , Department of Biotechnology, University of Swat , Pakistan
| | - Haji Khan
- a Center for Biotechnology and Microbiology , Department of Biotechnology, University of Swat , Pakistan
| | - Gul Shad Ali
- c Mid-Florida Research and Education Center and Department of Plant Pathology , University of Florida/Institute of Food and Agricultural Sciences , Apopka , FL , USA
| |
Collapse
|
8
|
Dilshad E, Ismail H, Haq IU, Cusido RM, Palazon J, Ramirez-Estrada K, Mirza B. Rol genes enhance the biosynthesis of antioxidants in Artemisia carvifolia Buch. BMC PLANT BIOLOGY 2016; 16:125. [PMID: 27251864 PMCID: PMC4890517 DOI: 10.1186/s12870-016-0811-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/17/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND The secondary metabolites of the Artemisia genus are well known for their important therapeutic properties. This genus is one of the valuable sources of flavonoids and other polyphenols, but due to the low contents of these important metabolites, there is a need to either enhance their concentration in the original plant or seek alternative sources for them. The aim of the current study was to detect and enhance the yield of antioxidant compounds of Artemisia carvifolia Buch. HPLC analysis was performed to detect the antioxidants. With the aim of increasing flavonoid content, Rol gene transgenics of A. carvifolia were established. Two genes of the flavonoid biosynthetic pathway, phenylalanine ammonia-lyase and chalcone synthase, were studied by real time qPCR. Antioxidant potential was determined by performing different antioxidant assays. RESULTS HPLC analysis of wild-type A. carvifolia revealed the presence of flavonoids such as caffeic acid (30 μg/g DW), quercetin (10 μg/g DW), isoquercetin (400 μg/g DW) and rutin (300 μg/g DW). Compared to the untransformed plants, flavonoid levels increased 1.9-6-fold and 1.6-4-fold in rol B and rol C transgenics, respectively. RT qPCR analysis showed a variable expression of the flavonoid biosynthetic genes, including those encoding phenylalanine ammonia-lyase and chalcone synthase, which were found to be relatively more expressed in transformed than wild-type plants, thus correlating with the metabolite concentration. Methanolic extracts of transgenics showed higher antioxidant capacity, reducing power, and protection against free radical-induced DNA damage. Among the transgenic plants, those harboring rol B were slightly more active than the rol C-transformants. CONCLUSION As well as demonstrating the effectiveness of rol genes in inducing plant secondary metabolism, this study provides insight into the molecular dynamics of the flavonoid accumulation pattern, which correlated with the expression of biosynthetic genes.
Collapse
Affiliation(s)
- Erum Dilshad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Hammad Ismail
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ihsan-Ul- Haq
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Rosa Maria Cusido
- Laboratorio de Fisiologia Vegetal, Facultad de Farmacia, Universidad de Barcelona, Barcelona, Spain
| | - Javier Palazon
- Laboratorio de Fisiologia Vegetal, Facultad de Farmacia, Universidad de Barcelona, Barcelona, Spain
| | - Karla Ramirez-Estrada
- Laboratorio de Fisiologia Vegetal, Facultad de Farmacia, Universidad de Barcelona, Barcelona, Spain
| | - Bushra Mirza
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
| |
Collapse
|
9
|
Effect of Rol Genes on Polyphenols Biosynthesis in Artemisia annua and Their Effect on Antioxidant and Cytotoxic Potential of the Plant. Appl Biochem Biotechnol 2016; 179:1456-68. [DOI: 10.1007/s12010-016-2077-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 04/03/2016] [Indexed: 10/21/2022]
|