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Cheremnykh KP, Savelyev VA, Borisov SA, Ivanov ID, Baev DS, Tolstikova TG, Vavilin VA, Shults EE. Hybrides of Alkaloid Lappaconitine with Pyrimidine Motif on the Anthranilic Acid Moiety: Design, Synthesis, and Investigation of Antinociceptive Potency. Molecules 2020; 25:E5578. [PMID: 33261161 PMCID: PMC7730767 DOI: 10.3390/molecules25235578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/13/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022] Open
Abstract
Convenient and efficient routes to construct hybrid molecules containing diterpene alkaloid lappaconitine and pyrimidine fragments are reported. One route takes place via first converting of lappaconitine to 1-ethynyl-lappaconitine, followed by the Sonogashira cross-coupling-cyclocondensation sequences. The other involves the palladium-catalyzed carbonylative Sonogashira reaction of 5'-iodolappaconitine with aryl acetylene and Mo (CO)6 as the CO source in acetonitrile and subsequent cyclocondensation reaction of the generated alkynone with amidines. The reaction proceeded cleanly in the presence of the PdCl2-(1-Ad)2PBn∙HBr catalytic system. The protocol provides mild reaction conditions, high yields, and high atom and step-economy. Pharmacological screening of lappaconitine-pyrimidine hybrids for antinociceptive activity in vivo revealed that these compounds possessed high activity in experimental pain models, which was dependent on the nature of the substituent in the 2 and 6 positions of the pyrimidine nucleus. Docking studies were undertaken to gain insight into the possible binding mode of these compounds with the voltage-gated sodium channel 1.7. The moderate toxicity of the leading compound 12 (50% lethal dose (LD50) value was more than 600 mg/kg in vivo) and cytotoxicity to cancer cell lines in vitro encouraged the further design of therapeutically relevant analogues based on this novel type of lappaconitine-pyrimidine hybrids.
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Affiliation(s)
- Kirill P. Cheremnykh
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
| | - Victor A. Savelyev
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
| | - Sergey A. Borisov
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
| | - Igor D. Ivanov
- The Federal Research Center Insitute of Molecular Biology and Biophysics, 2/12, Timakov St., 630117 Novosibirsk, Russia; (I.D.I.); (V.A.V.)
| | - Dmitry S. Baev
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
| | - Tatyana G. Tolstikova
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
| | - Valentin A. Vavilin
- The Federal Research Center Insitute of Molecular Biology and Biophysics, 2/12, Timakov St., 630117 Novosibirsk, Russia; (I.D.I.); (V.A.V.)
| | - Elvira E. Shults
- Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Lavrentjev Avenue 9, 630090 Novosibirsk, Russia; (K.P.C.); (V.A.S.); (S.A.B.); (D.S.B.); (T.G.T.)
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Li YF, Zheng YM, Yu Y, Gan Y, Gao ZB. Inhibitory effects of lappaconitine on the neuronal isoforms of voltage-gated sodium channels. Acta Pharmacol Sin 2019; 40:451-459. [PMID: 29991710 PMCID: PMC6461957 DOI: 10.1038/s41401-018-0067-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/17/2018] [Indexed: 11/09/2022] Open
Abstract
Lappaconitine (LA) has been widely used for postoperative and cancer pain control. LA exhibits excellent analgesic activity with a longer effective time than common local anesthetics such as tetracaine and bupivacaine. However, the mechanisms underlying the featured analgesic activity of LA remain largely unknown. Here, we report that LA is an inhibitor of voltage-gated sodium channel 1.7 (Nav1.7) stably expressed in human embryonic kidney (HEK293) cells. LA inhibited Nav1.7 in a voltage-dependent manner with an IC50 value (with 95% confidence limits) of 27.67 (15.68-39.66) µmol/L when the cell was clamped at -70 mV. In comparison with the quick and reversible inhibition of Nav1.7 by tetracaine and bupivacaine, the inhibitory effect of LA was rather slow and irreversible. It took more than 10 min to achieve steady-state inhibition when LA (300 µmol/L) was administered. Unlike tetracaine and bupivacaine, LA affected neither the voltage-dependent activation nor the inactivation of the channels. Five residues in domain III and domain IV have been reported to be critical for the effects of the two local anesthetics on Nav channels. But our mutant study revealed that only two residues (F1737, N1742) located in domain IV were necessary for the inhibitory activity of LA. The slow onset, irreversibility, and lack of influence on channel activation and inactivation accompanied with the different molecular determinants suggest that LA may inhibit Nav1.7 channels in a manner different from local anesthetics. These results may help to understand the featured analgesic activity of LA, thus benefiting its application in the clinic and future drug development.
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Affiliation(s)
- Yan-Fen Li
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, 200444, China
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Yue-Ming Zheng
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Yu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yong Gan
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhao-Bing Gao
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Zhu XC, Ge CT, Wang P, Zhang JL, Yu YY, Fu CY. Analgesic effects of lappaconitine in leukemia bone pain in a mouse model. PeerJ 2015; 3:e936. [PMID: 26019998 PMCID: PMC4435501 DOI: 10.7717/peerj.936] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 04/15/2015] [Indexed: 12/04/2022] Open
Abstract
Bone pain is a common and severe symptom in cancer patients. The present study employed a mouse model of leukemia bone pain by injection K562 cells into tibia of mouse to evaluate the analgesic effects of lappacontine. Our results showed that the lappaconitine treatment at day 15, 17 and 19 could effectively reduce the spontaneous pain scoring values, restore reduced degree in the inclined-plate test induced by injection of K562 cells, as well as restore paw mechanical withdrawal threshold and paw withdrawal thermal latency induced by injection of K562 cells to the normal levels. Additionally, the molecular mechanisms of lappaconitine’s analgesic effects may be related to affect the expression levels of endogenous opioid system genes (POMC, PENK and MOR), as well as apoptosis-related genes (Xiap, Smac, Bim, NF-κB and p53). Our present results indicated that lappaconitine may become a new analgesic agent for leukemia bone pain management.
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Affiliation(s)
- Xiao-Cui Zhu
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
| | - Chen-Tao Ge
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
| | - Pan Wang
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
| | - Jia-Li Zhang
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
| | - Yuan-Yang Yu
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
| | - Cai-Yun Fu
- Lab of Proteomics & Molecular Enzymology, School of Life Sciences, Zhejiang Sci-Tech University , Hangzhou , China
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Wang FP, Chen QH. The C19-Diterpenoid Alkaloids. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 2010; 69:1-577, xi. [DOI: 10.1016/s1099-4831(10)69001-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Affiliation(s)
- Feng-Peng Wang
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China.
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Influence of a number of diterpene alkaloids on the calcium homeostasis of rat cardiomyocytes. Structure-activity relationship. Chem Nat Compd 1998. [DOI: 10.1007/bf02329600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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