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  • Open Access

    ARTICLE

    MCU-i4, a mitochondrial Ca2+ uniporter modulator, induces breast cancer BT474 cell death by enhancing glycolysis, ATP production and reactive oxygen species (ROS) burst

    EDMUND CHEUNG SO1,2,#, LOUIS W. C. CHOW3,#, CHIN-MIN CHUANG4, CING YU CHEN5,6, CHENG-HSUN WU7, LIAN-RU SHIAO8, TING-TSZ OU9, KAR-LOK WONG10, YUK-MAN LEUNG8,*, YI-PING HUANG8,*

    Oncology Research, Vol.33, No.2, pp. 397-406, 2025, DOI:10.32604/or.2024.052743 - 16 January 2025

    Abstract Objectives: Mitochondrial Ca2+ uniporter (MCU) provides a Ca2+ influx pathway from the cytosol into the mitochondrial matrix and a moderate mitochondrial Ca2+ rise stimulates ATP production and cell growth. MCU is highly expressed in various cancer cells including breast cancer cells, thereby increasing the capacity of mitochondrial Ca2+ uptake, ATP production, and cancer cell proliferation. The objective of this study was to examine MCU inhibition as an anti-cancer mechanism. Methods: The effects of MCU-i4, a newly developed MCU inhibitor, on cell viability, apoptosis, cytosolic Ca2+, mitochondrial Ca2+ and potential, glycolytic rate, generation of ATP, and reactive oxygen species,… More >

  • Open Access

    REVIEW

    Gasotransmitters as Key Members of the Signaling Network Regulating Stomatal Response: Interaction with Other Molecules

    Yuriy E. Kolupaev1,2,*, Tetiana O. Yastreb1,*, Alexander P. Dmitriev3

    Phyton-International Journal of Experimental Botany, Vol.93, No.12, pp. 3151-3195, 2024, DOI:10.32604/phyton.2024.057922 - 31 December 2024

    Abstract Stomatal closure, which serves to limit water loss, represents one of the most rapid and critical reactions of plants, occurring not only in response to drought but also to a range of other stressors, including salinity, extreme temperatures, heavy metals, gaseous toxicants, and pathogen infection. ABA is considered to be the main regulator of stomatal movements in plants under abiotic stress. In the last two decades, however, the list of plant hormones and other physiologically active substances that affect stomatal status has expanded considerably. It is believed that stomata are regulated by a complex multicomponent… More >

  • Open Access

    ARTICLE

    Sciadopitysin exerts anticancer effects on HepG2 hepatocellular carcinoma cells by regulating reactive oxygen species-mediated signaling pathways

    YAN-NAN LI1,#, YUN-HONG XIU2,#, YAN-JUN TANG3, JING-LONG CAO1, WEN-SHUANG HOU1, AN-QI WANG1, TIAN-ZHU LI4,*, CHENG-HAO JIN1,3,5,*

    BIOCELL, Vol.48, No.7, pp. 1055-1069, 2024, DOI:10.32604/biocell.2024.050515 - 03 July 2024

    Abstract Objectives: Sciadopitysin (SP) is a flavonoid in Ginkgo biloba that exhibits various pharmacological activities. This study aimed to investigate its antitumor effects and the underlying molecular mechanism of SP in hepatocellular carcinoma (HCC) cells. Methods: Network pharmacology was used for target prediction analysis. Cell Counting Kit-8 (CCK-8) assay was used to test the cell viability. Flow cytometry was used to test the cell cycle distribution, apoptosis status, and reactive oxygen species (ROS) levels. Transwell and wound-healing assay was used to test the migration effect of SP on HepG2 cells. Western Blot assay was used to… More > Graphic Abstract

    Sciadopitysin exerts anticancer effects on HepG2 hepatocellular carcinoma cells by regulating reactive oxygen species-mediated signaling pathways

  • Open Access

    REVIEW

    Molecular and cellular mechanisms of neuroprotection by oligopeptides from snake venoms

    CARLOS ALBERTO-SILVA*, BRENDA RUFINO DA SILVA

    BIOCELL, Vol.48, No.6, pp. 897-904, 2024, DOI:10.32604/biocell.2024.050443 - 10 June 2024

    Abstract Venom snake-derived peptides have multiple biochemical, pharmacological, and toxicological profiles, allowing for the discovery of new medicinal products and therapeutic applications. This review specifically examines the fundamental elements of neuroprotection offered by different oligopeptides derived from snake venom. It also includes a brief evaluation of short peptides that are being considered as potential therapeutic agents. Proline-rich peptides and tryptophyllin family peptides isolated from the crude venom of Viperidae family snakes, specifically Bothrops atrox, Bothrops jararaca, and Bothrops moojeni, have been shown to have pro-survival properties, the ability to reduce oxidative stress, and the ability to promote cell viability More >

  • Open Access

    ARTICLE

    Valtrate exerts anticancer effects on gastric cancer AGS cells by regulating reactive oxygen species-mediated signaling pathways

    JINGLONG CAO1,#, SHUMEI LI2,#, TONG ZHANG1,#, JIAN LIU1, WENSHUANG HOU1, ANQI WANG1, CHANG WANG3,4,*, CHENGHAO JIN1,3,5,*

    BIOCELL, Vol.48, No.2, pp. 313-325, 2024, DOI:10.32604/biocell.2023.043474 - 23 February 2024

    Abstract Background: Valtrate (Val) was extracted from the Valeriana jatamansi Jones plant, had good antitumor activity. However, its precise molecular mechanism in cancer cells was still unclear. This study investigated the effect of Val on gastric cancer (GC) cells and its potential molecular mechanism. Methods: Cell viability was examined by CCK-8 assay. Cell cycle, apoptosis, and Reactive oxygen species (ROS) level were analyzed by flow cytometry. The migration effect of Val on AGS cells was analyzed by transwell and wound-healing assay. The expression levels of proteins were analyzed by western blot. Results: The cell viability assay results demonstrated… More > Graphic Abstract

    Valtrate exerts anticancer effects on gastric cancer AGS cells by regulating reactive oxygen species-mediated signaling pathways

  • Open Access

    ARTICLE

    Application of Plant Growth-Promoting Bacteria as an Eco-Friendly Strategy for Mitigating the Harmful Effects of Abiotic Stress on Plants

    Ahmed Hassan Abdou1,*, Omar Abdullah Alkhateeb2, Hossam Eldin Hamed Mansour3, Hesham S. Ghazzawy4, Muayad Saud Albadrani5, Nadi Awad Al-harbi6, Wasimah B. Al-Shammari7, Khaled Abdelaal8,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.12, pp. 3305-3321, 2023, DOI:10.32604/phyton.2023.044780 - 28 December 2023

    Abstract Plant growth-promoting bacteria (PGPB) play an important role in improving agricultural production under several abiotic stress factors. PGPB can be used to increase crop growth and development through hormonal balance and increase nutrient uptake. The positive effect of PGPB may be due to its pivotal role in morphophysiological and biochemical characteristics like leaf number, leaf area, and stem length. Furthermore, relative water content, chlorophyll content, carotenoids, antioxidant enzymes, and plant hormones were improved with PGPB treatment. Crop yield and yield components were also increased with PGPB treatment in numerous crops. The anatomical structure of plant… More >

  • Open Access

    ARTICLE

    Identification of microbial metabolites that accelerate the ubiquitin-dependent degradation of c-Myc

    ZIYU LIU1,2, AKIKO OKANO3,4, EMIKO SANADA1,3,4, YUSHI FUTAMURA3,4, TOSHIHIKO NOGAWA3,5, KOSUKE ISHIKAWA6, KENTARO SEMBA7,8, JIANG LI9, XIAOMENG LI10, HIROYUKI OSADA3,4,11,*, NOBUMOTO WATANABE1,2,4,*

    Oncology Research, Vol.31, No.5, pp. 655-666, 2023, DOI:10.32604/or.2023.030248 - 21 July 2023

    Abstract

    Myc belongs to a family of proto-oncogenes that encode transcription factors. The overexpression of c-Myc causes many types of cancers. Recently, we established a system for screening c-Myc inhibitors and identified antimycin A by screening the RIKEN NPDepo chemical library. The specific mechanism of promoting tumor cell metastasis by high c-Myc expression remains to be explained. In this study, we screened approximately 5,600 microbial extracts using this system and identified a broth prepared from Streptomyces sp. RK19-A0402 strongly inhibits c-Myc transcriptional activity. After purification of the hit broth, we identified compounds closely related to the aglycone

    More > Graphic Abstract

    Identification of microbial metabolites that accelerate the ubiquitin-dependent degradation of c-Myc

  • Open Access

    REVIEW

    A Review on Selenium Function under Oxidative Stress in Plants Focusing on ROS Production and Detoxification

    Armin Saed-Moucheshi1,*, Elham Rezaei Mirghaed2

    Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 1921-1941, 2023, DOI:10.32604/phyton.2023.027810 - 29 May 2023

    Abstract

    One of the main reasons of the annual reduction in plant production all around the world is the occurrence of abiotic stresses as a result of an unpredicted changes in environmental conditions. Abiotic stresses basically trigger numerous pathways related to oxygen free radicals’ generation resulting in a higher rate of reactive oxygen species (ROS) production. Accordingly, higher rate of oxygen free radicals than its steady state causes to oxidize various types of molecules and compartments within the plants’ cells and tissues. Oxidative stress is the result of high amount free radicals of oxygen interfering with different

    More >

  • Open Access

    ARTICLE

    Calcitriol induces post-thawed bovine sperm capacitation

    ANA CECILIA LIAUDAT, FRANCISCA EBEL, BIANCA ANA OPIZZO, MARINA AURORA GONZALEZ, DAMIÁN BLOIS, PABLO BOSCH#, NANCY RODRIGUEZ#,*

    BIOCELL, Vol.47, No.5, pp. 1135-1143, 2023, DOI:10.32604/biocell.2023.027628 - 10 April 2023

    Abstract Background: Capacitation is a set of physiological changes sperms undergo to acquire fertilizing capacity. In vivo, this process is directly associated with high calcium levels in sperm cytoplasm. Calcitriol, the vitamin D hypercalcemic metabolite, is related to human sperm motility, capacitation, and acrosome reaction. This work aimed to study the effect of calcitriol on bull sperm quality parameters and capacitation. Methods: One million freeze-thawed spermatozoa were obtained from different bulls and treated with 20 nM of calcitriol for 30 min. Untreated cells (negative control) and treated ones with calcitriol or heparin (100 µg/mL, positive capacitation control) were… More >

  • Open Access

    ARTICLE

    Salicylic Acid Application Mitigates Oxidative Damage and Improves the Growth Performance of Barley under Drought Stress

    Shah Mohammad Naimul Islam1, Niloy Paul1, Md. Mezanur Rahman2, Md. Ashraful Haque1, Md. Motiar Rohman3, Mohammad Golam Mostofa4,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1513-1537, 2023, DOI:10.32604/phyton.2023.025175 - 09 March 2023

    Abstract Drought is a severe environmental constraint, causing a significant reduction in crop productivity across the world. Salicylic acid (SA) is an important plant growth regulator that helps plants cope with the adverse effects induced by various abiotic stresses. The current study investigated the potential effects of SA on drought tolerance efficacy in two barley (Hordeum vulgare) genotypes, namely BARI barley 5 and BARI barley 7. Ten-day-old barley seedlings were exposed to drought stress by maintaining 7.5% soil moisture content in the absence or presence of 0.5, 1.0 and 1.5 mM SA. Drought exposure led to severe… More >

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