1
|
Hilal B, Eldem A, Oz T, Pehlivan M, Pirim I. Boric Acid Affects Cell Proliferation, Apoptosis, and Oxidative Stress in ALL Cells. Biol Trace Elem Res 2024; 202:3614-3622. [PMID: 38015327 DOI: 10.1007/s12011-023-03958-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is a type of acute lymphoblastic leukemia from early T-cell progenitors. Interest grows in creating less toxic agents and therapies for chemo-resistant T-ALL cancer. Recently, elemental boron has special properties useful in the creation of new drugs. Studies have revealed the cytotoxic properties of boric acid (BA) on cancer, but not fully understood. We aimed to investigate the effect of BA on cell proliferation, apoptosis, and oxidative stress in the Jurkat cells. The effects of BA on cell viability were determined by 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay for 24-48-72 h. The impact of BA on apoptosis was analyzed by acridine orange/ethidium bromide. Expression of apoptosis regulatory genes (Bcl-2, Bax, Caspase-3-8-9) and apoptotic miRNA (miR-21) was used by real-time quantitative polymerase chain reaction (RT-qPCR). The total oxidant status (TOS), total antioxidant status (TAS), and the oxidative stress index (OSI) value were calculated for oxidative stress. We determined the cytotoxic activity of BA on Jurkat cells by using XTT and defined the IC50 concentration (802.7 μg/mL) of BA. The findings clearly show that BA inhibited Jurkat cell proliferation dose-dependently. BA induced apoptosis through downregulated anti-apoptotic genes, and upregulated pro-apoptotic genes. Additionally, we found that BA significantly reduced the expression of miR-21 (p<0.001). Our findings demonstrated that different doses of BA increased TAS levels while decreasing TOS levels in Jurkat cells. Our study suggests that BA might be potential anti-cancer agent candidate in ALL via inhibition of cell proliferation, induced apoptosis, and reducing the amounts of anti-oxidants in cells.
Collapse
Affiliation(s)
- Büşra Hilal
- Faculty of Medicine, Izmir Katip Celebi University, Izmir, Turkey
| | - Aslı Eldem
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
| | - Tuba Oz
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
| | - Melek Pehlivan
- Vocational School of Health Services, Izmir Katip Celebi University, Izmir, Turkey.
| | - Ibrahim Pirim
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
| |
Collapse
|
2
|
Semerci Sevimli T, Ghorbani A, Gakhiyeva F, Ebrahimi A, Ghorbanpoor H, Altuğ B, Ergen FB, Ahmadova Z, Soykan MN, Tufekcioglu E. Evaluation of Boric Acid Treatment on microRNA-127-5p and Metastasis Genes Orchestration of Breast Cancer Stem Cells. Biol Trace Elem Res 2024:10.1007/s12011-024-04274-6. [PMID: 38963646 DOI: 10.1007/s12011-024-04274-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 06/12/2024] [Indexed: 07/05/2024]
Abstract
Coregulation of microRNAs (miRNAs) and cancer stem cells (CSCs) is very important in carcinogenesis. miR-127-5p is known to be downregulated in breast cancer. In this study, we aimed to investigate how boric acid (BA), known for its previously unstudied anti-cancer properties, would affect the expression of miR127-5p and genes responsible for breast cancer stem cells (BC-SCs) metastasis. BC-SCs were isolated from human breast cancer cells (MCF-7) by immunomagnetic cell separation and characterized with flow cytometry and sphere formation. The viability of BC-SCs and the determination of its IC50 value in response to boric acid (BA) were assessed via the MTT assay. Boric acid exhibited dose- and time-dependent inhibition of cell viability in cells. The IC50 doses of boric acid in MCF-7 cells and BC-SCs were 45.69 mM and 41.27 mM, respectively. The impact of BA on the expression of metastatic genes and miR127-5p was elucidated through RT-qPCR analysis. While the expression of the COL1A1 (p < 0.05) and VIM (p < 0.01) was downregulated, the expression of the miR-127-5p, ZEB1 (p < 0.01), CDH1 (p < 0.05), ITGB1 (p < 0.05), ITGA5 (p < 0.05), LAMA5 (p < 0.01), and SNAIL (p < 0.05), was up-regulated in dose-treated BC-SCs (p < 0.001) to the RT-qPCR results. Our findings suggest that boric acid could induce miR-127-5p expression. However, it cannot be said that it improves the metastasis properties of breast cancer stem cells.
Collapse
Affiliation(s)
- Tuğba Semerci Sevimli
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey.
| | - Aynaz Ghorbani
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Fidan Gakhiyeva
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Aliakbar Ebrahimi
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Hamed Ghorbanpoor
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
- Department of Biomedical Engineering, Faculty of Engineering and Architecture, Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Burcugül Altuğ
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Fulya Buge Ergen
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Zarifa Ahmadova
- Department of Surgery, Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
| | - Merve Nur Soykan
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Emre Tufekcioglu
- Department of Industrial Design, Faculty of Architecture and Design, Eskisehir Technical University, Eskisehir, 26555, Turkey
| |
Collapse
|
3
|
Hacioglu C, Oral D. Borax affects cellular viability by inducing ER stress in hepatocellular carcinoma cells by targeting SLC12A5. J Cell Mol Med 2024; 28:e18380. [PMID: 38780503 PMCID: PMC11114215 DOI: 10.1111/jcmm.18380] [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: 04/06/2024] [Revised: 04/22/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Hepatocellular carcinoma (HCC) presents a persistent challenge to conventional therapeutic approaches. SLC12A5 is implicated in an oncogenic capacity and facilitates the progression of cancer. The objective of this investigation is to scrutinize the inhibitory effects of borax on endoplasmic reticulum (ER)-stress and apoptosis mediated by SLC12A5 in HepG2 cells. Initially, we evaluated the cytotoxic impact of borax on both HL-7702 and HepG2 cell lines. Subsequently, the effects of borax on cellular morphology and the cell cycle of these lines were examined. Following this, we explored the impact of borax treatment on the mRNA and protein expression levels of SLC12A5, C/EBP homologous protein (CHOP), glucose-regulated protein-78 (GRP78), activating transcription factor-6 (ATF6), caspase-3 (CASP3), and cytochrome c (CYC) in these cellular populations. The determined IC50 value of borax for HL-7702 cells was 40.8 mM, whereas for HepG2 cells, this value was 22.6 mM. The concentrations of IC50 (22.6 mM) and IC75 (45.7 mM) of borax in HepG2 cells did not manifest morphological aberrations in HL-7702 cells. Conversely, these concentrations in HepG2 cells induced observable morphological and nuclear abnormalities, resulting in cell cycle arrest in the G1/G0 phase. Additionally, the levels of SLC12A5, ATF6, CHOP, GRP78, CASP3, and CYC were elevated in HepG2 cells in comparison to HL-7702 cells. Moreover, SLC12A5 levels decreased following borax treatment in HepG2 cells, whereas ATF6, CHOP, GRP78, CASP3, and CYC levels exhibited a significant increase. In conclusion, our data highlight the potential therapeutic effects of borax through the regulation of ER stress in HCC by targeting SLC12A5.
Collapse
Affiliation(s)
- Ceyhan Hacioglu
- Faculty of Pharmacy, Department of BiochemistryDüzce UniversityDüzceTurkey
- Faculty of Medicine, Department of Medical BiochemistryDüzce UniversityDüzceTurkey
| | - Didem Oral
- Faculty of Pharmacy, Department of Pharmaceutical ToxicologyDüzce UniversityDüzceTurkey
| |
Collapse
|
4
|
Yıldırım O, Seçme M, Dodurga Y, Mete GA, Fenkci SM. In Vitro Effects of Boric Acid on Cell Cycle, Apoptosis, and miRNAs in Medullary Thyroid Cancer Cells. Biol Trace Elem Res 2024:10.1007/s12011-024-04188-3. [PMID: 38689139 DOI: 10.1007/s12011-024-04188-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Medullary thyroid cancer (MTC) is a highly aggressive and chemotherapy-resistant cancer originating from the thyroid's parafollicular C cells. Due to its resistance to conventional treatments, alternative therapies such as boric acid have been explored. Boric acid, a boron-based compound, has shown anticarcinogenic effects, positioning it as a potential treatment option for MTC. TT medullary thyroid carcinoma cell line (TT cells) and human thyroid fibroblast (HThF cells) were utilized for the cell culture experiments. Cell viability was assessed using the 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay. Total RNA was extracted using Trizol reagent for gene expression and microRNA (miRNA) analysis via reverse transcription-polymerase chain reaction (RT-PCR). The extent of apoptosis induced by boric acid was determined using the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Colony formation assays were conducted to evaluate the impact of boric acid on the colony-forming ability of MTC cells. At 48 h, 50% inhibitory concentration (IC50) of boric acid was found to be 35 μM. Treatment with boric acid resulted in significant modulation of apoptosis-related genes and miRNAs, including increased expression of phorbol-12-myristate-13-acetate-induced protein 1(NOXA), apoptotic protease activating factor 1 (APAF-1), Bcl-2-associated X protein (Bax), caspase-3, and caspase-9. In contrast, the expression of B cell lymphoma 2 (Bcl2), B cell lymphoma- extra-large (Bcl-xl), and microRNA-21 (miR-21), which are linked to the aggressiveness of MTC, was significantly reduced. The TUNEL assay indicated a 14% apoptosis rate, and there was a 67.9% reduction in colony formation, as shown by the colony formation assay. Our study suggests that boric acid may have anticancer activity in MTC by modulating apoptotic pathways. These findings suggest that boric acid could be a potential therapeutic agent for MTC and possibly for other malignancies with similar pathogenic mechanisms.
Collapse
Affiliation(s)
- Onurcan Yıldırım
- Department of Internal Medicine, Ege University School of Medicine, Izmir, 35100, Turkey.
| | - Mücahit Seçme
- Department of Medical Biology, Ordu University School of Medicine, Ordu, Turkey
| | - Yavuz Dodurga
- Department of Medical Biology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Gülçin Abban Mete
- Department of Histology and Embriology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Semin Melahat Fenkci
- Department of Endocrinology and Metabolism, Pamukkale University School of Medicine, Denizli, Turkey
| |
Collapse
|
5
|
Semerci Sevimli T, Ghorbani A, Demir Cevizlidere B, Altuğ B, Sevimli M. Boric Acid Affects the Expression of DNA Double-Strand Break Repair Factors in A549 Cells and A549 Cancer Stem Cells: An In Vitro Study. Biol Trace Elem Res 2024:10.1007/s12011-024-04082-y. [PMID: 38367174 DOI: 10.1007/s12011-024-04082-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 01/27/2024] [Indexed: 02/19/2024]
Abstract
DNA double-strand break (DSB) repair genes interact with tumor stemness- and resistance-associated processes in cancer stem cells (CSCs). Therefore, targeting DNA DSB genes in cancer treatment is important for the CSC phenotype. Although the anti-cancer effect of boric acid (BA) has been studied, its effect on DNA DSB is unclear. Moreover, no studies investigate BA's effects on DNA DSB of lung cancer stem cells (LC-SCs). To fill the gap, we aimed to assess the effects of BA on A549 cancer stem cells. CSCs were isolated from human non-small cell lung cancer cells (A549) and characterized by flow cytometry. Different concentrations of BA (at doses ranging from 1 to 100 mM) were applied to cancer stem cells. Cytotoxic activities were determined using the cell viability assay (MTT assay) at 24 and 48 h. Expression levels of DNA DSB genes that BRCA1, BRCA2, RAD51, KU70/80, ATM, and XRCC4 were evaluated by RT-qPCR. Additionally, immunofluorescence staining analysis was exploited for caspase-3 and E-cadherin. ATM expression increased significantly (p < 0.001). No significant change was observed in the expression of other genes. Moreover, BA up-regulated caspase-3 and E-cadherin expression. Consequently, we can say that BA affects DNA DSB and the apoptotic abilities of LC-SCs.
Collapse
Affiliation(s)
- Tuğba Semerci Sevimli
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskişehir Osmangazi University, Eskişehir, 26040, Turkey.
| | - Aynaz Ghorbani
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskişehir Osmangazi University, Eskişehir, 26040, Turkey
| | - Bahar Demir Cevizlidere
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskişehir Osmangazi University, Eskişehir, 26040, Turkey
| | - Burcugül Altuğ
- Cellular Therapy and Stem Cell Production, Application, and Research Center (ESTEM), Eskişehir Osmangazi University, Eskişehir, 26040, Turkey
| | - Murat Sevimli
- Department of Histology and Embryology, Faculty of Medicine, Eskisehir Osmangazi University, 26040, Eskişehir, Turkey
| |
Collapse
|
6
|
Turkez H, Tozlu OO, Arslan ME, Baba C, Saracoglu MM, Yıldız E, Tatar A, Mardinoglu A. Boric Acid and Borax Protect Human Lymphocytes from Oxidative Stress and Genotoxicity Induced by 3-Monochloropropane-1,2-diol. Biol Trace Elem Res 2024:10.1007/s12011-024-04060-4. [PMID: 38216793 DOI: 10.1007/s12011-024-04060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/02/2024] [Indexed: 01/14/2024]
Abstract
3-chloro-1,2-propanediol (3-MCPD) is a member of the group of pollutants known as chloropropanols and is considered a genotoxic carcinogen. Due to the occurrence of 3-MCPD, which cannot be avoided in multiplexed food processes, it is necessary to explore novel agents to reduce or prevent the toxicity of 3-MCPD. Many recent studies on boron compounds reveal their superior biological roles such as antioxidant, anticancer, and antigenotoxic properties. In the current investigation, we have evaluated in vitro cytotoxic, oxidative, and genotoxic damage potential of 3-MCPD on human whole blood cultures and the alleviating effect of boric acid (BA) and borax (BX) for 72 h. In our in vitro experiments, we have treated blood cells with BA and BX (2.5, 5, and 10 mg/L) and 3-MCPD (at IC50 of 11.12 mg/l) for 72 h to determine the cytotoxic damage potential by using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and lactate dehydrogenase (LDH) release assays. Oxidative damage was assessed using total antioxidant capacity (TAC) and malondialdehyde (MDA) levels. Genotoxicity evaluations were performed using chromosome aberrations (CAs) and 8-hydroxy deoxyguanosine (8-OHdG) assays. The result of our experiments showed that the 3-MCPD compound induced cytotoxicity, oxidative stress, and genotoxicity in a clear concentration-dependent manner. BA and BX reduced cytotoxicity, oxidative stress, and genotoxicity induced by 3-MCPD. In conclusion, BA and BX are safe and non-genotoxic under the in vitro conditions and can alleviate cytotoxic, oxidative, and genetic damage induced by 3-MCPD in the human blood cells. Our findings suggest that dietary boron supplements may offer a novel strategy for mitigating hematotoxicity induced by xenobiotics, including 3-MCPD.
Collapse
Affiliation(s)
- Hasan Turkez
- Department of Medical Biology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Ozlem Ozdemir Tozlu
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey.
| | - Mehmet Enes Arslan
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Cem Baba
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Muhammed Melik Saracoglu
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Edanur Yıldız
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Abdulgani Tatar
- Department of Medical Genetics, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Adil Mardinoglu
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| |
Collapse
|
7
|
Çakır Gündoğdu A, Arı NS, Höbel A, Şenol G, Eldiven Ö, Kar F. Boric Acid Exhibits Anticancer Properties in Human Endometrial Cancer Ishikawa Cells. Cureus 2023; 15:e44277. [PMID: 37772231 PMCID: PMC10531031 DOI: 10.7759/cureus.44277] [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] [Accepted: 08/27/2023] [Indexed: 09/30/2023] Open
Abstract
Objective This study aims to explore the potential anti-cancer properties of boric acid (BA) in human endometrial cancer Ishikawa cells by assessing its influence on cell viability, apoptosis, oxidative stress, and inflammatory responses. Methods The impact of BA at concentrations ranging from 2.5 to 100 mM on cell viability was assessed in Ishikawa cells and normal fibroblast L929 cells (used as the control) through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Spectrophotometric measurements were performed to determine the total oxidant status (TOS) and total antioxidant status (TAS) in BA-treated cells, and the oxidative stress index (OSI) was calculated. The enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of cytochrome c and caspase 3, both of which are constituents of the extrinsic apoptotic pathway. Furthermore, changes in the concentrations of pro-inflammatory cytokines tumor necrosis factor-alpha (TNF-α) and interleukin-1beta (IL-1β) in the cells were analyzed using ELISA and immunofluorescence staining. Results The exposure of Ishikawa cells to BA for 24 hours led to a dose-dependent decline in cell viability, with an IC50 value of 40 mM. BA dose-dependently increased cytochrome c and caspase 3 levels in cancer cells. In Ishikawa cells, BA treatment led to a significant elevation in OSI. Moreover, the concentrations of TNF-α and IL-1β exhibited a dose-dependent decrease in BA-treated cells. On the other hand, in L929 cells, BA decreased OSI in a dose-dependent manner but did not change TNF-α and IL-1β levels. Concentrations up to 80 mM had no effect on cell viability and apoptosis, but BA at 80 mM concentration decreased viability and increased cytochrome c and caspase 3 levels in L929 cells. Conclusion BA inhibited cell viability, triggered apoptosis, induced oxidative stress, and suppressed inflammatory responses in endometrial cancer cells. Notably, at its IC50 concentration, BA had no cytotoxic effect on normal fibroblasts. Given its favorable properties, BA may provide a valuable therapeutic option to impede the development and progression of endometrial cancer.
Collapse
Affiliation(s)
| | - Neziha Senem Arı
- Histology and Embryology, Kütahya Health Sciences University, Kütahya, TUR
| | - Asiye Höbel
- Histology and Embryology, Kütahya Health Sciences University, Kütahya, TUR
| | - Gülnihal Şenol
- Histology and Embryology, Kütahya Health Sciences University, Kütahya, TUR
| | - Ömer Eldiven
- Histology and Embryology, Kütahya Health Sciences University, Kütahya, TUR
| | - Fatih Kar
- Medical Biochemistry, Kutahya University of Health Sciences, School of Medicine, Kütahya, TUR
| |
Collapse
|
8
|
Paties Montagner G, Dominici S, Piaggi S, Pompella A, Corti A. Redox Mechanisms Underlying the Cytostatic Effects of Boric Acid on Cancer Cells-An Issue Still Open. Antioxidants (Basel) 2023; 12:1302. [PMID: 37372032 DOI: 10.3390/antiox12061302] [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: 05/05/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Boric acid (BA) is the dominant form of boron in plasma, playing a role in different physiological mechanisms such as cell replication. Toxic effects have been reported, both for high doses of boron and its deficiency. Contrasting results were, however, reported about the cytotoxicity of pharmacological BA concentrations on cancer cells. The aim of this review is to briefly summarize the main findings in the field ranging from the proposed mechanisms of BA uptake and actions to its effects on cancer cells.
Collapse
Affiliation(s)
- Giulia Paties Montagner
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Silvia Dominici
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Simona Piaggi
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Alfonso Pompella
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Alessandro Corti
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| |
Collapse
|
9
|
Cheng G, Karoui H, Hardy M, Kalyanaraman B. Polyphenolic Boronates Inhibit Tumor Cell Proliferation: Potential Mitigators of Oxidants in the Tumor Microenvironment. Cancers (Basel) 2023; 15:cancers15041089. [PMID: 36831432 PMCID: PMC9953882 DOI: 10.3390/cancers15041089] [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: 12/21/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
Boronate-based compounds have been used in brain cancer therapy, either as prodrugs or in combination with other modalities. Boronates containing pro-luminescent and fluorescent probes have been used in mouse models of cancer. In this study, we synthesized and developed polyphenolic boronates and mitochondria-targeted polyphenolic phytochemicals (e.g., magnolol [MGN] and honokiol [HNK]) and tested their antiproliferative effects in brain cancer cells. Results show that mitochondria-targeted (Mito) polyphenolic boronates (Mito-MGN-B and Mito-HNK-B) were slightly more potent than Mito-MGN and Mito-HNK in inhibiting proliferation of the U87MG cell line. Similar proliferation results also were observed in other cancer cell lines, such as MiaPaCa-2, A549 and UACC-62. Independent in vitro experiments indicated that reactive nitrogen species (e.g., peroxynitrite) and reactive oxygen species (e.g., hydrogen peroxide) stoichiometrically react with polyphenolic boronates and Mito-polphenolic boronates, forming polyphenols and Mito-polyphenols as major products. Previous reports suggest that both Mito-MGN and Mito-HNK activate cytotoxic T cells and inhibit immunosuppressive immune cells. We propose that Mito-polyphenolic boronate-based prodrugs may be used to inhibit tumor proliferation and mitigate oxidant formation in the tumor microenvironment, thereby generating Mito-polyphenols in situ, as well as showing activity in the tumor microenvironment.
Collapse
Affiliation(s)
- Gang Cheng
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Hakim Karoui
- Aix Marseille Univ, CNRS, ICR, 13009 Marseille, France
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, 13009 Marseille, France
| | - Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Correspondence:
| |
Collapse
|