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  • Open Access

    ARTICLE

    A Th2-score in the tumor microenvironment as a predictive biomarker of response to Bacillus Calmette Guérin in patients with non-muscle invasive bladder carcinoma: A retrospective study

    GUSTAVO MARTÍN VILLOLDO1, MARÍA TERESA POMBO2, MARIANA ARIS3, JOAQUÍN CHEMI1, PABLO MANDÓ3, SUPRIYA NAGARAJU4, JUAN CAMEAN1, ADRIÁN BURIONI1, DEBORAH EGEA1, MORA AMAT5, JOSÉ LEÓN MELLADO3, JOSÉ MORDOH3, ALBERTO VILLARONGA1, MARÍA MARCELA BARRIO3,*

    Oncology Research, Vol.31, No.2, pp. 207-220, 2023, DOI:10.32604/or.2023.028163 - 10 April 2023

    Abstract Intravesical Bacillus Calmette Guerin (BCG) is the gold standard therapy for intermediate/high-risk nonmuscle invasive bladder cancer (NMIBC). However, the response rate is ~60%, and 50% of non-responders will progress to muscle-invasive disease. BCG induces massive local infiltration of inflammatory cells (Th1) and ultimately cytotoxic tumor elimination. We searched for predictive biomarker of BCG response by analyzing tumor-infiltrating lymphocyte (TIL) polarization in the tumor microenvironment (TME) in pre-treatment biopsies. Pre-treatment biopsies from patients with NMIBC who received adequate intravesical instillation of BCG (n = 32) were evaluated retrospectively by immunohistochemistry. TME polarization was assessed by quantifying… More > Graphic Abstract

    A Th2-score in the tumor microenvironment as a predictive biomarker of response to Bacillus Calmette Guérin in patients with non-muscle invasive bladder carcinoma: A retrospective study

  • Open Access

    ARTICLE

    Metabolites Composition of Bacillus subtilis HussainT-AMU Determined by LC-MS and Their Effect on Fusarium Dry Rot of Potato Seed Tuber

    Touseef Hussain1,*, Abrar A. Khan1, Heba I. Mohamed2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 783-799, 2023, DOI:10.32604/phyton.2022.026045 - 29 November 2022

    Abstract Fusarium dry rot is considered to be the most critical soilborne and postharvest disease that damages potato tubers worldwide when they are stored for a long time. This study was performed to demonstrate the effect of crude extract, culture filtrate, and cell suspension obtained from the bacterium Bacillus subtilis HussainT-AMU, on the net house and field. From oil-contaminated soil, through the serial dilution method, biosurfactant bacteria were isolated on nutrient agar medium. To isolate and screen the prospective biosurfactant strain, various biosurfactant screening methods were used. Standard protocols were carried out for morphological, molecular, and chemical… More >

  • Open Access

    ARTICLE

    Screening of Bacillus subtilis HAAS01 and Its Biocontrol Effect on Fusarium wilt in Sweet Potato

    Chengyang Li1,2,#, Lianjun Wang1,#, Shasha Chai1,#, Yinghua Xu1,2, Chong Wang1,2, Yi Liu1,2, Jian Lei1, Xiaojie Jin1, Xianliang Cheng1, Yuanyuan Yang1, Xinsun Yang1,*, Wenying Zhang2,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1779-1793, 2022, DOI:10.32604/phyton.2022.020192 - 14 April 2022

    Abstract Fusarium wilt, a disease caused by Fusarium oxysporum f.sp batatas (Fob) is an important disease in sweet potato production. Using endophytic bacteria for biological control of sweet potato diseases is one of the important ways. A Bacillus subtilis with antagonistic effect on Fusarium wilt of sweet potato was isolated from soil by confrontation culture. According to the biological characteristics, 16S rDNA sequence analysis, and physiological and biochemical analysis, the Bacillus subtilis HAAS01 was named. A pot experiment was conducted for the biological control experiment of strain HAAS01, and the endogenous hormone content, antioxidant enzyme activity, soluble protein content, and related More >

  • Open Access

    ARTICLE

    Empirical Assessment of Bacillus Calmette-Guérin Vaccine to Combat COVID-19

    Nikita Jain1, Vedika Gupta1,*, Chinmay Chakraborty2, Agam Madan1, Deepali Virmani3, Lorenzo Salas-Morera4, Laura Garcia-Hernandez4

    CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 213-231, 2022, DOI:10.32604/cmc.2022.016424 - 07 September 2021

    Abstract COVID-19 has become one of the critical health issues globally, which surfaced first in latter part of the year 2019. It is the topmost concern for many nations’ governments as the contagious virus started mushrooming over adjacent regions of infected areas. In 1980, a vaccine called Bacillus Calmette-Guérin (BCG) was introduced for preventing tuberculosis and lung cancer. Countries that have made the BCG vaccine mandatory have witnessed a lesser COVID-19 fatality rate than the countries that have not made it compulsory. This paper’s initial research shows that the countries with a long-term compulsory BCG vaccination… More >

  • Open Access

    ARTICLE

    Biosynthesis of raw starch degrading β-cyclodextrin glycosyltransferase by immobilized cells of Bacillus licheniformis using potato wastewater

    YASSER S. MOSTAFA1,*, SAAD A. ALAMRI1,2, SULIMAN A. ALRUMMAN1, TAREK H. TAHA3, MOHAMED HASHEM1,4, MAHMOUD MOUSTAFA1,5, LAMIAA I. FAHMY6

    BIOCELL, Vol.45, No.6, pp. 1661-1672, 2021, DOI:10.32604/biocell.2021.016193 - 01 September 2021

    Abstract The study was sought to enhance the synthesis of thermal stable β-cyclodextrin glycosyltransferase (β-CGTase) using potato wastewater as a low-cost medium and assess the degree to which it is efficient for industrial production of β-cyclodextrin (β-CD) from raw potato starch. Thermophilic bacteria producing β-CGTase was isolated from Saudi Arabia and the promising strain was identified as Bacillus licheniformis using phylogenetic analysis of the 16S rRNA gene. Alginate-encapsulated cultures exhibited twice-fold of β-CGTase production more than free cells. Scanning electron microscopy (SEM) of polymeric capsules indicated the potential for a longer shelf-life, which promotes the restoration of… More >

  • Open Access

    ARTICLE

    Isolation and molecular identification of cellulolytic bacteria from Dig Rostam hot spring and study of their cellulase activity

    Sareh HAJIABADI1, Mansour MASHREGHI1, Ahmad Reza BAHRAMI1,2, Kiarash GHAZVINI3, Maryam M. MATIN1,2,*

    BIOCELL, Vol.44, No.1, pp. 63-71, 2020, DOI:10.32604/biocell.2020.08171 - 01 March 2020

    Abstract Cellulose is the main structural component of lignocellulosic wastes that can be converted to sugars and biofuels by cellulase. Due to wide applications of this enzyme in various industries around the world, cellulase is considered as the third industrial enzyme. The ability of thermophilic bacteria in the production of heat-stable cellulases has made them valuable tools in biotechnology. The aim of this study was isolation and molecular identification of cellulolytic thermophile bacteria from Dig Rostam hot spring and investigating their cellulase activity. Samples were taken from water and sediments of this hot spring, and cellulolytic… More >

  • Open Access

    ARTICLE

    Lactic Acid Fermentation from Coffee Ground Waste Hydrolysate by Lactobacillus rhamnosus

    Ja-Ryong Koo1, Hye Min Park1, Se Kyung Kim2, Hyun Shik Yun1,*

    Journal of Renewable Materials, Vol.7, No.4, pp. 365-372, 2019, DOI:10.32604/jrm.2019.04170

    Abstract Lactic acid is an important organic acid that is widely used in the food, pharmaceutical, and cosmetic industries. Lactic acid was produced from coffee ground waste which contains fermentable sugars and is increasingly generated from our daily dietary life. Among 114 strains of Lactobacillus species, Lactobacillus rhamnosus ATCC 10863 was selected for the production of lactic acid from coffee ground waste. Through alkali pretreatment and saccharification, cellulose and hemicellulose in coffee ground waste were converted into fermentable sugars. Pretreatment experiments were conducted at various alkali solution, concentrations, and times. Alkali pretreatment with 35 g/L… More >

  • Open Access

    ARTICLE

    Trichoderma spp. and Bacillus spp. as growth promoters in maize (Zea mays L.)

    López-Valenzuela BE1,2, Armenta-Bojórquez AD3, Hernández-Verdugo S4, Apodaca- Sánchez MA1, Samaniego-Gaxiola JA5, Valdez-Ortiz A6

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 37-46, 2019, DOI:10.32604/phyton.2019.04621

    Abstract Microbes that are beneficial to plants are used to enhance the crop growth, yield and are alternatives to chemical fertilizers. Trichoderma and Bacillus are the predominant plant growth-promoting fungi and bacteria. The objective of this study was select, characterize, and evaluate isolates of Trichoderma spp. and Bacillus spp. native from the northern region of Sinaloa, Mexico, and assess their effect on growth promotion in maize (Zea mays L.). In greenhouse conditions, four Trichoderma isolates and twenty Bacillus isolates, as well as two controls, were tested in a completely randomized design with three replicates. We selected… More >

  • Open Access

    ARTICLE

    Soy Protein Isolate Film by Incorporating Mandelic Acid as Well as Through Fermentation Mediated by Bacillus Subtilis

    Rakesh Kumar1,*, Priya Rani1, K. Dinesh Kumar2

    Journal of Renewable Materials, Vol.7, No.2, pp. 103-115, 2019, DOI:10.32604/jrm.2019.00027

    Abstract Soy protein isolate (SPI) biopolymeric films were prepared by adding different contents of mandelic acid (1 to 5% wrt SPI) to glycerol plasticized SPI by solution casting method. Also, SPI was fermented by Bacillus subtilis to get fermented SPI films by solution casting. Molecular mass determination of mandelic acid incorporated and fermented SPI films was carried out by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Mandelic acid incorporated and fermented SPI films were characterized by Fourier-transform infrared spectroscopy (FT-IR), dynamic mechanical analysis (DMA), tensile strength, water uptake and optical transmittance studies. Results indicated that incorporation of… More >

  • Open Access

    Solubilization of Renewable Phosphorus Sources with Organic Acids Produced by Bacillus megaterium

    Małgorzata Wyciszkiewicz, Agnieszka Saeid*, Katarzyna Chojnacka

    Journal of Renewable Materials, Vol.5, Suppl.1, pp. 39-52, 2017, DOI:10.7569/JRM.2017.634132

    Abstract The aim of this work was to evaluate the effects of using B. megaterium in solubilization of phosphates from different secondary raw materials, such as fish bones, poultry bones, ashes and phosphorite, by identification of the effect of different doses of phosphorus-bearing materials on the growth of microbial cells and the effectiveness of the solubilization process. Both FTIR as well as SEM-EDX techniques were used to compare the effect of the acids on renewable phosphorus source. Two doses of mentioned materials were used: 2 and 30 g/L. The effect of solubilization was expressed as the solubilization More >

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