1
|
Su Q, Wang JJ, Ren JY, Wu Q, Chen K, Tu KH, Zhang Y, Leong SW, Sarwar A, Han X, Zhang M, Dai WF, Zhang YM. Parkin deficiency promotes liver cancer metastasis by TMEFF1 transcription activation via TGF-β/Smad2/3 pathway. Acta Pharmacol Sin 2024:10.1038/s41401-024-01254-3. [PMID: 38519646 DOI: 10.1038/s41401-024-01254-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/23/2023] [Accepted: 02/26/2024] [Indexed: 03/25/2024] Open
Abstract
Parkin (PARK2) deficiency is frequently observed in various cancers and potentially promotes tumor progression. Here, we showed that Parkin expression is downregulated in liver cancer tissues, which correlates with poor patient survival. Parkin deficiency in liver cancer cells promotes migration and metastasis as well as changes in EMT and metastasis markers. A negative correlation exists between TMEFF1 and Parkin expression in liver cancer cells and tumor tissues. Parkin deficiency leads to upregulation of TMEFF1 which promotes migration and metastasis. TMEFF1 transcription is activated by Parkin-induced endogenous TGF-β production and subsequent phosphorylation of Smad2/3 and its binding to TMEFF1 promotor. TGF-β inhibitor and TMEFF1 knockdown can reverse shParkin-induced cell migration and changes of EMT markers. Parkin interacts with and promotes the ubiquitin-dependent degradation of HIF-1α/HIF-1β and p53, which accounts for the suppression of TGF-β production. Our data have revealed that Parkin deficiency in cancer leads to the activation of the TGF-β/Smad2/3 pathway, resulting in the expression of TMEFF1 which promotes cell migration, EMT, and metastasis in liver cancer cells.
Collapse
Affiliation(s)
- Qi Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jing-Jing Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jia-Yan Ren
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Qing Wu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Kun Chen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Kai-Hui Tu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yu Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Sze Wei Leong
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ammar Sarwar
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xu Han
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Mi Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wei-Feng Dai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yan-Min Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China.
| |
Collapse
|
2
|
Ramli AH, Swain P, Mohd Fahmi MSA, Abas F, Leong SW, Tejo BA, Shaari K, Ali AH, Agustar HK, Awang R, Ng YL, Lau YL, Md Razali MA, Mastuki SN, Mohmad Misnan N, Mohd Faudzi SM, Kim CH. Preliminary insight on diarylpentanoids as potential antimalarials: In silico, in vitro pLDH and in vivo zebrafish toxicity assessment. Heliyon 2024; 10:e27462. [PMID: 38495201 PMCID: PMC10943399 DOI: 10.1016/j.heliyon.2024.e27462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024] Open
Abstract
Malaria remains a major public health problem worldwide, including in Southeast Asia. Chemotherapeutic agents such as chloroquine (CQ) are effective, but problems with drug resistance and toxicity have necessitated a continuous search for new effective antimalarial agents. Here we report on a virtual screening of ∼300 diarylpentanoids and derivatives, in search of potential Plasmodium falciparum lactate dehydrogenase (PfLDH) inhibitors with acceptable drug-like properties. Several molecules with binding affinities comparable to CQ were chosen for in vitro validation of antimalarial efficacy. Among them, MS33A, MS33C and MS34C are the most promising against CQ-sensitive (3D7) with EC50 values of 1.6, 2.5 and 3.1 μM, respectively. Meanwhile, MS87 (EC50 of 1.85 μM) shown the most active against the CQ-resistant Gombak A strain, and MS33A and MS33C the most effective P. knowlesi inhibitors (EC50 of 3.6 and 5.1 μM, respectively). The in vitro cytotoxicity of selected diarylpentanoids (MS33A, MS33C, MS34C and MS87) was tested on Vero mammalian cells to evaluate parasite selectivity (SI), showing moderate to low cytotoxicity (CC50 > 82 μM). In addition, MS87 exhibited a high SI and the lowest resistance index (RI), suggesting that MS87 may exert effective parasite inhibition with low resistance potential in the CQ-resistant P. falciparum strain. Furthermore, the in vivo toxicity of the molecules on early embryonic development, the cardiovascular system, heart rate, motor activity and apoptosis were assessed in a zebrafish animal model. The overall results indicate the preliminary potential of diarylpentanoids, which need further investigation for their development as new antimalarial agents.
Collapse
Affiliation(s)
- Amirah Hani Ramli
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Puspanjali Swain
- Department of Biology, Chungnam National University, Daejeon, 34134, South Korea
| | - Muhammad Syafiq Akmal Mohd Fahmi
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Faridah Abas
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Department of Food Science, Faculty of Food Science & Technology, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Sze Wei Leong
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Bimo Ario Tejo
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Khozirah Shaari
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Amatul Hamizah Ali
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
| | - Hani Kartini Agustar
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
| | - Rusdam Awang
- UPM - MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Yee Ling Ng
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Yee Ling Lau
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | | | - Siti Nurulhuda Mastuki
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Department of Biological Sciences and Biotechnology, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
| | - Norazlan Mohmad Misnan
- Herbal Medicine Research Centre, Institute for Medical Research, National Institutes of Health, 40170, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Siti Munirah Mohd Faudzi
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon, 34134, South Korea
| |
Collapse
|
3
|
Leong SW, Wang J, Okuda KS, Su Q, Zhang Y, Abas F, Chia SL, Yusoff K. Discovery of a novel dual functional phenylpyrazole-styryl hybrid that induces apoptotic and autophagic cell death in bladder cancer cells. Eur J Med Chem 2023; 254:115335. [PMID: 37098306 DOI: 10.1016/j.ejmech.2023.115335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 04/27/2023]
Abstract
Unpleasant side effects and resistance development remained the Achilles heel of chemotherapy. Since low tumor-selectivity and monotonous effect of chemotherapy are closely related to such bottleneck, targeting tumor-selective multi-functional anticancer agents may be an ideal strategy in the search of new safer drugs. Herein, we report the discovery of compound 21, a nitro-substituted 1,5-diphenyl-3-styryl-1H-pyrazole that possesses dual functional characteristics. The 2D- and 3D-culture-based studies revealed that 21 not only could induce ROS-independent apoptotic and EGFR/AKT/mTOR-mediated autophagic cell deaths in EJ28 cells simultaneously but also has the ability in inducing cell death at both proliferating and quiescent zones of EJ28 spheroids. The molecular modelling analysis showed that 21 possesses EGFR targeting capability as it forms stable interactions in the EGFR active site. Together with its good safety profile in the zebrafish-based model, the present study showed that 21 is promising and may lead to the discovery of tumor-selective multi-functional anti-cancer agents.
Collapse
Affiliation(s)
- Sze Wei Leong
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | - JingJing Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, PR China
| | - Kazuhide Shaun Okuda
- Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne, Australia; Department of Anatomy and Physiology and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Qi Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, PR China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, PR China
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Suet Lin Chia
- Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Malaysia Genome and Vaccine Institute (MGVI), National Institute of Biotechnology Malaysia (NIBM), Jalan Bangi, 43000, Kajang, Selangor, Malaysia.
| | - Khatijah Yusoff
- Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Malaysia Genome and Vaccine Institute (MGVI), National Institute of Biotechnology Malaysia (NIBM), Jalan Bangi, 43000, Kajang, Selangor, Malaysia
| |
Collapse
|
4
|
Ong HM, Ahmad Azmi AF, Leong SW, Abas F, Perimal EK, Farouk AAO, Israf DA, Sulaiman MR. The Involvement of l-Arginine-Nitric Oxide-cGMP-ATP-Sensitive K + Channel Pathway in Antinociception of BBHC, a Novel Diarylpentanoid Analogue, in Mice Model. Molecules 2021; 26:molecules26247431. [PMID: 34946513 PMCID: PMC8705496 DOI: 10.3390/molecules26247431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/25/2021] [Accepted: 11/01/2021] [Indexed: 12/05/2022] Open
Abstract
The present study focuses on the possible involvement of l-arginine-nitric oxide-cGMP-ATP-sensitive K+ channel pathway in the antinociceptive activity of a novel diarylpentanoid analogue, 2-benzoyl-6-(3-bromo-4-hydroxybenzylidene)cyclohexen-1-ol (BBHC) via a chemical nociceptive model in mice. The antinociceptive action of BBHC (1 mg/kg, i.p.) was attenuated by the intraperitoneal pre-treatment of l-arginine (a nitric oxide synthase precursor) and glibenclamide (an ATP-sensitive K+ channel blocker) in acetic acid-induced abdominal constriction tests. Interestingly, BBHC’s antinociception was significantly enhanced by the i.p. pre-treatment of 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ), a selective inhibitor of soluble guanylyl cyclase (p < 0.05). Altogether, these findings suggest that the systemic administration of BBHC is able to establish a significant antinociceptive effect in a mice model of chemically induced pain. BBHC’s antinociception is shown to be mediated by the involvement of l-arginine-nitric oxide-cGMP-ATP-sensitive K+ channel pathway, without any potential sedative or muscle relaxant concerns.
Collapse
Affiliation(s)
- Hui Ming Ong
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
| | - Ahmad Farhan Ahmad Azmi
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
| | - Sze Wei Leong
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Faridah Abas
- Department of Food Sciences, Faculty of Food Science & Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Natural Medicines and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Enoch Kumar Perimal
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
| | - Ahmad Akira Omar Farouk
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
| | - Daud Ahmad Israf
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
| | - Mohd Roslan Sulaiman
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (H.M.O.); (A.F.A.A.); (E.K.P.); (A.A.O.F.); (D.A.I.)
- Correspondence: ; Tel.: +60-389-472-346
| |
Collapse
|
5
|
Ullah A, Leong SW, Wang J, Wu Q, Ghauri MA, Sarwar A, Su Q, Zhang Y. Cephalomannine inhibits hypoxia-induced cellular function via the suppression of APEX1/HIF-1α interaction in lung cancer. Cell Death Dis 2021; 12:490. [PMID: 33990544 PMCID: PMC8121842 DOI: 10.1038/s41419-021-03771-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/28/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 12/12/2022]
Abstract
Lung cancer (LC) is one of the leading causes of cancer-related death. As one of the key features of tumor microenvironment, hypoxia conditions are associated with poor prognosis in LC patients. Upregulation of hypoxic-induced factor-1α (HIF-1α) leads to the activation of various factors that contribute to the increased drug resistance, proliferation, and migration of tumor cells. Apurinic/apyrimidinic endonuclease-1 (APEX1) is a multi-functional protein that regulates several transcription factors, including HIF-1α, that contribute to tumor growth, oxidative stress responses, and DNA damage. In this study, we explored the mechanisms underlying cell responses to hypoxia and modulation of APEX1, which regulate HIF-1α and downstream pathways. We found that hypoxia-induced APEX1/HIF-1α pathways regulate several key cellular functions, including reactive oxygen species (ROS) production, carbonic anhydrase 9 (CA9)-mediated intracellular pH, migration, and angiogenesis. Cephalomannine (CPM), a natural compound, exerted inhibitory effects in hypoxic LC cells via the inhibition of APEX1/HIF-1α interaction in vitro and in vivo. CPM can significantly inhibit cell viability, ROS production, intracellular pH, and migration in hypoxic LC cells as well as angiogenesis of HUVECs under hypoxia through the inhibition of APEX1/HIF-1α interaction. Taken together, CPM could be considered as a promising compound for LC treatment.
Collapse
Affiliation(s)
- Asmat Ullah
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China
| | - Sze Wei Leong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Jingjing Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China
| | - Qing Wu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China
| | - Mohsin Ahmad Ghauri
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China
| | - Ammar Sarwar
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China
| | - Qi Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China.
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P.R. China.
| |
Collapse
|
6
|
Abdullah MA, Lee YR, Mastuki SN, Leong SW, Wan Ibrahim WN, Mohammad Latif MA, Ramli ANM, Mohd Aluwi MFF, Mohd Faudzi SM, Kim CH. Development of diarylpentadienone analogues as alpha-glucosidase inhibitor: Synthesis, in vitro biological and in vivo toxicity evaluations, and molecular docking analysis. Bioorg Chem 2020; 104:104277. [PMID: 32971414 DOI: 10.1016/j.bioorg.2020.104277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/02/2020] [Revised: 07/31/2020] [Accepted: 09/10/2020] [Indexed: 12/31/2022]
Abstract
A series of aminated- (1-9) and sulfonamide-containing diarylpentadienones (10-18) were synthesized, structurally characterized, and evaluated for their in vitro anti-diabetic potential on α-glucosidase and DPP-4 enzymes. It was found that all the new molecules were non-associated PAINS compounds. The sulfonamide-containing series (compounds 10-18) selectively inhibited α-glucosidase over DPP-4, in which compound 18 demonstrated the highest activity with an IC50 value of 5.69 ± 0.5 µM through a competitive inhibition mechanism. Structure-activity relationship (SAR) studies concluded that the introduction of the trifluoromethylbenzene sulfonamide moiety was essential for the suppression of α-glucosidase. The most active compound 18, was then further tested for in vivo toxicities using the zebrafish animal model, with no toxic effects detected in the normal embryonic development, blood vessel formation, and apoptosis of zebrafish. Docking simulation studies were also carried out to better understand the binding interactions of compound 18 towards the homology modeled α -glucosidase and the human lysosomal α -glucosidase enzymes. The overall results suggest that the new sulfonamide-containing diarylpentadienones, compound 18, could be a promising candidate in the search for a new α-glucosidase inhibitor, and can serve as a basis for further studies involving hit-to-lead optimization, in vivo efficacy and safety assessment in an animal model and mechanism of action for the treatment of T2DM patients.
Collapse
Affiliation(s)
- Maryam Aisyah Abdullah
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Yu-Ri Lee
- Department of Biology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Siti Nurulhuda Mastuki
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Wan Norhamidah Wan Ibrahim
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Muhammad Alif Mohammad Latif
- Department of Chemistry, Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Aizi Nor Mazila Ramli
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, 26300 Pahang, Malaysia
| | - Mohd Fadhlizil Fasihi Mohd Aluwi
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, 26300 Pahang, Malaysia
| | - Siti Munirah Mohd Faudzi
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea.
| |
Collapse
|
7
|
Leong SW, Chia SL, Abas F, Yusoff K. In-Vitro and In-Silico Evaluations of Heterocyclic-Containing Diarylpentanoids as Bcl-2 Inhibitors Against LoVo Colorectal Cancer Cells. Molecules 2020; 25:E3877. [PMID: 32858795 PMCID: PMC7504466 DOI: 10.3390/molecules25173877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/28/2020] [Accepted: 08/02/2020] [Indexed: 11/16/2022] Open
Abstract
In the present study, we investigated the in-vitro anti-cancer potential of six diarylpentanoids against a panel of BRAF- and KRAS-mutated colorectal cancer cell lines including T84, SW620, LoVo, HT29, NCI-H508, RKO, and LS411N cells. Structure-activity relationship study suggested that the insertions of tetrahydro-4H-thiopyran-4-one and brominated phenyl moieties are essential for better cytotoxicity. Among the evaluated analogs, 2e has been identified as the lead compound due to its low IC50 values of approximately 1 µM across all cancer cell lines and high chemotherapeutic index of 7.1. Anti-proliferative studies on LoVo cells showed that 2e could inhibit cell proliferation and colony formations by inducing G2/M cell cycle arrest. Subsequent cell apoptosis assay confirmed that 2e is a Bcl-2 inhibitor that could induce intrinsic cell apoptosis by creating a cellular redox imbalance through its direct inhibition on the Bcl-2 protein. Further molecular docking studies revealed that the bromophenyl moieties of 2e could interact with the Bcl-2 surface pocket through hydrophobic interaction, while the tetrahydro-4H-thiopyran-4-one fragment could form additional Pi-sulfur and Pi-alkyl interactions in the same binding site. In all, the present results suggest that 2e could be a potent lead that deserves further modification and investigation in the development of a new Bcl-2 inhibitor.
Collapse
Affiliation(s)
- Sze Wei Leong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia;
| | - Suet Lin Chia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia;
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia
| | - Khatijah Yusoff
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia;
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia
- Malaysia Genome Institute (MGI), National Institute of Biotechnology Malaysia (NIBM), Jalan Bangi, Kajang 43000, Malaysia
| |
Collapse
|
8
|
Leong SW, Chia SL, Abas F, Yusoff K. Synthesis and in-vitro anti-cancer evaluations of multi-methoxylated asymmetrical diarylpentanoids as intrinsic apoptosis inducer against colorectal cancer. Bioorg Med Chem Lett 2020; 30:127065. [PMID: 32127259 DOI: 10.1016/j.bmcl.2020.127065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 01/13/2023]
Abstract
In the present study, a series of nine stable 3,4,5-methoxylphenyl-containing asymmetrical diarylpentanoids, derivatives of curcuminoids, have been synthesized, characterized and evaluated for their in-vitro anti-cancer potential against a panel of BRAF- and KRAS-mutated colorectal cancer cell lines including T84, LoVo and SW620, HT29, RKO and NCI-H508, respectively. Structure-activity relationship study on cytotoxicity of tested compounds suggested that the presence of meta-hydroxyl and adjacent dimethoxyl groups are crucial for enhanced cytotoxicity of diarylpentanoids. Among the evaluated analogs, 8 has been identified as the lead compound due to its highest chemotherapeutic index of 9.9 and nano molar scale cytotoxicity against SW620 and RKO. Colonies formation and cell cycle analyses on 8-treated RKO cells showed that 8 exhibits strong anti-proliferative activity by inducing G2/M-phase cell arrest. Subsequent flow cytometry based annexin-V and DCFHDA studies suggested that 8 could induce apoptosis through intracellular ROS-dependent pathway. Further Western blot studies confirmed that 8 has induced intrinsic apoptosis in RKO cells through the up-regulations of Bad and Bax pro-apoptotic proteins and down-regulations of Bcl-2 and Bcl-xL pro-survival proteins. In all, the present results suggest that 8 could be a potent lead which deserves further modification and investigation in the development of small molecule-based anti-colorectal cancer agents.
Collapse
Affiliation(s)
- Sze Wei Leong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Suet Lin Chia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia; Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Faridah Abas
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia; Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Khatijah Yusoff
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia; Malaysia Genome Institute (MGI), National Institute of Biotechnology Malaysia (NIBM), Jalan Bangi, 43000 Kajang, Selangor Darul Ehsan, Malaysia
| |
Collapse
|
9
|
Yusoh NA, Leong SW, Chia SL, Harun SN, Rahman MBA, Vallis KA, Gill MR, Ahmad H. Metallointercalator [Ru(dppz) 2(PIP)] 2+ Renders BRCA Wild-Type Triple-Negative Breast Cancer Cells Hypersensitive to PARP Inhibition. ACS Chem Biol 2020; 15:378-387. [PMID: 31898884 DOI: 10.1021/acschembio.9b00843] [Citation(s) in RCA: 4] [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: 11/28/2022]
Abstract
There is a need to improve and extend the use of clinically approved poly(ADP-ribose) polymerase (PARP) inhibitors (PARPi), including for BRCA wild-type triple-negative breast cancer (TNBC). The demonstration that ruthenium(II) polypyridyl complex (RPC) metallointercalators can rapidly stall DNA replication fork progression provides the rationale for their combination alongside DNA damage response (DDR) inhibitors to achieve synergism in cancer cells. The aim of the present study was to evaluate use of the multi-intercalator [Ru(dppz)2(PIP)]2+ (dppz = dipyrido[3,2-a:2',3'-c]phenazine, PIP = (2-(phenyl)imidazo[4,5-f][1,10]phenanthroline, Ru-PIP) alongside the PARPi olaparib and NU1025. Cell proliferation and clonogenic survival assays indicated a synergistic relationship between Ru-PIP and olaparib in MDA-MB-231 TNBC and MCF7 human breast cancer cells. Strikingly, low dose Ru-PIP renders both cell lines hypersensitive to olaparib, with a >300-fold increase in olaparib potency in TNBC, the largest nongenetic PARPi enhancement effect described to date. A negligible impact on the viability of normal human fibroblasts was observed for any combination tested. Increased levels of DNA double-strand break (DSB) damage and olaparib abrogation of Ru-PIP-activated pChk1 signaling are consistent with PARPi-facilitated collapse of Ru-PIP-associated stalled replication forks. This results in enhanced G2/M cell-cycle arrest, apoptosis, and decreased cell motility for the combination treatment compared to single-agent conditions. This work establishes that an RPC metallointercalator can be combined with PARPi for potent synergy in BRCA-proficient breast cancer cells, including TNBC.
Collapse
Affiliation(s)
- Nur Aininie Yusoh
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Sze Wei Leong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Suet Lin Chia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Siti Norain Harun
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Mohd Basyaruddin Abdul Rahman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Integrated Chemical Biophysics Research Centre, Faculty Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Katherine A. Vallis
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Martin R. Gill
- Department of Chemistry, College of Science, Swansea University, Swansea, Wales, United Kingdom
| | - Haslina Ahmad
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Integrated Chemical Biophysics Research Centre, Faculty Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| |
Collapse
|
10
|
Awin T, Mediani A, Mohd Faudzi SM, Maulidiani, Leong SW, Shaari K, Abas F. Identification of α-glucosidase inhibitory compounds from Curcuma mangga fractions. International Journal of Food Properties 2020. [DOI: 10.1080/10942912.2020.1716792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tahani Awin
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Chemistry, Faculty of Science, University of Benghazi, Benghazi, Libya
| | - Ahmed Mediani
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Malaysia
| | - Siti Munirah Mohd Faudzi
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, Malaysia
| | - Maulidiani
- School of Fundamental Science, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, Malaysia
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
| |
Collapse
|
11
|
Hisamuddin N, Shaik Mossadeq WM, Sulaiman MR, Abas F, Leong SW, Kamarudin N, Ong HM, Ahmad Azmi AF, Ayumi RR, Talib M. Anti-Edematogenic and Anti-Granuloma Activity of a Synthetic Curcuminoid Analog, 5-(3,4-Dihydroxyphenyl)-3-hydroxy-1-(2-hydroxyphenyl)penta-2,4-dien-1-one, in Mouse Models of Inflammation. Molecules 2019; 24:molecules24142614. [PMID: 31323775 PMCID: PMC6680833 DOI: 10.3390/molecules24142614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/08/2019] [Accepted: 06/12/2019] [Indexed: 12/22/2022] Open
Abstract
Curcumin, derived from the rhizome Curcuma longa, has been scientifically proven to possess anti-inflammatory activity but is of limited clinical and veterinary use owing to its low bioavailability and poor solubility. Hence, analogs of curcuminoids with improved biological properties have been synthesized to overcome these limitations. This study aims to provide the pharmacological basis for the use of 5-(3,4-dihydroxyphenyl)-3-hydroxy-1-(2-hydroxyphenyl)penta-2,4-dien-1-one (DHHPD), a synthetic curcuminoid analog, as an anti-edematogenic and anti-granuloma agent. The carrageenan-induced paw edema and the cotton pellet-induced granuloma assays were used to assess the anti-inflammatory activity of DHHPD in mice. The effects of DHHPD on the histaminergic, serotonergic, and bradykininergic systems were determined by the histamine-, serotonin-, and bradykinin-induced paw edema tests, respectively. DHHPD (0.1, 0.3, 1, and 3 mg/kg, intraperitoneal) evoked significant reductions (p < 0.05) in carrageenan-induced paw edema at different time intervals and granuloma formation (p < 0.0001) by 22.08, 32.57, 37.20, and 49.25%, respectively. Furthermore, DHHPD significantly reduced paw edema (p < 0.05) induced by histamine, serotonin, and bradykinin. The present study suggests that DHHPD exerts anti-edematogenic activity, possibly by inhibiting the synthesis or release of autacoid mediators of inflammation through the histaminergic, serotonergic, and bradykininergic systems. The anti-granuloma effect may be attributed to the suppression of transudative, exudative, and proliferative activities associated with inflammation.
Collapse
Affiliation(s)
- Nadia Hisamuddin
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Wan Mastura Shaik Mossadeq
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Mohd Roslan Sulaiman
- Department of Biomedical Sciences Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Nadhirah Kamarudin
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Hui Ming Ong
- Department of Biomedical Sciences Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Ahmad Farhan Ahmad Azmi
- Department of Biomedical Sciences Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Rasyidah Ryta Ayumi
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Madihah Talib
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| |
Collapse
|
12
|
Song DSS, Leong SW, Ng KW, Abas F, Shaari K, Leong CO, Chung FFL, Mai CW, Hii LW, Tan PJ, Patel V. Novel 2-Benzoyl-6-(2,3-Dimethoxybenzylidene)-Cyclohexenol Confers Selectivity toward Human MLH1 Defective Cancer Cells through Synthetic Lethality. SLAS Discov 2019; 24:548-562. [PMID: 30897027 DOI: 10.1177/2472555219831405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
DNA mismatch repair (MMR) deficiency has been associated with a higher risk of developing colorectal, endometrial, and ovarian cancer, and confers resistance in conventional chemotherapy. In addition to the lack of treatment options that work efficaciously on these MMR-deficient cancer patients, there is a great need to discover new drug leads for this purpose. In this study, we screened through a library of commercial and semisynthetic natural compounds to identify potential synthetic lethal drugs that may selectively target MLH1 mutants using MLH1 isogenic colorectal cancer cell lines and various cancer cell lines with known MLH1 status. We identified a novel diarylpentanoid analogue, 2-benzoyl-6-(2,3-dimethoxybenzylidene)-cyclohexenol, coded as AS13, that demonstrated selective toxicity toward MLH1-deficient cancer cells. Subsequent analysis suggested AS13 induced elevated levels of oxidative stress, resulting in DNA damage where only the proficient MLH1 cells were able to be repaired and hence escaping cellular death. While AS13 is modest in potency and selectivity, this discovery has the potential to lead to further drug development that may offer better treatment options for cancer patients with MLH1 deficiency.
Collapse
Affiliation(s)
| | - Sze Wei Leong
- 2 Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Kwok Wen Ng
- 1 Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Faridah Abas
- 2 Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
- 3 Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Selangor, Malaysia
| | - Khozirah Shaari
- 2 Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
- 4 Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Chee Onn Leong
- 5 Center for Cancer and Stem Cell Research, International Medical University, Bukit Jalil, Malaysia
| | - Felicia Fei-Lei Chung
- 5 Center for Cancer and Stem Cell Research, International Medical University, Bukit Jalil, Malaysia
| | - Chun Wai Mai
- 5 Center for Cancer and Stem Cell Research, International Medical University, Bukit Jalil, Malaysia
- 6 School of Pharmacy, International Medical University, Bukit Jalil, Malaysia
| | - Ling Wei Hii
- 5 Center for Cancer and Stem Cell Research, International Medical University, Bukit Jalil, Malaysia
| | - Pei Jean Tan
- 1 Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Vyomesh Patel
- 1 Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| |
Collapse
|
13
|
Foo JB, Ng LS, Lim JH, Tan PX, Lor YZ, Loo JSE, Low ML, Chan LC, Beh CY, Leong SW, Saiful Yazan L, Tor YS, How CW. Induction of cell cycle arrest and apoptosis by copper complex Cu(SBCM)2 towards oestrogen-receptor positive MCF-7 breast cancer cells. RSC Adv 2019; 9:18359-18370. [PMID: 35515266 PMCID: PMC9064738 DOI: 10.1039/c9ra03130h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 04/26/2019] [Accepted: 06/03/2019] [Indexed: 12/29/2022] Open
Abstract
Copper complexes have the potential to be developed as targeted therapy for cancer because cancer cells take up larger amounts of copper than normal cells. Copper complex Cu(SBCM)2 has been reported to induce cell cycle arrest and apoptosis towards triple-negative breast cancer cells. Nevertheless, its effect towards other breast cancer subtypes has not been explored. Therefore, the present study was conducted to investigate the effect of Cu(SBCM)2 towards oestrogen-receptor positive MCF-7 breast cancer cells. Growth inhibition of Cu(SBCM)2 towards MCF-7 and human non-cancerous MCF-10A breast cells was determined by MTT assay. Morphological changes of Cu(SBCM)2-treated-MCF-7 cells were observed under an inverted microscope. Annexin V/PI apoptosis assay and cell cycle analysis were evaluated by flow cytometry. The expression of wild-type p53 protein was evaluated by Western blot analysis. The intracellular ROS levels of MCF-7 treated with Cu(SBCM)2 were detected using DCFH-DA under a fluorescence microscope. The cells were then co-treated with Cu(SBCM)2 and antioxidants to evaluate the involvement of ROS in the cytotoxicity of Cu(SBCM)2. Docking studies of Cu(SBCM)2 with DNA, DNA topoisomerase I, and human ribonucleotide reductase were also performed. The growth of MCF-7 cells was inhibited by Cu(SBCM)2 in a dose-dependent manner with less toxicity towards MCF-10A cells. It was found that Cu(SBCM)2 induced G2/M cell cycle arrest and apoptosis in MCF-7 cells, possibly via a p53 pathway. Induction of intracellular ROS was not detected in MCF-7 cells. Interestingly, antioxidants enhance the cytotoxicity of Cu(SBCM)2 towards MCF-7 cells. DNA topoisomerase I may be the most likely target that accounts for the cytotoxicity of Cu(SBCM)2. Cu(SBCM)2 binds to DNA topoisomerase I, which, in turn, induces cell cycle arrest and apoptosis in MCF-7 breast cancer cells, possibly via p53 signalling pathway.![]()
Collapse
Affiliation(s)
- Jhi Biau Foo
- Faculty of Pharmacy
- MAHSA University
- Malaysia
- School of Pharmacy
- Faculty of Health & Medical Sciences
| | - Li Shan Ng
- Faculty of Pharmacy
- MAHSA University
- Malaysia
| | - Ji Hui Lim
- Faculty of Pharmacy
- MAHSA University
- Malaysia
| | | | | | - Jason Siau Ee Loo
- School of Pharmacy
- Faculty of Health & Medical Sciences
- Taylor's University
- Malaysia
| | - May Lee Low
- Department of Pharmaceutical Chemistry
- School of Pharmacy
- International Medical University
- Kuala Lumpur
- Malaysia
| | - Lee Chin Chan
- Virology Lab 1
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia (UPM)
- Malaysia
| | - Chaw Yee Beh
- Laboratory of Vaccines and Immunotherapeutics
- Institute of Bioscience
- Universiti Putra Malaysia (UPM)
- Malaysia
| | - Sze Wei Leong
- Virology Lab 1
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia (UPM)
- Malaysia
| | - Latifah Saiful Yazan
- Laboratory of Molecular Biomedicine
- Institute of Bioscience
- Universiti Putra Malaysia
- Malaysia
- Department of Biomedical Sciences
| | - Yin Sim Tor
- School of Biosciences
- Faculty of Health & Medical Sciences
- Taylor's University
- Malaysia
| | | |
Collapse
|
14
|
Ban A, Omar A, Chong LY, Lockman H, Ida Zaliza ZA, Ali I, Jaya M, Leong SW, Mazapuspavina MY, Yusof M, Zim M, Nor Azila MI, Jamal SM, Yoon CK, Malek Abdol Hamid ZI. Management of asthma in adults in primary care. Malays Fam Physician 2018; 13:20-26. [PMID: 30800229 PMCID: PMC6382081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Asthma is a chronic inflammatory disease of the airway which is often misdiagnosed and undertreated. Early diagnosis and vigilant asthma control are crucial to preventing permanent airway damage, improving quality of life and reducing healthcare burdens. The key approaches to asthma management should include patient empowerment through health education and self-management and, an effective patient-healthcare provider partnership.
Collapse
Affiliation(s)
- Ayl Ban
- Mb.Bch BAO (Ireland) MMed internal Medicine (UKM) Jabatan Perubatan, Pusat PerubatanUKM, Malaysia
| | - A Omar
- MD (USM) MMed Internal Medicine (USM) Jabatan Perubatan, Hospital Raja Perempuan Zainab II Malaysia
| | - L Y Chong
- B. Pharm (UKM) 16, Jalan Jelok Ria 7, Taman SriJelok 43000 Kajang, Selangor Malaysia
| | - H Lockman
- MB, BCh, BAO (Ireland) CCT (UK) (Respiratory & Internal Medicine), Respiratory Clinic Prince Court Medical Centre Malaysia
| | - Z A Ida Zaliza
- MD UKM MMed (Emergency) USM Jabatan Kecemasan & Trauma Hospital Tuanku Fauziah Malaysia
| | - Iah Ali
- MBBS (Malaya) MMed (Int Med) 33-11-3 Sri York Condominium Halaman York 10450 George Town Penang, Malaysia
| | - M Jaya
- B.Biomed.Sc. (UKM), B.Pharm (USM-UCSI), M.Pharm (Clin Pharm) (USM) School of Pharmaceutical Sciences Universiti Sains Malaysia Malaysia
| | - S W Leong
- MD (UKM), MRCP (UK) 157, Taman Selatan, Leboh Tamarind, 41200, Klang, Selangor. Malaysia
| | - M Y Mazapuspavina
- MBBS (U.Malaya) MMed Fam Med Malaya (U.Malaya) Faculty of Medicine UiTM Selayang Campus, Malaysia
| | - Mam Yusof
- MD (UKM), MPH (Epid)(UM) Cawangan Penilaian Teknologi Kesihatan, Bahagian Perkembangan Perubatan, KKM Putrajaya Malaysia
| | - Mam Zim
- MBBch BAO (Ire), MMed (Mal) Fellowship Respiratory (Mal) Fakulti Perubatan, Universiti Teknologi MARA, Kampus Selayang Malaysia
| | - M I Nor Azila
- MBBS UM, MMed Fam Medicine (UKM) PT 22097, JalanKolej 5, Desa Kolej, 71800 Putra Nilai. N.Sembilan Malaysia
| | - S M Jamal
- MBBS (Adelaide), Masters of Emergency Medicine (UKM) 77, Jalan C10, Taman Melawati, 53100, Kuala Lumpur, Malaysia
| | - C K Yoon
- MB BCH BAO (Ire), MRCP (UK) 1-2-21, Cascadia Apartment, Halaman Cantonment, 10350 Pulau Pinang, Malaysia
| | - Z I Malek Abdol Hamid
- B.MedSci.MB, BCh BaO (Ireland) Masters of Emergency Medicine (UKM) 55, Jalan Mega, Taman Mega, Jalan Abd Rahman 84150 Parit Jawa Muar, Johor, Malaysia
| |
Collapse
|
15
|
Kamarudin N, Hisamuddin N, Ong HM, Ahmad Azmi AF, Leong SW, Abas F, Sulaiman MR, Shaik Mossadeq WM. Analgesic Effect of 5-(3,4-Dihydroxyphenyl)-3-hydroxy-1-(2-hydroxyphenyl)penta-2,4-dien-1-one in Experimental Animal Models of Nociception. Molecules 2018; 23:molecules23092099. [PMID: 30134576 PMCID: PMC6225497 DOI: 10.3390/molecules23092099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 01/22/2023] Open
Abstract
Curcuminoids derived from turmeric rhizome have been reported to exhibit antinociceptive, antioxidant and anti-inflammatory activities. We evaluated the peripheral and central antinociceptive activities of 5-(3,4-dihydroxyphenyl)-3-hydroxy-1-(2-hydroxyphenyl)penta-2,4-dien-1-one (DHHPD), a novel synthetic curcuminoid analogue at 0.1, 0.3, 1 and 3 mg/kg (intraperitoneal), through chemical and thermal models of nociception. The effects of DHHPD on the vanilloid and glutamatergic systems were evaluated through the capsaicin- and glutamate-induced paw licking tests. Results showed that DHHPD significantly (p < 0.05) attenuated the writhing response produced by the 0.8% acetic acid injection. In addition, 1 and 3 mg/kg of DHHPD significantly (p < 0.05) reduced the licking time spent by each mouse in both phases of the 2.5% formalin test and increased the response latency of mice on the hot-plate. However, the effect produced in the latter was not reversed by naloxone, a non-selective opioid receptor antagonist. Despite this, DHHPD decreased the licking latency of mice in the capsaicin- and glutamate-induced paw licking tests in a dose response manner. In conclusion, DHHPD showed excellent peripheral and central antinociceptive activities possibly by attenuation of the synthesis and/or release of pro-inflammatory mediators in addition to modulation of the vanilloid and glutamatergic systems without an apparent effect on the opioidergic system.
Collapse
Affiliation(s)
- Nadhirah Kamarudin
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Nadia Hisamuddin
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Hui Ming Ong
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Ahmad Farhan Ahmad Azmi
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Sze Wei Leong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Mohd Roslan Sulaiman
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Wan Mastura Shaik Mossadeq
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| |
Collapse
|
16
|
Leong SW, Abas F, Lam KW, Yusoff K. In vitro and in silico evaluations of diarylpentanoid series as α-glucosidase inhibitor. Bioorg Med Chem Lett 2018; 28:302-309. [DOI: 10.1016/j.bmcl.2017.12.048] [Citation(s) in RCA: 12] [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: 09/19/2017] [Revised: 12/07/2017] [Accepted: 12/21/2017] [Indexed: 12/30/2022]
|
17
|
Mohd Aluwi MFF, Rullah K, Haque MA, Yamin BM, Ahmad W, Amjad MW, Leong SW, Fahmizar NA, Jalil J, Abas F, Ismail NH, Jantan I, Lam KW. Suppression of PGE2 production via disruption of MAPK phosphorylation by unsymmetrical dicarbonyl curcumin derivatives. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2025-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
18
|
Velaithan V, Okuda KS, Ng MF, Samat N, Leong SW, Faudzi SMM, Abas F, Shaari K, Cheong SC, Tan PJ, Patel V. Erratum to: Zebrafish phenotypic screen identifies novel Notch antagonists. Invest New Drugs 2017; 35:250. [PMID: 28185040 DOI: 10.1007/s10637-017-0437-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Vithya Velaithan
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Kazuhide Shaun Okuda
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Mei Fong Ng
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Norazwana Samat
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Siti Munirah Mohd Faudzi
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Sok Ching Cheong
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Pei Jean Tan
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Vyomesh Patel
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia.
| |
Collapse
|
19
|
Velaithan V, Okuda KS, Ng MF, Samat N, Leong SW, Faudzi SMM, Abas F, Shaari K, Cheong SC, Tan PJ, Patel V. Zebrafish phenotypic screen identifies novel Notch antagonists. Invest New Drugs 2017; 35:166-179. [PMID: 28058624 DOI: 10.1007/s10637-016-0423-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 11/04/2016] [Accepted: 12/28/2016] [Indexed: 12/15/2022]
Abstract
Zebrafish represents a powerful in vivo model for phenotype-based drug discovery to identify clinically relevant small molecules. By utilizing this model, we evaluated natural product derived compounds that could potentially modulate Notch signaling that is important in both zebrafish embryogenesis and pathogenic in human cancers. A total of 234 compounds were screened using zebrafish embryos and 3 were identified to be conferring phenotypic alterations similar to embryos treated with known Notch inhibitors. Subsequent secondary screens using HEK293T cells overexpressing truncated Notch1 (HEK293TΔE) identified 2 compounds, EDD3 and 3H4MB, to be potential Notch antagonists. Both compounds reduced protein expression of NOTCH1, Notch intracellular domain (NICD) and hairy and enhancer of split-1 (HES1) in HEK293TΔE and downregulated Notch target genes. Importantly, EDD3 treatment of human oral cancer cell lines demonstrated reduction of Notch target proteins and genes. EDD3 also inhibited proliferation and induced G0/G1 cell cycle arrest of ORL-150 cells through inducing p27KIP1. Our data demonstrates the utility of the zebrafish phenotypic screen and identifying EDD3 as a promising Notch antagonist for further development as a novel therapeutic agent.
Collapse
Affiliation(s)
- Vithya Velaithan
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Kazuhide Shaun Okuda
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Mei Fong Ng
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Norazwana Samat
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Siti Munirah Mohd Faudzi
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Sok Ching Cheong
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Pei Jean Tan
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia
| | - Vyomesh Patel
- Cancer Research Malaysia, 12A, Jalan TP5, Taman Perindustrian UEP, 47600, Subang Jaya, Malaysia.
| |
Collapse
|
20
|
Lawal U, Leong SW, Shaari K, Ismail IS, Khatib A, Abas F. α-Glucosidase Inhibitory and Antioxidant Activities of DifferentIpomoea aquaticaCultivars and LC-MS/MS Profiling of the Active Cultivar. J Food Biochem 2016. [DOI: 10.1111/jfbc.12303] [Citation(s) in RCA: 19] [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: 11/28/2022]
Affiliation(s)
- Umar Lawal
- Department of Food Science, Faculty of Food Science and Technology; Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
| | - Sze Wei Leong
- Laboratory of Natural Products; Institute of Bioscience, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products; Institute of Bioscience, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
| | - Intan Safinar Ismail
- Laboratory of Natural Products; Institute of Bioscience, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
| | - Alfi Khatib
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; International Islamic University Malaysia; 25200 Kuantan Malaysia
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology; Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
- Laboratory of Natural Products; Institute of Bioscience, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
| |
Collapse
|
21
|
Leong SW, Abas F, Lam KW, Shaari K, Lajis NH. 2-Benzoyl-6-benzylidenecyclohexanone analogs as potent dual inhibitors of acetylcholinesterase and butyrylcholinesterase. Bioorg Med Chem 2016; 24:3742-51. [PMID: 27328658 DOI: 10.1016/j.bmc.2016.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 03/28/2016] [Revised: 05/26/2016] [Accepted: 06/09/2016] [Indexed: 11/30/2022]
Abstract
In the present study, a series of 2-benzoyl-6-benzylidenecyclohexanone analogs have been synthesized and evaluated for their anti-cholinesterase activity. Among the forty-one analogs, four compounds (38, 39, 40 and 41) have been identified as lead compounds due to their highest inhibition on both AChE and BChE activities. Compounds 39 and 40 in particular exhibited highest inhibition on both AChE and BChE with IC50 values of 1.6μM and 0.6μM, respectively. Further structure-activity relationship study suggested that presence of a long-chain heterocyclic in one of the rings played a critical role in the dual enzymes' inhibition. The Lineweaver-Burk plots and docking results suggest that both compounds could simultaneously bind to the PAS and CAS regions of the enzyme. ADMET analysis further confirmed the therapeutic potential of both compounds based upon their high BBB-penetrating. Thus, 2-benzoyl-6-benzylidenecyclohexanone containing long-chain heterocyclic amine analogs represent a new class of cholinesterase inhibitor, which deserve further investigation for their development into therapeutic agents for cognitive diseases such as Alzheimer.
Collapse
Affiliation(s)
- Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Kok Wai Lam
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd. Aziz, 50300 Kuala Lumpur, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Nordin H Lajis
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| |
Collapse
|
22
|
Mohd Aluwi MFF, Rullah K, Yamin BM, Leong SW, Abdul Bahari MN, Lim SJ, Mohd Faudzi SM, Jalil J, Abas F, Mohd Fauzi N, Ismail NH, Jantan I, Lam KW. Synthesis of unsymmetrical monocarbonyl curcumin analogues with potent inhibition on prostaglandin E2 production in LPS-induced murine and human macrophages cell lines. Bioorg Med Chem Lett 2016; 26:2531-2538. [DOI: 10.1016/j.bmcl.2016.03.092] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 01/21/2016] [Accepted: 03/25/2016] [Indexed: 12/19/2022]
|
23
|
Yousefi S, Bayat S, Rahman MBA, Ismail IS, Saki E, Leong SW, Abdulmalek E. Synthesis, bioactivity evaluation, and docking study of 5-aminosalicylic acid’s fatty acid derivatives. Monatsh Chem 2015. [DOI: 10.1007/s00706-015-1538-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
24
|
Leong SW, Mohd Faudzi SM, Abas F, Mohd Aluwi MFF, Rullah K, Lam KW, Abdul Bahari MN, Ahmad S, Tham CL, Shaari K, Lajis NH. Nitric oxide inhibitory activity and antioxidant evaluations of 2-benzoyl-6-benzylidenecyclohexanone analogs, a novel series of curcuminoid and diarylpentanoid derivatives. Bioorg Med Chem Lett 2015; 25:3330-7. [DOI: 10.1016/j.bmcl.2015.05.056] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 05/11/2015] [Accepted: 05/22/2015] [Indexed: 01/11/2023]
|
25
|
Leong SW, Faudzi SMM, Abas F, Aluwi MFFM, Rullah K, Wai LK, Bahari MNA, Ahmad S, Tham CL, Shaari K, Lajis NH. Synthesis and sar study of diarylpentanoid analogues as new anti-inflammatory agents. Molecules 2014; 19:16058-81. [PMID: 25302700 PMCID: PMC6271425 DOI: 10.3390/molecules191016058] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/15/2014] [Accepted: 09/18/2014] [Indexed: 12/16/2022] Open
Abstract
A series of ninety-seven diarylpentanoid derivatives were synthesized and evaluated for their anti-inflammatory activity through NO suppression assay using interferone gamma (IFN-γ)/lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Twelve compounds (9, 25, 28, 43, 63, 64, 81, 83, 84, 86, 88 and 97) exhibited greater or similar NO inhibitory activity in comparison with curcumin (14.7 ± 0.2 µM), notably compounds 88 and 97, which demonstrated the most significant NO suppression activity with IC50 values of 4.9 ± 0.3 µM and 9.6 ± 0.5 µM, respectively. A structure–activity relationship (SAR) study revealed that the presence of a hydroxyl group in both aromatic rings is critical for bioactivity of these molecules. With the exception of the polyphenolic derivatives, low electron density in ring-A and high electron density in ring-B are important for enhancing NO inhibition. Meanwhile, pharmacophore mapping showed that hydroxyl substituents at both meta- and para-positions of ring-B could be the marker for highly active diarylpentanoid derivatives.
Collapse
Affiliation(s)
- Sze Wei Leong
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Siti Munirah Mohd Faudzi
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Mohd Fadhlizil Fasihi Mohd Aluwi
- Drug and Herbal Research Centre Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd. Aziz, 50300 Kuala Lumpur, Malaysia.
| | - Kamal Rullah
- Drug and Herbal Research Centre Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd. Aziz, 50300 Kuala Lumpur, Malaysia.
| | - Lam Kok Wai
- Drug and Herbal Research Centre Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd. Aziz, 50300 Kuala Lumpur, Malaysia.
| | - Mohd Nazri Abdul Bahari
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Syahida Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Nordin H Lajis
- Al-Moalim BinLaden Chair for Scientific Miracles of Prophetic Medicine, Scientific Chairs Unit, Taibah University, P.O. Box 30001, Madinah al Munawarah 41311, Saudi Arabia.
| |
Collapse
|
26
|
Khan NA, Butany J, Leong SW, Rao V, Cusimano RJ, Ross HJ. Mitral valve-sparing procedures and prosthetic heart valve failure: a case report. Can J Cardiol 2009; 25:e86-8. [PMID: 19279993 DOI: 10.1016/s0828-282x(09)70050-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Prosthetic heart valve dysfunction due to thrombus or pannus formation can be a life-threatening complication. The present report describes a 47-year-old woman who developed valvular cardiomyopathy after chorda-sparing mitral valve replacement, and subsequently underwent heart transplantation for progressive heart failure. The explanted mitral valve prosthesis showed significant thrombus and pannus leading to reduced leaflet mobility and valvular stenosis. The present report illustrates the role of the subvalvular apparatus and pannus in prosthesis dysfunction.
Collapse
Affiliation(s)
- N A Khan
- Department of Pathology, Toronto General Hospital, University Health Network, Ontario, Canada
| | | | | | | | | | | |
Collapse
|
27
|
Abstract
Abdominal aortic aneurysms (AAAs) occur when weakened areas of the abdominal aortic wall result in a ballooning of the blood vessel. Attributed risk factors include smoking, atherosclerosis and hypertension. Traditionally, AAAs were treated with open surgery, involving a large abdominal incision and the placement of a synthetic graft. The introduction of endovascular aneurysm repair (EVAR) however, proved to have many advantages over open repair, chief among which is a lower perioperative morbidity and mortality rate. EVAR is likely to continue to evolve and the complications associated with this procedure will likely continue to decrease. In the meantime, the benefit of the continued, detailed analyses of explanted devices is twofold: (1) for future development of new devices; and (2) cognisance of complications that arise with any new device. This review is a guide to the many FDA approved stents which are commercially available, and those likely to become available following clinical trials.
Collapse
Affiliation(s)
- G S Soor
- Department of Pathology, Toronto General Hospital, University Health Network, Toronto, Canada
| | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
First introduced in the 1980s, the coronary stent has been used to reduce the rate of arterial restenosis. Coronary stent implantation is currently a common procedure performed by interventional cardiologists, and the market for development and design is constantly expanding and evolving. This article was designed to assist pathologists in the accurate identification of coronary stents that are currently available, in addition to some that are no longer being implanted. The stents reviewed here were chosen based on frequency of use and/or occurrence in the literature. Some of the newer models have yet to undergo extensive clinical testing. The summaries accompanying each stent include concise physical descriptions and documented complications, intended to serve as a guide for the investigating pathologist.
Collapse
Affiliation(s)
- J Butany
- Department of Pathology, Toronto General Hospital/University Health Network, Toronto Medical Laboratories, Toronto, ON M5G 2C4, Canada.
| | | | | | | |
Collapse
|
29
|
Karim N, Leong SW. Evaluation of nutritional status among a group of young Chinese adults in Kuala Lumpur, Malaysia. Asia Pac J Clin Nutr 2000; 9:82-6. [PMID: 24394392 DOI: 10.1046/j.1440-6047.2000.00145.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A nutritional status study was carried out among a group of young Chinese adults, aged between 19 and 25, in Kuala Lumpur, Malaysia. Subjects comprised 108 young adults (55 women, 53 men) who were students at two institutes of higher learning. Physical characteristics were evaluated by anthropometric measurements while food intake was determined with a 3-day food record. Blood cholesterol and triglyceride were assessed using the Reflotron analyser. Birthweight was obtained from birth certificates or by proxy. The results showed that the mean body mass index (BMI) for men and women was 21.4 ± 3.3 and 20.0 ± 2.0, respectively, indicating normal weight. Further analysis of BMI classification demonstrated that 28% of men and 39% of women were underweight, 11% of men and 2% of women were overweight while 2% of men were obese. Mean waist-to-hip ratio showed that the subjects had a low risk of developing cardiovascular disease (0.72 ± 0.03 women; 0.81 ± 0.05 men). Mean energy intake was 8841 ± 1756 kJ per day for men and 6426 ± 1567 kJ per day for women. Closer analysis of energy intake of the subjects showed that 86% of men and 91% of women were consuming below the Malaysian recommendation for energy. Nutrients found to be deficient in at least one third of women were calcium, vitamin A, niacin and iron. Mean cholesterol intake in the diet was 278.7 ± 108.7 mg in men and 207.0 ± 82.5 mg in women and there was a significant difference between genders. Blood cholesterol and triglyceride levels were 3.88 ± 0.76 mmol/L and 1.08 ± 0.33 mmol/L, respectively in men, while these levels were lower in women, 3.87 ± 0.80 mmol/L for cholesterol and 0.99 ± 0.29 mmol/L for triglyceride. A general trend of higher mean blood cholesterol and triglyceride levels was shown in adults who were born with lower birthweights.
Collapse
Affiliation(s)
- N Karim
- Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | |
Collapse
|
30
|
Abstract
A simple microtest for red cell (RBC) typing was developed which required 0.002 ml of reagents per test. After mixing RBCs with antibody, the microtray was incubated upside down for 10 to 15 minutes at 37 degrees C, and 10 minutes at room temperature. The trays were read after reinversion and allowing 10 to 15 minutes for the RBCs to settle. Antibodies must be selected that react under these conditions. Two examples each of anti-A, -B, -C, -D, -E, -c, -M, and -N were tested against a panel of 500 individuals. The results were generally concordant with each other and with the conventional tube test results. The procedure is simple to perform and involves minimal costs for reagent antisera.
Collapse
|