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Hamed A, Yamaguchi LF, Valencia Morante EY, Spira B, Stammler HG, El Gaafary M, Ziegler D, Syrovets T, Simmet T, Kato MJ. Cannabinoid-like meroterpenoids from Peperomia incana. Phytochemistry 2023; 207:113551. [PMID: 36509184 DOI: 10.1016/j.phytochem.2022.113551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Ten previously undescribed metabolites were isolated from Peperomia incana (Haw.) A. Dietr. (Piperaceae), among which four contained a chromene moiety, two were identified as meroterpene lactones, and four were cannabinoid-like compounds. While the chemical structures of the compounds were assigned based on HRESIMS and 1D and 2D-NMR spectra analyses, the relative and absolute configurations were assigned from NOE correlations and a combination of ECD data and X-ray single crystal analyses, respectively. In a cytotoxic assay against a panel of seven human cancer cell lines (A549, MDA-MB-231, HeLa, DU 145, 5637, Hep G2, and MIA PaCa-2, which represent non-small cell lung cancer, as well as breast, cervical, prostate, bladder, liver, and pancreas carcinomas, respectively) most of the isolated compounds showed promising cytotoxic activities. The incanachromenes B, and incanabinoids A and C exhibited the highest cytotoxicity toward all tested cancer cell lines with IC50 values in the range of 5.0-10.0 μM, whereas incanolides A, B, and incanabinoid B showed the lowest cytotoxic activity. In addition, incanachromene C and incanabinoid C produced a significant antibacterial effect toward planktonic cells and biofilms of multidrug-resistant Staphylococcus aureus strains.
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Affiliation(s)
- Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo, 11884, Egypt; Institute of Chemistry, University of São Paulo, Av.Prof.Lineu Prestes, 748, São Paulo, 05508-000, SP, Brazil
| | - Lydia Fumiko Yamaguchi
- Institute of Chemistry, University of São Paulo, Av.Prof.Lineu Prestes, 748, São Paulo, 05508-000, SP, Brazil
| | - Estela Ynés Valencia Morante
- Institute of Biomedical Sciences, University of São Paulo, Av.Prof.Lineu Prestes, 2415, São Paulo, 05508-000, SP, Brazil
| | - Beny Spira
- Institute of Biomedical Sciences, University of São Paulo, Av.Prof.Lineu Prestes, 2415, São Paulo, 05508-000, SP, Brazil
| | - Hans Georg Stammler
- Inorganic and Structural Chemistry, Bielefeld University, Department of Chemistry, D-33501, Bielefeld, Germany
| | - Menna El Gaafary
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt; Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, D-89081, Germany
| | - David Ziegler
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, D-89081, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, D-89081, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, D-89081, Germany
| | - Massuo Jorge Kato
- Institute of Chemistry, University of São Paulo, Av.Prof.Lineu Prestes, 748, São Paulo, 05508-000, SP, Brazil.
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Lederer AK, Samstag Y, Simmet T, Syrovets T, Huber R. Correction: Complementary medicine usage in surgery: a cross-sectional survey in Germany. BMC Complement Med Ther 2022; 22:304. [PMID: 36401327 PMCID: PMC9675128 DOI: 10.1186/s12906-022-03772-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Ann-Kathrin Lederer
- grid.7708.80000 0000 9428 7911Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Hugstetter Straße 55 – Haus Frerichs, 79106 Freiburg, Germany ,grid.410607.4Department of General, Visceral and Transplantation Surgery, University Medical Center, Mainz, Germany
| | - Yvonne Samstag
- grid.5253.10000 0001 0328 4908Institute of Immunology, Section Molecular Immunology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Thomas Simmet
- grid.6582.90000 0004 1936 9748Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- grid.6582.90000 0004 1936 9748Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Roman Huber
- grid.7708.80000 0000 9428 7911Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Hugstetter Straße 55 – Haus Frerichs, 79106 Freiburg, Germany
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Lederer AK, Samstag Y, Simmet T, Syrovets T, Huber R. Complementary medicine usage in surgery: a cross-sectional survey in Germany. BMC Complement Med Ther 2022; 22:263. [PMID: 36221070 PMCID: PMC9552450 DOI: 10.1186/s12906-022-03746-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 09/27/2022] [Indexed: 11/10/2022] Open
Abstract
Background Complementary medicine (CM) is frequently used by patients, but little is known about the usage of CM in surgical patients. The study aimed to elucidate the relevance of CM in surgery. Methods This cross-sectional, multi-center survey utilized a paper-based questionnaire consisting of 21 questions to capture CM usage and interest as well as CM communication in visceral and thoracic surgical patients being hospitalized at the corresponding departments of surgery at the University Medical Centers in Freiburg, Heidelberg und Ulm, Germany. Results Overall, 151 patients consented to the survey. On average, current CM usage was stated by 44% of patients. Most frequently used CM approaches were physical exercise (63%), nutritional supplements (59%) and herbal medicine (56%). Strong interest in CM counselling was stated by 51% of patients. Almost 80% of patients wanted to be treated in a holistic manner and desired for reliable information about CM as well as CM informed physicians. Only 12% of patients communicated CM usage and interest with their attending physician. Review of literature revealed similar results showing an overall CM usage of 43%, preferring nutritional supplements and herbal medicine. Conclusion The results of our cross-sectional study indicate a high percentage of CM users and a strong interest in CM among surgical patients. Indeed, the current communication about CM between patients and surgeons is poor. With respect to safety and quality reasons, but also to pay attention to patients’ demands, physicians should be aware of patients’ CM usage in surgery. Trial registration German Clinical Trial register (DRKS00015445).
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Affiliation(s)
- Ann-Kathrin Lederer
- grid.7708.80000 0000 9428 7911Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Hugstetter Straße 55 – Haus Frerichs, 79106 Freiburg, Germany ,grid.410607.4Department of General, Visceral and Transplantation Surgery, University Medical Center, Mainz, Germany
| | - Yvonne Samstag
- grid.5253.10000 0001 0328 4908Institute of Immunology, Section Molecular Immunology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Thomas Simmet
- grid.6582.90000 0004 1936 9748Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- grid.6582.90000 0004 1936 9748Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Roman Huber
- grid.7708.80000 0000 9428 7911Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Hugstetter Straße 55 – Haus Frerichs, 79106 Freiburg, Germany
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Ulrich J, Stiltz S, St-Gelais A, El Gaafary M, Simmet T, Syrovets T, Schmiech M. Phytochemical Composition of Commiphora Oleogum Resins and Their Cytotoxicity against Skin Cancer Cells. Molecules 2022; 27:molecules27123903. [PMID: 35745024 PMCID: PMC9229828 DOI: 10.3390/molecules27123903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022]
Abstract
Oleogum resins of the genus Commiphora have been used in traditional medicines for centuries. More than 200 Commiphora species exhibit highly variable phytochemical compositions. A novel highly selective, sensitive, accurate HPLC-MS/MS method was developed and validated to quantify five characteristic phytosteroids and furanosesquiterpenoids, namely (E)-guggulsterone, (Z)-guggulsterone, curzerenone, furanoeudesma-1,3-diene, and myrrhone. The resulting contents and additionally GC analysis were used to classify and differentiate Commiphora oleogum resins of the species C. myrrha, C. erythraea, C. mukul, C. holtziana, C. confusa, and C. kua, as well as unspecified resins. Interestingly, a Commiphora sample from Ogaden, Ethiopia, comprised 446 ng/mg guggulsterones presumed to be unique to C. mukul from the Indian subcontinent. However, Commiphora from Ogaden differed considerably from C. mukul in respect to guggulsterones isomer’s ratio. Moreover, the cytotoxicity of Commiphora extracts, essential oils, botanical drugs containing Commiphora, and pure compounds against the epidermoid carcinoma A431, malignant melanoma RPMI-7951 and SK-MEL-28 cells was investigated in vitro. Thereby, especially C. mukul extract and C. myrrha essential oil exhibited high cytotoxicity against skin cancer cells with IC50 of 2.9–10.9 µg/mL, but were less toxic to normal keratinocytes. In summary, Commiphora oleogum resins and its phytochemicals warrant further investigation aiming at chemotaxonomical classification as well as application in skin cancer treatment.
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Affiliation(s)
- Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
| | - Svenja Stiltz
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
| | | | - Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (J.U.); (S.S.); (M.E.G.); (T.S.); (T.S.)
- Correspondence: ; Tel.: +49-731-500-65622
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Syrovets T, Gaiser A, Schmiech M, Simmet T. Engineered Nanoparticles as Potential Therapeutics for Acute Myeloid Leukemia. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r1971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlm
| | - Ann‐Kathrin Gaiser
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlm
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlm
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlm
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Cyra M, Schulte M, Berthold R, Heinst L, Jansen EP, Grünewald I, Elges S, Larsson O, Schliemann C, Steinestel K, Hafner S, Simmet T, Wardelmann E, Kailayangiri S, Rossig C, Isfort I, Trautmann M, Hartmann W. SS18-SSX drives CREB activation in synovial sarcoma. Cell Oncol (Dordr) 2022; 45:399-413. [PMID: 35556229 PMCID: PMC9187574 DOI: 10.1007/s13402-022-00673-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2022] [Indexed: 11/28/2022] Open
Abstract
Purpose Synovial sarcoma (SySa) is a rare soft tissue tumor characterized by a reciprocal t(X;18) translocation. The chimeric SS18-SSX fusion protein represents the major driver of the disease, acting as aberrant transcriptional dysregulator. Oncogenic mechanisms whereby SS18-SSX mediates sarcomagenesis are incompletely understood, and strategies to selectively target SySa cells remain elusive. Based on results of Phospho-Kinase screening arrays, we here investigate the functional and therapeutic relevance of the transcription factor CREB in SySa tumorigenesis. Methods Immunohistochemistry of phosphorylated CREB and its downstream targets (Rb, Cyclin D1, PCNA, Bcl-xL and Bcl-2) was performed in a large cohort of SySa. Functional aspects of CREB activity, including SS18-SSX driven circuits involved in CREB activation, were analyzed in vitro employing five SySa cell lines and a mesenchymal stem cell model. CREB mediated transcriptional activity was modulated by RNAi-mediated knockdown and small molecule inhibitors (666-15, KG-501, NASTRp and Ro 31-8220). Anti-proliferative effects of the CREB inhibitor 666-15 were tested in SySa avian chorioallantoic membrane and murine xenograft models in vivo. Results We show that CREB is phosphorylated and activated in SySa, accompanied by downstream target expression. Human mesenchymal stem cells engineered to express SS18-SSX promote CREB expression and phosphorylation. Conversely, RNAi-mediated knockdown of SS18-SSX impairs CREB phosphorylation in SySa cells. Inhibition of CREB activity reduces downstream target expression, accompanied by suppression of SySa cell proliferation and induction of apoptosis invitro and in vivo. Conclusion In conclusion, our data underline an essential role of CREB in SySa tumorigenesis and provides evidence for molecular targeted therapies. Supplementary Information The online version contains supplementary material available at 10.1007/s13402-022-00673-w.
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Affiliation(s)
- Magdalene Cyra
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Miriam Schulte
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Ruth Berthold
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Lorena Heinst
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Esther-Pia Jansen
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Inga Grünewald
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Sandra Elges
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Olle Larsson
- Departments of Oncology and Pathology, The Karolinska Institute, Stockholm, Sweden
| | - Christoph Schliemann
- Department of Medicine A, Hematology, Oncology and Respiratory Medicine, Münster University Hospital, Münster, Germany
| | - Konrad Steinestel
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Institute of Pathology and Molecular Pathology, Bundeswehrkrankenhaus Ulm, Ulm, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Eva Wardelmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Sareetha Kailayangiri
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Claudia Rossig
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Ilka Isfort
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Marcel Trautmann
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany. .,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.
| | - Wolfgang Hartmann
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany. .,Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.
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El Gaafary M, Saber FR, Mahrous EA, Ashour RM, Okba MM, Jin L, Lang SJ, Schmiech M, Simmet T, Syrovets T. The phloroglucinol calcitrinone A, a novel mitochondria-targeting agent, induces cell death in breast cancer cells. Food Chem Toxicol 2022; 162:112896. [PMID: 35227860 DOI: 10.1016/j.fct.2022.112896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/06/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023]
Abstract
Breast cancer is the most common cancer and the leading cause of cancer-related mortality among females worldwide. From the leaves of Callistemon citrinus, we have isolated a novel phloroglucinol dimer, calcitrinone A, and analyzed its potential anticancer activity using the triple-negative breast cancer cell line MDA-MB-231. Calcitrinone A decreased the total intracellular ATP levels, inhibited proliferation, and induced apoptosis in MDA-MB-231 cells, but was less toxic to peripheral blood mononuclear cells. The antiproliferative and apoptosis-inducing effects of calcitrinone A were confirmed in vivo using breast cancer xenografts grown on chick chorioallantoic membranes. Mechanistic analysis showed mitochondrial membrane-potential dissipation and interference with energy-yielding processes resulting in cell accumulation in the S phase of the cell cycle. Seahorse assay analysis revealed an early inhibition of mitochondrial oxidative phosphorylation (OXPHOS). At the molecular level, calcitrinone A inhibited activity of the succinate-coenzyme Q reductase (SQR) (mitochondrial complex II). In silico docking identified the coenzyme Q binding pocket as a possible high affinity binding site for calcitrinone A in SQR. Inhibition of complex II was accompanied by strong elevation of mitochondrial superoxide and cytoplasmic ROS. Calcitrinone A might be a promising anticancer lead compound acting through the interference with the mitochondrial complex II activity.
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Affiliation(s)
- Menna El Gaafary
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt; Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany
| | - Fatema R Saber
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Engy A Mahrous
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Rehab M Ashour
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Mona M Okba
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany
| | - Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany.
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081, Ulm, Germany.
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Duweb A, Gaiser AK, Stiltz I, El Gaafary M, Simmet T, Syrovets T. The SC cell line as an in vitro model of human monocytes. J Leukoc Biol 2022; 112:659-668. [PMID: 35355303 DOI: 10.1002/jlb.1a1221-680r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/01/2022] [Indexed: 11/08/2022] Open
Abstract
In vitro analysis of human macrophages is generally hampered by the necessity to differentiate them from peripheral blood monocytes. We have analyzed to which extent noncancerous SC monocytes could be used as an in vitro macrophage model. Macrophages differentiated from peripheral monocytes using standard CSF1 and CSF2 protocols for M2 and M1 precursors, respectively, were compared with THP-1-derived macrophages treated with PMA and with SC-derived macrophages differentiated either by CSF1, CSF2, or PMA according to different protocols. The optimal condition for generation of SC macrophages was treatment with PMA for 3 days, followed by 5-days culture without PMA and 24-h polarization with LPS/IFN-γ or IL-4/IL-13. Similar to THP-1, SC cells do not express the monocyte marker CD14 and differentiation to macrophages results neither in CD68 nor in CD14 expression, both of which were expressed by monocyte-derived macrophages. Similar to THP-1-macrophages, a proportion of SC macrophages can be polarized to the M1-like subtype that is characterized by higher expression of CD38, CD86, CD80, TNF-α, and IL-1ra, whereas treatment with IL4/IL13 did not lead to expression of the M2-associated receptors CD163, CD206, and only slightly increased the CD200R expression. Still, SC-M1 express much lower levels of the M1-associated markers compared with monocyte-derived M1 and no IL-1β. The data demonstrate that SC-derived macrophages differ from monocyte-derived macrophages in respect of their morphology, expression of important macrophage markers, phagocytosis. Yet, polarized SC-M1-like cells may with restrictions serve as a model for M1 macrophages, though this model does not provide significant advantages over already well-described THP-1-M1-like cells.
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Affiliation(s)
- Amira Duweb
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany.,Department of Pharmacology, Faculty of Medicine, University of Tripoli, Tripoli, Libya
| | - Ann-Kathrin Gaiser
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Isabel Stiltz
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany.,Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, Egypt
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
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Lederer AK, Baginski A, Raab L, Joos S, Valentini J, Klocke C, Samstag Y, Hübner K, Andreeva I, Simmet T, Syrovets T, Hafner S, Freisinger A, Storz MA, Huber R. Complementary medicine in Germany: a multi-centre cross-sectional survey on the usage by and the needs of patients hospitalized in university medical centers. BMC Complement Med Ther 2021; 21:285. [PMID: 34814885 PMCID: PMC8609851 DOI: 10.1186/s12906-021-03460-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 11/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The results of recent surveys indicate that more than 50% of the German population has experience with complementary and alternative medicine (CAM) or uses CAM regularly. This study investigated the CAM usage and CAM-related needs of hospitalized patients at university medical centres in the state of Baden-Württemberg, Germany. METHODS A multi-centre, paper-based, pseudonymous survey was carried out by the members of the Academic Centre for Complementary and Integrative Medicine. Patients of all ages, regardless of sex, diagnosis and treatment, who were hospitalized in the Department of Cardiology, Gastroenterology, Oncology, Gynaecology or Surgery at the university medical centres in Freiburg, Heidelberg, Tübingen and Ulm were eligible for inclusion. RESULTS Of the 1275 eligible patients, 67% (n = 854) consented to participate in the survey. Forty-eight percent of the study participants stated that they were currently using CAM. The most frequently used therapies were exercise (63%), herbal medicine (54%) and dietary supplements (53%). Only 16% of the patients discussed CAM usage with their attending physician. Half of the patients (48%) were interested in CAM consultations. More than 80% of the patients desired reliable CAM information and stated that physicians should be better informed about CAM. CONCLUSIONS The frequency of CAM usage and the need for CAM counselling among hospitalized patients at university medical centres in Baden-Württemberg are high. To better meet patients' needs, CAM research and physician education should be intensified. TRIAL REGISTRATION German Clinical Trial register ( DRKS00015445 ).
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Affiliation(s)
- Ann-Kathrin Lederer
- Center for Complementary Medicine, Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Theodor von Frerichs Haus, Sir-Hans-A.-Krebs-Straße, 79106, Freiburg, Germany.,Chirurgische Klinik, Evangelisches Diakoniekrankenhaus, Freiburg, Germany
| | - Alexandra Baginski
- Center for Complementary Medicine, Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Theodor von Frerichs Haus, Sir-Hans-A.-Krebs-Straße, 79106, Freiburg, Germany
| | - Lena Raab
- Center for Complementary Medicine, Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Theodor von Frerichs Haus, Sir-Hans-A.-Krebs-Straße, 79106, Freiburg, Germany
| | - Stefanie Joos
- Institute for General Practice and Interprofessional Care, University Hospital Tübingen, Tübingen, Germany
| | - Jan Valentini
- Institute for General Practice and Interprofessional Care, University Hospital Tübingen, Tübingen, Germany
| | - Carina Klocke
- Institute for General Practice and Interprofessional Care, University Hospital Tübingen, Tübingen, Germany
| | - Yvonne Samstag
- Institute of Immunology, Section Molecular Immunology, University of Heidelberg, Heidelberg, Germany
| | - Katrin Hübner
- Institute of Immunology, Section Molecular Immunology, University of Heidelberg, Heidelberg, Germany
| | - Ivana Andreeva
- Institute of Immunology, Section Molecular Immunology, University of Heidelberg, Heidelberg, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Anna Freisinger
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Maximilian Andreas Storz
- Center for Complementary Medicine, Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Theodor von Frerichs Haus, Sir-Hans-A.-Krebs-Straße, 79106, Freiburg, Germany
| | - Roman Huber
- Center for Complementary Medicine, Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Theodor von Frerichs Haus, Sir-Hans-A.-Krebs-Straße, 79106, Freiburg, Germany.
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10
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Elgaafary M, Fouda AM, Mohamed HM, Hamed A, El-Mawgoud HKA, Jin L, Ulrich J, Simmet T, Syrovets T, El-Agrody AM. Synthesis of β-Enaminonitrile-Linked 8-Methoxy-1 H-Benzo[ f]Chromene Moieties and Analysis of Their Antitumor Mechanisms. Front Chem 2021; 9:759148. [PMID: 34881224 PMCID: PMC8645891 DOI: 10.3389/fchem.2021.759148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/05/2021] [Indexed: 12/04/2022] Open
Abstract
A series of aryl-substituted 3-amino-1-aryl-8-methoxy-1H-benzo[f]chromene-2-carbonitriles (4a-4q) were designed and synthesized via reaction of 6-methoxy-2-naphthol with a mixture of appropriate aromatic aldehydes and malononitrile under microwave conditions. The structures of the novel compounds 4b, 4c, 4f, 4g, 4i, 4l, 4m, and 4o-4q were established according to IR, 1H-NMR, 13C-NMR/13C-NMR-DEPT, and MS. The benzochromene derivative 4c with a single chlorine at the meta position of the phenyl ring and, to a lesser extent, other benzochromenes with monohalogenated phenyl ring (4a, 4c-4f) exhibited the highest cytotoxicity against six human cancer cell lines MDA-MB-231, A549, HeLa, MIA PaCa-2, 5,637, and Hep G2. The mechanisms of the cytotoxic activities of benzochromenes with monohalogenated phenyl ring (4a, 4c-4f) were further analyzed using triple-negative breast cancer cell line MDA-MB-231. Cell cycle analysis showed accumulation of the treated cells in S phase for 4a, 4d-4f, and S-G2/M phases for 4c. In vivo, 4a and 4c-4f inhibited growth, proliferation, and triggered apoptosis in preestablished breast cancer xenografts grown on the chick chorioallantoic membranes while exhibiting low systemic toxicity. Compounds 4a and 4c-4f increased levels of mitochondrial superoxide and decreased mitochondrial membrane potential resulting in initiation of apoptosis as demonstrated by caspase 3/7 activation. In addition, 4c induced general oxidative stress in cancer cells. The SAR study confirmed that halogens of moderate size at meta or para positions of the pendant phenyl ring enhance the cytotoxic activity of 3-amino-1-aryl-8-methoxy-1H-benzo[f]chromene-2-carbonitriles, and these compounds could serve as leads for the development of novel anticancer therapies.
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Affiliation(s)
- Menna Elgaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, Egypt
| | - Ahmed M. Fouda
- Chemistry Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Hany M. Mohamed
- Chemistry Department, Faculty of Science, Jazan University, Jazan, Saudi Arabia
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Heba K. A. El-Mawgoud
- Chemistry Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, Cairo, Egypt
| | - Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Ahmed M. El-Agrody
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
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11
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Elgaafary M, Lehner J, Fouda AM, Hamed A, Ulrich J, Simmet T, Syrovets T, El-Agrody AM. Synthesis and evaluation of antitumor activity of 9-methoxy-1H-benzo[f]chromene derivatives. Bioorg Chem 2021; 116:105402. [PMID: 34670333 DOI: 10.1016/j.bioorg.2021.105402] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/12/2021] [Accepted: 09/30/2021] [Indexed: 02/07/2023]
Abstract
Herein, a series of aryl-substituted derivatives of 3-amino-1-aryl-9-methoxy-1H-benzo[f]chromene-2-carbonitriles (4a-4q) were designed and synthesized via reaction of 7-methoxy-2-naphthol with a mixture of appropriate aromatic aldehydes and malononitrile under microwave conditions. Among the tested benzochromene, the known compound 4e and four novel compounds 4f, 4j, 4k, 4m exhibited the highest cytotoxicity towards a panel of six human cancer cell lines MDA-MB-231, A549, HeLa, MIA PaCa-2, RPMI 7951, and PC-3. Compound 4j with 2,4-dichloro substitution on the pendant phenyl ring exhibited the highest broad-spectrum cytotoxicity towards all tested cancer cell lines. Compounds 4e, 4f, 4j, 4k, 4m were further selected to study the mechanism of cellular toxicity using the triple-negative breast cancer cells MDA-MB-231. Compounds 4e, 4f, 4j, 4k, 4m induced accumulation of the treated MDA-MB-231 cells in the S phase and 4k additionally in the G2/M phase of the cell cycle. Compounds 4e, 4f, 4j, 4k, 4m induced dissipation of mitochondrial transmembrane potential and activation of caspase 3/7 in MDA-MB-231 cells with 4j being one of the most active. In an in vivo model, compound 4j and less efficiently 4e and 4f inhibited growth and proliferation and triggered DNA fragmentation in MDA-MB-231 xenografts grown on chick chorioallantoic membranes. SAR study confirmed that the 2,4-dichloro substitution pattern on the pendant phenyl ring enhanced the cytotoxic activity of benzochromene.
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Affiliation(s)
- Menna Elgaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany; Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Julia Lehner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany
| | - Ahmed M Fouda
- Chemistry Department, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany.
| | - Ahmed M El-Agrody
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt.
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12
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Jin L, Han X, Zhang X, Zhao Z, Ulrich J, Syrovets T, Simmet T. Identification of Oleanolic Acid as Allosteric Agonist of Integrin α M by Combination of In Silico Modeling and In Vitro Analysis. Front Pharmacol 2021; 12:702529. [PMID: 34603018 PMCID: PMC8484648 DOI: 10.3389/fphar.2021.702529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Oleanolic acid is a widely distributed natural product, which possesses promising antitumor, antiviral, antihyperlipidemic, and anti-inflammatory activities. A heterodimeric complex formed by integrin αM (CD11b) and integrin β2 (CD18) is highly expressed on monocytes and macrophages. In the current study, we demonstrate that the I domain of αM (αM-I domain) might present a potential cellular target for oleanolic acid. In vitro data show that oleanolic acid induces clustering of αM on macrophages and reduces their non-directional migration. In accordance with experimental data, molecular docking revealed that oleanolic acid binds to the αM-I domain in its extended-open form, the dominant conformation found in αM clusters. Molecular dynamics simulation revealed that oleanolic acid can increase the flexibility of the α7 helix and promote its movement away from the N-terminus, indicating that oleanolic acid may facilitate the conversion of the αM-I domain from the extended-closed to the extended-open conformation. As demonstrated by metadynamics simulation, oleanolic acid can destabilize the local minimum of the αM-I domain in the open conformation partially through disturbance of the interactions between α1 and α7 helices. In summary, we demonstrate that oleanolic acid might function as an allosteric agonist inducing clustering of αM on macrophages by shifting the balance from the closed to the extended-open conformation. The molecular target identified in this study might hold potential for a purposeful use of oleanolic acid to modulate chronic inflammatory responses.
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Affiliation(s)
- Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany.,School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoyu Han
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Xinlei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Zhimin Zhao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
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13
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Xia N, Tenzer S, Lunov O, Karl M, Simmet T, Daiber A, Münzel T, Reifenberg G, Förstermann U, Li H. Regulation of NADPH Oxidase-Mediated Superoxide Production by Acetylation and Deacetylation. Front Physiol 2021; 12:693702. [PMID: 34456745 PMCID: PMC8387964 DOI: 10.3389/fphys.2021.693702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 07/19/2021] [Indexed: 12/04/2022] Open
Abstract
Oral treatment of apolipoprotein E-knockout (ApoE-KO) mice with the putative sirtuin 1 (SIRT1) activator resveratrol led to a reduction of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity in the heart. In contrast, the SIRT1 inhibitor EX527 enhanced the superoxide production in isolated human polymorphonuclear granulocytes. In human monocytic THP-1 cells, phorbol ester-stimulated superoxide production was enhanced by inhibitors of histone deacetylases (HDACs; including quisinostat, trichostatin A (TSA), PCI34051, and tubastatin A) and decreased by inhibitors of histone acetyltransferases [such as garcinol, curcumin, and histone acetyltransferase (HAT) Inhibitor II]. These results indicate that protein acetylation and deacetylation may represent crucial mechanisms regulating NADPH oxidase-mediated superoxide production. In cell-free systems, incubation of recombinant Rac1 with SIRT1 resulted in decreased Rac1 acetylation. Mass spectrometry analyses identified lysine 166 (K166) in Rac1 as a residue targeted by SIRT1. Deacetylation of Rac1 by SIRT1 markedly reduced the interaction of Rac1 with p67phox in in vitro assays. Computational modeling analyses revealed that K166 deacetylation of Rac1 led to a 5-fold reduction in its binding affinity to guanosine-5'-triphosphate, and a 21-fold decrease in its binding potential to p67phox. The latter is crucial for Rac1-mediated recruitment of p67phox to the membrane and for p67phox activation. In conclusion, both SIRT1 and non-sirtuin deacetylases play a role in regulating NADPH oxidase activity. Rac1 can be directly deacetylated by SIRT1 in a cell-free system, leading to an inhibition of Rac1-p67phox interaction. The downstream targets of non-sirtuin deacetylases are still unknown. The in vivo significance of these findings needs to be investigated in future studies.
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Affiliation(s)
- Ning Xia
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Stefan Tenzer
- Department of Immunology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Oleg Lunov
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University of Ulm, Ulm, Germany.,Department of Optical and Biophysical Systems, Institute of Physics ASCR, Prague, Czechia
| | - Martin Karl
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University of Ulm, Ulm, Germany
| | - Andreas Daiber
- Department of Cardiology, Cardiology I, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Thomas Münzel
- Department of Cardiology, Cardiology I, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Gisela Reifenberg
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Ulrich Förstermann
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Huige Li
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
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14
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Müller II, Schneider M, Müller KAL, Lunov O, Borst O, Simmet T, Gawaz M. Protective role of Gremlin-1 in myocardial function. Eur J Clin Invest 2021; 51:e13539. [PMID: 33729579 DOI: 10.1111/eci.13539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/26/2021] [Accepted: 03/08/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Gremlin-1 is a cystine knot protein and is expressed in organs developing fibrosis. Transient ischaemia leads to myocardial fibrosis, a major determinant of impaired myocardial function. MATERIALS AND METHODS Expression of Gremlin-1 was investigated in infarcted myocardium by real-time PCR, Western blot analysis, histological and immunohistochemistry staining. We further elaborated the colocalization of Gremlin-1 and TGF-β proteins by confocal microscopy and co-immunoprecipitation experiments. The interaction between Gremlin-1 and TGF-β was analysed by photon correlation spectroscopy. Gremlin-1 modulation of the TGF-β-dependent collagen I synthesis in fibroblasts was investigated using ELISA and immunohistochemistry experiments. The effect of prolonged administration of recombinant Gremlin-1 on myocardial function following ischaemia/reperfusion was accessed by echocardiography and immunohistochemistry. RESULTS Gremlin-1 is expressed in myocardial tissue and infiltrating cells after transient myocardial ischaemia (P < .05). Gremlin-1 colocalizes with the pro-fibrotic cytokine transforming growth factor-β (TGF-β) expressed in fibroblasts and inflammatory cell infiltrates (P < .05). Gremlin-1 reduces TGF-β-induced collagen production of myocardial fibroblasts by approximately 20% (P < .05). We found that Gremlin-1 binds with high affinity to TGF-β (KD = 54 nmol/L) as evidenced by photon correlation spectroscopy and co-immunoprecipitation. intravenous administration of m Gremlin-1-Fc, but not of equivalent amount of Fc control, significantly reduced infarct size by approximately 20%. In the m Gremlin-1-Fc group, infarct area was reduced by up to 30% in comparison with mice treated with Fc control (I/LV: 4.8 ± 1.2% vs 6.0 ± 1.2% P < .05; I/AaR: 15.2 ± 1.5% vs 21.1 ± 5%, P < .05). CONCLUSIONS The present data disclose Gremlin-1 as an antagonist of TGF-β and presume a role for Gremlin-1/TGF-β interaction in myocardial remodelling following myocardial ischaemia.
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Affiliation(s)
- Iris I Müller
- Department of Cardiology and Angiology, University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
| | - Martina Schneider
- Department of Cardiology and Angiology, University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
| | - Karin A L Müller
- Department of Cardiology and Angiology, University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
| | - Oleg Lunov
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Oliver Borst
- Department of Cardiology and Angiology, University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Meinrad Gawaz
- Department of Cardiology and Angiology, University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
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15
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Gaiser AK, Bauer S, Ruez S, Holzmann K, Fändrich M, Syrovets T, Simmet T. Serum Amyloid A1 Induces Classically Activated Macrophages: A Role for Enhanced Fibril Formation. Front Immunol 2021; 12:691155. [PMID: 34276683 PMCID: PMC8278318 DOI: 10.3389/fimmu.2021.691155] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/09/2021] [Indexed: 11/16/2022] Open
Abstract
AA amyloidosis belongs to the group of amyloid diseases which can follow chronic inflammatory conditions of various origin. The disease is characterized by the deposition of insoluble amyloid fibrils formed by serum amyloid A1 (SAA1) leading eventually to organ failure. Macrophages are intimately involved in the fibrillogenesis as well as in the clearance of amyloid fibrils. In vivo, macrophages may occur as classically (M1) or alternatively activated (M2) macrophages. We investigate here how SAA1 might affect the macrophage phenotype and function. Gene microarray analysis revealed upregulation of 64 M1-associated genes by SAA1. M1-like polarization was further confirmed by the expression of the M1-marker MARCO, activation of the NF-κB transcription factor, and secretion of the M1-cytokines TNF-α, IL-6, and MCP-1. Additionally, we demonstrate here that M1-polarized macrophages exhibit enhanced fibrillogenic activity towards SAA1. Based on our data, we propose reconsideration of the currently used cellular amyloidosis models towards an in vitro model employing M1-polarized macrophages. Furthermore, the data suggest macrophage repolarization as potential intervention strategy in AA amyloidosis.
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Affiliation(s)
- Ann-Kathrin Gaiser
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Shanna Bauer
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Stephanie Ruez
- Institute of Protein Biochemistry, Ulm University, Ulm, Germany
| | | | - Marcus Fändrich
- Institute of Protein Biochemistry, Ulm University, Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
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16
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Schmiech M, Ulrich J, Lang SJ, Büchele B, Paetz C, St-Gelais A, Syrovets T, Simmet T. 11-Keto-α-Boswellic Acid, a Novel Triterpenoid from Boswellia spp. with Chemotaxonomic Potential and Antitumor Activity against Triple-Negative Breast Cancer Cells. Molecules 2021; 26:molecules26020366. [PMID: 33445710 PMCID: PMC7828217 DOI: 10.3390/molecules26020366] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 12/16/2022] Open
Abstract
Boswellic acids, and particularly 11-keto-boswellic acids, triterpenoids derived from the genus Boswellia (Burseraceae), are known for their anti-inflammatory and potential antitumor efficacy. Although boswellic acids generally occur as α-isomers (oleanane type) and β-isomers (ursane type), 11-keto-boswellic acid (KBA) was found only as the β-isomer, β-KBA. Here, the existence and natural occurrence of the respective α-isomer, 11-keto-α-boswellic acid (α-KBA), is demonstrated for the first time. Initially, α-KBA was synthesized and characterized by high-resolution mass spectrometry (HR-MS) and nuclear magnetic resonance (NMR) spectroscopy, and a highly selective, sensitive, and accurate high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS) method was developed by Design of Experiments (DoE) using a pentafluorophenyl stationary phase. This method allowed the selective quantification of individual 11-keto-boswellic acids and provided evidence for α-KBA in Boswellia spp. oleogum resins. The contents of α-KBA as well as further boswellic acids and the composition of essential oils were used to chemotaxonomically classify 41 Boswellia oleogum resins from 9 different species. Moreover, α-KBA exhibited cytotoxicity against three treatment-resistant triple-negative breast cancer (TNBC) cell lines in vitro and also induced apoptosis in MDA-MB-231 xenografts in vivo. The respective β-isomer and the acetylated form demonstrate higher cytotoxic efficacies against TNBC cells. This provides further insights into the structure-activity relationship of boswellic acids and could support future developments of potential anti-inflammatory and antitumor drugs.
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Affiliation(s)
- Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Sophia Johanna Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Berthold Büchele
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
| | - Christian Paetz
- Max Planck Institute for Chemical Ecology, 07745 Jena, Germany;
| | | | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (M.S.); (J.U.); (S.J.L.); (B.B.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
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17
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Ramchoun M, Khouya T, Harnafi H, Alem C, Benlyas M, Simmet T, Ouguerram K, Amrani S. Effect of polyphenol, flavonoid, and saponin fractions from Thymus atlanticus on acute and chronic hyperlipidemia in mice. Futur J Pharm Sci 2020. [DOI: 10.1186/s43094-020-00097-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Abstract
Background
Thymus atlanticus is an endemic plant of the Mediterranean region, which has been used in the Moroccan mountain area to treat several diseases. This study aimed to investigate the effect of polyphenol, flavonoid, and saponin fractions derived from this plant on acute and chronic hyperlipidemia in male albino mice.
Results
The results indicated that the injection of Triton WR-1339 (20 mg/100 g body weight (B.wt.)) and 6-week administration of a high-fat diet (which is an 81.8% standard diet supplemented with 2% cholesterol, 16% lard, and 0.2% cholic acid) significantly increased plasma total cholesterol, triglycerides and low-density lipoprotein cholesterol (LDL-C), but did not affect high-density lipoprotein cholesterol (HDL-C) levels in mice. Administration of a single dose (2 mg/kg B.wt.) of polyphenol, flavonoid, or saponin fractions significantly suppressed the effect of Triton injection on plasma total cholesterol, triglycerides, and LDL-C. In addition, the supplementation of the high-fat diet with polyphenol fraction (2 mg/kg B.wt./day) prevented the increase of total cholesterol, triglycerides, and LDL-C, and effectively increased HDL-C level when compared to mice feeding only the high-fat diet.
Conclusion
In conclusion, phenolic compounds from Thymus atlanticus possess a significant hypocholesterolemic and hypotriglyceridemic effects and, therefore, could have an important role in the management of dyslipidemia.
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Diesinger T, Buko V, Lautwein A, Dvorsky R, Belonovskaya E, Lukivskaya O, Naruta E, Kirko S, Andreev V, Buckert D, Bergler S, Renz C, Schneider E, Kuchenbauer F, Kumar M, Günes C, Büchele B, Simmet T, Müller-Enoch D, Wirth T, Haehner T. Drug targeting CYP2E1 for the treatment of early-stage alcoholic steatohepatitis. PLoS One 2020; 15:e0235990. [PMID: 32701948 PMCID: PMC7377376 DOI: 10.1371/journal.pone.0235990] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/25/2020] [Indexed: 02/07/2023] Open
Abstract
Background and aims Alcoholic steatohepatitis (ASH)—the inflammation of fatty liver—is caused by chronic alcohol consumption and represents one of the leading chronic liver diseases in Western Countries. ASH can lead to organ dysfunction or progress to hepatocellular carcinoma (HCC). Long-term alcohol abstinence reduces this probability and is the prerequisite for liver transplantation—the only effective therapy option at present. Elevated enzymatic activity of cytochrome P450 2E1 (CYP2E1) is known to be critically responsible for the development of ASH due to excessively high levels of reactive oxygen species (ROS) during metabolization of ethanol. Up to now, no rational drug discovery process was successfully initiated to target CYP2E1 for the treatment of ASH. Methods In this study, we applied a rational drug design concept to develop drug candidates (NCE) including preclinical studies. Results A new class of drug candidates was generated successfully. Two of the most promising small compounds named 12-Imidazolyl-1-dodecanol (abbr.: I-ol) and 1-Imidazolyldodecane (abbr.: I-an) were selected at the end of this process of drug discovery and developability. These new ω-imidazolyl-alkyl derivatives act as strong chimeric CYP2E1 inhibitors at a nanomolar range. They restore redox balance, reduce inflammation process as well as the fat content in the liver and rescue the physiological liver architecture of rats consuming continuously a high amount of alcohol. Conclusions Due to its oral application and therapeutic superiority over an off-label use of the hepatoprotector ursodeoxycholic acid (UDCA), this new class of inhibitors marks the first rational, pharmaceutical concept in long-term treatment of ASH.
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Affiliation(s)
- Torsten Diesinger
- Donauklinik Neu-Ulm, Abteilung für Innere Medizin, Neu-Ulm, Germany
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
- Department of Internal Medicine, Neu-Ulm Hospital, Neu-Ulm, Germany
- * E-mail:
| | - Vyacheslav Buko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
- Department of Biotechnology, University of Medical Sciences, Bialystok, Poland
| | - Alfred Lautwein
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Radovan Dvorsky
- Institut für Biochemie und Molekularbiologie II, Medizinische Fakultät der Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Elena Belonovskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Oksana Lukivskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Elena Naruta
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Siarhei Kirko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Viktor Andreev
- Department of Medical Biology and Genetics, Grodno State Medical University, Grodno, Belarus
| | - Dominik Buckert
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
- Department of Internal Medicine II, University Hospital Ulm, Ulm, Germany
| | | | - Christian Renz
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Edith Schneider
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | - Florian Kuchenbauer
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
- University of British Columbia, Terry Fox Laboratory, Vancouver, Canada
| | - Mukesh Kumar
- Department of Urology, University Hospital Ulm, Ulm, Germany
| | - Cagatay Günes
- Department of Urology, University Hospital Ulm, Ulm, Germany
| | - Berthold Büchele
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University Ulm, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University Ulm, Ulm, Germany
| | | | - Thomas Wirth
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Thomas Haehner
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
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Lang SJ, Schmiech M, Hafner S, Paetz C, Werner K, El Gaafary M, Schmidt CQ, Syrovets T, Simmet T. Chrysosplenol d, a Flavonol from Artemisia annua, Induces ERK1/2-Mediated Apoptosis in Triple Negative Human Breast Cancer Cells. Int J Mol Sci 2020; 21:ijms21114090. [PMID: 32521698 PMCID: PMC7312517 DOI: 10.3390/ijms21114090] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 01/01/2023] Open
Abstract
Triple negative human breast cancer (TNBC) is an aggressive cancer subtype with poor prognosis. Besides the better-known artemisinin, Artemisia annua L. contains numerous active compounds not well-studied yet. High-performance liquid chromatography coupled with diode-array and mass spectrometric detection (HPLC-DAD-MS) was used for the analysis of the most abundant compounds of an Artemisia annua extract exhibiting toxicity to MDA-MB-231 TNBC cells. Artemisinin, 6,7-dimethoxycoumarin, arteannuic acid were not toxic to any of the cancer cell lines tested. The flavonols chrysosplenol d and casticin selectively inhibited the viability of the TNBC cell lines, MDA-MB-231, CAL-51, CAL-148, as well as MCF7, A549, MIA PaCa-2, and PC-3. PC-3 prostate cancer cells exhibiting high basal protein kinase B (AKT) and no ERK1/2 activation were relatively resistant, whereas MDA-MB-231 cells with high basal ERK1/2 and low AKT activity were more sensitive to chrysosplenol d treatment. In vivo, chrysosplenol d and casticin inhibited MDA-MB-231 tumor growth on chick chorioallantoic membranes. Both compounds induced mitochondrial membrane potential loss and apoptosis. Chrysosplenol d activated ERK1/2, but not other kinases tested, increased cytosolic reactive oxygen species (ROS) and induced autophagy in MDA-MB-231 cells. Lysosomal aberrations and toxicity could be antagonized by ERK1/2 inhibition. The Artemisia annua flavonols chrysosplenol d and casticin merit exploration as potential anticancer therapeutics.
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Affiliation(s)
- Sophia J. Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
| | - Christian Paetz
- Research Group Biosynthesis/Nuclear Magnetic Resonance, Max Planck Institute for Chemical Ecology, 07745 Jena, Germany;
| | - Katharina Werner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
| | - Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Christoph Q. Schmidt
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; (S.J.L.); (M.S.); (S.H.); (K.W.); (M.E.G.); (C.Q.S.)
- Correspondence: (T.S.); (T.S.); Tel.: +49-731-500-65604 (T.S.); +49-731-500-65600 (T.S.)
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Simmet T, Gaiser AK, Schmiech M, Syrovets T. Nanoparticles as potential therapeutics for acute myeloid leukemia. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.163.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Acute myeloid leukemia (AML) is associated with an unfavourable prognosis. Hence, new therapeutic agents with higher specificity and lower general cytotoxicity are urgently required.
We synthesized biocompatible engineered nanoparticles and used various physico-chemical methods for their characterization. Cell viability was assessed by analysis of activities of mitochondrial dehydrogenases and colony-formation assay. Intracellular targets were identified by Western immunoblotting, fluorescent microscopy, flow cytometry, and various functional tests.
We have previously shown that amino-functionalized polystyrene nanoparticles (PS-NH2) induce autophagy in leukemia cells and are selectively cytotoxic to leukemia cells compared to human macrophages and PBMC. We created now biocompatible amino-functionalized nanoparticles with an inert metallic gold core, Au-NH2, which were selectively highly cytotoxic towards different AML cell lines and PBMC from acute myeloid leukemia patients, but not to PBMC from healthy donors. We show that in leukemia cells, Au-NH2 treatment induces BID cleavage to tBID, increases mitochondrial superoxide levels, inhibits activity of complexes I, III, IV of the mitochondrial electron transport chain, and induces loss of the mitochondrial membrane potential as well as cytochrome c release from the mitochondrial intermembrane space and caspase 3 activation. Likewise, Au-NH2 treatment induces a rapid decrease in mTOR pathway activity, induces lysosomal rupture in THP-1 and HL-60 leukemia cells but not so in macrophages and PBMC. Thus, this engineered material holds great promise as a novel nanotherapeutic for treatment of acute myeloid leukemia independent of cytogenetic profile.
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Khouya T, Ramchoun M, Amrani S, Harnafi H, Rouis M, Couchie D, Simmet T, Alem C. Anti-inflammatory and anticoagulant effects of polyphenol-rich extracts from Thymus atlanticus: An in vitro and in vivo study. J Ethnopharmacol 2020; 252:112475. [PMID: 31843575 DOI: 10.1016/j.jep.2019.112475] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 11/26/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL EVIDENCE Thymus atlanticus (TA) is used in traditional medicine in Morocco to treat chronic inflammatory diseases, after local and oral treatment. AIM OF STUDY This study aimed to investigate the in vitro and in vivo anti-inflammatory and anticoagulant activities of an aqueous extract (AE) and polyphenol fraction (PF) derived from TA. MATERIALS AND METHODS The effect of AE and PF on monocyte chemoattractant protein-1 (MCP-1) production by naïve and LPS-stimulated peritoneal macrophages isolated from C57Bl/6 mice was assessed by ELISA assay. The effect of chronic administration of the extracts at three different doses by oral rout for 2 weeks on blood coagulation and inflammation induced by carrageenan in Wistar rats was evaluated. In addition, the in vitro anticoagulant effect was tested on blood plasma collected from healthy rats using the activated partial thromboplastin time (APTT), prothrombin time (PT) and thrombin time (TT) tests. The acute toxicity of AE was investigated. Phytochemical analysis was carried out by HPLC. RESULTS Analysis by HPLC indicated rosmarinic acid as the main phenolic acid in TA extracts. Compared to control macrophages, MCP-1 level was lower in medium supplemented with AE at 50 and 500 μg/mL and PF at 500 μg/mL, but higher in medium with PF at 50 μg/mL. Rosmarinic and chicoric acids, served as controls, significantly decreased MCP-1 production. Chronic oral administration of TA extracts prevented inflammation induced by carrageenan and induced a significant prolongation of blood coagulation time, in a dose dependant manner, in Wistar rats. The results of the in vitro assay showed that the coagulation time was significantly prolonged in plasma incubated with extracts in APTT, PT and TT tests. Lethal dose 50 of AE in mice was 27.90 ± 1.19 g/kg. CONCLUSION This study indicated TA as an herb with anti-inflammatory and anticoagulant proprieties and supports the traditional use of this plant for the treatment of inflammatory diseases.
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Affiliation(s)
- Tarik Khouya
- Biochemistry and Natural Substances Team, Department of Biology, Faculty of Sciences & Techniques, University Moulay Ismail, 52000, Errachidia, Morocco.
| | - Mhamed Ramchoun
- Biochemistry and Natural Substances Team, Department of Biology, Faculty of Sciences & Techniques, University Moulay Ismail, 52000, Errachidia, Morocco; Laboratory of Biotechnology & Sustainable Development of Natural Resources, Polydisciplinary Faculty, 23000, Beni Mellal, Morocco; Laboratory of Biochemistry and Biotechnologies, Department of Biology, Faculty of Sciences, University Mohamed I, 60 000, Oujda, Morocco.
| | - Souliman Amrani
- Laboratory of Biochemistry and Biotechnologies, Department of Biology, Faculty of Sciences, University Mohamed I, 60 000, Oujda, Morocco.
| | - Hicham Harnafi
- Laboratory of Biochemistry and Biotechnologies, Department of Biology, Faculty of Sciences, University Mohamed I, 60 000, Oujda, Morocco.
| | - Mustapha Rouis
- Biological Adaptation and Ageing (B2A), CNRS UMR-8256/INSERM ERL U-1164, University Pierre et Marie Curie, Paris, France.
| | - Dominique Couchie
- Biological Adaptation and Ageing (B2A), CNRS UMR-8256/INSERM ERL U-1164, University Pierre et Marie Curie, Paris, France.
| | - Thomas Simmet
- Ulm University, Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm, Germany.
| | - Chakib Alem
- Biochemistry and Natural Substances Team, Department of Biology, Faculty of Sciences & Techniques, University Moulay Ismail, 52000, Errachidia, Morocco.
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Schmiech M, Lang SJ, Paetz C, Ulrich J, Büchele B, Syrovets T, Simmet T. 11‐Keto‐a‐Boswellic Acid, a Novel Triterpenoid from
Boswellia
spp., with Cytotoxic Efficacy against Treatment‐Resistant Triple Negative Breast Cancer Cell Lines. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.03970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jin L, Schmiech M, El Gaafary M, Zhang X, Syrovets T, Simmet T. A comparative study on root and bark extracts of Eleutherococcus senticosus and their effects on human macrophages. Phytomedicine 2020; 68:153181. [PMID: 32065954 DOI: 10.1016/j.phymed.2020.153181] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/24/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Eleutherococcus senticosus or Siberian ginseng is a medicinal plant containing adaptogenic substances believed to regulate immune responses. Both, the root and stem bark are commonly used in traditional medicines. PURPOSE The purpose of the present study is to chemically characterize E. senticosus root and bark extracts and to compare their effects on functions of human primary macrophages. STUDY DESIGN AND METHODS HPLC-DAD-MS analysis was used to characterize chemical constituents of alcoholic extracts from E. senticosus root and bark. The data obtained and available databases were combined for network pharmacology analysis. Involvement of predicted pathways was further functionally confirmed by using monocyte-derived human macrophages and endotoxin-free E. senticosus root and bark extracts. RESULTS Chemical analysis showed that the root extract contained more syringin, caffeic acid, and isofraxidin than the bark extract. At variance, bark extract contained more sesamin and oleanolic acid. Coniferyl aldehyde and afzelin were below the limit of quantification in both extracts. Network pharmacology analysis indicated that constituents of E. senticosus might affect the immune cell phenotype and signaling pathways involved in cell metabolism and cytoskeleton regulation. Indeed, both extracts promoted actin polymerization, migration, and phagocytosis of E. coli by macrophages pointing to macrophage polarization towards the M2 phenotype. In addition, treatment with E. senticosus root and bark extracts decreased phosphorylation of Akt on Ser473 and significantly reduced expression of the hemoglobin scavenger receptor CD163 by macrophages. Neither extract affected expression of CD11b, CD80, or CD64 by macrophages. In addition, macrophages treated with the bark extract, but not with the root extract, exhibited activated p38 MAPK and NF-κB and released increased, but still moderate, amounts of proinflammatory TNF-α and IL-6, anti-inflammatory IL-10, and chemotactic CCL1, which all together point to a M2b-like macrophage polarization. Differently, the root extract increased the IL-4-induced expression of anti-inflammatory CD200R. These changes in monocytes are in agreement with an increased M2a macrophage polarization. CONCLUSION The ability of E. senticosus root and bark extracts to promote polarization of human macrophages towards anti-inflammatory M2a and M2b phenotypes, respectively, might underlay the immunoregulatory activities and point to potential wound healing promoting effects of this medicinal plant.
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Affiliation(s)
- Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, 11562 Egypt
| | - Xinlei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fourth Military Medical University, 710032 Xi'an, Shaanxi, P.R. China
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
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Hamed A, Frese M, Elgaafary M, Syrovets T, Sewald N, Simmet T, Shaaban M. Synthesis of novel feruloyl dipeptides with proapoptotic potential against different cancer cell lines. Bioorg Chem 2020; 97:103678. [PMID: 32120076 DOI: 10.1016/j.bioorg.2020.103678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/30/2020] [Accepted: 02/19/2020] [Indexed: 01/21/2023]
Abstract
In this study, a series of novel N-feruloyl dipeptides (10-17) have been synthesized through the coupling of N-feruloyl amino acids (6-9) with glycine/alanine methyl ester hydrochloride. Structures of the peptides were assigned using 1D and 2D NMR and HRESIMS. According to initial in vitro cytotoxic screening against the cervix carcinoma cell line KB-3-1, aromatic dipeptides (12, 13, 16, 17) were the most potent ones among all tested feruloyl dipeptides. Accordingly, these peptides were further intensively investigated as potential anticancer agents against a panel of ten cancer cell lines from different tissue origin. Based on that, compound 17 showed the strongest cytotoxic efficiency towards the whole panel of tested cell lines with IC50 values from 2.1 to 7.9 μM. By contrast, the dipeptides 12, 13 and 16 showed moderate to weak cytotoxicity (IC50 16.1-28.3 or >30, 5.7-21.9 and 3.9-21.2 or ≥30 μM, respectively). Mechanistically, compound 17 induced a strong dissipation of the mitochondrial transmembrane potential and an early activation of caspase 3/7 in the triple-negative MDA-MB-231 breast cancer cell line. In an in vivo model, compound 17 inhibited growth, proliferation and induced apoptosis in MDA-MB-231 xenografted onto the chick chorioallantoic membrane. All the synthesized compounds were also tested against a set of pathogenic bacterial strains, displaying no potential activity.
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Affiliation(s)
- Abdelaaty Hamed
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany; Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo 11884, Egypt.
| | - Marcel Frese
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
| | - Menna Elgaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany; Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm D-89081, Germany.
| | - Mohamed Shaaban
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany; Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, El-Buhouth St. 33, Dokki-Cairo 12622, Egypt.
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Schmiech M, Lang SJ, Syrovets T, Simmet T. Data on cytotoxic activity of an Artemisia annua herbal preparation and validation of the quantification method for active ingredient analysis. Data Brief 2019; 27:104635. [PMID: 31700954 PMCID: PMC6831675 DOI: 10.1016/j.dib.2019.104635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 09/15/2019] [Accepted: 09/27/2019] [Indexed: 12/01/2022] Open
Abstract
The data in this article contain supporting information for the research manuscript entitled “Antitumor activity of an Artemisia annua herbal preparation and identification of active ingredients” by Lang et al. [1]. Momundo Artemisia annua extract and an acetonitrile fraction thereof induce apoptosis in MDA-MB-231 triple negative breast cancer cells as shown by XTT viability assay and induction of the subG0/G1 cell population by flow cytometric analysis. Furthermore, the HPLC-DAD method used to characterize the Artemisia annua herbal preparation as well as UHPLC-MS/MS method used to quantify the most abundant compounds in the extract and its validation are presented.
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Affiliation(s)
- Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
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Dopler A, Guntau L, Harder MJ, Palmer A, Höchsmann B, Schrezenmeier H, Simmet T, Huber-Lang M, Schmidt CQ. Response to Comment on "Self versus Nonself Discrimination by the Soluble Complement Regulators Factor H and FHL-1". J Immunol 2019; 203:2029-2030. [PMID: 31591258 DOI: 10.4049/jimmunol.1900994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Arthur Dopler
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Leonie Guntau
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Markus J Harder
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Annette Palmer
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital Ulm, 89081 Ulm, Germany
| | - Britta Höchsmann
- Institute of Transfusion Medicine, University of Ulm, 89081 Ulm, Germany; and
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Wurttemberg-Hessen and University Hospital, 89081 Ulm, Germany
| | - Hubert Schrezenmeier
- Institute of Transfusion Medicine, University of Ulm, 89081 Ulm, Germany; and
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Wurttemberg-Hessen and University Hospital, 89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital Ulm, 89081 Ulm, Germany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany;
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Schmiech M, Lang SJ, Ulrich J, Werner K, Rashan LJ, Syrovets T, Simmet T. Comparative Investigation of Frankincense Nutraceuticals: Correlation of Boswellic and Lupeolic Acid Contents with Cytokine Release Inhibition and Toxicity against Triple-Negative Breast Cancer Cells. Nutrients 2019; 11:nu11102341. [PMID: 31581678 PMCID: PMC6836131 DOI: 10.3390/nu11102341] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 09/22/2019] [Accepted: 09/26/2019] [Indexed: 12/24/2022] Open
Abstract
For centuries, frankincense extracts have been commonly used in traditional medicine, and more recently, in complementary medicine. Therefore, frankincense constituents such as boswellic and lupeolic acids are of considerable therapeutic interest. Sixteen frankincense nutraceuticals were characterized by high-performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS), revealing major differences in boswellic and lupeolic acid compositions and total contents, which varied from 0.4% to 35.7%. Frankincense nutraceuticals significantly inhibited the release of proinflammatory cytokines, such as TNF-α, IL-6, and IL-8, by LPS-stimulated peripheral blood mononuclear cells (PBMC) and whole blood. Moreover, boswellic and lupeolic acid contents correlated with TNF-α, IL-1β, IL-6, IL-8, and IL-10 inhibition. The nutraceuticals also exhibited toxicity against the human triple-negative breast cancer cell lines MDA-MB-231, MDA-MB-453, and CAL-51 in vitro. Nutraceuticals with total contents of boswellic and lupeolic acids >30% were the most active ones against MDA-MB-231 with a half maximal inhibitory concentration (IC50) ≤ 7.0 µg/mL. Moreover, a frankincense nutraceutical inhibited tumor growth and induced apoptosis in vivo in breast cancer xenografts grown on the chick chorioallantoic membrane (CAM). Among eight different boswellic and lupeolic acids tested, β-ABA exhibited the highest cytotoxicity against MDA-MB-231 with an IC50 = 5.9 µM, inhibited growth of cancer xenografts in vivo, and released proinflammatory cytokines. Its content in nutraceuticals correlated strongly with TNF-, IL-6, and IL-8 release inhibition.
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Affiliation(s)
- Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
| | - Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
| | - Judith Ulrich
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
| | - Katharina Werner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
| | - Luay J Rashan
- Medicinal Plants Division, Research Center, Dhofar University, Salalah 211, Oman.
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
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Hafner S, Raabe M, Wu Y, Wang T, Zuo Z, Rasche V, Syrovets T, Weil T, Simmet T. High‐Contrast Magnetic Resonance Imaging and Efficient Delivery of an Albumin Nanotheranostic in Triple‐Negative Breast Cancer Xenografts. Adv Therap 2019. [DOI: 10.1002/adtp.201900084] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
| | - Marco Raabe
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Inorganic Chemistry IUlm University Albert‐Einstein‐Allee 11 89081 Ulm Germany
| | - Yuzhou Wu
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia MedicaSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Tao Wang
- School of Materials Science and EngineeringSouthwest Jiaotong University Chengdu 610031 P. R. China
| | - Zhi Zuo
- Internal Medicine II, Core Facility Small Animal MRI, Medical FacultyUlm University Albert‐Einstein‐Allee 23 89081 Ulm Germany
| | - Volker Rasche
- Internal Medicine II, Core Facility Small Animal MRI, Medical FacultyUlm University Albert‐Einstein‐Allee 23 89081 Ulm Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
| | - Tanja Weil
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Inorganic Chemistry IUlm University Albert‐Einstein‐Allee 11 89081 Ulm Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
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Lang SJ, Schmiech M, Hafner S, Paetz C, Steinborn C, Huber R, Gaafary ME, Werner K, Schmidt CQ, Syrovets T, Simmet T. Antitumor activity of an Artemisia annua herbal preparation and identification of active ingredients. Phytomedicine 2019; 62:152962. [PMID: 31132755 DOI: 10.1016/j.phymed.2019.152962] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/10/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Artemisia annua L. has gained increasing attention for its anticancer activity. However, beside artemisinin, less is known about the possible bioactive ingredients of Artemisia annua and respective herbal preparations. We hypothesized that, in addition to artemisinin, Artemisia annua preparations might contain multiple ingredients with potential anticancer activity. METHODS MDA-MB-231 triple negative human breast cancer (TNBC) cells along with other treatment resistant, metastatic cancer cell lines were used to investigate in vitro and in vivo the anticancer efficacy of an Artemisia annua extract marketed as a herbal preparation, which contained no detectable artemisinin (limit of detection = 0.2 ng/mg). The extract was characterized by HPLC-DAD and the most abundant compounds were identified by 1H- and 13C NMR spectroscopy and quantified by UHPLC-MS/MS. Cell viability and various apoptotic parameters were quantified by flow cytometry. In vitro data were validated in two in vivo cancer models, the chick chorioallantoic membrane (CAM) assay and in orthotopic breast cancer xenografts in nude mice. RESULTS The Artemisia annua extract, the activity of which could be enhanced by acetonitrile maceration, inhibited the viability of breast (MDA-MB-231 and MCF-7), pancreas (MIA PaCa-2), prostate (PC-3), non-small cell lung cancer (A459) cells, whereas normal mammary epithelial cells, lymphocytes, and PBMC were relatively resistant to extract treatment. Likewise, the extract's most abundant ingredients, chrysosplenol D, arteannuin B, and casticin, but not arteannuic acid or 6,7-dimethoxycoumarin, inhibited the viability of MDA-MB-231 breast cancer cells. The extract induced accumulation of multinucleated cancer cells within 24 h of treatment, increased the number of cells in the S and G2/M phases of the cell cycle, followed by loss of mitochondrial membrane potential, caspase 3 activation, and formation of an apoptotic hypodiploid cell population. Further, the extract inhibited cancer cell proliferation, decreased tumor growth, and induced apoptosis in vivo in TNBC MDA-MB-231 xenografts grown on CAM as well as in nude mice. CONCLUSION An extract of an artemisinin-deficient Artemisia annua herbal preparation exhibits potent anticancer activity against triple negative human breast cancer. New active ingredients of Artemisia annua extract with potential anticancer activity have been identified.
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Affiliation(s)
- Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Christian Paetz
- Max Planck Institute for Chemical Ecology, 07745 Jena, Germany
| | - Carmen Steinborn
- Center for Complementary Medicine, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Roman Huber
- Center for Complementary Medicine, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany; Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Katharina Werner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, 89081 Ulm, Germany.
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30
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Nasr S, Rady M, Gomaa I, Syrovets T, Simmet T, Fayad W, Abdel-Kader M. Ethosomes and lipid-coated chitosan nanocarriers for skin delivery of a chlorophyll derivative: A potential treatment of squamous cell carcinoma by photodynamic therapy. Int J Pharm 2019; 568:118528. [DOI: 10.1016/j.ijpharm.2019.118528] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/01/2019] [Accepted: 07/14/2019] [Indexed: 11/28/2022]
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31
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Jin L, Syrovets T, Scheller JS, Zhang X, Simmet T. Comparative Study on Hyaluronic Acid Binding to Murine SAA1.1 and SAA2.2. ACS Omega 2019; 4:13388-13399. [PMID: 31460467 PMCID: PMC6704436 DOI: 10.1021/acsomega.9b01590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
Persistently high plasma levels of serum amyloid A (SAA) may induce AA amyloidosis in various organs causing their dysfunction. Although SAA isoforms share a high degree of homology, only the SAA1.1 isoform is found in amyloid deposits. SAA1.1 misfolding is a nucleation-dependent process with dimer and trimer formation playing a major role in SAA fibril formation through self-catalyzed recruitment of native SAA molecules. Yet, a structural model of initial SAA oligomerization is still missing. In this study, we constructed a loosely associated model for murine SAA1.1 and SAA2.2 dimers in the presence or absence of hyaluronic acid as an exemplary glycosaminoglycan, a factor known to facilitate SAA fibril formation. Molecular dynamics simulations predicted that hyaluronic acid finally stabilized in a different binding pocket of the pathogenic SAA1.1 dimer compared to the nonpathogenic SAA2.2 dimer. Besides, Markov state modeling points to dynamic behavioral differences between the linker region of SAA1.1 and SAA2.2 and identifies a state unique to pathogenic SAA1.1 while bound to hyaluronic acid. The presence or absence of hyaluronic acid, as well as the dimer interface switch, affects dynamic behavior and possible oligomeric states, proposing a conceivable clue to the deviant pathogenicity of the two SAA isoforms.
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Affiliation(s)
- Lu Jin
- Institute
of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Helmholtzstr. 20, 89081 Ulm, Germany
| | - Tatiana Syrovets
- Institute
of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Helmholtzstr. 20, 89081 Ulm, Germany
| | - Judith S. Scheller
- Institute
of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Xinlei Zhang
- Department
of Medicinal Chemistry, School of Pharmacy, Fourth Military Medical University, 710032 Xi’an, P. R. China
| | - Thomas Simmet
- Institute
of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Helmholtzstr. 20, 89081 Ulm, Germany
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32
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El Gaafary M, Hafner S, Lang SJ, Jin L, Sabry OM, Vogel CV, Vanderwal CD, Syrovets T, Simmet T. A Novel Polyhalogenated Monoterpene Induces Cell Cycle Arrest and Apoptosis in Breast Cancer Cells. Mar Drugs 2019; 17:md17080437. [PMID: 31349625 PMCID: PMC6723102 DOI: 10.3390/md17080437] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is the most common cancer type and a primary cause of cancer mortality among females worldwide. Here, we analyzed the anticancer efficacy of a novel bromochlorinated monoterpene, PPM1, a synthetic analogue of polyhalogenated monoterpenes from Plocamium red algae and structurally similar non-brominated monoterpenes. PPM1, but not the non-brominated monoterpenes, decreased selectively the viability of several triple-negative as well as triple-positive breast cancer cells with different p53 status without significantly affecting normal breast epithelial cells. PPM1 induced accumulation of triple-negative MDA-MB-231 cells with 4N DNA content characterized by decreased histone H3-S10/T3 phosphorylation indicating cell cycle arrest in the G2 phase. Western immunoblot analysis revealed that PPM1 treatment triggered an initial rapid activation of Aurora kinases A/B/C and p21Waf1/Cip1 accumulation, which was followed by accumulation of polyploid >4N cells. Flow cytometric analysis showed mitochondrial potential disruption, caspase 3/7 activation, phosphatidylserine externalization, reduction of the amount polyploid cells, and DNA fragmentation consistent with induction of apoptosis. Cell viability was partially restored by the pan-caspase inhibitor Z-VAD-FMK indicating caspase contribution. In vivo, PPM1 inhibited growth, proliferation, and induced apoptosis in MDA-MB-231 xenografted onto the chick chorioallantoic membrane. Hence, Plocamium polyhalogenated monoterpenes and synthetic analogues deserve further exploration as promising anticancer lead compounds.
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Affiliation(s)
- Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Omar M Sabry
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Carl V Vogel
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, CA 92697-2025, USA
| | - Christopher D Vanderwal
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, CA 92697-2025, USA
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany.
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany.
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33
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Harder MJ, Höchsmann B, Dopler A, Anliker M, Weinstock C, Skerra A, Simmet T, Schrezenmeier H, Schmidt CQ. Different Levels of Incomplete Terminal Pathway Inhibition by Eculizumab and the Clinical Response of PNH Patients. Front Immunol 2019; 10:1639. [PMID: 31379839 PMCID: PMC6657537 DOI: 10.3389/fimmu.2019.01639] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 07/01/2019] [Indexed: 12/13/2022] Open
Abstract
Background: Eculizumab blocks the lytic complement pathway by inhibiting C5 and has become the standard of care for certain complement-mediated diseases. Previously, we have shown that strong complement activation in vitro overrides the C5 inhibition by Eculizumab, which accounts for residual terminal pathway activity. Results: Here we show that the levels of residual hemolysis in ex vivo assays differ markedly (up to 3.4-fold) across sera collected from different paroxysmal nocturnal hemoglobinuria (PNH) patients on Eculizumab treatment. This large variability of residual activity was also found in sera of healthy donors, thus cross-validating the findings in patients. While PNH patients with residual lytic activities of 11–30% exhibited hemolysis levels around the upper limit of normal (i.e., plasma LDH of ~250 u/L), as expected for PNH patients on Eculizumab therapy, we found sustained and markedly increased LDH levels of around 400 u/L for the patient with the highest residual activity of 37%. Furthermore, the clinical history of nine out of 14 PNH patients showed intravascular breakthrough hemolysis at the time of documented infections despite ample amounts of administered Eculizumab and/or experimentally determined excess over C5. Conclusion: The occurrence of extraordinary high levels of residual terminal pathway activity in PNH patients receiving Eculizumab is rare, but can impair the suppression of hemolysis. The commonly observed low levels of residual terminal pathway activity seen for most PNH patients can exacerbate during severe infections and, thus, can cause pharmacodynamic breakthrough hemolysis in PNH patients treated with Eculizumab.
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Affiliation(s)
- Markus J Harder
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Britta Höchsmann
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Wurttemberg-Hessen and University Hospital, Ulm, Germany
| | - Arthur Dopler
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Markus Anliker
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Christof Weinstock
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Wurttemberg-Hessen and University Hospital, Ulm, Germany
| | - Arne Skerra
- Lehrstuhl für Biologische Chemie, Technische Universität München, Freising, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Hubert Schrezenmeier
- Institute of Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Wurttemberg-Hessen and University Hospital, Ulm, Germany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany
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Cyra M, Huss S, Schulte M, Isfort I, Hafner S, Simmet T, Kindler T, Åman P, Wardelmann E, Hartmann W, Trautmann M. Abstract 1257: The transcription factor CREB is essential in myxoid liposarcoma. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-1257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Myxoid Liposarcoma (MLS) is an aggressive soft tissue tumor, characterized by a high rate of local recurrence and development of distant metastases. Most MLS are driven by a specific reciprocal t(12;16) translocation, and the resulting chimeric FUS-DDIT3 fusion protein acts as an oncogenic transcription factor. Although MLS display a higher chemosensitivity than other liposarcoma subtypes, the substantial rate of recurrence and metastasis in MLS underlines the urgent need for novel, biology- guided therapeutic strategies. As the mechanisms of FUS-DDIT3 mediating MLS pathogenesis are incompletely understood, we here investigate the functional relevance of the transcription factor CREB in MLS cells in vitro and in vivo.
Experimental procedures: In a large cohort of MLS tissue specimens (n=92), CREB (S133) and transcriptional targets such as Rb, Cyclin D1, PCNA and Bcl-xL were analyzed by immunohistochemistry. The functional interplay between CREB and FUS-DDIT3 was analyzed by RNAi-mediated knockdown of the chimeric fusion protein in MLS cells and induced expression of FUS-DDIT3 in human mesenchymal stem cells. CREB-mediated transcriptional activity was modulated by CREB-specific siRNA and treatment with small molecule inhibitors (666-15, KG-501, NASTRp and Ro-318220). The biological effects on MLS cell proliferation were monitored by cell viability, apoptosis and immunoblotting assays. An established myxoid liposarcoma avian chorioallantoic membrane model was used for in vivo confirmation.
Results: Elevated CREB phosphorylation (S133) was demonstrated in 60% of MLS tissue specimens by immunohistochemistry. In MLS cells, RNAi-mediated knockdown of FUS-DDIT3 lead to decreased phosphorylation levels of CREB (S133), accompanied by reduced transcriptional activity. Induced expression of FUS-DDIT3 in human mesenchymal stem cells stimulated phosphorylation of CREB (S133) and CREB target gene expression. Phosphorylation of CREB (S133) was induced by IGF-II stimulation and reduced by RNAi-mediated knockdown of IGF-IR. MLS cell viability was significantly reduced by specific RNAi-mediated knockdown of CREB and treatment with small molecule inhibitors (666-15, KG-501, NASTRp and Ro-318220) in vitro and in vivo.
Conclusions: Our preclinical study demonstrates the essential role of CREB-mediated transcriptional activity in myxoid liposarcoma tumorigenesis and provides a molecularly based rationale for a novel targeted therapeutic approach.
Citation Format: Magdalene Cyra, Sebastian Huss, Miriam Schulte, Ilka Isfort, Susanne Hafner, Thomas Simmet, Thomas Kindler, Pierre Åman, Eva Wardelmann, Wolfgang Hartmann, Marcel Trautmann. The transcription factor CREB is essential in myxoid liposarcoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 1257.
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Affiliation(s)
- Magdalene Cyra
- 1University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Division of Translational Pathology, Muenster, Germany
| | - Sebastian Huss
- 2University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Muenster, Germany
| | - Miriam Schulte
- 1University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Division of Translational Pathology, Muenster, Germany
| | - Ilka Isfort
- 1University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Division of Translational Pathology, Muenster, Germany
| | - Susanne Hafner
- 3Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- 3Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Kindler
- 4Department of Hematology, Medical Oncology and Pneumology, University Cancer Center of Mainz, Mainz, Germany
| | - Pierre Åman
- 5Sahlgrenska Cancer Center, University of Gothenburg, Gothenburg, Sweden
| | - Eva Wardelmann
- 2University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Muenster, Germany
| | - Wolfgang Hartmann
- 1University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Division of Translational Pathology, Muenster, Germany
| | - Marcel Trautmann
- 1University Hospital Muenster, Gerhard-Domagk-Institute of Pathology, Division of Translational Pathology, Muenster, Germany
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Trautmann M, Cheng YY, Jensen P, Azoitei N, Brunner I, Hüllein J, Slabicki M, Isfort I, Cyra M, Wardelmann E, Huss S, Altvater B, Rossig C, Hafner S, Simmet T, Ståhlberg A, Åman P, Zenz T, Lange U, Kindler T, Scholl C, Hartmann W, Fröhling S. Abstract 3437: Requirement for YAP1 signaling in myxoid liposarcoma. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-3437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Myxoid liposarcomas (MLS) account for 20% of malignant adipocytic tumors and are characterized by a high rate of local recurrence and development of distant metastases in approximately 40% of patients. Most MLS are driven by the FUS-DDIT3 fusion gene encoding an aberrant transcription factor. The mechanisms whereby FUS-DDIT3 mediates sarcomagenesis are incompletely understood, and strategies to selectively target MLS cells remain elusive. In this study, we employed genome-scale RNA interference (RNAi) screening to uncover that human mesenchymal stem cells engineered to express FUS-DDIT3 and MLS cell lines are dependent on YAP1, a transcriptional co-activator and central effector of the Hippo pathway involved in tissue growth and tumorigenesis. Analysis of a large cohort of primary MLS specimens (n=223) revealed that nuclear YAP1 expression was significantly more prevalent in MLS compared to other liposarcoma subtypes. In support of the concept that increased YAP1-mediated transcriptional activity represents an essential feature of MLS development, RNAi-based YAP1 depletion in cultured MLS cells resulted in suppression of cell viability, cell cycle arrest, cellular senescence, and induction of apoptosis accompanied by decreased YAP1 target gene expression, and YAP1-positive primary MLS tumors showed strong expression of YAP1 downstream effectors such as FOXM1 and PLK1. Mechanistically, FUS-DDIT3 promotes YAP1 transcription, nuclear localization, and transcriptional activity and physically associates with YAP1 in the nucleus of MLS cells, pointing to the coordinate establishment of gene expression programs that promote MLS tumorigenesis. Consistent with the hypothesis that a YAP1-directed therapeutic approach could represent a rational strategy to selectively target FUS-DDIT3-expressing MLS cells, pharmacologic inhibition of YAP1 activity with verteporfin suppressed cell viability and YAP1 target gene expression in MLS cell lines, and the growth-inhibitory effects of YAP1 knockdown or verteporfin treatment could be recapitulated in MLS cell line-based xenograft models. Collectively, our data identify dependence on aberrant YAP1 activity as specific liability of FUS-DDIT3-expressing MLS cells, and provide preclinical evidence that YAP1-mediated signal transduction represents a candidate target for therapeutic intervention that warrants further investigation.
Citation Format: Marcel Trautmann, Ya-Yun Cheng, Patrizia Jensen, Ninel Azoitei, Ines Brunner, Jennifer Hüllein, Mikolaj Slabicki, Ilka Isfort, Magdalene Cyra, Eva Wardelmann, Sebastian Huss, Bianca Altvater, Claudia Rossig, Susanne Hafner, Thomas Simmet, Anders Ståhlberg, Pierre Åman, Thorsten Zenz, Undine Lange, Thomas Kindler, Claudia Scholl, Wolfgang Hartmann, Stefan Fröhling. Requirement for YAP1 signaling in myxoid liposarcoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3437.
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Affiliation(s)
| | - Ya-Yun Cheng
- 2National Center for Tumor Diseases, Heidelberg, Germany
| | | | | | - Ines Brunner
- 2National Center for Tumor Diseases, Heidelberg, Germany
| | | | | | - Ilka Isfort
- 1Münster University Hospital, Münster, Germany
| | | | | | | | | | | | | | | | | | - Pierre Åman
- 4Sahlgrenska Cancer Center, Gothenburg, Sweden
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Trautmann M, Cheng YY, Jensen P, Azoitei N, Brunner I, Hüllein J, Slabicki M, Isfort I, Cyra M, Berthold R, Wardelmann E, Huss S, Altvater B, Rossig C, Hafner S, Simmet T, Ståhlberg A, Åman P, Zenz T, Lange U, Kindler T, Scholl C, Hartmann W, Fröhling S. Requirement for YAP1 signaling in myxoid liposarcoma. EMBO Mol Med 2019; 11:e9889. [PMID: 30898787 PMCID: PMC6505681 DOI: 10.15252/emmm.201809889] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 12/25/2022] Open
Abstract
Myxoid liposarcomas (MLS), malignant tumors of adipocyte origin, are driven by the FUS-DDIT3 fusion gene encoding an aberrant transcription factor. The mechanisms whereby FUS-DDIT3 mediates sarcomagenesis are incompletely understood, and strategies to selectively target MLS cells remain elusive. Here we show, using an unbiased functional genomic approach, that FUS-DDIT3-expressing mesenchymal stem cells and MLS cell lines are dependent on YAP1, a transcriptional co-activator and central effector of the Hippo pathway involved in tissue growth and tumorigenesis, and that increased YAP1 activity is a hallmark of human MLS Mechanistically, FUS-DDIT3 promotes YAP1 expression, nuclear localization, and transcriptional activity and physically associates with YAP1 in the nucleus of MLS cells. Pharmacologic inhibition of YAP1 activity impairs the growth of MLS cells in vitro and in vivo These findings identify overactive YAP1 signaling as unifying feature of MLS development that could represent a novel target for therapeutic intervention.
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Affiliation(s)
- Marcel Trautmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Ya-Yun Cheng
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Patrizia Jensen
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Ninel Azoitei
- Department of Internal Medicine I, Ulm University Hospital, Ulm, Germany
| | - Ines Brunner
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jennifer Hüllein
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Department of Translational Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Mikolaj Slabicki
- Department of Translational Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ilka Isfort
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Magdalene Cyra
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Ruth Berthold
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Eva Wardelmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Sebastian Huss
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Bianca Altvater
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Claudia Rossig
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
- Cells in Motion Cluster of Excellence, University of Münster, Münster, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University Hospital, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University Hospital, Ulm, Germany
| | - Anders Ståhlberg
- Department of Pathology and Genetics, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Pathology and Genetics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Pierre Åman
- Department of Pathology and Genetics, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Thorsten Zenz
- Department of Translational Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Hematology, Zurich University Hospital and University of Zurich, Zürich, Switzerland
| | - Undine Lange
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of Mainz, Mainz, Germany
| | - Thomas Kindler
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of Mainz, Mainz, Germany
- German Cancer Consortium, Heidelberg (Frankfurt/Mainz), Germany
| | - Claudia Scholl
- German Cancer Consortium, Heidelberg (Frankfurt/Mainz), Germany
- Division of Applied Functional Genomics, DKFZ, Heidelberg, Germany
| | - Wolfgang Hartmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
- Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Stefan Fröhling
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium, Heidelberg (Frankfurt/Mainz), Germany
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Lang S, Schmiech M, Hafner S, Paetz C, Schmidt CQ, Syrovets T, Simmet T. Constituents of
Artemisia annua
Dietary Supplements Induce ROS Elevation, ERK Activation, and Apoptosis in Treatment‐Resistant Triple Negative Human Breast Cancer Cells. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.816.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sophia Lang
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Christian Paetz
- Research Group Biosynthesis/NMRMax Planck Institute for Chemical EcologyJenaGermany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
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Hafner S, El Gaafary M, Schmidt CQ, Syrovets T, Simmet T. Natural Sesquiterpene Lactones Induce Apoptotic Cell Death in Prostate Cancer
Cells In Vitro and In Vivo. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.816.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Menna El Gaafary
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
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Schmiech M, Lang S, Werner K, Schmidt CQ, Syrovets T, Simmet T. Boswellic Acid Composition of Frankincense Dietary Supplements and Correlation to Cytotoxic Efficacy against Treatment‐Resistant Triple Negative Breast Cancer Cells. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.816.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michael Schmiech
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Sophia Lang
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Katharina Werner
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Christoph Q Schmidt
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
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40
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Gaiser A, Hafner S, Schmiech M, Büchele B, Schäfer P, Arnim CA, Calzia E, Feuring‐Buske M, Buske C, Vick B, Jeremias I, Syrovets T, Simmet T. Gold Nanoparticles with Selective Antileukemic Activity In Vitro and In Vivo Target Mitochondrial Respiration. Adv Therap 2019. [DOI: 10.1002/adtp.201800149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ann‐Kathrin Gaiser
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
| | - Berthold Büchele
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
| | | | | | - Enrico Calzia
- Institute of Anesthesiological Pathophysiology and Process EngineeringUlm University D‐89081 Ulm Germany
| | - Michaela Feuring‐Buske
- Institute of Experimental Cancer ResearchComprehensive Cancer CenterDepartment of Internal Medicine IIIUniversity Hospital Ulm D‐89081 Ulm Germany
| | - Christian Buske
- Institute of Experimental Cancer ResearchComprehensive Cancer CenterDepartment of Internal Medicine IIIUniversity Hospital Ulm D‐89081 Ulm Germany
| | - Binje Vick
- Department of Apoptosis in Hematopoietic Stem CellsHelmholtz Center MunichGerman Center for Environmental Health (HMGU) D‐81377 Munich Germany
| | - Irmela Jeremias
- Department of Apoptosis in Hematopoietic Stem CellsHelmholtz Center MunichGerman Center for Environmental Health (HMGU) D‐81377 Munich Germany
- Department of PediatricsDr. von Hauner Children's HospitalLudwig Maximilians University D‐80539 Munich Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University D‐89081 Ulm Germany
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Isfort I, Cyra M, Elges S, Kailayangiri S, Altvater B, Rossig C, Steinestel K, Grünewald I, Huss S, Eßeling E, Mikesch JH, Hafner S, Simmet T, Wozniak A, Schöffski P, Larsson O, Wardelmann E, Trautmann M, Hartmann W. SS18-SSX–Dependent YAP/TAZ Signaling in Synovial Sarcoma. Clin Cancer Res 2019; 25:3718-3731. [DOI: 10.1158/1078-0432.ccr-17-3553] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/02/2018] [Accepted: 02/21/2019] [Indexed: 11/16/2022]
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Trautmann M, Cyra M, Isfort I, Jeiler B, Krüger A, Grünewald I, Steinestel K, Altvater B, Rossig C, Hafner S, Simmet T, Becker J, Åman P, Wardelmann E, Huss S, Hartmann W. Phosphatidylinositol-3-kinase (PI3K)/Akt Signaling is Functionally Essential in Myxoid Liposarcoma. Mol Cancer Ther 2019; 18:834-844. [PMID: 30787173 DOI: 10.1158/1535-7163.mct-18-0763] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/13/2018] [Accepted: 01/28/2019] [Indexed: 11/16/2022]
Abstract
Myxoid liposarcoma (MLS) is an aggressive soft-tissue tumor characterized by a specific reciprocal t(12;16) translocation resulting in expression of the chimeric FUS-DDIT3 fusion protein, an oncogenic transcription factor. Similar to other translocation-associated sarcomas, MLS is characterized by a low frequency of somatic mutations, albeit a subset of MLS has previously been shown to be associated with activating PIK3CA mutations. This study was performed to assess the prevalence of PI3K/Akt signaling alterations in MLS and the potential of PI3K-directed therapeutic concepts. In a large cohort of MLS, key components of the PI3K/Akt signaling cascade were evaluated by next generation seqeuncing (NGS), fluorescence in situ hybridization (FISH), and immunohistochemistry (IHC). In three MLS cell lines, PI3K activity was inhibited by RNAi and the small-molecule PI3K inhibitor BKM120 (buparlisib) in vitro An MLS cell line-based avian chorioallantoic membrane model was applied for in vivo confirmation. In total, 26.8% of MLS cases displayed activating alterations in PI3K/Akt signaling components, with PIK3CA gain-of-function mutations representing the most prevalent finding (14.2%). IHC suggested PI3K/Akt activation in a far larger subgroup of MLS, implying alternative mechanisms of pathway activation. PI3K-directed therapeutic interference showed that MLS cell proliferation and viability significantly depended on PI3K-mediated signals in vitro and in vivo Our preclinical study underlines the elementary role of PI3K/Akt signals in MLS tumorigenesis and provides a molecularly based rationale for a PI3K-targeted therapeutic approach which may be particularly effective in the subgroup of tumors carrying activating genetic alterations in PI3K/Akt signaling components.
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Affiliation(s)
- Marcel Trautmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany. .,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Magdalene Cyra
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Ilka Isfort
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Birte Jeiler
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Arne Krüger
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Inga Grünewald
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Konrad Steinestel
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany.,Institute of Pathology and Molecular Pathology, Bundeswehrkrankenhaus Ulm, Ulm, Germany
| | - Bianca Altvater
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Claudia Rossig
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany.,Cells in Motion Cluster of Excellence (EXC 1003 - CiM), University of Münster, Münster, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, Germany
| | - Jessica Becker
- Institute of Human Genetics, School of Medicine & University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Pierre Åman
- Sahlgrenska Cancer Center, University of Gothenburg, Gothenburg, Sweden
| | - Eva Wardelmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Sebastian Huss
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
| | - Wolfgang Hartmann
- Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany. .,Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, Münster University Hospital, Münster, Germany
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Dopler A, Guntau L, Harder MJ, Palmer A, Höchsmann B, Schrezenmeier H, Simmet T, Huber-Lang M, Schmidt CQ. Self versus Nonself Discrimination by the Soluble Complement Regulators Factor H and FHL-1. J I 2019; 202:2082-2094. [DOI: 10.4049/jimmunol.1801545] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/14/2019] [Indexed: 12/14/2022]
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Harder M, Höchsmann B, Anliker M, Simmet T, Schrezenmeier H, Schmidt C. Clinical implications of incomplete C5 inhibition by Eculizumab illustrated by experimental and clinical data from 15 PNH patients. Mol Immunol 2018. [DOI: 10.1016/j.molimm.2018.06.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Kuan SL, Fischer S, Hafner S, Wang T, Syrovets T, Liu W, Tokura Y, Ng DYW, Riegger A, Förtsch C, Jäger D, Barth TFE, Simmet T, Barth H, Weil T. Boosting Antitumor Drug Efficacy with Chemically Engineered Multidomain Proteins. Adv Sci (Weinh) 2018; 5:1701036. [PMID: 30128225 PMCID: PMC6097141 DOI: 10.1002/advs.201701036] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/01/2018] [Indexed: 05/05/2023]
Abstract
A facile chemical approach integrating supramolecular chemistry, site-selective protein chemistry, and molecular biology is described to engineer synthetic multidomain protein therapeutics that sensitize cancer cells selectively to significantly enhance antitumor efficacy of existing chemotherapeutics. The desired bioactive entities are assembled via supramolecular interactions at the nanoscale into structurally ordered multiprotein complexes comprising a) multiple copies of the chemically modified cyclic peptide hormone somatostatin for selective targeting and internalization into human A549 lung cancer cells expressing SST-2 receptors and b) a new cysteine mutant of the C3bot1 (C3) enzyme from Clostridium botulinum, a Rho protein inhibitor that affects and influences intracellular Rho-mediated processes like endothelial cell migration and blood vessel formation. The multidomain protein complex, SST3-Avi-C3, retargets C3 enzyme into non-small cell lung A549 cancer cells and exhibits exceptional tumor inhibition at a concentration ≈100-fold lower than the clinically approved antibody bevacizumab (Avastin) in vivo. Notably, SST3-Avi-C3 increases tumor sensitivity to a conventional chemotherapeutic (doxorubicin) in vivo. These findings show that the integrated approach holds vast promise to expand the current repertoire of multidomain protein complexes and can pave the way to important new developments in the area of targeted and combination cancer therapy.
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Affiliation(s)
- Seah Ling Kuan
- Max‐Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Stephan Fischer
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
- Institute of Pharmacology and ToxicologyUniversity of Ulm Medical CenterAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm UniversityHelmholtzstraße 2089081UlmGermany
| | - Tao Wang
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
- School of Materials Science and EngineeringSouthwest Jiaotong University610031ChengduP. R. China
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm UniversityHelmholtzstraße 2089081UlmGermany
| | - Weina Liu
- Max‐Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Yu Tokura
- Max‐Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
| | - David Yuen Wah Ng
- Max‐Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Andreas Riegger
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Christina Förtsch
- Institute of Pharmacology and ToxicologyUniversity of Ulm Medical CenterAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Daniela Jäger
- Institute of PathologyUlm UniversityAlbert‐Einstein‐Allee 2389070UlmGermany
| | - Thomas F. E. Barth
- Institute of PathologyUlm UniversityAlbert‐Einstein‐Allee 2389070UlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm UniversityHelmholtzstraße 2089081UlmGermany
| | - Holger Barth
- Institute of Pharmacology and ToxicologyUniversity of Ulm Medical CenterAlbert‐Einstein‐Allee 1189081UlmGermany
| | - Tanja Weil
- Max‐Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 1189081UlmGermany
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Abstract
SummaryThe objective of this study was to characterize the plasmin-induced stimulation of leukotriene (LT) B4 biosynthesis in human peripheral monocytes (PM). Plasmin up to 175 × 10-3 CTA U/ml triggers a concentration-dependent release of 5-lipoxygenase-derived LTB4 while release of the cyclooxygenase products thromboxane (TX) B2 and prostaglandin (PG) E2 remained unaffected. The stimulatory effect appeared to be specific in as much as 1) it was found in PM, but not in polymorphonuclear neutrophils (PMN), 2) it requires the lysine binding sites of plasmin molecule since it was inhibited by the lysine analogues 6-aminohexanoic acid (6-AHA) and trans-4(aminometh-yl)cyclohexane-l-carboxylic acid (t-AMCA), 3) the intact catalytic center of plasmin is required since neither plasminogen nor catalytic center-blocked plasmin share the stimulatory effect of active plasmin, 4) other serine proteases such as a-chymotrypsin, human neutrophil elastase and cathepsin G did not stimulate release of detectable amounts of LTB4 from PM. In addition, catalytic center-blocked plasmin antagonized the stimulatory effect of active plasmin. Plasmin-mediated monocyte activation apparently proceeds via a pertussis toxin-sensitive G protein. Plasmin did not increase inositol (1,4,5) trisphosphate levels, but a time- and concentration-dependent stimulation of cyclic GMP formation was observed. The data show that plasmin is a specific stimulus for human peripheral monocytes. Plasmin may be an important link between the coagulation cascade and inflammatory reactions.
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Affiliation(s)
- Ingo Weide
- The Department of Pharmacology and Toxicology, Ruhr University, Bochum, Germany
| | - Bettina Tippler
- The Department of Pharmacology and Toxicology, Ruhr University, Bochum, Germany
| | - Tatjana Syrovets
- The Department of Pharmacology and Toxicology, Ruhr University, Bochum, Germany
| | - Thomas Simmet
- The Department of Pharmacology and Toxicology, Ruhr University, Bochum, Germany
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Gaiser A, Syrovets T, Hafner S, Schmiech M, Schäfer P, Calzia E, Simmet T. Inhibition of Mitochondrial Respiration by Amino‐Functionalized Gold Nanoparticles in Acute Myeloid Leukemia Cells. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.801.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ann‐Kathrin Gaiser
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | | | - Enrico Calzia
- Institute of Anesthesiological Pathophysiology and Process EngineeringUlm UniversityUlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
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Hafner S, Zuo Z, Rasche V, Syrovets T, Simmet T. The Chick Chorioallantoic Membrane (CAM) as a Multi‐Purpose Preclinical Model in Oncology. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.565.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Zhi Zuo
- Department of Internal Medicine IICore Facility Small Animal MRIUlm UniversityUlmGermany
| | - Volker Rasche
- Department of Internal Medicine IICore Facility Small Animal MRIUlm UniversityUlmGermany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical PharmacologyUlm UniversityUlmGermany
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Rubio Ayala M, Syrovets T, Hafner S, Zablotskii V, Dejneka A, Simmet T. Spatiotemporal magnetic fields enhance cytosolic Ca 2+ levels and induce actin polymerization via activation of voltage-gated sodium channels in skeletal muscle cells. Biomaterials 2018; 163:174-184. [PMID: 29471128 DOI: 10.1016/j.biomaterials.2018.02.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/27/2018] [Accepted: 02/13/2018] [Indexed: 12/13/2022]
Abstract
Cellular function is modulated by the electric membrane potential controlling intracellular physiology and signal propagation from a motor neuron to a muscle fiber resulting in muscle contraction. Unlike electric fields, magnetic fields are not attenuated by biological materials and penetrate deep into the tissue. We used complex spatiotemporal magnetic fields (17-70 mT) to control intracellular signaling in skeletal muscle cells. By changing different parameters of the alternating magnetic field (amplitude, inversion time, rotation frequency), we induced transient depolarization of cellular membranes leading to i) Na+ influx through voltage-gated sodium channels (VGSC), ii) cytosolic calcium increase, and iii) VGSC- and ryanodine receptor-dependent increase of actin polymerization. The ion fluxes occurred only, when the field was applied and returned to baseline after the field was turned off. The 30-s-activation-cycle could be repeated without any loss of signal intensity. By contrast, static magnetic fields of the same strength exhibited no effect on myotube Ca2+ levels. Mathematical modeling suggested a role for the alternating magnetic field-induced eddy current, which mediates a local change in the membrane potential triggering the activation of VGSC. These findings might pave the way for the use of complex magnetic fields to improve function of skeletal muscles in myopathies.
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Affiliation(s)
- Mónica Rubio Ayala
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Vitalii Zablotskii
- Institute of Physics Academy of Sciences of the Czech Republic, Prague 8, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics Academy of Sciences of the Czech Republic, Prague 8, Czech Republic
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany.
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El Gaafary M, Ezzat SM, El Sayed AM, Sabry OM, Hafner S, Lang S, Schmiech M, Syrovets T, Simmet T. Acovenoside A Induces Mitotic Catastrophe Followed by Apoptosis in Non-Small-Cell Lung Cancer Cells. J Nat Prod 2017; 80:3203-3210. [PMID: 29190084 DOI: 10.1021/acs.jnatprod.7b00546] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We investigated the cytotoxic potential of the cardenolide glycoside acovenoside A against non-small-cell lung cancer cells. Lung cancer is the leading cause of cancer-related mortality and the second most common cancer diagnosed. Epidemiological studies revealed a direct correlation between the regular administration of cardiac glycosides and a lower incidence of various cancers. Acovenoside A, isolated from the pericarps of Acokanthera oppositifolia, potently inhibited proliferation and induced cytotoxicity in A549 non-small-cell lung cancer cells with an IC50 of 68 ± 3 nM after 48 h of exposure. Compared to the antineoplastic agent doxorubicin, acovenoside A was more potent in inhibiting the viability of A549 cancer cells. Moreover, acovenoside A exhibited selectivity against cancer cells, being significantly less toxic to lung fibroblasts and nontoxic for peripheral blood mononuclear cells. Analysis of the cell cycle profile in acovenoside A-treated A549 cells revealed mitotic arrest, due to accumulation of the G2/M regulators cyclin B1 and CDK1, and cytokinesis failure. Furthermore, acovenoside A affected the mitochondrial membrane integrity and induced production of radical oxygen species, which resulted in induction of canonical apoptosis, manifested by caspase 3 activation and DNA fragmentation. Based on our results, acovenoside A warrants further exploration as a potential anticancer lead.
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Affiliation(s)
- Menna El Gaafary
- Department of Pharmacognosy, College of Pharmacy, Cairo University , Giza 11562, Egypt
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
| | - Shahira M Ezzat
- Department of Pharmacognosy, College of Pharmacy, Cairo University , Giza 11562, Egypt
- Pharmacognosy Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) , Cairo 11562, Egypt
| | - Abeer M El Sayed
- Department of Pharmacognosy, College of Pharmacy, Cairo University , Giza 11562, Egypt
| | - Omar M Sabry
- Department of Pharmacognosy, College of Pharmacy, Cairo University , Giza 11562, Egypt
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
| | - Sophia Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
| | - Michael Schmiech
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University , Ulm D-89081, Germany
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