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Rabie O, El-Nashar HAS, George MY, Majrashi TA, Al-Warhi T, Hassan FE, Eldehna WM, Mostafa NM. Phytochemical profiling and neuroprotective activity of Callistemon subulatus leaves against cyclophosphamide-induced chemobrain. Biomed Pharmacother 2023; 167:115596. [PMID: 37797461 DOI: 10.1016/j.biopha.2023.115596] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023] Open
Abstract
Cyclophosphamide (CPA) is a chemotherapeutic drug used for various types of cancers. However, patients receiving CPA for long periods suffer cognitive impairment associated with difficulties in learning, decreased concentration, and impaired memory. Chemotherapy-induced cognitive impairment, known as chemobrain, has been attributed to enhanced oxidative stress and inflammatory response. The current study aimed to identify the phytoconstituents of Callistemon subulatus extract (CSE) using HPLC-ESI/MS-MS analysis and evaluate its neuroprotective activity against CPA-induced chemobrain in rats. Fourteen compounds were identified following HPLC analysis including, five phlorglucinols, four flavonol glycosides, a triterpene, and a phenolic acid. Forty rats were divided into five groups treated for ten days as follows; group I (control group), group II received CPA (200 mg/kg, i.p.) on the 7th day, groups III and IV received CSE (200 and 400 mg/kg respectively, orally) for ten days and CPA (200 mg/kg, i.p.) on the 7th day, and group V received only CSE (400 mg/kg, orally) for ten days. The administration of CSE effectively ameliorated the deleterious effects of CPA on spatial and short-term memories, as evidenced by behavioral tests, Y-maze and passive avoidance. Such findings were further confirmed by histological examination. In addition, CSE counteracted the effect of CPA on hippocampal acetylcholinesterase (AChE) activity enhancing the level of acetylcholine. Owing to the CSE antioxidant properties, it hindered the CPA-induced redox imbalance, which is represented by decreased catalase and reduced glutathione levels, as well as enhanced lipid peroxidation. Therefore, CSE may be a promising natural candidate for protection against CPA-induced chemobrain in cancer patients.
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Affiliation(s)
- Omyma Rabie
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt
| | - Heba A S El-Nashar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt
| | - Mina Y George
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566 Cairo, Egypt
| | - Taghreed A Majrashi
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Asir 61421, Saudi Arabia
| | - Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Fatma E Hassan
- Department of Physiology, General Medicine Practice Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia; Medical Physiology Department, Kasr Alainy, Faculty of Medicine, Cairo University, Giza 11562, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33516, Kafrelsheikh, Egypt.
| | - Nada M Mostafa
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt.
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Kumar R, Kushwaha PP, Singh AK, Kumar S, Pandey AK. Anti-proliferative, apoptosis inducing, and antioxidant potential of Callistemon lanceolatus bark extracts: an in vitro and in silico study. Med Oncol 2023; 40:169. [PMID: 37156972 DOI: 10.1007/s12032-023-02035-4] [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: 03/18/2023] [Accepted: 04/19/2023] [Indexed: 05/10/2023]
Abstract
The present study reports anticancer and antioxidant activities of Callistemon lanceolatus bark extracts. Anticancer activity was studied against MDA-MB-231 cells. Antioxidant assessment of the chloroform and methanol extracts showed considerable free radical scavenging, metal ion chelating, and reducing power potential. Chloroform extract exhibited potent inhibition of cancer cell proliferation in MTT assay (IC50 9.6 μg/ml) and promoted programmed cell death. Reactive oxygen species (ROS) generation, mitochondria membrane potential (MMP) disruption ability, and nuclear morphology changes were studied using H2-DCFDA, JC-1, and Hoechst dyes, respectively, using confocal microscopy. Apoptotic cells exhibited fragmented nuclei, increased ROS generation, and altered MMP in dose- and time-dependent manner. Chloroform extract upregulated the BAX-1 and CASP3 mRNA expression coupled with downregulation of BCL-2 gene. Further, in silico docking of phytochemicals present in C. lanceolatus with anti-apoptotic Bcl-2 protein endorsed apoptosis by its inhibition and thus corroborated the experimental findings. Obatoclax, a known inhibitor of Bcl-2 was used as a reference compounds.
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Affiliation(s)
- Ramesh Kumar
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj), 211002, Uttar Pradesh, India
- Department of Biochemistry, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Prem Prakash Kushwaha
- Department of Biochemistry, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Atul Kumar Singh
- Department of Biochemistry, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Shashank Kumar
- Department of Biochemistry, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Abhay Kumar Pandey
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj), 211002, Uttar Pradesh, India.
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Lowenthal R, Taylor M, Gidden JA, Heflin B, Lay JO, Avaritt N, Tackett AJ, Urbaniak A. The mycelium of the Trametes versicolor synn. Coriolus versicolor (Turkey tail mushroom) exhibit anti-melanoma activity in vitro. Biomed Pharmacother 2023; 161:114424. [PMID: 36827712 PMCID: PMC10147383 DOI: 10.1016/j.biopha.2023.114424] [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: 12/06/2022] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Abstract
Melanoma is one of the most aggressive forms of skin cancer and is characterized by high metastatic potential. Despite improvements in early diagnosis and treatment, the mortality rate among metastatic melanoma patients continues to represent a significant clinical challenge. Therefore, it is imperative that we search for new forms of treatment. Trametes versicolor is a mushroom commonly used in Chinese traditional medicine due to its numerous beneficial properties. In the present work, we demonstrate T. versicolor fruiting body and mycelium ethanol extracts exhibit potent cytotoxic activity towards A375 (IC50 = 663.3 and 114.5 µg/mL respectively) and SK-MEL-5 (IC50 = 358.4 and 88.6 µg/mL respectively) human melanoma cell lines. Further studies revealed that T. versicolor mycelium extract induced apoptotic cell death and poly (ADP-ribose) polymerase cleavage, upregulated the expression of autophagy-associated marker LC3-II, increased the presentation of major histocompatibility complex II and expression of programmed death-ligand receptor, and inhibited cell migration in SK-MEL-5 cells. Therefore, our present findings highlight the therapeutic potential of T. versicolor mycelium extract for the treatment of melanoma and merit further study.
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Affiliation(s)
- Rocky Lowenthal
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Megan Taylor
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Jennifer A Gidden
- Arkansas Statewide MS Facility, University of Arkansas, Fayetteville 72701, AR, United States
| | - Billie Heflin
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Jackson O Lay
- Arkansas Statewide MS Facility, University of Arkansas, Fayetteville 72701, AR, United States; Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville 72701, AR, United States
| | - Nathan Avaritt
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Alan J Tackett
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States.
| | - Alicja Urbaniak
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States.
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Rathore R, Rai N. Pharmacological action and underlying molecular mechanism of Callistemon: A genus of promising medicinal herbs. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:154013. [PMID: 35279614 DOI: 10.1016/j.phymed.2022.154013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 01/31/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The genus Callistemon belongs to a group of medically significant plants which have found tremendous use in traditional medicine across the globe. They are reported for anti-cancer, neuroprotective, anti-inflammatory, antioxidant, anti-microbial, and many other significant medicinal attributes. However, the current use of this genus is limited mainly to ornamental and recreational purposes. Recent studies have reported several novel compounds like phloroglucinol derivatives, terpenes, phenolics, etc., from Callistemon spp., which have great medical significance. Further, there is a surge of recent studies reporting novel pharmacological properties of Callistemon. The number of review studies discussing the underlying molecular mechanism behind the pharmacological action of Callistemon is quite limited. METHODS The literature search for studies published from 1991 to 2021 using Google scholar and PubMed were selected. The review documented relevant literature focused on Callistemon spp exhibiting significant pharmacological effects. RESULTS This review deals with the pharmacological properties of Callistemon and the underlying molecular mechanism responsible for protective effect in several pathophysiological conditions. This study updated the current information regarding the medicinal importance of Callistemon spp. for research and the public community. DISCUSSION AND CONCLUSIONS The preliminary studies, interrogating pharmacological properties of Callistemon spp., hold great promise and demand further research to decipher the mode of action. More and more research are needed in this direction to explore the full potential of the genus Callistemon as a medicinal herb.
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Affiliation(s)
- Rinu Rathore
- Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India
| | - Nitish Rai
- Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India.
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Xu XY, Choi HS, Park SY, Kim JK, Seo KH, Kim H, Kim YJ. Hibiscus syriacus L. cultivated in callus culture exerts cytotoxicity in colorectal cancer via Notch signaling-mediated cholesterol biosynthesis suppression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 95:153870. [PMID: 34896899 DOI: 10.1016/j.phymed.2021.153870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/25/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND In our previous study, Hibiscus syriacus leaf tissue was successfully cultivated in an optimized callus culture system, and subsequently extracted with 70% ethanol to prepare H. syriacus callus extract (HCE). The previous study suggested that the callus culture is useful method for obtaining the anti-inflammatory ingredients from H. syriacus. PURPOSE In the present study, we aimed to investigate the effect of HCE on the colorectal cancer (CRC) and its underlying mechanism of action using HT-29 cells and thymus-deficient mice bearing HT-29 xenografts. METHODS The cytotoxicity of HCE was investigated by MTT and colonies formation. The underling mechanism by which HCE regulates specific proteins in HT-29 cells was evaluated by the proteomic analysis. These putative proteins were validated using qRT-PCR and immunoblotting analyses. Subsequently, oral administration of HCE for 15 days further evaluating the anti-tumor activity by mRNA and protein expressions levels and tumor histopathology. RESULTS Results of cell viability and colony formation assays revealed a significant cytotoxic effect of HCE at doses below 100 μg/ml against HT-29 cells, but not against normal cells. Through differential protein expression analysis, signaling pathways underlying anti-CRC activity were predicted in HCE-treated HT-29 cells: Notch signaling, cholesterol biosynthesis, and AMPK signaling pathways. qRT-PCR and immunoblotting analyses indicated that the cytotoxic effect of HCE against HT-29 cells might be associated with the suppression of Notch signaling, which positively contributes to cholesterol biosynthesis. To our knowledge, this can be presented as the first study to demonstrate the detailed relationship between Notch signaling and cholesterol-AMPK signaling. Our in vivo result further corroborated the in vitro finding that 100 and 200 mg/kg HCE for 15 days exerts its anti-cancer effect via Notch signaling-mediated suppression of cholesterol synthesis without systemic toxicity. CONCLUSION Our findings can serve as a starting point for developing the novel anti-CRC agent using HCE, as a targeted medicine acting on regulating Notch signaling and cholesterol synthesis.
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Affiliation(s)
- Xing Yue Xu
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Gyeonggi, Republic of Korea
| | - Han Sol Choi
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Gyeonggi, Republic of Korea
| | | | - Jin-Kyu Kim
- Biocenter, Gyeonggido Business and Science Accelerator, Suwon 16229, Republic of Korea
| | - Kwang Hoon Seo
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Gyeonggi, Republic of Korea
| | - Hoon Kim
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Gyeonggi, Republic of Korea.
| | - Yeon-Ju Kim
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Gyeonggi, Republic of Korea.
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Joshi BC, Juyal V, Sah AN, Verma P, Mukhija M. Review On Documented Medicinal Plants Used For The Treatment Of Cancer. CURRENT TRADITIONAL MEDICINE 2021. [DOI: 10.2174/2215083807666211011125110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background:
Cancer is a frightful disease and it is the second leading cause of death worldwide. Naturally derived compounds are gaining interest of research workers as they have less toxic side effects as compared to currently used treatments such as chemotherapy. Plants are the pool of chemical compounds which provides a promising future for research on cancer.
Objective:
This review paper provides updated information gathered on medicinal plants and isolated phytoconstituents used as anticancer agents and summarises the plant extracts and their isolated chemical constituents exhibiting anticancer potential on clinical trials.
Methods:
An extensive bibliographic investigation was carried out by analysing worldwide established scientific databases like SCOPUS, PUBMED, SCIELO, ScienceDirect, Springerlink, Web of Science, Wiley, SciFinder and Google Scholar etc. In next few decades, herbal medicine may become a new epoch of medical system.
Results:
Many researches are going on medicinal plants for the treatment of cancer but it is a time to increase further experimental studies on plant extracts and their chemical constituents to find out their mechanism of action at molecular level.
Conclusion:
The article may help many researchers to start off further experimentation that might lead to the drugs for the cancer treatment.
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Affiliation(s)
- Bhuwan Chandra Joshi
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University, Bhimtal Campus, Nainital-263136, India
| | - Vijay Juyal
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University, Bhimtal Campus, Nainital-263136, India
| | - Archana N. Sah
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University, Bhimtal Campus, Nainital-263136, India
| | - Piyush Verma
- Department of Pharmacology, School of Pharmaceutical science and Technology, Sardar Bhagwan Singh University, Dehradun-248001, India
| | - Minky Mukhija
- Department of Pharmaceutical Sciences, Ch. Devi Lal College of Pharmacy, Buria Road, Bhagwangarh, Jagadhri-135003, India
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Unveiling the Differential Antioxidant Activity of Maslinic Acid in Murine Melanoma Cells and in Rat Embryonic Healthy Cells Following Treatment with Hydrogen Peroxide. Molecules 2020; 25:molecules25174020. [PMID: 32899159 PMCID: PMC7504795 DOI: 10.3390/molecules25174020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/25/2020] [Accepted: 08/31/2020] [Indexed: 01/20/2023] Open
Abstract
Maslinic acid (MA) is a natural triterpene from Olea europaea L. with multiple biological properties. The aim of the present study was to examine MA’s effect on cell viability (by the MTT assay), reactive oxygen species (ROS levels, by flow cytometry) and key antioxidant enzyme activities (by spectrophotometry) in murine skin melanoma (B16F10) cells compared to those on healthy cells (A10). MA induced cytotoxic effects in cancer cells (IC50 42 µM), whereas no effect was found in A10 cells treated with MA (up to 210 µM). In order to produce a stress situation in cells, 0.15 mM H2O2 was added. Under stressful conditions, MA protected both cell lines against oxidative damage, decreasing intracellular ROS, which were higher in B16F10 than in A10 cells. The treatment with H2O2 and without MA produced different responses in antioxidant enzyme activities depending on the cell line. In A10 cells, all the enzymes were up-regulated, but in B16F10 cells, only superoxide dismutase, glutathione S-transferase and glutathione peroxidase increased their activities. MA restored the enzyme activities to levels similar to those in the control group in both cell lines, highlighting that in A10 cells, the highest MA doses induced values lower than control. Overall, these findings demonstrate the great antioxidant capacity of MA.
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Singh PP, Kumar A, Prakash B. Elucidation of antifungal toxicity of Callistemon lanceolatus essential oil encapsulated in chitosan nanogel against Aspergillus flavus using biochemical and in-silico approaches. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 37:1520-1530. [DOI: 10.1080/19440049.2020.1775310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kumar R, Gupta A, Singh AK, Bishayee A, Pandey AK. The Antioxidant and Antihyperglycemic Activities of Bottlebrush Plant ( Callistemon lanceolatus) Stem Extracts. MEDICINES 2020; 7:medicines7030011. [PMID: 32143382 PMCID: PMC7151608 DOI: 10.3390/medicines7030011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023]
Abstract
Background: Diabetes mellitus, a metabolic disease, is a major health concern today throughout the world. Callistemon lanceolatus (Myrtaceae), commonly known as bottlebrush, has been used by Indian tribal communities for the treatment of many diseases. The purpose of this study was to explore antioxidant and antihyperglycemic potential of methanolic and aqueous extracts of the stem of C. lanceolatus in vitro and in vivo. Methods: Phytoconstituents of C. lanceolatus stem were extracted in methanol and water sequentially followed by phytochemical analysis. The in vitro antioxidant potential of aqueous and methanolic extracts was assessed by metal ion chelating, free radical scavenging, and reducing power assays. The in vivo antihyperglycemic activity of the oral methanolic extract was studied in alloxan-induced diabetic rats. Bodyweight and blood glucose were monitored regularly. After the treatment period, serum was examined for total cholesterol, triglycerides, high-density lipoprotein (HDL), bilirubin, creatinine, urea, glutamate pyruvate transaminase (SGPT), glutamate oxaloacetate transaminase (SGOT), and alkaline phosphatase (ALP). Results: Methanolic extract exhibited superior antioxidant activity to aqueous extract. A marked increase in levels of serum markers, viz., glucose, triglycerides, total cholesterol, bilirubin, urea, creatinine, SGOT, SGPT, and ALP along with a reduction in HDL was observed in diabetic rats. Methanol extract treatment for 28 days accounted for a decrease in blood glucose and other metabolic markers accompanied by an improvement in body weight and HDL level in hyperglycemic rats. Conclusions: The present study suggests that C. lanceolatus methanolic stem extract possesses antioxidant and antihyperglycemic activities and has potential as a therapeutic agent in diabetes.
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Affiliation(s)
- Ramesh Kumar
- Department of Biochemistry, University of Allahabad, Allahabad 211 002, Uttar Pradesh, India; (R.K.); (A.G.); (A.K.S.)
| | - Ashutosh Gupta
- Department of Biochemistry, University of Allahabad, Allahabad 211 002, Uttar Pradesh, India; (R.K.); (A.G.); (A.K.S.)
| | - Amit Kumar Singh
- Department of Biochemistry, University of Allahabad, Allahabad 211 002, Uttar Pradesh, India; (R.K.); (A.G.); (A.K.S.)
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
- Correspondence: or (A.K.P.); or (A.B.); Tel.: +91-983-952-1138 (A.K.P.); +1-941-782-5950 (A.B.)
| | - Abhay K. Pandey
- Department of Biochemistry, University of Allahabad, Allahabad 211 002, Uttar Pradesh, India; (R.K.); (A.G.); (A.K.S.)
- Correspondence: or (A.K.P.); or (A.B.); Tel.: +91-983-952-1138 (A.K.P.); +1-941-782-5950 (A.B.)
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Li M, Li B, Xia ZM, Tian Y, Zhang D, Rui WJ, Dong JX, Xiao FJ. Anticancer Effects of Five Biflavonoids from Ginkgo Biloba L. Male Flowers In Vitro. Molecules 2019; 24:molecules24081496. [PMID: 30995808 PMCID: PMC6514578 DOI: 10.3390/molecules24081496] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 12/17/2022] Open
Abstract
Ginkgo biloba L., an ancient dioecious gymnosperm, is now cultivated worldwide for landscaping and medical purposes. A novel biflavonoid—amentoflavone 7′′-O-β-d-glucopyranoside (1)—and four known biflavonoids were isolated and identified from the male flowers of Ginkgo. The anti-proliferative activities of five biflavonoids were evaluated on different cancer lines. Bilobetin (3) and isoginkgetin (4) exhibited better anti-proliferative activities on different cancer lines. Their effects were found to be cell-specific and in a dose and time dependent manner for the most sensitive HeLa cells. The significant morphological changes validated their anticancer effects in a dose-dependent manner. They were capable of arresting the G2/M phase of the cell cycle, inducing the apoptosis of HeLa cells dose-dependently and activating the proapoptotic protein Bax and the executor caspase-3. Bilobetin (3) could also inhibit the antiapoptotic protein Bcl-2. These might be the mechanism underlying their anti-proliferation. In short, bilobetin (3) and isoginkgetin (4) might be the early lead compounds for new anticancer agents.
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Affiliation(s)
- Min Li
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Bin Li
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Zi-Ming Xia
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Ying Tian
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Dan Zhang
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
- School of Nursing, Jilin University, Changchun 130012, China.
| | - Wen-Jing Rui
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Jun-Xing Dong
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Feng-Jun Xiao
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
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