1
|
Ahmed NM, Mohamed MS, Awad SM, Abd El-Hameed RH, El-tawab NAA, Gaballah MS, Said AM. Design, synthesis, molecular modelling and biological evaluation of novel 6-amino-5-cyano-2-thiopyrimidine derivatives as potent anticancer agents against leukemia and apoptotic inducers. J Enzyme Inhib Med Chem 2024; 39:2304625. [PMID: 38348824 PMCID: PMC10866072 DOI: 10.1080/14756366.2024.2304625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/08/2024] [Indexed: 02/15/2024] Open
Abstract
Herein, a novel series of 6-amino-5-cyano-2-thiopyrimidines and condensed pyrimidines analogues were prepared. All the synthesized compounds (1a-c, 2a-c, 3a-c, 4a-r and 5a-c) were evaluated for in vitro anticancer activity by the National Cancer Institute (NCI; MD, USA) against 60 cell lines. Compound 1c showed promising anticancer activity and was selected for the five-dose testing. Results demonstrated that compound 1c possessed broad spectrum anti-cancer activity against the nine cancerous subpanels tested with selectivity ratio ranging from 0.7 to 39 at the GI50 level with high selectivity towards leukaemia. Mechanistic studies showed that Compound 1c showed comparable activity to Duvelisib against PI3Kδ (IC50 = 0.0034 and 0.0025 μM, respectively) and arrested cell cycle at the S phase and displayed significant increase in the early and late apoptosis in HL60 and leukaemia SR cells. The necrosis percentage showed a significant increase from 1.13% to 3.41% in compound 1c treated HL60 cells as well as from 1.51% to 4.72% in compound 1c treated leukaemia SR cells. Also, compound 1c triggered apoptosis by activating caspase 3, Bax, P53 and suppressing Bcl2. Moreover, 1c revealed a good safety profile against human normal lung fibroblast cell line (WI-38 cells). Molecular analysis of Duvelisib and compound 1c in PI3K was performed. Finally, these results suggest that 2-thiopyrimidine derivative 1c might serve as a model for designing novel anticancer drugs in the future.
Collapse
Affiliation(s)
- Naglaa M. Ahmed
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | - Mosaad S. Mohamed
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | | | | | - Mohamed S. Gaballah
- Biochemistry and Molecular Biology Department, Helwan University, Ein-Helwan, Egypt
| | - Ahmed M. Said
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, USA
- Athenex Inc, Buffalo, NY, USA
| |
Collapse
|
2
|
Abstract
Eryptosis is a regulated cell death (RCD) of mature erythrocytes initially described as a counterpart of apoptosis for enucleated cells. However, over the recent years, a growing number of studies have emphasized certain differences between both cell death modalities. In this review paper, we underline the hallmarks of eryptosis and apoptosis and highlight resemblances and dissimilarities between both RCDs. We summarize and critically discuss differences in the impact of caspase-3, Ca2+ signaling, ROS signaling pathways, opposing roles of casein kinase 1α, protein kinase C, Janus kinase 3, cyclin-dependent kinase 4, and AMP-activated protein kinase to highlight a certain degree of divergence between apoptosis and eryptosis. This review emphasizes the crucial importance of further studies that focus on deepening our knowledge of cell death machinery and identifying novel differences between cell death of nucleated and enucleated cells. This might provide evidence that erythrocytes can be defined as viable entities capable of programmed cell destruction. Additionally, the revealed cell type-specific patterns in cell death can facilitate the development of cell death-modulating therapeutic agents.
Collapse
Affiliation(s)
- Anton Tkachenko
- 1st Faculty of Medicine, BIOCEV, Charles University, Průmyslová 595, 25250, Vestec, Czech Republic.
| |
Collapse
|
3
|
Shi Q, Tong Y, Zheng Y, Liu Y, Yin T. PDT-sensitized ROS-responsive dextran nanosystem for maximizing antitumor potency of multi-target drugs. Int J Pharm 2023; 633:122567. [PMID: 36586628 DOI: 10.1016/j.ijpharm.2022.122567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/03/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
The heterogeneity of tumor microenvironment leads to uneven distribution of bio-stimuli. Thus, the multi-site delivery efficiency of responsive drug delivery systems (DDS) inner tumor was always limited. Herein, we proposed a combination strategy of photodynamic therapy (PDT) with ROS-responsive nanosystem which was constructed from dextran-phenylboronic acid pinacol ester conjugates. This combination utilized PDT to amplify and homogenize tissular oxidation level, and achieve effective multi-site response and release of multi-target drugs like gambogic acid (GA). Our research demonstrated the successful preparation of GA and protoporphyrin IX (PpIX) co-loaded nanoparticles, and the PDT-mediated spatiotemporal controlled multi-site drug release in simulated conditions. Furthermore, data from in vitro and in vivo researches on B16F10 cells, HUVEC, and B16F10-bearing C57BL/6 mice potently confirmed the enhanced multi-mechanism regulations of GA mediated by the effective and homogeneous tumoral release. This tactic based on bio-stimuli amplification and homogenization proposes a paradigm to maximize the potency of multi-target drugs.
Collapse
Affiliation(s)
- Qin Shi
- School of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng 224005, China.
| | - Yuqing Tong
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yuzhao Zheng
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yanqi Liu
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Tingjie Yin
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
| |
Collapse
|
4
|
Cheng F, Xu Q, Li Q, Cui Z, Li W, Zeng F. Adverse reactions after treatment with dasatinib in chronic myeloid leukemia: Characteristics, potential mechanisms, and clinical management strategies. Front Oncol 2023; 13:1113462. [PMID: 36814818 PMCID: PMC9939513 DOI: 10.3389/fonc.2023.1113462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
Dasatinib, a second-generation tyrosine kinase inhibitor, is recommended as first-line treatment for patients newly diagnosed with chronic myeloid leukemia (CML) and second-line treatment for those who are resistant or intolerant to therapy with imatinib. Dasatinib is superior to imatinib in terms of clinical response; however, the potential pulmonary toxicities associated with dasatinib, such as pulmonary arterial hypertension and pleural effusion, may limit its clinical use. Appropriate management of dasatinib-related severe events is important for improving the quality of life and prognosis of patients with CML. This review summarizes current knowledge regarding the characteristics, potential mechanisms, and clinical management of adverse reactions occurring after treatment of CML with dasatinib.
Collapse
Affiliation(s)
- Fang Cheng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Qiling Xu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Qiang Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Zheng Cui
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,*Correspondence: Weiming Li, ; Fang Zeng,
| | - Fang Zeng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China,*Correspondence: Weiming Li, ; Fang Zeng,
| |
Collapse
|
5
|
The Effect of Low Doses of Zearalenone (ZEN) on the Bone Marrow Microenvironment and Haematological Parameters of Blood Plasma in Pre-Pubertal Gilts. Toxins (Basel) 2022; 14:toxins14020105. [PMID: 35202133 PMCID: PMC8880195 DOI: 10.3390/toxins14020105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/15/2022] Open
Abstract
The aim of this study was to determine whether low doses of zearalenone (ZEN) influence the carry-over of ZEN and its metabolites to the bone marrow microenvironment and, consequently, haematological parameters. Pre-pubertal gilts (with a body weight of up to 14.5 kg) were exposed to daily ZEN doses of 5 μg/kg BW (group ZEN5, n = 15), 10 μg/kg BW (group ZEN10, n = 15), 15 μg/kg BW (group ZEN15, n = 15), or were administered a placebo (group C, n = 15) throughout the entire experiment. Bone marrow was sampled on three dates (exposure dates 7, 21, and 42—after slaughter) and blood for haematological analyses was sampled on 10 dates. Significant differences in the analysed haematological parameters (WBC White Blood Cells, MONO—Monocytes, NEUT—Neutrophils, LYMPH—Lymphocytes, LUC—Large Unstained Cells, RBC—Red Blood Cells, HGB—Haemoglobin, HCT—Haematocrit, MCH—Mean Corpuscular Volume, MCHC—Mean Corpuscular Haemoglobin Concentrations, PLT—Platelet Count and MPV—Mean Platelet Volume) were observed between groups. The results of the experiment suggest that exposure to low ZEN doses triggered compensatory and adaptive mechanisms, stimulated the local immune system, promoted eryptosis, intensified mycotoxin biotransformation processes in the liver, and produced negative correlations between mycotoxin concentrations and selected haematological parameters.
Collapse
|
6
|
Mostazo MGC, Kurrle N, Casado M, Fuhrmann D, Alshamleh I, Häupl B, Martín-Sanz P, Brüne B, Serve H, Schwalbe H, Schnütgen F, Marin S, Cascante M. Metabolic Plasticity Is an Essential Requirement of Acquired Tyrosine Kinase Inhibitor Resistance in Chronic Myeloid Leukemia. Cancers (Basel) 2020; 12:cancers12113443. [PMID: 33228196 PMCID: PMC7699488 DOI: 10.3390/cancers12113443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/06/2020] [Accepted: 11/17/2020] [Indexed: 11/30/2022] Open
Abstract
Simple Summary Tyrosine kinase inhibitors (TKIs), such as imatinib, have become the standard initial treatment of choice for chronic myeloid leukemia (CML) patients. However, one obstacle to face is that a significant proportion of patients presents poor response to TKIs, or acquires resistance resulting in disease relapses. Mutations in BCR-ABL1 protein are a well described mechanism of resistance but other not well established mechanisms outside BCR-ABL1 mutations are emerging as important in the acquisition of resistance. Abnormal metabolism of CML cells that acquire resistance to imatinib has been pointed out as a putative downstream key event, but deep studies aimed to unveil metabolic adaptations associated with acquired resistance are still lacking. Here, we perform an exhaustive study on metabolic reprogramming associated with acquired imatinib resistance and we identify metabolic vulnerabilities of CML imatinib resistant cells that could pave the way for new therapies targeting TKI failure. Abstract Tyrosine kinase inhibitors (TKIs) are currently the standard chemotherapeutic agents for the treatment of chronic myeloid leukemia (CML). However, due to TKI resistance acquisition in CML patients, identification of new vulnerabilities is urgently required for a sustained response to therapy. In this study, we have investigated metabolic reprogramming induced by TKIs independent of BCR-ABL1 alterations. Proteomics and metabolomics profiling of imatinib-resistant CML cells (ImaR) was performed. KU812 ImaR cells enhanced pentose phosphate pathway, glycogen synthesis, serine-glycine-one-carbon metabolism, proline synthesis and mitochondrial respiration compared with their respective syngeneic parental counterparts. Moreover, the fact that only 36% of the main carbon sources were utilized for mitochondrial respiration pointed to glycerol-phosphate shuttle as mainly contributors to mitochondrial respiration. In conclusion, CML cells that acquire TKIs resistance present a severe metabolic reprogramming associated with an increase in metabolic plasticity needed to overcome TKI-induced cell death. Moreover, this study unveils that KU812 Parental and ImaR cells viability can be targeted with metabolic inhibitors paving the way to propose novel and promising therapeutic opportunities to overcome TKI resistance in CML.
Collapse
Affiliation(s)
- Miriam G. Contreras Mostazo
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain;
- Institute of Biomedicine of University of Barcelona, 08028 Barcelona, Spain
- Department of Medicine, Hematology/Oncology, University Hospital Frankfurt, Goethe-University, 60590 Frankfurt am Main, Germany; (N.K.); (B.H.); (H.S.); (F.S.)
| | - Nina Kurrle
- Department of Medicine, Hematology/Oncology, University Hospital Frankfurt, Goethe-University, 60590 Frankfurt am Main, Germany; (N.K.); (B.H.); (H.S.); (F.S.)
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Frankfurt Cancer Institute (FCI), Goethe University, 60590 Frankfurt am Main, Germany;
| | - Marta Casado
- Biomedicine Institute of Valencia, IBV-CSIC, 46010 Valencia, Spain;
- CIBER of Hepatic and Digestive Diseases (CIBEREHD), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain;
| | - Dominik Fuhrmann
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany;
| | - Islam Alshamleh
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Center for Biomolecular Magnetic Resonance, Institute of Organic Chemistry and Chemical Biology, Goethe-University, 60438 Frankfurt am Main, Germany
| | - Björn Häupl
- Department of Medicine, Hematology/Oncology, University Hospital Frankfurt, Goethe-University, 60590 Frankfurt am Main, Germany; (N.K.); (B.H.); (H.S.); (F.S.)
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Frankfurt Cancer Institute (FCI), Goethe University, 60590 Frankfurt am Main, Germany;
| | - Paloma Martín-Sanz
- CIBER of Hepatic and Digestive Diseases (CIBEREHD), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain;
- “Alberto Sols” Biomedical Research Institute, CSIC-UAM, 28029 Madrid, Spain
| | - Bernhard Brüne
- Frankfurt Cancer Institute (FCI), Goethe University, 60590 Frankfurt am Main, Germany;
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany;
- Project Group Translational Medicine and Pharmacology TMP, Fraunhofer Institute for Molecular Biology and Applied Ecology, 60596 Frankfurt am Main, Germany
| | - Hubert Serve
- Department of Medicine, Hematology/Oncology, University Hospital Frankfurt, Goethe-University, 60590 Frankfurt am Main, Germany; (N.K.); (B.H.); (H.S.); (F.S.)
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Frankfurt Cancer Institute (FCI), Goethe University, 60590 Frankfurt am Main, Germany;
| | - Harald Schwalbe
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Center for Biomolecular Magnetic Resonance, Institute of Organic Chemistry and Chemical Biology, Goethe-University, 60438 Frankfurt am Main, Germany
| | - Frank Schnütgen
- Department of Medicine, Hematology/Oncology, University Hospital Frankfurt, Goethe-University, 60590 Frankfurt am Main, Germany; (N.K.); (B.H.); (H.S.); (F.S.)
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (I.A.); (H.S.)
- Frankfurt Cancer Institute (FCI), Goethe University, 60590 Frankfurt am Main, Germany;
| | - Silvia Marin
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain;
- Institute of Biomedicine of University of Barcelona, 08028 Barcelona, Spain
- CIBER of Hepatic and Digestive Diseases (CIBEREHD), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain;
- Metabolomics Node at Spanish National Bioinformatics Institute (INB-ISCIII-ES- ELIXIR), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain
- Correspondence: (S.M.); (M.C.); Tel.: +34-934021217 (S.M.); +34-934021593 (M.C.)
| | - Marta Cascante
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain;
- Institute of Biomedicine of University of Barcelona, 08028 Barcelona, Spain
- CIBER of Hepatic and Digestive Diseases (CIBEREHD), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain;
- Metabolomics Node at Spanish National Bioinformatics Institute (INB-ISCIII-ES- ELIXIR), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain
- Correspondence: (S.M.); (M.C.); Tel.: +34-934021217 (S.M.); +34-934021593 (M.C.)
| |
Collapse
|
7
|
Beke Debreceni I, Mezei G, Batár P, Illés Á, Kappelmayer J. Dasatinib Inhibits Procoagulant and Clot Retracting Activities of Human Platelets. Int J Mol Sci 2019; 20:ijms20215430. [PMID: 31683623 PMCID: PMC6862041 DOI: 10.3390/ijms20215430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/28/2019] [Accepted: 10/30/2019] [Indexed: 12/29/2022] Open
Abstract
Tyrosine kinase inhibitors (TKI) such as the BCR-ABL inhibitor dasatinib and nilotinib are highly effective therapies for chronic myeloid leukemia (CML). However, several lines of evidence suggest that dasatinib can induce bleeding which may be due to impaired collagen-induced platelet adhesion, aggregation, and secretion. Sarcoma family kinases (SFK) play central role in the GPVI-induced signaling pathway. We aimed to investigate whether and how dasatinib can modulate SFK-mediated platelet procoagulant activity in a purified system and in dasatinib/nilotinib treated CML patients. In platelet rich plasmas of healthy volunteers, dasatinib dose-dependently reduced convulxin-induced phosphatidylserine exposure and attenuated thrombin formation. Similarly to these changes, integrin activation and clot retraction were also significantly inhibited by 100 nM dasatinib. Platelets isolated from dasatinib treated patients showed a significantly lower phosphatidylserine expression upon convulxin activation compared to premedication levels. In these samples, thrombin generation was significantly slower, and the quantity of formed thrombin was less compared to the trough sample. Western blot analyses showed decreased phosphorylation levels of the C-terminal tail and the activation loop of SFKs upon dasatinib administration. Taken together, these results suggest that dasatinib inhibits the formation of procoagulant platelets via the GPVI receptor by inhibiting phosphorylation of SFKs.
Collapse
Affiliation(s)
- Ildikó Beke Debreceni
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Kálmán Laki Doctoral School, 4032 Debrecen, Hungary.
| | - Gabriella Mezei
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - Péter Batár
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - Árpád Illés
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Kálmán Laki Doctoral School, 4032 Debrecen, Hungary.
| |
Collapse
|
8
|
Ahmed NM, Youns M, Soltan MK, Said AM. Design, synthesis, molecular modelling, and biological evaluation of novel substituted pyrimidine derivatives as potential anticancer agents for hepatocellular carcinoma. J Enzyme Inhib Med Chem 2019; 34:1110-1120. [PMID: 31117890 PMCID: PMC6537702 DOI: 10.1080/14756366.2019.1612889] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
New anticancer agents are highly needed to overcome cancer cell resistance. A novel series of pyrimidine pyrazoline-anthracene derivatives (PPADs) (4a-t) were designed and synthesised. The anti-liver cancer activity of all compounds was screened in vitro against two hepatocellular carcinoma (HCC) cell lines (HepG2 and Huh-7) as well as normal fibroblast cells by resazurin assay. The designed compounds 4a-t showed a broad-spectrum anticancer activity against the two cell lines and their activity was more prominent on cancer compared to normal cells. Compound 4e showed high potency against HepG2 and Huh-7 cell lines ((IC50=5.34 and 6.13 μg/mL, respectively) comparable to that of doxorubicin (DOX) activities. A structure activity relationship (SAR) has been investigated and compounds 4e, 4i, 4m, and 4q were the most promising anticancer agents against tested cell lines. These compounds induced apoptosis in HepG2 and Huh-7 cells through significant activation of caspase 3/7 at all tested concentrations. In conclusion, 4e could be a potent anticancer drug.
Collapse
Affiliation(s)
- Naglaa Mohamed Ahmed
- a Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy , Helwan University , Cairo , Egypt
| | - Mahmoud Youns
- b Biochemistry Department, Faculty of Pharmacy , Helwan University , Cairo , Egypt.,c Department of Functional Genome Analysis , German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Moustafa Khames Soltan
- d Medicinal Chemistry Department, Faculty of Pharmacy , Zagazig University , Zagazig , Egypt.,e Oman College of Health Sciences , Muscat , Sultanate of Oman
| | - Ahmed Mohammed Said
- a Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy , Helwan University , Cairo , Egypt.,f Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , NY , USA
| |
Collapse
|
9
|
Totino PRR, de Souza HADS, Correa EHC, Daniel-Ribeiro CT, Ferreira-da-Cruz MDF. Eryptosis of non-parasitized erythrocytes is related to anemia in Plasmodium berghei low parasitema malaria of Wistar rats. Parasitol Res 2018; 118:377-382. [PMID: 30506514 DOI: 10.1007/s00436-018-6167-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/23/2018] [Indexed: 01/03/2023]
Abstract
It is known that premature elimination of non-parasitized RBCs (nRBCs) plays an important role in the pathogenesis of malarial anemia, in which suicidal death process (eryptosis) of nRBCs has been suggested to be involved. To check this possibility, we investigate eryptosis during infection of P. berghei ANKA in Wistar rats, a malaria experimental model that, similar to human malaria, the infection courses with low parasitemia and acute anemia. As expected, P. berghei ANKA infection was marked by low parasite burdens that reached a mean peak of 3% between days six and nine post-infection and solved spontaneously. A significant reduction of the hemoglobin levels (~ 30%) was also observed on days subsequent to the peak of parasitemia, persisting until day 16 post-infection. In eryptosis assays, it was observed a significant increase in the levels of PS-exposing nRBC, which coincided with the reduction of hemoglobin levels and was positively related to anemia. In addition to PS externalization, eryptosis of nRBC induced by P. berghei infection was characterized by cytoplasm calcium influx, but not caspases activity. These results confirm our previous studies evidencing a pro-eryptotic effect of malaria infection on nRBCs and show that a caspase-independent eryptotic process is implicated in anemia induced by P. berghei ANKA infection in Wistar rats.
Collapse
Affiliation(s)
- Paulo Renato Rivas Totino
- Laboratory for Malaria Research, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.
| | | | | | | | | |
Collapse
|