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Fobi K, Ametsetor E, Bunce RA. A [3+3] Aldol-S NAr-Dehydration Approach to 2-Naphthol and 7-Hydroxyquinoline Derivatives. Molecules 2024; 29:3406. [PMID: 39064984 DOI: 10.3390/molecules29143406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 07/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
A one-pot [3+3] aldol-SNAr-dehydration annulation sequence was utilized to fuse hindered phenols onto aromatic substrates. The transformation joins doubly activated 1,3-disubstituted acetone derivatives (dinucleophiles) with C5-activated 2-fluorobenzaldehyde SNAr acceptors (dielectrophiles) in the presence of K2CO3 in DMF at 65-70 °C to form polysubstituted 2-naphthols and 7-hydroxyquinolines. The reaction is regioselective in adding the most stable anionic center to the aldehyde followed by SNAr closure of the less stabilized anion to the electron-deficient aromatic ring. Twenty-seven examples are reported, and a probable mechanism is presented. In two cases where SNAr activation on the acceptor ring was lower (a C5 trifluoromethyl group on the aromatic ring or a 2-fluoropyridine), diethyl 1,3-acetonedicarboxylate initiated an interesting Grob-type fragmentation to give cinnamate esters as the products.
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Affiliation(s)
- Kwabena Fobi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA
| | - Ebenezer Ametsetor
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA
| | - Richard A Bunce
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA
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Vafaei S, Mirzaie V, Baghalishahi M, Mousanejad E, Nematollahi-mahani SN. Effects of crocin on the enhancement of in vitro neurogenesis: Involvement of Notch and CREB/BDNF signaling pathways. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2024; 27:914-922. [PMID: 38800026 PMCID: PMC11127084 DOI: 10.22038/ijbms.2024.76308.16513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/30/2023] [Indexed: 05/29/2024]
Abstract
Objectives Adult neurogenesis, the process of generating new neurons, continues throughout life. Unfortunately, this process is insufficient in pathological conditions and needs to be promoted. Crocin, the active component of saffron, affects neurogenesis in vivo and in vitro. We aimed to investigate the enhancing effects of crocin on the neurogenesis of adipose-derived mesenchymal stem cells in the presence of retinoic acid, as well as the molecular pathways involved. Materials and Methods Differentiation capacities and stemness potential of harvested ADSCs were evaluated by differentiating into osteocytes and adipocytes, and expression of mesenchymal CD markers by flow cytometry. The optimum dose of crocin was assessed with an MTT assay. Crocin, retinoic acid, CREB/BDNF, and Notch inhibitors and their combination were added to the culture medium. Jag1, Hes1, Notch, and BDNF gene expression were analyzed by RT-PCR on days 7, 14, and 21, while CREB, DCX, SOX2, and NeuN expression were analyzed by immunofluorescence. Results Expression of mesenchymal CD markers as well as adipogenic and osteogenic differentiation confirmed the origin and properties of ADSCs. The optimal dose of crocin was 1 mM. Crocin significantly (P<0.05) increased, while inhibitors (DATP&Naphthol) significantly (P<0.05) decreased Jag1, Hes1, Notch, and BDNF expression. Immunofluorescent assessments showed that expression of DCX, BDNF, NeuN, and Sox2 proteins increased significantly (P<0.05) after crocin administration and decreased significantly (P<0.05) after inhibitor administration. Conclusion Crocin can be used as an enhancer for neural differentiation of MSCs in vitro in the presence of retinoic acid. The mechanism is proposed through Notch and CREB/BDNF signaling pathways.
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Affiliation(s)
- Shayan Vafaei
- Department of Anatomical Science, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Vida Mirzaie
- Department of Anatomical Science, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoumeh Baghalishahi
- Department of Anatomical Science, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Elahe Mousanejad
- Department of Anatomical Science, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Seyed Noureddin Nematollahi-mahani
- Department of Anatomical Science, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Kerman Neuroscience Research Center (KNRC), Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Afzal Research Institute (NGO), Kerman, Iran
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Sahidin I, Sadarun B, Wahyuni W, Muhammad Julian Purnama LO, Rahmatika NS, Malaka MH, Malik F, Fristiohady A. In vivo Anti-Inflammatory and Immunomodulatory Activity of Soft Coral Nephthea sp. from Southeast Sulawesi. Pak J Biol Sci 2023; 26:403-408. [PMID: 37937333 DOI: 10.3923/pjbs.2023.403.408] [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] [Indexed: 11/09/2023]
Abstract
<b>Background and Objective:</b> <i>Nephthea</i> sp., has various biological activities. The study on anti-inflammatory and immunomodulatory of <i>Nephthea</i> sp., from Southeast Sulawesi is still limited. Hence, this study aims to determine the content of secondary metabolite compounds and their pharmacological activities including anti-inflammatory and immunomodulatory. <b>Materials and Methods:</b> <i>Nephthea</i> sp., was collected from Saponda Island and extracted using ethyl acetate. The chemical contents were analyzed by a phytochemical screening test, anti-inflammatory activity by xylene-induced ear edema and immunomodulatory activity using macrophage phagocytic activity (SPA) in experimental animals. <b>Results:</b> The ethyl acetate extract of <i>Nephthea</i> sp., contains flavonoids and steroids. According to the result obtained, the ethyl acetate extract of <i>Nephthea</i> sp., exhibited anti-inflammatory and immunomodulatory activity <i>in vivo</i>. The EAN 0.2 demonstrated the highest potency and showed no significant difference compared to diclofenac sodium at a concentration of 0.15 mg mL<sup>1</sup> (p>0.05) with the highest percentage edema inhibition as in xylene-induced ear edema. In addition, EAN 0.2 exhibited a similar result in increasing SPA compared to control (p>0.05). Both assays showed significant differences with negative control in this study (p<0.05). <b>Conclusion:</b> Soft coral <i>Nephthea</i> sp., can be a potential candidate as an anti-inflammatory and immunomodulatory agent.
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Ahmed MB, Alghamdi AAA, Islam SU, Lee JS, Lee YS. cAMP Signaling in Cancer: A PKA-CREB and EPAC-Centric Approach. Cells 2022; 11:cells11132020. [PMID: 35805104 PMCID: PMC9266045 DOI: 10.3390/cells11132020] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/17/2022] [Accepted: 06/23/2022] [Indexed: 02/01/2023] Open
Abstract
Cancer is one of the most common causes of death globally. Despite extensive research and considerable advances in cancer therapy, the fundamentals of the disease remain unclear. Understanding the key signaling mechanisms that cause cancer cell malignancy may help to uncover new pharmaco-targets. Cyclic adenosine monophosphate (cAMP) regulates various biological functions, including those in malignant cells. Understanding intracellular second messenger pathways is crucial for identifying downstream proteins involved in cancer growth and development. cAMP regulates cell signaling and a variety of physiological and pathological activities. There may be an impact on gene transcription from protein kinase A (PKA) as well as its downstream effectors, such as cAMP response element-binding protein (CREB). The position of CREB downstream of numerous growth signaling pathways implies its oncogenic potential in tumor cells. Tumor growth is associated with increased CREB expression and activation. PKA can be used as both an onco-drug target and a biomarker to find, identify, and stage tumors. Exploring cAMP effectors and their downstream pathways in cancer has become easier using exchange protein directly activated by cAMP (EPAC) modulators. This signaling system may inhibit or accelerate tumor growth depending on the tumor and its environment. As cAMP and its effectors are critical for cancer development, targeting them may be a useful cancer treatment strategy. Moreover, by reviewing the material from a distinct viewpoint, this review aims to give a knowledge of the impact of the cAMP signaling pathway and the related effectors on cancer incidence and development. These innovative insights seek to encourage the development of novel treatment techniques and new approaches.
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Affiliation(s)
- Muhammad Bilal Ahmed
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (M.B.A.); (J.-S.L.)
| | | | - Salman Ul Islam
- Department of Pharmacy, Cecos University, Peshawar, Street 1, Sector F 5 Phase 6 Hayatabad, Peshawar 25000, Pakistan;
| | - Joon-Seok Lee
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (M.B.A.); (J.-S.L.)
| | - Young-Sup Lee
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (M.B.A.); (J.-S.L.)
- Correspondence: ; Tel.: +82-53-950-6353; Fax: +82-53-943-2762
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Tang C, Liu D, Fan Y, Yu J, Li C, Su J, Wang C. Visualization and bibliometric analysis of cAMP signaling system research trends and hotspots in cancer. J Cancer 2021; 12:358-370. [PMID: 33391432 PMCID: PMC7738981 DOI: 10.7150/jca.47158] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 10/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cyclic adenosine monophosphate (cAMP) is an essential second messenger that widely distributed among prokaryotic and eukaryotic organisms. cAMP can regulate various biological processes, including cell proliferation, differentiation, apoptosis and immune functions. Any dysregulation or alteration of cAMP signaling may cause cell metabolic disorder, immune dysfunction and lead to disease or cancer. This study aimed to conduct a scientometric analysis of cAMP signaling system in cancer field, and explored the research trend, hotspots and frontiers from the past decade. Relevant literatures published from 2009 to 2019 were collected in the Web of Science Core Collection database. EndNote X9 was used to remove duplicate articles, and irrelevant articles were manually filtered. Bibliometric analyses were completed by CiteSpace V. A total of 4306 articles were included in this study. The number of related literatures published each year is gradually increasing. Most of them belong to “Biochemistry & Molecular Biology”, “Oncology”, “Cell Biology”, “Pharmacology & Pharmacy” and “Endocrinology & Metabolism” areas. In the past decade, USA, China, and Japan contributed the most to the research of cAMP signaling system in cancer. The frontiers and hotspots of cAMP signaling pathway system related to cancer fields mainly focused on cancer cell apoptosis, metastasis, and multiple tumors occurrence in patients with Carney complex. Intervention of the cAMP metabolic pathway may be a potential and promising therapeutic strategy for controlling clinical cancer and tumor diseases.
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Affiliation(s)
- Caoli Tang
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
| | - Duanya Liu
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
| | - Yongsheng Fan
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
| | - Jun Yu
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
| | - Cong Li
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
| | - Jianmei Su
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China.,Key Laboratory of Regional Development and Environmental Response, Faculty of Resources and Environmental Science, Hubei University, Friendship Avenue 368, Wuhan 430062, Hubei, China
| | - Chunhong Wang
- Department of Preventive Medicine, School of Public Health, Wuhan University, Donghu Road 115, Wuhan 430071, Hubei, China
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Steven A, Friedrich M, Jank P, Heimer N, Budczies J, Denkert C, Seliger B. What turns CREB on? And off? And why does it matter? Cell Mol Life Sci 2020; 77:4049-4067. [PMID: 32347317 PMCID: PMC7532970 DOI: 10.1007/s00018-020-03525-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/21/2020] [Accepted: 04/06/2020] [Indexed: 12/16/2022]
Abstract
Altered expression and function of the transcription factor cyclic AMP response-binding protein (CREB) has been identified to play an important role in cancer and is associated with the overall survival and therapy response of tumor patients. This review focuses on the expression and activation of CREB under physiologic conditions and in tumors of distinct origin as well as the underlying mechanisms of CREB regulation by diverse stimuli and inhibitors. In addition, the clinical relevance of CREB is summarized, including its use as a prognostic and/or predictive marker as well as a therapeutic target.
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Affiliation(s)
- André Steven
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Michael Friedrich
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Paul Jank
- Institute of Pathology, Philipps University Marburg, 35043, Marburg, Germany
| | - Nadine Heimer
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Jan Budczies
- Institute of Pathology, University Clinic Heidelberg, 69120, Heidelberg, Germany
| | - Carsten Denkert
- Institute of Pathology, Philipps University Marburg, 35043, Marburg, Germany
| | - Barbara Seliger
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany.
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7
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Mechanistic insights into the activation of ester prodrugs of 666-15. Bioorg Med Chem Lett 2020; 30:127455. [PMID: 32730943 DOI: 10.1016/j.bmcl.2020.127455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 02/06/2023]
Abstract
cAMP-response element binding protein (CREB) is an oncogenic transcription factor implicated in many different types of cancer. We previously reported the discovery of 666-15 as a potent inhibitor of CREB-mediated gene transcription. In an effort to improve the aqueous solubility of 666-15, amino ester prodrugs 1 and 4 were designed and synthesized. Detailed chemical and biological studies of 1 and 4 revealed that a small portion of the prodrugs were converted into 666-15 through intermediate 3 instead of a long-range O,N-acyl transfer reaction that was initially proposed. These results provide unique insights into the activation of these ester prodrugs.
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Xu WW, Huang Z, Liao L, Zhang Q, Li J, Zheng C, He Y, Luo T, Wang Y, Hu H, Zuo Q, Chen W, Yang Q, Zhao J, Qin Y, Xu L, Li E, Liao H, Li B, He Q. Direct Targeting of CREB1 with Imperatorin Inhibits TGF β2-ERK Signaling to Suppress Esophageal Cancer Metastasis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000925. [PMID: 32832354 PMCID: PMC7435243 DOI: 10.1002/advs.202000925] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/31/2020] [Indexed: 02/05/2023]
Abstract
Metastasis accounts for 90% of cancer death worldwide, and effective therapeutic strategies are lacking. The aim of this work is to identify the key drivers in tumor metastasis and screen therapeutics for treatment of esophageal squamous cell carcinoma (ESCC). Gene Ontology analysis of The Cancer Genome Atlas (TCGA) gene expression datasets of ESCC patients with or without lympy metastasis identifies that TGFβ2 is highly enriched in the pathways essential for tumor metastasis and upregulates in the metastatic ESCC tumors. High TGFβ2 expression in ESCC correlates with metastasis and patient survival, and functionally contributes to tumor metastasis via activating extracellular signal-regulated kinases (ERK) signaling. By screening of a library consisting of 429 bioactive compounds, imperatorin is verified as a novel TGFβ2 inhibitor, with robustly suppressive effect on tumor metastasis in multiple mice models. Mechanistically, direct binding of imperatorin and CREB1 inhibits phosphorylation, nuclear translocation of CREB1, and its interaction with TGFβ2 promoter, represses TGFβ2 expression and fibroblasts-secreted CCL2, and then inactivates ERK signaling to block cancer invasion and abrogates the paracrine effects of fibroblasts on tumor angiogenesis and metastasis. Overall, the findings suggest the use of TGFβ2 as a diagnostic and prognostic biomarker and therapeutic target in ESCC, and supports the potential of imperatorin as a novel therapeutic strategy for cancer metastasis.
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Affiliation(s)
- Wen Wen Xu
- MOE Key Laboratory of Tumor Molecular Biology and Guangdong Provincial Key Laboratory of Bioengineering MedicineNational Engineering Research Center of Genetic MedicineInstitute of BiomedicineCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Zhi‐Hao Huang
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Long Liao
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Qi‐Hua Zhang
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Jun‐Qi Li
- MOE Key Laboratory of Tumor Molecular Biology and Guangdong Provincial Key Laboratory of Bioengineering MedicineNational Engineering Research Center of Genetic MedicineInstitute of BiomedicineCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Can‐Can Zheng
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Yan He
- MOE Key Laboratory of Tumor Molecular Biology and Guangdong Provincial Key Laboratory of Bioengineering MedicineNational Engineering Research Center of Genetic MedicineInstitute of BiomedicineCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Ting‐Ting Luo
- MOE Key Laboratory of Tumor Molecular Biology and Guangdong Provincial Key Laboratory of Bioengineering MedicineNational Engineering Research Center of Genetic MedicineInstitute of BiomedicineCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Yang Wang
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Hui‐Fang Hu
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Qian Zuo
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Wen‐You Chen
- Department of Thoracic SurgeryFirst Affiliated HospitalJinan UniversityGuangzhou510632China
| | - Qing‐Sheng Yang
- Department of Thoracic SurgeryFirst Affiliated HospitalJinan UniversityGuangzhou510632China
| | - Jian‐Fu Zhao
- Department of Clinical OncologyFirst Affiliated HospitalJinan UniversityGuangzhou510632China
| | - Yan‐Ru Qin
- State Key Laboratory of Esophageal Cancer Prevention and TreatmentDepartment of Clinical OncologyFirst Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Li‐Yan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan AreaShantou University Medical College22 Xinling RoadShantouGuangdongChina
| | - En‐Min Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan AreaShantou University Medical College22 Xinling RoadShantouGuangdongChina
| | - Hua‐Xin Liao
- MOE Key Laboratory of Tumor Molecular Biology and Guangdong Provincial Key Laboratory of Bioengineering MedicineNational Engineering Research Center of Genetic MedicineInstitute of BiomedicineCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Bin Li
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Qing‐Yu He
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education InstitutesInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
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Sahoo SR, Sarkar D. Revisiting the Addition of in-situ Nucleophiles to Allenic Ketones: An Entry Towards Synthesis of Benzodioxins. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sushree Ranjan Sahoo
- Department of Chemistry; National Institute of Technology; Pin-769008 Rourkela Odisha India
| | - Debayan Sarkar
- Department of Chemistry; National Institute of Technology; Pin-769008 Rourkela Odisha India
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Abstract
The cyclic-AMP response element binding protein (CREB) is an important nuclear transcription factor and has been shown to be overexpressed and/or over-activated in many different cancer types, suggesting that targeting CREB is a novel approach for developing cancer therapies. Our lab discovered the first cell-permeable small molecule inhibitor of CREB, from which we further developed a potent CREB inhibitor with in vivo anti-cancer activity. In this article, we detailed our biochemical and cell-based bioassays to assess different small molecule CREB inhibitors.
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Affiliation(s)
- Bingbing X Li
- Program in Chemical Biology, Department of Chemical Physiology and Biochemistry, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, United States.
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Chemical Physiology and Biochemistry, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, United States.
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Hagenow J, Hagenow S, Grau K, Khanfar M, Hefke L, Proschak E, Stark H. Reversible Small Molecule Inhibitors of MAO A and MAO B with Anilide Motifs. Drug Des Devel Ther 2020; 14:371-393. [PMID: 32099324 PMCID: PMC6996489 DOI: 10.2147/dddt.s236586] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Ligands consisting of two aryl moieties connected via a short spacer were shown to be potent inhibitors of monoamine oxidases (MAO) A and B, which are known as suitable targets in treatment of neurological diseases. Based on this general blueprint, we synthesized a series of 66 small aromatic amide derivatives as novel MAO A/B inhibitors. METHODS The compounds were synthesized, purified and structurally confirmed by spectroscopic methods. Fluorimetric enzymological assays were performed to determine MAO A/B inhibition properties. Mode and reversibility of inhibition was determined for the most potent MAO B inhibitor. Docking poses and pharmacophore models were generated to confirm the in vitro results. RESULTS N-(2,4-Dinitrophenyl)benzo[d][1,3]dioxole-5-carboxamide (55, ST-2043) was found to be a reversible competitive moderately selective MAO B inhibitor (IC50 = 56 nM, Ki = 6.3 nM), while N-(2,4-dinitrophenyl)benzamide (7, ST-2023) showed higher preference for MAO A (IC50 = 126 nM). Computational analysis confirmed in vitro binding properties, where the anilides examined possessed high surface complementarity to MAO A/B active sites. CONCLUSION The small molecule anilides with different substitution patterns were identified as potent MAO A/B inhibitors, which were active in nanomolar concentrations ranges. These small and easily accessible molecules are promising motifs, especially for newly designed multitargeted ligands taking advantage of these fragments.
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Affiliation(s)
- Jens Hagenow
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Duesseldorf40225, Germany
| | - Stefanie Hagenow
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Duesseldorf40225, Germany
| | - Kathrin Grau
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Duesseldorf40225, Germany
| | - Mohammad Khanfar
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Duesseldorf40225, Germany
- Faculty of Pharmacy, The University of Jordan, Amman11942, Jordan
- College of Pharmacy, Alfaisal University, Riyadh11533, Saudi Arabia
| | - Lena Hefke
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Frankfurt60438, Germany
| | - Ewgenij Proschak
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Frankfurt60438, Germany
| | - Holger Stark
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Duesseldorf40225, Germany
- Correspondence: Holger Stark Heinrich Heine University Duesseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, Duesseldorf40225, GermanyTel +49 211 81-10478Fax +49 211 81-13359 Email
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Chae HD, Cox N, Capolicchio S, Lee JW, Horikoshi N, Kam S, Ng AA, Edwards J, Butler TL, Chan J, Lee Y, Potter G, Capece MC, Liu CW, Wakatsuki S, Smith M, Sakamoto KM. SAR optimization studies on modified salicylamides as a potential treatment for acute myeloid leukemia through inhibition of the CREB pathway. Bioorg Med Chem Lett 2019; 29:2307-2315. [PMID: 31253529 DOI: 10.1016/j.bmcl.2019.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
Disruption of cyclic adenosine monophosphate response element binding protein (CREB) provides a potential new strategy to address acute leukemia, a disease associated with poor prognosis, and for which conventional treatment options often carry a significant risk of morbidity and mortality. We describe the structure-activity relationships (SAR) for a series of XX-650-23 derived from naphthol AS-E phosphate that disrupts binding and activation of CREB by the CREB-binding protein (CBP). Through the development of this series, we identified several salicylamides that are potent inhibitors of acute leukemia cell viability through inhibition of CREB-CBP interaction. Among them, a biphenyl salicylamide, compound 71, was identified as a potent inhibitor of CREB-CBP interaction with improved physicochemical properties relative to previously described derivatives of naphthol AS-E phosphate.
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Affiliation(s)
- Hee-Don Chae
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Nick Cox
- Medicinal Chemistry Knowledge Center, Stanford ChEM-H, Stanford, CA, USA; Presently at Novo Nordisk Research Center Seattle, Inc., USA
| | | | - Jae Wook Lee
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Naoki Horikoshi
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Sharon Kam
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Andrew A Ng
- Medicinal Chemistry Knowledge Center, Stanford ChEM-H, Stanford, CA, USA
| | - Jeffrey Edwards
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Tae-León Butler
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Justin Chan
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Yvonne Lee
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Garrett Potter
- Medicinal Chemistry Knowledge Center, Stanford ChEM-H, Stanford, CA, USA
| | - Mark C Capece
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Corey W Liu
- Macromolecular Structure Knowledge Center, Stanford ChEM-H, Stanford, CA, USA
| | - Soichi Wakatsuki
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA; BioSciences Division, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Mark Smith
- Medicinal Chemistry Knowledge Center, Stanford ChEM-H, Stanford, CA, USA.
| | - Kathleen M Sakamoto
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
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13
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Li BX, Chen J, Chao B, Zheng Y, Xiao X. A Lamin-Binding Ligand Inhibits Homologous Recombination Repair of DNA Double-Strand Breaks. ACS CENTRAL SCIENCE 2018; 4:1201-1210. [PMID: 30276254 PMCID: PMC6161055 DOI: 10.1021/acscentsci.8b00379] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Indexed: 05/02/2023]
Abstract
Nuclear lamins are type V intermediate filament proteins. Lamins, including LA, LB1, LB2, and LC, are the major protein components forming the nuclear lamina to support the mechanical stability of the mammalian cell nucleus. Increasing evidence has shown that LA participates in homologous recombination (HR) repair of DNA double-strand breaks (DSBs) . However, the mechanisms underlying this process are incompletely understood. We recently identified the first lamin-binding ligand 1 (LBL1) that directly binds LA and inhibited cancer cell growth. We provided here further mechanistic investigations of LBL1 and revealed that LA interacts with the HR recombinase Rad51 to protect Rad51 from degradation. LBL1 inhibits LA-Rad51 interaction leading to accelerated proteasome-mediated degradation of Rad51, culminating in inhibition of HR repair of DSBs. These results uncover a novel post-translational regulation of Rad51 by LA and suggest that targeting the LA-Rad51 axis may represent a promising strategy to develop cancer therapeutics.
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Affiliation(s)
- Bingbing X. Li
- Program
in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
- E-mail:
| | - Jingjin Chen
- Program
in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Bo Chao
- Program
in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Yixian Zheng
- Department
of Embryology, Carnegie Institution for
Science, 3520 San Martin
Drive, Baltimore, Maryland 21218, United States
| | - Xiangshu Xiao
- Program
in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
- Knight
Cancer Institute, Oregon Health & Science
University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
- E-mail:
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14
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Steven A, Seliger B. Control of CREB expression in tumors: from molecular mechanisms and signal transduction pathways to therapeutic target. Oncotarget 2018; 7:35454-65. [PMID: 26934558 PMCID: PMC5085243 DOI: 10.18632/oncotarget.7721] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 01/26/2016] [Indexed: 12/11/2022] Open
Abstract
The cyclic AMP response element binding (CREB) protein has pleiotropic activities in physiologic processes. Due to its central position downstream of many growth signaling pathways CREB has the ability to influence cell survival, growth and differentiation of normal, but also of tumor cells suggesting an oncogenic potential of CREB. Indeed, increased CREB expression and activation is associated with tumor progression, chemotherapy resistance and reduced patients' survival. We summarize here the different cellular functions of CREB in tumors of distinct histology as well as its use as potential prognostic marker. In addition, the underlying molecular mechanisms to achieve constitutive activation of CREB including structural alterations, such as gene amplification and chromosomal translocation, and deregulation, which could occur at the transcriptional, post-transcriptional and post-translational level, will be described. Since downregulation of CREB by different strategies resulted in inhibition of cell proliferation, invasion and induction of apoptosis, the role of CREB as a promising target for cancer therapy will be also discussed.
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Affiliation(s)
- André Steven
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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15
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He X, Li Y, Wang M, Chen HX, Chen B, Liang H, Zhang Y, Pang J, Qiu L. Highly efficient synthesis of benzodioxins with a 2-site quaternary carbon structure by secondary amine-catalyzed dual Michael cascade reactions. Org Biomol Chem 2018; 16:5533-5538. [DOI: 10.1039/c8ob01029c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Employing salicylic acids and substituted 3-butyn-2-ones as the substrates, a morpholine catalyzed tandem dual Michael addition afforded a benzodioxin skeleton.
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Affiliation(s)
- Xuefeng He
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Yongsu Li
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Meng Wang
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Hui-Xuan Chen
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Bin Chen
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Hao Liang
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Yaqi Zhang
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Jiyan Pang
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
| | - Liqin Qiu
- School of Chemistry
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center
- Sun Yat-sen University
- Guangzhou 510275
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16
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Chao B, Li BX, Xiao X. Design, synthesis and evaluation of antitumor acylated monoaminopyrroloquinazolines. Bioorg Med Chem Lett 2017; 27:3107-3110. [PMID: 28552339 DOI: 10.1016/j.bmcl.2017.05.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/09/2017] [Accepted: 05/13/2017] [Indexed: 12/13/2022]
Abstract
Pyrroloquinazoline is a privileged chemical scaffold with diverse biological activities. We recently described a series of N-3 acylated 1,3-diaminopyrroloquinazolines with potent anticancer activities. The N-1 primary amino group in 1,3-diaminopyrroloquinazoline is critical for its inhibitory activity against dihydrofolate reductase (DHFR). In order to design out this unnecessary DHFR inhibition activity and further expand the chemical space associated with pyrroloquinazoline, we removed the N-1 primary amino group. In this report, we describe our design and synthesis of a series of N-3 acylated monoaminopyrroloquinazolines. Biological evaluation of these compounds identified a naphthamide 4a as a potent anticancer agent (GI50=88-200nM), suggesting that removing the N-1 primary amino group in 1,3-diaminopyrroloquinazoline is a useful chemical modification that can be introduced to improve the anticancer activity.
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Affiliation(s)
- Bo Chao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Bingbing X Li
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA; Knight Cancer Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.
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17
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Xie F, Li BX, Xiao X. Design, synthesis and biological evaluation of regioisomers of 666-15 as inhibitors of CREB-mediated gene transcription. Bioorg Med Chem Lett 2017; 27:994-998. [PMID: 28073675 PMCID: PMC5296214 DOI: 10.1016/j.bmcl.2016.12.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/28/2016] [Accepted: 12/28/2016] [Indexed: 11/19/2022]
Abstract
cAMP-response element binding protein (CREB) is a nuclear transcription factor that has been implicated in the pathogenesis and maintenance of various types of human cancers. Identification of small molecule inhibitors of CREB-mediated gene transcription has been pursued as a novel strategy for developing cancer therapeutics. We recently discovered a potent and cell-permeable CREB inhibitor called 666-15. 666-15 is a bisnaphthamide and has been shown to possess efficacious anti-breast cancer activity without toxicity in vivo. In this study, we designed and synthesized a series of analogs of 666-15 to probe the importance of regiochemistry in naphthalene ring B. Biological evaluations of these analogs demonstrated that the substitution pattern of the alkoxy and carboxamide in naphthalene ring B is very critical for maintaining potent CREB inhibition activity, suggesting that the unique bioactive conformation accessible in 666-15 is critically important.
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Affiliation(s)
- Fuchun Xie
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Bingbing X Li
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA; Knight Cancer Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA; Knight Cardiovascular Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.
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18
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Le TVT, Nguyen PH, Choi HS, Yang JL, Kang KW, Ahn SG, Oh WK. Diarylbutane-type Lignans fromMyristica fragrans(Nutmeg) show the Cytotoxicity against Breast Cancer Cells through Activation of AMP-activated Protein Kinase. ACTA ACUST UNITED AC 2017. [DOI: 10.20307/nps.2017.23.1.21] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thi Van Thu Le
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Phi Hung Nguyen
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Hong Seok Choi
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Jun-Li Yang
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Keon Wook Kang
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Sang-Gun Ahn
- Department of Pathology, College of Dentistry, Chosun University, Gwangju 501-759 Republic of Korea
| | - Won Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
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19
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Li BX, Gardner R, Xue C, Qian DZ, Xie F, Thomas G, Kazmierczak SC, Habecker BA, Xiao X. Systemic Inhibition of CREB is Well-tolerated in vivo. Sci Rep 2016; 6:34513. [PMID: 27694829 PMCID: PMC5046085 DOI: 10.1038/srep34513] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/15/2016] [Indexed: 11/30/2022] Open
Abstract
cAMP-response element binding protein (CREB) is a nuclear transcription factor activated by multiple extracellular signals including growth factors and hormones. These extracellular cues activate CREB through phosphorylation at Ser133 by various protein serine/threonine kinases. Once phosphorylated, it promotes its association with transcription coactivators CREB-binding protein (CBP) and its paralog p300 to activate CREB-dependent gene transcription. Tumor tissues of different origins have been shown to present overexpression and/or overactivation of CREB, indicating CREB as a potential cancer drug target. We previously identified 666-15 as a potent inhibitor of CREB with efficacious anti-cancer activity both in vitro and in vivo. Herein, we investigated the specificity of 666-15 and evaluated its potential in vivo toxicity. We found that 666-15 was fairly selective in inhibiting CREB. 666-15 was also found to be readily bioavailable to achieve pharmacologically relevant concentrations for CREB inhibition. Furthermore, the mice treated with 666-15 showed no evidence of changes in body weight, complete blood count, blood chemistry profile, cardiac contractility and tissue histologies from liver, kidney and heart. For the first time, these results demonstrate that pharmacological inhibition of CREB is well-tolerated in vivo and indicate that such inhibitors should be promising cancer therapeutics.
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Affiliation(s)
- Bingbing X Li
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Ryan Gardner
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Changhui Xue
- Knight Cancer Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - David Z Qian
- Knight Cancer Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Fuchun Xie
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - George Thomas
- Knight Cancer Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Steven C Kazmierczak
- Department of Pathology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Beth A Habecker
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.,Knight Cardiovascular Institute, Department of Medicine, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.,Knight Cancer Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.,Knight Cardiovascular Institute, Department of Medicine, Oregon Health &Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
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20
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Small molecule inhibition of cAMP response element binding protein in human acute myeloid leukemia cells. Leukemia 2016; 30:2302-2311. [PMID: 27211267 PMCID: PMC5143163 DOI: 10.1038/leu.2016.139] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/24/2016] [Accepted: 05/04/2016] [Indexed: 12/16/2022]
Abstract
The transcription factor CREB (cAMP Response-Element Binding Protein) is overexpressed in the majority of acute myeloid leukemia (AML) patients, and this is associated with a worse prognosis. Previous work revealed that CREB overexpression augmented AML cell growth, while CREB knockdown disrupted key AML cell functions in vitro. In contrast, CREB knockdown had no effect on long-term hematopoietic stem cell activity in mouse transduction/transplantation assays. Together, these studies position CREB as a promising drug target for AML. To test this concept, a small molecule inhibitor of CREB, XX-650-23, was developed. This molecule blocks a critical interaction between CREB and its required co-activator CBP (CREB Binding Protein), leading to disruption of CREB-driven gene expression. Inhibition of CBP-CREB interaction induced apoptosis and cell-cycle arrest in AML cells, and prolonged survival in vivo in mice injected with human AML cells. XX-650-23 had little toxicity on normal human hematopoietic cells and tissues in mice. To understand the mechanism of XX-650-23, we performed RNA-seq, ChIP-seq and Cytometry Time of Flight with human AML cells. Our results demonstrate that small molecule inhibition of CBP-CREB interaction mostly affects apoptotic, cell-cycle and survival pathways, which may represent a novel approach for AML therapy.
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21
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Xie F, Li BX, Kassenbrock A, Xue C, Wang X, Qian DZ, Sears RC, Xiao X. Identification of a Potent Inhibitor of CREB-Mediated Gene Transcription with Efficacious in Vivo Anticancer Activity. J Med Chem 2015; 58:5075-87. [PMID: 26023867 PMCID: PMC4493896 DOI: 10.1021/acs.jmedchem.5b00468] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
![]()
Recent
studies have shown that nuclear transcription factor cyclic
adenosine monophosphate response element binding protein (CREB) is
overexpressed in many different types of cancers. Therefore, CREB
has been pursued as a novel cancer therapeutic target. Naphthol AS-E
and its closely related derivatives have been shown to inhibit CREB-mediated
gene transcription and cancer cell growth. Previously, we identified
naphthamide 3a as a different chemotype to inhibit CREB’s
transcription activity. In a continuing effort to discover more potent
CREB inhibitors, a series of structural congeners of 3a was designed and synthesized. Biological evaluations of these compounds
uncovered compound 3i (666-15) as a potent
and selective inhibitor of CREB-mediated gene transcription (IC50 = 0.081 ± 0.04 μM). 666-15 also
potently inhibited cancer cell growth without harming normal cells.
In an in vivo MDA-MB-468 xenograft model, 666-15 completely
suppressed the tumor growth without overt toxicity. These results
further support the potential of CREB as a valuable cancer drug target.
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22
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Schepetkin IA, Khlebnikov AI, Giovannoni MP, Kirpotina LN, Cilibrizzi A, Quinn MT. Development of small molecule non-peptide formyl peptide receptor (FPR) ligands and molecular modeling of their recognition. Curr Med Chem 2015; 21:1478-504. [PMID: 24350845 DOI: 10.2174/0929867321666131218095521] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 10/14/2013] [Accepted: 12/10/2013] [Indexed: 02/07/2023]
Abstract
Formyl peptide receptors (FPRs) are G protein-coupled receptors (GPCRs) expressed on a variety of cell types. These receptors play an important role in the regulation of inflammatory reactions and sensing cellular damage. They have also been implicated in the pathogenesis of various diseases, including neurodegenerative diseases, cataract formation, and atherogenesis. Thus, FPR ligands, both agonists and antagonists, may represent novel therapeutics for modulating host defense and innate immunity. A variety of molecules have been identified as receptor subtype-selective and mixed FPR agonists with potential therapeutic value during last decade. This review describes our efforts along with recent advances in the identification, optimization, biological evaluation, and structure-activity relationship (SAR) analysis of small molecule non-peptide FPR agonists and antagonists, including chiral molecules. Questions regarding the interaction at the molecular level of benzimidazoles, pyrazolones, pyridazin-3(2H)-ones, N-phenylureas and other derivatives with FPR1 and FPR2 are discussed. Application of computational models for virtual screening and design of FPR ligands is also considered.
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Affiliation(s)
| | | | | | | | | | - M T Quinn
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, MT 59717, USA.
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23
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Li BX, Xie F, Fan Q, Barnhart KM, Moore CE, Rheingold AL, Xiao X. Novel Type of Prodrug Activation through a Long-Range O,N-Acyl Transfer: A Case of Water-Soluble CREB Inhibitor. ACS Med Chem Lett 2014; 5:1104-9. [PMID: 25313320 DOI: 10.1021/ml500330n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 08/22/2014] [Indexed: 11/29/2022] Open
Abstract
CREB (cAMP response element binding protein) has been shown to play an important role in tumor initiation, progression, and metastasis. We discovered that naphthol AS-E, a cell-permeable CREB inhibitor, presented antiproliferative activity in a broad panel of cancer cell lines in vitro. However, it has limited aqueous solubility. In this report, we described a water-soluble inhibitor (compound 6) of CREB-mediated gene transcription with in vivo anticancer activity. Unexpectedly, compound 6 was found to be a prodrug of compound 12 necessitating an unprecedented long-range O,N-acyl transfer. The rate of this transfer was pH- and temperature-dependent. To the best of our knowledge, this is the first time to show that a long-range O,N-acyl transfer could be exploited as a prodrug activation strategy to improve aqueous solubility. This type of prodrug may be applicable to other structures with spatially arranged hydroxyl amide to improve their aqueous solubility.
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Affiliation(s)
| | | | | | | | - Curtis E. Moore
- Department
of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Arnold L. Rheingold
- Department
of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
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24
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Gündüz H, Kumbaraci V, Talinli N. Reactions of Quino-Ketenes with C-Nucleophiles: Syntheses of (2-Hydroxyphenyl)methanols and 2-Hydroxyphenyl Ketones. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300391] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Thakur JK, Yadav A, Yadav G. Molecular recognition by the KIX domain and its role in gene regulation. Nucleic Acids Res 2013; 42:2112-25. [PMID: 24253305 PMCID: PMC3936767 DOI: 10.1093/nar/gkt1147] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The kinase-inducible domain interacting (KIX) domain is a highly conserved independently folding three-helix bundle that serves as a docking site for transcription factors, whereupon promoter activation and target specificity are achieved during gene regulation. This docking event is a harbinger of an intricate multi-protein assembly at the transcriptional apparatus and is regulated in a highly precise manner in view of the critical role it plays in multiple cellular processes. KIX domains have been characterized in transcriptional coactivators such as p300/CREB-binding protein and mediator of RNA polymerase II transcription subunit 15, and even recQ protein-like 5 helicases in various organisms. Their targets are often intrinsically disordered regions within the transactivation domains of transcription factors that attain stable secondary structure only upon complexation with KIX. In this article, we review the KIX domain in terms of its sequence and structure and present the various implications of its ability to act as a transcriptional switch, the mechanistic basis of molecular recognition by KIX, its binding specificity, target promiscuity, combinatorial potential and unique mode of regulation via allostery. We also discuss the possible roles of KIX domains in plants and hope that this review will accelerate scientific interest in KIX and pave the way for novel avenues of research on this critical domain.
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Affiliation(s)
- Jitendra K Thakur
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi 110067, India
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26
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Corsini M, Moroni E, Ravelli C, Andrés G, Grillo E, Ali IH, Brazil DP, Presta M, Mitola S. Cyclic adenosine monophosphate-response element-binding protein mediates the proangiogenic or proinflammatory activity of gremlin. Arterioscler Thromb Vasc Biol 2013; 34:136-45. [PMID: 24233491 DOI: 10.1161/atvbaha.113.302517] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Angiogenesis and inflammation are closely related processes. Gremlin is a novel noncanonical vascular endothelial growth factor receptor-2 (VEGFR2) ligand that induces a proangiogenic response in endothelial cells (ECs). Here, we investigated the role of the cyclic adenosine monophosphate-response element (CRE)-binding protein (CREB) in mediating the proinflammatory and proangiogenic responses of ECs to gremlin. APPROACH AND RESULTS Gremlin induces a proinflammatory response in ECs, leading to reactive oxygen species and cyclic adenosine monophosphate production and the upregulation of proinflammatory molecules involved in leukocyte extravasation, including chemokine (C-C motif) ligand-2 (Ccl2) and Ccl7, chemokine (C-X-C motif) ligand-1 (Cxcl1), vascular cell adhesion molecule-1 (VCAM-1), and intercellular adhesion molecule-1 (ICAM-1). Accordingly, gremlin induces the VEGFR2-dependent phosphorylation, nuclear translocation, and transactivating activity of CREB in ECs. CREB activation mediates the early phases of the angiogenic response to gremlin, including stimulation of EC motility and permeability, and leads to monocyte/macrophage adhesion to ECs and their extravasation. All these effects are inhibited by EC transfection with a dominant-negative CREB mutant or with a CREB-binding protein-CREB interaction inhibitor that competes for CREB/CRE binding. Also, both recombinant gremlin and gremlin-expressing tumor cells induce proinflammatory/proangiogenic responses in vivo that are suppressed by the anti-inflammatory drug hydrocortisone. Similar effects were induced by the canonical VEGFR2 ligand VEGF-A165. CONCLUSIONS Together, the results underline the tight cross-talk between angiogenesis and inflammation and demonstrate a crucial role of CREB activation in the modulation of the VEGFR2-mediated proinflammatory/proangiogenic response of ECs to gremlin.
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Affiliation(s)
- Michela Corsini
- From the Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (M.C., E.M., C.R., E.G., M.P., S.M.); Electron Microscopy Unit, Centro de Biologia Molecular Severo Ochoa, Campus Cantoblanco, Madrid, Spain (G.A.); and Centre for Experimental Medicine, Queen's University Belfast, ICS-A, Grosvenor Road, Belfast BT12 6BA, UK (I.H.A., D.P.B.)
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Steven A, Leisz S, Massa C, Iezzi M, Lattanzio R, Lamolinara A, Bukur J, Müller A, Hiebl B, Holzhausen HJ, Seliger B. HER-2/neu mediates oncogenic transformation via altered CREB expression and function. Mol Cancer Res 2013; 11:1462-77. [PMID: 24025972 DOI: 10.1158/1541-7786.mcr-13-0125] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED The cyclic (c)AMP responsive element binding protein (CREB) plays a key role in many cellular processes, including differentiation, proliferation, and signal transduction. Furthermore, CREB overexpression was found in tumors of distinct origin and evidence suggests an association with tumorigenicity. To establish a mechanistic link between HER-2/neu-mediated transformation and CREB protein expression and function, in vitro models of HER-2/neu-overexpressing and HER-2/neu-negative/silenced counterparts as well as human mammary carcinoma lesions with defined HER-2/neu status were used. HER-2/neu overexpression resulted in the induction and activation of CREB protein in vitro and in vivo, whereas short hairpin RNA (shRNA)-mediated inhibition of HER-2/neu correlated with downregulated CREB activity. CREB activation in HER-2/neu-transformed cells enhanced distinct signal transduction pathways, whereas their inhibition negatively interfered with CREB expression and/or activation. CREB downregulation in HER-2/neu-transformed cells by shRNA and by the inhibitors KG-501 and lapatinib caused morphologic changes, reduced cell proliferation with G0-G1 cell-cycle arrest, which was rescued by CREB expression. This was accompanied by reduced cell migration, wound healing, an increased fibronectin adherence, invasion, and matrix metalloproteinase expression. In vivo shCREB-HER-2/neu(+) cells, but not control cells, exerted a significantly decreased tumorgenicity that was associated with decreased proliferative capacity, enhanced apoptosis, and increased frequency of T lymphocytes in peripheral blood mononuclear cells. Thus, CREB plays an important role in the HER-2/neu-mediated transformation by altering in vitro and in vivo growth characteristics. IMPLICATIONS These data suggest that CREB affects tumor immunogenicity and is a potential target for cancer therapy.
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Affiliation(s)
- André Steven
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112 Halle, Germany.
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Xie F, Li BX, Broussard C, Xiao X. Identification, synthesis and evaluation of substituted benzofurazans as inhibitors of CREB-mediated gene transcription. Bioorg Med Chem Lett 2013; 23:5371-5. [PMID: 23953193 DOI: 10.1016/j.bmcl.2013.07.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 07/22/2013] [Accepted: 07/24/2013] [Indexed: 11/17/2022]
Abstract
Cyclic-AMP response-element binding protein (CREB) is a stimulus-activated transcription factor. Its transcription activity requires its binding with CREB-binding protein (CBP) after CREB is phosphorylated at Ser133. The domains involved for CREB-CBP interaction are kinase-inducible domain (KID) from CREB and KID-interacting domain (KIX) from CBP. Recent studies suggest that CREB is an attractive target for novel cancer therapeutics. To identify novel chemotypes as inhibitors of KIX-KID interaction, we screened the NCI-diversity set of compounds using a split renilla luciferase assay and identified 2-[(7-nitrobenzo[c][1,2,5]oxadiazol-4-yl)thio]pyridine 1-oxide (compound 1, NSC228155) as a potent inhibitor of KIX-KID interaction. However, compound 1 was not particularly selective against CREB-mediated gene transcription in living HEK 293T cells. Further structure-activityrelationship studies identified 4-aniline substituted nitrobenzofurazans with improved selectivity.
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Affiliation(s)
- Fuchun Xie
- Department of Physiology and Pharmacology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
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Xie F, Li BX, Xiao X. Synthesis and Evaluation of an O-Aminated Naphthol AS-E as a Prodrug of CREB-mediated Gene Transcription Inhibition. LETT ORG CHEM 2013; 10:380-384. [PMID: 25285062 DOI: 10.2174/1570178611310050014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An O-aminated naphthol AS-E was designed as a prodrug to achieve reductive activation and improved aqueous solubility. During the synthesis of this designed compound, a novel transformation from aryl triflates and ethyl acetohydroximate to oxazoles was discovered. Although the initially designed O-amino naphthol AS-E was not made successfully, the eventually synthesized O-tert-butylamino derivative was found to be biologically inactive, suggesting that reductive N-O cleavage in this compound was not facile due to unfavorable steric and electronic effects.
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Affiliation(s)
- Fuchun Xie
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Bingbing X Li
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97239, USA ; Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
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Chen J, Kassenbrock A, Li BX, Xiao X. Discovery of a Potent Anti-tumor Agent through Regioselective Mono- N-acylation of 7 H-Pyrrolo[3,2- f]quinazoline-1,3-diamine. MEDCHEMCOMM 2013; 4:1275-1282. [PMID: 24163729 DOI: 10.1039/c3md00134b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
7H-Pyrrolo[3,2-f]quinazoline-1,3-diamine (1) is a privileged chemical scaffold with significant biological activities. However, the currently accessible chemical space derived from 1 is rather limited. Here we expanded the chemical space related to 1 by developing efficient methods for regioselective monoacylation at N1 , N3 and N7 , respectively. With this novel methodology, a focused library of mono-N-acylated pyrroloquinazoline-1,3-diamines were prepared and screened for anti-breast cancer activity. The structure-activity relationship (SAR) results showed that N3 -acylated compounds were in general more potent than N1 -acylated compounds while N7 -acylation significantly reduced their solubility. Among the compounds evaluated, 7f possessed 8-fold more potent activity than 1 in MDA-MB-468 cells. More importantly, 7f was not toxic to normal human cells. These results suggest that 7f is a novel compound as a potential anti-breast cancer agent without harming normal cells.
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Affiliation(s)
- Jingjin Chen
- Program in Chemical Biology, Department of Physiology and Pharmacology, Knight Cancer Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
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