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Faundes-Gandolfo N, Jara-Gutiérrez C, Párraga M, Montenegro I, Vera W, Escobar M, Madrid A, Valenzuela-Valderrama M, Villena J. Kalanchoe pinnata (Lam.) Pers. Leaf ethanolic extract exerts selective anticancer activity through ROS-induced apoptotic cell death in human cancer cell lines. BMC Complement Med Ther 2024; 24:269. [PMID: 39010075 PMCID: PMC11247786 DOI: 10.1186/s12906-024-04570-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 06/26/2024] [Indexed: 07/17/2024] Open
Abstract
BACKGROUND The leaves of Kalanchoe pinnata (Lam.) Pers. (K. pinnata), a succulent plant native to tropical regions, are used as a medicinal alternative against cancer in several countries worldwide; however, its therapeutic potential to fight cancer has been little addressed. In this study, we analyzed the phytochemical content, antioxidant capacity, and selectivity of K. pinnata leaf ethanolic extract against different human cancer cell lines in vitro. METHODOLOGY This study subjected the ethanolic extract to enzymatic assays to quantify the phytochemical content (phenolics, flavonoids, and anthraquinones) and its radical scavenging and iron-reducing capacities. Also, the phytoconstituents and major phenolic compounds present in the extract's subfractions were identified by GC-MS, HPLC, and NMR. Human cancer (MCF-7, PC-3, HT-29) and normal colon (CoN) cell lines were treated with different concentrations of K. pinnata leaf ethanolic extract, and the changes in cell proliferation (sulforhodamine B assay), caspases activity (FITC-VAD-FMK reporter), mitochondrial membrane potential (MMP, rhodamine 123 assay), chromatin condensation/fragmentation (Hoechst 33342 stain), and ROS generation (DCFH2 probe assay) were assessed. RESULTS The results showed that the K. pinnata leaf ethanolic extract is rich in phytoconstituents with therapeutic potential, including phenols (quercetin and kaempferol), flavonoids, fatty acid esters (34.6% of the total composition), 1- triacontanol and sterols (ergosterol and stigmasterol, 15.4% of the total composition); however, it presents a poor content of antioxidant molecules (IC50 = 27.6 mg/mL for H2O2 scavenging activity vs. 2.86 mg/mL in the case of Trolox). Notably, the extract inhibited cell proliferation and reduced MMP in all human cell lines tested but showed selectivity for HT-29 colon cancer cells compared to CoN normal cells (SI = 8.4). Furthermore, ROS generation, caspase activity, and chromatin condensation/fragmentation were augmented significantly in cancer-derived cell lines, indicating a selective cytotoxic effect. CONCLUSION These findings reveal that the K. pinnata leaf ethanolic extract contains several bioactive molecules with therapeutic potential, capable of displaying selective cytotoxicity in different human cancer cell lines.
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Affiliation(s)
- Nicolas Faundes-Gandolfo
- Centro Interdisciplinario de Investigación Biomédica e Ingeniería para la Salud (MEDING), Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
| | - Carlos Jara-Gutiérrez
- Centro Interdisciplinario de Investigación Biomédica e Ingeniería para la Salud (MEDING), Escuela de Kinesiología, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
| | - Mario Párraga
- Centro Interdisciplinario de Investigación Biomédica e Ingeniería para la Salud (MEDING), Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
| | - Iván Montenegro
- Centro Interdisciplinario de Investigación Biomédica e Ingeniería para la Salud (MEDING), Escuela de Obstetricia, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile
- Laboratorio de Química de Metabolitos Bioactivos, Escuela de Química y Farmacia, Facultad de Farmacia, Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Escuela de Química y Farmacia, Universidad de Valparaíso, Valparaíso, Chile
| | - Waleska Vera
- Laboratorio de Química de Metabolitos Bioactivos, Escuela de Química y Farmacia, Facultad de Farmacia, Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Escuela de Química y Farmacia, Universidad de Valparaíso, Valparaíso, Chile
| | - Marcela Escobar
- Laboratorio de Química de Metabolitos Bioactivos, Escuela de Química y Farmacia, Facultad de Farmacia, Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Escuela de Química y Farmacia, Universidad de Valparaíso, Valparaíso, Chile
| | - Alejandro Madrid
- Laboratorio de Productos Naturales y Síntesis Orgánica, Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile
| | - Manuel Valenzuela-Valderrama
- Laboratorio de Microbiología Celular, Facultad de Medicina y Ciencias de la Salud, Universidad Central de Chile, Santiago, Chile.
| | - Joan Villena
- Centro Interdisciplinario de Investigación Biomédica e Ingeniería para la Salud (MEDING), Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile.
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Mishra AK, S L N, Jain A, Jagtap CY, Dane G, Paroha S, Sahoo PK. Effectiveness of Semecarpus anacardium Linn. fruits in cancer and inflammatory diseases: A mini review. Fitoterapia 2024; 175:105978. [PMID: 38685508 DOI: 10.1016/j.fitote.2024.105978] [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: 11/17/2023] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Semecarpus anacardium Linn. (SCA) fruits are found in India's sub-Himalayan, tropical, and central regions and have been utilized for centuries in traditional Indian medicine to treat various ailments. In recent times, a growing body of research has emerged indicating that the extracts and active components found in SCA fruits possess qualities that can potentially inhibit the development of cancer and inflammatory markers. PURPOSE This study aims to provide a comprehensive review of the existing literature on the pharmacological mechanisms underlying the effects of extracts and phytochemicals of SCA fruits in cellular, animal models, and clinical trials of cancer and inflammatory diseases. METHODS A comprehensive literature search was conducted utilizing several databases, including PubMed, Scopus, Google Scholar, preprint platforms, and the Cochrane Database of Systematic Reviews using the keywords "Semecarpus anacardium", "Anti-inflammatory," and "cancer". The collection of articles started with establishing the database and continued until April 2024. RESULTS Out of 1130 retrieved database records, 316 pertained to systematic reviews. The remaining 814 records focused on examining the anticancer and anti-inflammatory properties of SCA fruits. In the course of these investigations, the four primary cancer types linked to SCA fruits are identified as lung cancer, hepatocellular carcinoma, breast cancer, and blood cancer. CONCLUSION The findings will provide more support for investigating SCA fruits in cancer treatment and will furnish thorough reference data and recommendations for future studies on this botanical medication.
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Affiliation(s)
- Ashwini Kumar Mishra
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University, New Delhi, 110017, India
| | - Neha S L
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University, New Delhi, 110017, India
| | - Ankit Jain
- Department of Pharmacy, Birla Institute of Technology and Science Pilani (BITS-PILANI), Pilani Campus, Rajasthan, 333001, India
| | | | - Ganesh Dane
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Shweta Paroha
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University, New Delhi, 110017, India
| | - Pravat Kumar Sahoo
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University, New Delhi, 110017, India.
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Natural Inhibitors of P-glycoprotein in Acute Myeloid Leukemia. Int J Mol Sci 2023; 24:ijms24044140. [PMID: 36835550 PMCID: PMC9962603 DOI: 10.3390/ijms24044140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Acute myeloid leukemia (AML) remains an insidious neoplasm due to the percentage of patients who develop resistance to both classic chemotherapy and emerging drugs. Multidrug resistance (MDR) is a complex process determined by multiple mechanisms, and it is often caused by the overexpression of efflux pumps, the most important of which is P-glycoprotein (P-gp). This mini-review aims to examine the advantages of using natural substances as P-gp inhibitors, focusing on four molecules: phytol, curcumin, lupeol, and heptacosane, and their mechanism of action in AML.
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Understanding the Antilymphoma Activity of Annona macroprophyllata Donn and Its Acyclic Terpenoids: In Vivo, In Vitro, and In Silico Studies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207123. [PMID: 36296714 PMCID: PMC9607537 DOI: 10.3390/molecules27207123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 11/24/2022]
Abstract
Annona macroprophyllata Donn (A. macroprophyllata) is used in traditional Mexican medicine for the treatment of cancer, diabetes, inflammation, and pain. In this work, we evaluated the antitumor activity of three acyclic terpenoids obtained from A. macroprophyllata to assess their potential as antilymphoma agents. We identified the terpenoids farnesyl acetate (FA), phytol (PT) and geranylgeraniol (Gg) using gas chromatography-mass spectroscopy (GC-MS) and spectroscopic (1H, and 13C NMR) methods applied to petroleum ether extract of leaves from A. macroprophyllata (PEAm). We investigated antitumor potential in Balb/c mice inoculated with U-937 cells by assessing brine shrimp lethality (BSL), and cytotoxic activity in these cells. In addition, to assess the potential toxicity of PEAm, FA, PT and Gg in humans, we tested their acute oral toxicity in mice. Our results showed that the three terpenoids exhibited considerable antilymphoma and cytotoxic activity. In terms of lethality, we determined a median lethal dose (LD50) for thirteen isolated products of PEAm. Gg, PT and AF all exhibited a higher lethality with values of 1.41 ± 0.42, 3.03 ± 0.33 and 5.82 ± 0.58 µg mL-1, respectively. To assess cytotoxic activity against U-937 cells, we calculated the mean cytotoxic concentration (CC50) and found that FA and PT were closer in respect to the control drug methotrexate (MTX, 0.243 ± 0.007 µM). In terms of antilymphoma activity, we found that FA, PT and Gg considerably inhibited lymph node growth, with median effective doses (ED50) of 5.89 ± 0.39, 6.71 ± 0.31 and 7.22 ± 0.51 mg kg-1 in females and 5.09 ± 0.66, 5.83 ± 0.50 and 6.98 ± 0.57mg kg -1 in males, respectively. Regarding acute oral toxicity, we classified all three terpenoids as category IV, indicating a high safety margin for human administration. Finally, in a molecular docking study of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase, we found binding of terpenoids to some amino acids of the catalytic site, suggesting an effect upon activity with a resulting decrease in the synthesis of intermediates involved in the prenylation of proteins involved in cancer progression. Our findings suggest that the acyclic terpenoids FA, PT, and Gg may serve as scaffolds for the development of new treatments for non-Hodgkin's lymphoma.
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The Multiple Roles of Glucose-6-Phosphate Dehydrogenase in Tumorigenesis and Cancer Chemoresistance. Life (Basel) 2022; 12:life12020271. [PMID: 35207558 PMCID: PMC8875868 DOI: 10.3390/life12020271] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 01/04/2023] Open
Abstract
The pentose phosphate pathway (PPP) is a branch from glycolysis that begins from glucose-6-phosphate (G6P) and ends up with fructose-6-phosphate (F6P) and glyceraldehyde-3-phosphate (GADP). Its primary physiological significance is to provide nicotinamide adenine dinucleotide phosphate (NADPH) and nucleotides for vital activities such as reactive oxygen species (ROS) defense and DNA synthesis. Glucose-6-phosphate dehydrogenase (G6PD) is a housekeeping protein with 514 amino acids that is also the rate-limiting enzyme of PPP, catalyzing G6P into 6-phosphogluconolactone (6PGL) and producing the first NADPH of this pathway. Increasing evidence indicates that G6PD is upregulated in diverse cancers, and this dysfunction influences DNA synthesis, DNA repair, cell cycle regulation and redox homeostasis, which provides advantageous conditions for cancer cell growth, epithelial-mesenchymal transition (EMT), invasion, metastasis and chemoresistance. Thus, targeting G6PD by inhibitors has been shown as a promising strategy in treating cancer and reversing chemotherapeutic resistance. In this review, we will summarize the existing knowledge concerning G6PD and discuss its role, regulation and inhibitors in cancer development and chemotherapy resistance.
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