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Abo-Elmagd MI, Hassan RM, Aboutabl ME, Amin KM, El-Azzouny AA, Aboul-Enein MN. Design, synthesis and anti-inflammatory assessment of certain substituted 1,2,4-triazoles bearing tetrahydroisoquinoline scaffold as COX 1/2-inhibitors. Bioorg Chem 2024; 150:107577. [PMID: 38941697 DOI: 10.1016/j.bioorg.2024.107577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/30/2024]
Abstract
Aiming to discover effective and safe non-steroidal anti-inflammatory agents, a new set of 1,2,4-triazole tetrahydroisoquinoline hybrids 9a-g, 11a-g and 12a-g was synthesized and evaluated as inhibitors of COX-1 and COX-2. In order to overcome the adverse effects of highly selective COX-2 and non-selective COX-2 inhibitors, the compounds of this study were designed with the goal of obtaining moderately selective COX-2 inhibitors. In this study compounds 9e, 9g and 11f are the most effective derivatives against COX-2 with IC50 values 0.87, 1.27 and 0.58 µM, respectively which are better than or comparable to the standard drug celecoxib (IC50 = 0.82 µM) but with lower selectivity indices as required by our goal design. The results of the in vivo anti-inflammatory inhibition test revealed that compounds 9e, 9g and 11f displayed a higher significant anti-inflammatory activity than celecoxib at all-time intervals. In addition, these compounds significantly decreased the production of inflammatory mediators PGE-2, TNF-ɑ and IL-6. Compounds 9e, 9g and 11f had a safe gastric profile compared to indomethacin, also compound 11f (ulcerogenic index = 1.33) was less ulcerous than the safe celecoxib (ulcerogenic index = 3). Moreover, histopathological investigations revealed a normal architecture of both paw skin and gastric mucosa after oral treatment of rats with compound 11f. Furthermore, molecular docking studies were performed on COX-1 and COX-2 to study the binding pattern of compounds 9e, 9g and 11f on both isoenzymes.
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Affiliation(s)
- Mai I Abo-Elmagd
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Rasha M Hassan
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Mona E Aboutabl
- Medicinal and Pharmaceutical Chemistry Department, Pharmacology Group, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Kamilia M Amin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Aida A El-Azzouny
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Mohamed N Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt.
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Zhao J, Bai J, Yu X, Zhang W, Zhao C, Ye J, Wei P, He K, Zou J. Synthesis, biological activities and mechanistic studies of C 20-ketone pachysandra alkaloids as anti-hepatocellular carcinoma agents. Mol Divers 2024:10.1007/s11030-024-10961-2. [PMID: 39158620 DOI: 10.1007/s11030-024-10961-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024]
Abstract
The pachysandra alkaloids found in Sarcococca ruscifolia demonstrate notable anti-hepatocellular carcinoma activity. Despite their efficacy, the structural diversity of these compounds remains limited, and their precise antitumor mechanism is still unclear. In pursuit of identifying novel lead compounds with high efficacy and low toxicity for combating hepatocellular carcinoma, twenty-three compounds of C20-ketone pachysandra alkaloid derivatives were designed and synthesized by using 3-dimethylamine pachysandra alkaloids as scaffolds. Subsequent in vitro anticancer activity experiments showed that synthetic pachysandra alkaloids had a stronger effect on HepG2 cells than did their natural counterparts, with low toxicity and high selectivity. The most potent derivative, 6k, had an IC50 value of 0.75 μM, demonstrating 25.7-fold greater anticancer activity than sarcovagine D against HepG2 cells. Through network pharmacology and molecular docking analysis, it was revealed that synthetic pachysandra alkaloids may exert their effects by inhibiting the JAK2/STAT3 pathway, thereby preventing the proliferation of liver cancer cells. Further research through scratch tests, immunofluorescence experiments, and Western blot analysis revealed that compound 6k effectively inhibited the migration of HepG2 cells and induced mitochondria-mediated intrinsic apoptosis of HepG2 cells by regulating the JAK2/STAT3 signaling pathway. The aforementioned results indicate that compound 6k could be developed as a potential candidate for the treatment of hepatocellular carcinoma.
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Affiliation(s)
- JinFeng Zhao
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Jing Bai
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Xiang Yu
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - WenWen Zhang
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
- Shandong Hongjitang Pharmaceutical Group Co., Ltd., Jinan, China
| | - ChenLiang Zhao
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - JiangHai Ye
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Peng Wei
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Kang He
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China.
| | - Juan Zou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China.
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Faheem, Karan Kumar B, Venkata Gowri Chandra Sekhar K, Chander S, Kunjiappan S, Murugesan S. 1,2,3,4-Tetrahydroisoquinoline (THIQ) as privileged scaffold for anticancer de novo drug design. Expert Opin Drug Discov 2021; 16:1119-1147. [PMID: 33908322 DOI: 10.1080/17460441.2021.1916464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction: Cancer is a dreadful disorder that is emerging as one of the leading causes of mortality across the globe. The complex tumor environment, supplemented with drawbacks of the existing drugs, has made it a global health concern. The Tetrahydroisoquinoline (THIQ) ring holds an important position in medicinal chemistry due to its wide range of pharmacological properties. Several THIQ based natural products have been previously explored for their antitumor properties, making it a vital scaffold for anticancer drug design.Areas covered: This review article addresses the potential of THIQ as anticancer agents. Various medicinal chemistry strategies employed for the design and development of THIQ analogs as inhibitors or modulators of relevant anticancer targets have been discussed in detail. Moreover, the common strategies employed for the synthesis of the core scaffold are also highlighted.Expert opinion: Evidently, THIQs have tremendous potential in anticancer drug design. Some of these analogs exhibited potent activity against various cancer molecular targets. However, there are some drawbacks, such as selectivity that need addressing. The synthetic ease for constructing the core scaffold complimented with its reactivity makes it ideal for further structure-activity relationship studies. For these reasons, THIQ is a privileged scaffold for the design and development of novel anticancer agents.
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Affiliation(s)
- Faheem
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Pilani, India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Pilani, India
| | | | - Subhash Chander
- Amity Institute of Phytomedicine and Phytochemistry, Amity University Uttar Pradesh, Noida, India
| | - Selvaraj Kunjiappan
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil, India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Pilani, India
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Paiva Ferreira LKD, Paiva Ferreira LAM, Bezerra Barros GC, Mozzini Monteiro T, de Araújo Silva LA, Pereira RDA, Figueiredo PTR, Alves AF, Rodrigues LC, Piuvezam MR. MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice. Int Immunopharmacol 2021; 96:107590. [PMID: 33857802 DOI: 10.1016/j.intimp.2021.107590] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/24/2021] [Accepted: 03/11/2021] [Indexed: 01/16/2023]
Abstract
The combined allergic rhinitis and asthma syndrome (CARAS) is a chronic airway inflammation of allergic individuals, with a type 2 immune response. Pharmacotherapy is based on drugs with relevant side effects. Thus, the goal of this study was to evaluate the synthetic alkaloid, MHTP in the experimental model of CARAS. Therefore, BALB/c mice were ovalbumin (OVA) -sensitized and -challenged and treated with MHTP by intranasal or oral routes. Treated animals showed a decrease (p < 0.05) of sneezing, nasal rubbings, and histamine nasal hyperactivity. Besides, MHTP presented binding energy and favorable interaction for adequate anchoring in the histamine H1 receptor. MHTP treatment inhibited the eosinophil migration into the nasal (NALF) and the bronchoalveolar (BALF) fluids. Histological analysis showed that the alkaloid decreased the inflammatory cells in the subepithelial and perivascular regions of nasal tissue and in the peribronchiolar and perivascular regions of lung tissue. The MHTP treatment also reduced the pulmonary hyperactivity by decreasing the smooth muscle layer hypertrophy and the collagen fiber deposition in the extracellular matrix. The immunomodulatory effect of the alkaloid was due to the decrease of cytokines like IL-5 and IL-17A (type 2 and 3), TSLP (epithelial), and the immunoregulatory cytokine, TGF-β. These MHTP effects on granulocytes were dependent on the p38/ERK1/2 MAP kinase signaling pathway axis. Indeed, the synthetic alkaloid reduced the frequency of activation of both kinases independent of the NF-κB (p65) pathway indicating that the molecule shut down the intracellular transduction signals underlie the cytokine gene transcription.
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Affiliation(s)
- Laércia K D Paiva Ferreira
- Laboratory of Immunopharmacology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Larissa A M Paiva Ferreira
- Laboratory of Immunopharmacology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Grasiela C Bezerra Barros
- Laboratory of Immunopharmacology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | | | - Luiz A de Araújo Silva
- Biotechnology Center, Federal University of Paraíba, Laboratory of Organic Synthesis, Postgraduate Program in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ramon de A Pereira
- Institute of Biological Sciences (ICB), Federal University of Minas Gerais, Department of General Pathology, Belo Horizonte, MG, Brazil
| | - Pedro T R Figueiredo
- Drug Research Institute of the Federal University of Paraíba, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Adriano Francisco Alves
- Department of Physiology and Pathology, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Luís Cezar Rodrigues
- Biotechnology Center, Federal University of Paraíba, Laboratory of Organic Synthesis, Postgraduate Program in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Marcia Regina Piuvezam
- Laboratory of Immunopharmacology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil; Department of Physiology and Pathology, Federal University of Paraíba, João Pessoa, PB, Brazil.
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MHTP, a synthetic tetratetrahydroisoquinoline alkaloid, attenuates lipopolysaccharide-induced acute lung injury via p38MAPK/p65NF-κB signaling pathway-TLR4 dependent. Inflamm Res 2019; 68:1061-1070. [DOI: 10.1007/s00011-019-01291-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 07/24/2019] [Accepted: 10/02/2019] [Indexed: 01/07/2023] Open
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Paiva Ferreira LKD, Paiva Ferreira LAM, Alves AF, Leite FC, de Araújo Silva LA, Vieira GC, Rodrigues LC, Piuvezam MR. MHTP, 2-Methoxy-4-(7-methoxy-1,2,3,4-tetrahydroisoquinolin-1-yl) phenol, a Synthetic Alkaloid, Induces IFN-γ Production in Murine Model of Ovalbumin-Induced Pulmonary Allergic Inflammation. Inflammation 2019; 41:2116-2128. [PMID: 30032472 DOI: 10.1007/s10753-018-0855-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MHTP [2-methoxy-4-(7-methoxy-1,2,3,4-tetrahydroisoquinolin-1-yl) phenol], a synthetic isoquinolinic alkaloid, presented anti-inflammatory activity in several experimental models of acute inflammation as lipopolysaccharide (LPS)-induced acute lung injury and phlogistic agent-induced edema and presented low preclinical toxicity. The aim of this study was to determine the MHTP effect on ovalbumin (OVA)-induced pulmonary allergic inflammation. In other to realize this study, female BALFB/c mice were sensitized and challenged with OVA (OVA group) and treated with MHTP (MHTP group) by nasal instillation. Inflammatory, allergic, and immunomodulatory parameters such as migration of inflammatory cells to the lung tissue, pulmonary histological analysis, serum level of IgE-allergen specific, cytokine secretion, and lung T cell population characterization were analyzed and the data were considered statistically significant with p < 0.05. OVA-sensitized and OVA-challenged and MHTP (5.0 mg/kg)-treated mice presented reduction on total leukocyte migration into the bronchoalveolar lavage (BALF) dependent of lymphocyte and eosinophil migration (p < 0.001 and p < 0.01) as compared with the OVA group. Flow cytometric analysis showed that MHTP treatment decreased the percentage of granulocytes (p < 0.001) into the BALF and lung tissue histological analyzes demonstrated that the MHTP treatment decreased leukocyte migration and mucus production. In addition, treatment with MHTP decreased the number of CD3+CD4+ T cells independently of CD8+ T cell reduction into the BALF. The treatment also reduced significantly (p < 0.05) the serum level of IgE-OVA specific followed by reduction of IL-4, IL-13, and IL-17 production. Surprisingly, the MHTP treatment increased significantly (p < 0.05) the IFN-γ production in the BALF of these animals. Therefore, the results presented here showed that MHTP treatment, by nasal instillation, in a mouse model of OVA-induced pulmonary allergy has anti-allergic and immunomodulatory effects dependent on a Th1-skewed cytokine production that ameliorate the pulmonary allergic inflammation.
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Affiliation(s)
- Laércia K D Paiva Ferreira
- Department of Physiology and Pathology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Larissa A M Paiva Ferreira
- Department of Physiology and Pathology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Adriano Francisco Alves
- Department of Physiology and Pathology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | | | - Luiz A de Araújo Silva
- Postgraduate Program in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Giciane Carvalho Vieira
- Department of Morphology, Health Sciences Center, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Luís Cezar Rodrigues
- Postgraduate Program in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Marcia Regina Piuvezam
- Department of Physiology and Pathology, Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, Brazil.
- Universidade Federal da Paraíba, Campus I, PO 5009, João Pessoa, PB, 58-051-970, Brazil.
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Chen Y, Su C, Wang L, Qin J, Wei S, Tang H. Hybrids of oxoisoaporphine-tetrahydroisoquinoline: novel multi-target inhibitors of inflammation and amyloid-β aggregation in Alzheimer's disease. Mol Divers 2019; 23:709-722. [PMID: 30603938 DOI: 10.1007/s11030-018-9905-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 12/06/2018] [Indexed: 01/30/2023]
Abstract
A series of 8- and 11-substituted hybrids of oxoisoaporphine-tetrahydroisoquinoline have been designed and synthesized. The new derivatives strongly suppressed NO and iNOS production and modulated the production of cytokines by decreasing TNF-α and IL-1β formation in lipopolysaccharide-activated BV-2 microglia and RAW 264.7 macrophages. Meanwhile, incubation of these derivatives with SH-SY5Y cells that were transfected with human APP containing the Swedish mutations significantly decreased the secretion of Aβ42. Moreover, these hybrids could strongly inhibit the activity of acetylcholinesterase and butyrylcholinesterase. Further investigations in vivo indicated that the 8-substituted hybrid 3b significantly delayed paralysis caused by Aβ1-42 toxicity in GMC101. In sum, these new hybrids could target multiple pathogenetic factors in Alzheimer's disease and merit further investigation.
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Affiliation(s)
- Yusi Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China
| | - Chunlin Su
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China
| | - Li Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China
| | - Jingfang Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China
| | - Shenqi Wei
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China
| | - Huang Tang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin City, Guangxi, China.
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Milonine, a Morphinandienone Alkaloid, Has Anti-Inflammatory and Analgesic Effects by Inhibiting TNF-α and IL-1β Production. Inflammation 2018; 40:2074-2085. [PMID: 28801761 DOI: 10.1007/s10753-017-0647-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Milonine is a morphinandienone alkaloid from Cissampelos sympodialis Eichl (Menispermaceae), a plant used in Brazil to treat inflammatory disorders. In this study, we evaluated the anti-inflammatory and analgesic activity of milonine (MIL) by using classical experimental models of inflammation and nociception. The results showed that MIL reduced the paw edema formation induced by lipopolysaccharide, prostaglandin E2, and bradykinin, without interfering with the serotonin-induced edema. With respect to the nociception experiments, MIL decreased the exudate into the peritoneum induced by acetic acid, maintaining the tissue morphology. The alkaloid was able to inhibit the peritonitis induced by carrageenan, decreasing mainly the migration of polymorphonuclear cells, without altering the mononuclear cell number, and reduced the levels of TNF-α and IL-1β in the peritoneum. In addition, MIL was able to decrease the frequency of abdominal writhing induced by acetic acid but did not increase the latency time of the animals in the hot plate test. MIL significantly reduced the nociceptive behavior of paw licking induced by formalin only at the second phase of the test. In conclusion, we demonstrate that milonine has anti-inflammatory and anti-nociceptive activities by inhibiting mediators essential for the inflammatory process.
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RX-207, a Small Molecule Inhibitor of Protein Interaction with Glycosaminoglycans (SMIGs), Reduces Experimentally Induced Inflammation and Increases Survival Rate in Cecal Ligation and Puncture (CLP)-Induced Sepsis. Inflammation 2017; 41:307-314. [DOI: 10.1007/s10753-017-0688-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Recent Trends in Pharmacological Activity of Alkaloids in Animal Colitis: Potential Use for Inflammatory Bowel Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8528210. [PMID: 28191024 PMCID: PMC5278565 DOI: 10.1155/2017/8528210] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/30/2016] [Accepted: 11/24/2016] [Indexed: 11/24/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic and disrupted inflammation of the gastrointestinal tract. IBD have two main conditions, Crohn's disease and ulcerative colitis, and have been extensively investigated in recent years. Antibiotics derived from salicylates, steroids, immunosuppressors, and anti-TNF therapy are part of the therapeutic arsenal for IBD. However, very often patients stop responding to treatments over the time. In this context, searching for alternative agents is crucial for IBD clinical management. Natural products derived from medicinal plants are an interesting therapeutic alternative, since several studies have proven effective treatments in animal models of intestinal inflammation. Several naturally occurring compounds are potent antioxidants, both as free radical scavengers and as modulators of antioxidant enzymes expression and activity. A number of natural compounds have also been proved to inhibit the release of proinflammatory cytokines, decreasing the activation of nuclear factor κB (NF-κB), which is important to the inflammatory response in IBD. The alkaloids are substances of a very diverse class of plant secondary metabolites; an extensive list of biological activities has been attributed to alkaloids, such as being anticholinergic, antitumor, diuretic, antiviral, antihypertensive, antiulcer, analgesic, and anti-inflammatory. In the present work, studies on the pharmacological activity of alkaloids in experimental models of IBD were reviewed.
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Tang D, Wang F, Tang J, Mao A, Liao S, Wang Q. Dicranostiga leptopodu (Maxim.) Fedde extracts attenuated CCl 4-induced acute liver damage in mice through increasing anti-oxidative enzyme activity to improve mitochondrial function. Biomed Pharmacother 2016; 85:763-771. [PMID: 27923690 DOI: 10.1016/j.biopha.2016.11.097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 11/13/2016] [Accepted: 11/24/2016] [Indexed: 12/14/2022] Open
Abstract
Dicranostiga Leptodu (Maxim.) fedde (DLF), a poppy plant, has been reported have many benefits and medicinal properties, including free radicals scavenging and detoxifying. However, the protective effect of DLF extracts against carbon tetrachloride (CCl4)-induced damage in mice liver has not been elucidated. Here, we demonstrated that DLF extracts attenuated CCl4-induced liver damage in mice through increasing anti-oxidative enzyme activity to improve mitochondrial function. In this study, the mice liver damage evoked by CCl4 was marked by morphology changes, significant rise in lipid peroxidation, as well as alterations of mitochondrial respiratory function. Interestingly, pretreatment with DLF extracts attenuated CCl4-induced morphological damage and increasing of lipid peroxidation in mice liver. Additionally, DLF extracts improved mitochondrial function by preventing the disruption of respiratory chain and suppression of mitochondrial Na+K+-ATPase and Ca2+-ATPase activity. Furthermore, administration with DLF extracts elevated superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) levels and maintained the balance of redox status. This results showed that toxic protection effect of DLF extracts on mice liver is mediated by improving mitochondrial respiratory function and keeping the balance of redox status, which suggesting that DLF extracts could be used as potential toxic protection agent for the liver against hepatotoxic agent.
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Affiliation(s)
- Deping Tang
- School of Chemical & Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Fang Wang
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China
| | - Jinzhou Tang
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China; School of life science, Lanzhou University, Lanzhou 730000, PR China
| | - Aihong Mao
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China; School of life science, Lanzhou University, Lanzhou 730000, PR China.
| | - Shiqi Liao
- Institute of Gansu Medical Science Research, Lanzhou 730050, PR China
| | - Qin Wang
- School of life science, Lanzhou University, Lanzhou 730000, PR China
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