Life Sciences Commons^™

Antimicrobial Peptide Identification Using Multi-Scale Convolutional Network, Xin Su, Jing Xu, Yanbin Yin, Xiongwen Quan, Han Zhang

Department of Food Science and Technology: Faculty Publications

Background: Antibiotic resistance has become an increasingly serious problem in the past decades. As an alternative choice, antimicrobial peptides (AMPs) have attracted lots of attention. To identify new AMPs, machine learning methods have been commonly used. More recently, some deep learning methods have also been applied to this problem.

Results: In this paper, we designed a deep learning model to identify AMP sequences. We employed the embedding layer and the multi-scale convolutional network in our model. The multi-scale convolutional network, which contains multiple convolutional layers of varying filter lengths, could utilize all latent features captured by the multiple convolutional layers. …

Postharvest Heat Treatments To Inhibit Penicillium Digitatum Growth And Maintain Quality Of Mandarin (Citrus Reticulata Blanco), Diana B. Queb-Gonzalez, Aurelio Lopez-Malo, María E. Sosa-Morales, Rossana Villa-Rojas

Department of Food Science and Technology: Faculty Publications

Use of fungicides is a common practice as a postharvest treatment to control fruit decay. Nowadays, environment-friendly technologies, such as heat treatments, are viable replacements. This study evaluated the effects of post-harvest heat treatments (traditional and microwave-assisted) on mandarins intentionally inoculated with Penicillium digitatum. For the studied heat treatments, the target temperature was 50C, which was held for 2.5 min. After heating, mandarins were cooled and stored at 25C for 13 days. MW treatments effectively prevented mold growth during storage, while HW only delayed it. Control mandarins (without treatment) showed the highest significant weight loss. Neither thermal treatment nor storage …

A Novel And Green Nanoparticle Formation Approach To Forming Low-Crystallinity Curcumin Nanoparticles To Improve Curcumin’S Bioaccessibility, Ali Ubeyitogullari, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

Health-promoting effects of curcumin are well-known; however, curcumin has a very low bioavailability due to its crystalline structure. The main objective of this study was to develop a novel green nanoparticle formation method to generate low-crystallinity curcumin nanoparticles to enhance the bioavailability of curcumin. Nanoporous starch aerogels (NSAs) (surface area of 60 m2/g, pore size of 20 nm, density of 0.11 g/cm3, and porosity of 93%) were employed as a mold to produce curcumin nanoparticles with the help of supercritical carbon dioxide (SC-CO2). The average particle size of the curcumin nanoparticles was 66 nm. Impregnation into NSAs decreased the crystallinity …

Keeping Allergen Names Clear And Defined, Sanny K. Chan, Anna Pomés, Christiane Hilger, Janet M. Davies, Geoffrey Mueller, Annette Kuehn, Andreas L. Lopata, Gabriele Gadermaier, Marianne Van Hage, Monika Raulf, Richard E. Goodman

Department of Food Science and Technology: Faculty Publications

The World Health Organization/International Union of Immunological Societies (WHO/IUIS) Allergen Nomenclature Sub-Committee was established in 1986 by leading allergists to standardize names given to proteins that cause IgE-mediated reactions in humans. The Sub-Committee’s objective is to assign unique names to allergens based on a critical analysis of confidentially submitted biochemical and clinical data from researchers, often prior to publication to preserve consistency. The Sub-Committee maintains and revises the database as the understanding of allergens evolves. This report summarizes recent developments that led to updates in classification of cockroach group 1 and 5 allergens to animal as well as environmental and …

Gene Expression Value Prediction Based On Xgboost Algorithm, Wei Li, Yanbin Yin, Xiongwen Quan, Han Zhang

Department of Food Science and Technology: Faculty Publications

Gene expression profiling has been widely used to characterize cell status to reflect the health of the body, to diagnose genetic diseases, etc. In recent years, although the cost of genome-wide expression profiling is gradually decreasing, the cost of collecting expression profiles for thousands of genes is still very high. Considering gene expressions are usually highly correlated in humans, the expression values of the remaining target genes can be predicted by analyzing the values of 943 landmark genes. Hence, we designed an algorithm for predicting gene expression values based on XGBoost, which integrates multiple tree models and has stronger interpretability. …

Prophylactic Effects Of Isomaltodextrin In A Balb/C Mouse Model Of Egg Allergy, Yoshinori Mine, Yan Jin, Hua Zhang, Prithy Rupa, Kaustav Majumder, Takeo Sakurai, Yoshifumi Taniguchi, Ryodai Takagaki, Hikaru Watanabe, Hitoshi Mitsuzumi

Department of Food Science and Technology: Faculty Publications

The aim of this study was to evaluate the potential effects of isomaltodextrin (IMD), a dietary saccharide polymer derived from enzymatically produced from starch, on the ability to alter immune response (IR) bias to hen egg ovalbumin (Ova) induced allergic inflammation in mice. Groups of Balb/c mice were pre-treated with various doses of IMD in drinking water (1.0, 2.5, and 5.0% w/v) for 6 weeks and subsequently sensitized to the Ova together with continuous administration of IMD. To evaluate changes in immune response bias, immunoglobulin isotype-associated antibody activity, concentrations of type 1 and 2 cytokines and the percentage of T-regulatory …

Role Of Dietary Flavonoid Compounds In Driving Patterns Of Microbial Community Assembly, Kerry L. Ivey, Andrew T. Chan, Jacques Izard, Aedin Cassidy, Geraint B. Rogers, Eric B. Rimm

Department of Food Science and Technology: Faculty Publications

Flavonoids are a group of polyphenolic dietary compounds found in many different plant-based foods. There is increasing evidence that higher flavonoid intake may be causally linked to a reduced risk of cardiovascular disease and other chronic diseases. The bioactivity and bioavailability of many dietary flavonoids can be influenced by gastrointestinal microbiome metabolism. However, the role that habitual flavonoid intake plays in shaping the human gut microbiome is poorly understood. We describe an application of an ecosystem-based analytic approach to nutritional, microbiome, and questionnaire data from a cohort of more than 240 generally healthy adult males to assess the role of …

Bioinformatics Identification Of Anti-Crispr Loci By Using Homology, Guilt-By-Association, And Crispr Self-Targeting Spacer Approaches, Yanbin Yin, Bowen Yang, Sarah Entwistle

Department of Food Science and Technology: Faculty Publications

Anti-CRISPR (Acr) loci/operons encode Acr proteins and Acr-associated (Aca) proteins. Forty-five Acr families have been experimentally characterized inhibiting seven subtypes of CRISPR-Cas systems. We have developed a bioinformatics pipeline to identify genomic loci containing Acr homologs and/or Aca homologs by combining three computational approaches: homology, guilt-by-association, and self-targeting spacers. Homology search found thousands of Acr homologs in bacterial and viral genomes, but most are homologous to AcrIIA7 and AcrIIA9. Investigating the gene neighborhood of these Acr homologs revealed that only a small percentage (23.0% in bacteria and 8.2% in viruses) of them have neighboring Aca homologs and thus form Acr-Aca …

Experimental Evidence For Adaptation To Species-Specific Gut Microbiota In House Mice, Andrew H. Moeller, João C. Gomes-Neto, Sara Mantz, Hatem Kittana, Rafael R. Segura Munoz, Robert J. Schmaltz, Amanda E. Ramer-Tait, Michael W. Nachman

Department of Food Science and Technology: Faculty Publications

The gut microbial communities of mammals have codiversified with host species, and changes in the gut microbiota can have profound effects on host fitness. Therefore, the gut microbiota may drive adaptation in mammalian species, but this possibility is underexplored. Here, we show that the gut microbiota has codiversified with mice in the genus Mus over the past 6 million years, and we present experimental evidence that the gut microbiota has driven adaptive evolution of the house mouse, Mus musculus domesticus. Phylogenetic analyses of metagenomeassembled bacterial genomic sequences revealed that gut bacterial lineages have been retained within and diversified alongside Mus …

Candida Albicans Quorum-Sensing Molecule Farnesol Modulates Staphyloxanthin Production And Activates The Thiol-Based Oxidative-Stress Response In Staphylococcus Aureus, Taissa Vila, Eric F. Kong, Ahmed Ibrahim, Kurt Piepenbrink, Amol C. Shetty, Carrie Mccracken, Vincent Bruno, Mary Ann Jabra-Rizk

Department of Food Science and Technology: Faculty Publications

Microbial species utilize secreted-signaling molecules to coordinate their behavior. Our previous investigations demonstrated a key role for the Candida albicans-secreted quorum-sensing molecule farnesol in modulating Staphylococcus aureus response to antimicrobials in mixed biofilms. In this study, we aimed to provide mechanistic insights into the impact of farnesol on S. aureus within the context of inter-species interactions. To mimic biofilm dynamics, farnesol-sensitized S. aureus cells were generated via sequential farnesol exposure. The sensitized phenotype exhibited dramatic loss of the typical pigment, which we identified as staphyloxanthin, an important virulence factor synthesized by the Crt operon in S. aureus. Additionally, farnesol exposure …

Cell Wall Enzymes In Zygnema Circumcarinatum Utex 1559 Respond To Osmotic Stress In A Plant-Like Fashion, Elisabeth Fitzek, Lauren Orton, Sarah Entwistle, W. Scott Grayburn, Catherine Ausland, Melvin R. Duvall, Yanbin Yin

Department of Food Science and Technology: Faculty Publications

Previous analysis of charophyte green algal (CGA) genomes and transcriptomes for specific protein families revealed that numerous land plant characteristics had already evolved in CGA. In this study, we have sequenced and assembled the transcriptome of Zygnema circumcarinatum UTEX 1559, and combined its predicted protein sequences with those of 13 additional species [five embryophytes (Emb), eight charophytes (Cha), and two chlorophytes (Chl) as the outgroup] for a comprehensive comparative genomics analysis. In total 25,485 orthologous gene clusters (OGCs, equivalent to protein families) of the 14 species were classified into nine OGC groups. For example, the ChaCEmb group contains 4,174 OGCs …

Nitrogen, Cobalt Co-Doped Fluorescent Magnetic Carbon Dots As Ratiometric Fluorescent Probes For Cholesterol And Uric Acid In Human Blood Serum, Shan Huang, Erli Yang, Jiandong Yao, Xu Chu, Yi Liu, Yue Zhang, Qi Xiao

Department of Food Science and Technology: Faculty Publications

Detection of cholesterol and uric acid biomarkers is of great importance for clinical diagnosis of several serious diseases correlated with their variations in human blood serum. In this study, a new kind of well selective and highly sensitive ratiometric fluorescent probe for cholesterol and uric acid determination in human blood serum was innovatively developed on the basis of the inner filter effect (IFE) process of nitrogen, cobalt co-doped carbon dots (N,Co-CDs) with 2,3-diaminophenazine (DAP). DAP was the oxidative product during the oxidation reaction between ophenylenediamine and H2O2. Fluorescent magnetic N,Co-CDs possessing blue emission and magnetic property were prepared through a …

Long-Term Use Of Antibiotics And Risk Of Colorectal Adenoma, Yin Cao, Kana Wu, Raaj Mehta, David A. Drew, Mingyang Song, Paul Lochhead, Long H. Nguyen, Jacques Izard, Charles S. Fuchs, Wendy S. Garrett, Curtis Huttenhower, Shuji Ogino, Edward L. Giovannucci, Andrew T. Chan

Department of Food Science and Technology: Faculty Publications

Objective—Recent evidence suggests that antibiotic use, which alters the gut microbiome, is associated with an increased risk of colorectal cancer. However, the association between antibiotic use and risk of colorectal adenoma, the precursor for the majority of colorectal cancers, has not been investigated.

Design—We prospectively evaluated the association between antibiotic use at age 20–39 and 40–59 (assessed in 2004) and recent antibiotic use (assessed in 2008) with risk of subsequent colorectal adenoma among 16,642 women aged ≥60 enrolled in the Nurses’ Health Study who underwent at least one colonoscopy through 2010. We used multivariate logistic regression to calculate odds ratios …

Corrigendum: Use Of Uv Treated Milk Powder To Increase Vaccine Efficacy In The Elderly, Sara Schaefer, Kasper Arthur Hettinga, James Cullor, J. Bruce German, Bethany M. Henrick

Department of Food Science and Technology: Faculty Publications

“Peripheral blood samples were collected at the time of enrollment (week 0) and serum was stored at −80◦C until subsequent analysis. Participants were then randomized into two groups and provided with equal concentration and quantity of either dairy or soy supplement provided in powdered form in coded, single-serving bags. Both participants and researchers were blinded to the type of protein received. Participants were asked to consume two servings of protein powder (6 grams/packet) with 4 ounces of water or applesauce twice per day, with meals, for a total of 8 weeks. At week 4, participants were vaccinated with DTaP vaccine …

Tlr10 Senses Hiv-1 Proteins And Significantly Enhances Hiv-1 Infection, Bethany M. Henrick, Xiao-Dan Yao, Muhammad Atif Zahoor, Alash’Le Abimiku, Sophia Osawe, Kenneth L. Rosenthal

Department of Food Science and Technology: Faculty Publications

Toll-like receptors (TLRs) play a crucial role in innate immunity and provide a first line of host defense against invading pathogens. Of the identified human TLRs, TLR10 remains an orphan receptor whose ligands and functions are poorly understood. In the present study, we sought to evaluate the level of TLR10 expression in breastmilk (BM) and explore its potential function in the context of HIV-1 infection. We evaluated HIV-1-infected (Nigerian: n = 40) and uninfected (Nigerian: n = 27; Canadian: n = 15) BM samples for TLR expression (i.e., TLR10, TLR2, and TLR1) and report here that HIV-1-infected BM from Nigerian …

Hydrodistillation Extraction Kinetics Regression Models For Essential Oil Yield And Composition In Juniperus Virginiana, J. Excelsa, And J. Sabina, Ivanka B. Semerdjieva, Santosh Shiwakoti, Charles L. Cantrell, Valtcho D. Zheljazkov, Tess Astatkie, Vicki L. Schlegel, Tzenka Radoukova

Department of Food Science and Technology: Faculty Publications

The chemical profile and antioxidant capacity of Juniperus virginiana, J. excelsa, and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana, the highest limonene (43%) was found in the 0–5 min oil fraction, with safrole (37%) being highest in the 10–20 and 20–40 min fractions, and elemol (34%) being highest in the 160–240 min fraction. In J. excelsa, α-pinene (34-36%) was the highest in the 0–5 min …

Orphan Genes Shared By Pathogenic Genomes Are More Associated With Bacterial Pathogenicity, Sarah Entwistle, Yanbin Yin

Department of Food Science and Technology: Faculty Publications

Orphan genes (also known as ORFans [i.e., orphan open reading frames]) are new genes that enable an organism to adapt to its specific living environment. Our focus in this study is to compare ORFans between pathogens (P) and nonpathogens (NP) of the same genus. Using the pangenome idea, we have identified 130,169 ORFans in nine bacterial genera (505 genomes) and classified these ORFans into four groups: (i) SS-ORFans (P), which are only found in a single pathogenic genome; (ii) SS-ORFans (NP), which are only found in a single nonpathogenic genome; (iii) PS-ORFans (P), which are found in multiple pathogenic genomes; …

Unorthodox Synthesis, Biological Activity And Dft Studies Of Novel And Multifunctionalized Naphthoxocine Derivatives, Mohamed Ahmed Abozeid, Aya Atef El-Sawi, Mohamed Ramadan Elmorsy, Mohamed Abdelmoteleb, Abdel-Rahman Hassan Abdel- Rahman, El-Sayed Ibrahim El-Desoky

Department of Food Science and Technology: Faculty Publications

A new promising protocol has been developed for the synthesis of scarce oxocine derivatives 3a–e and 6 through addition of amine-based nucleophiles such as hydroxylamine hydrochloride, primary amine and hydrazide to chromonylidene benzothiazol-2-ylacetonitrile 2 in refluxing dioxane under metal free reaction conditions in moderate to good yields. Other nitrogen nucleophiles such as piperidine, hydrazine and thiosemicarbazide failed to afford the corresponding oxocinols, and instead pyridine derivatives 7, 8 and 10 were obtained exclusively. Predictive study for the biological activities using PASS (prediction of activity spectra for biologically active substances) online software showed optimistic activities for oxocinols 3a–e in the treatment …

Mycoprotein: The Future Of Nutritious Nonmeat Protein, A Symposium Review, Tim Ja Finnigan, Benjamin T. Wall, Peter J. Wilde, Francis B. Stephens, Steve Taylor, Marjorie R. Freedman

Department of Food Science and Technology: Faculty Publications

Mycoprotein is an alternative, nutritious protein source with a meat-like texture made from Fusarium venenatum, a naturally occurring fungus. Its unique method of production yields a significantly reduced carbon and water footprint relative to beef and chicken. Mycoprotein, sold as Quorn, is consumed in 17 countries, including the United States. In line with current dietary guidelines, mycoprotein is high in protein and fiber, and low in fat, cholesterol, sodium, and sugar. Mycoprotein may help maintain healthy blood cholesterol levels, promote muscle synthesis, control glucose and insulin levels, and increase satiety. It is possible that some susceptible consumers will become sensitized, …

In Vitro Bioaccessibility Of Low-Crystallinity Phytosterol Nanoparticles Generated Using Nanoporous Starch Bioaerogels, Ali Ubeyitogullari, Regis Moreau, Devin J. Rose, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

Phytosterols are natural health-promoting bioactive compounds; however, phytosterols have very limited bioavailability due to their crystalline lipophilic structure. With the aim of improving bioaccessibility, low-crystallinity phytosterol nanoparticles were generated by supercritical carbon dioxide (SC-CO2) impregnation of phytosterols into nanoporous starch aerogels (NSAs). The in vitro bioaccessibility of the phytosterol nanoparticles (35%) was significantly higher than that of the crude phytosterols (3%) after sequential oral, gastric, and intestinal digestion. The percentages of starch hydrolysis were not different among the various NSA preparations and reached to 64% after sequential digestion. The zeta potential of the phytosterol nanoparticles was higher compared to that …

Formation Of Low-Density And Free-Flowing Hollow Microparticles From Butter And Fractionated Palm Oil Mixture, Joshua Gudeman, Junsi Yang, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

The use of solid fats is challenging due to difficulty in incorporating into foods, handling during industrial food production, and relatively high-calorie contributions. The objective of this study was to form free-flowing and low-density hollow microparticles from nonhydrogenated fats, namely, butter and fractionated palm oil, using a novel method based on atomization of a carbon dioxide (CO₂)- expanded lipid mixture. The melting point of the fractionated palm oil decreased from 66.2 to 47.3°C above 120 bar in the presence of pressurized CO₂. The density of the particles decreased five-folds compared to that of the original oils. …

Extraction Of Astaxanthin From Engineered Camelina Sativa Seed Using Ethanol-Modified Supercritical Carbon Dioxide, Liyang Xie, Edgar B. Cahoon, Yue Zhang, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

Natural astaxanthin, a high-value carotenoid that is currently extracted mainly from marine organisms, was extracted from engineered camelina seed using ethanol-modified supercritical carbon dioxide (SC-CO₂) for the first time, and compared with hexane and accelerated solvent extraction using hexane and ethanol. Response surface methodology (RSM) based on central composite rotatable design was employed to investigate the effect of pressure (30–45 MPa), temperature (40–60 °C), and ethanol concentration (10–35%, w/w). RSM-optimized conditions (41.6 MPa, 36.6 °C and 42.0% ethanol concentration) predicted the astaxanthin concentration as 437 μg/g oil, whereas the actual concentration was 421 ± 14 μg/g oil. Astaxanthin …

Genomic Variations Underlying Speciation And Niche Specialization Of Shewanella Baltica, Jie Deng, Jennifer M. Auchtung, Konstantinos T. Konstantinidis, Ingrid Brettar, Manfred G. Höfle, James M. Tiedje

Department of Food Science and Technology: Faculty Publications

Shewanella baltica was the dominant culturable nitrate-reducing bacterium in the eutrophic and strongly stratified Baltic Sea in the 1980s, where it primar- ily inhabited the oxic-anoxic transition zone. The genomic structures of 46 of these isolates were investigated through comparative genomic hybridization (CGH), which revealed a gradient of genomic similarity, ranging from 65% to as high as 99%. The core genome of the S. baltica species was enriched in anaerobic respiration-associated genes. Auxiliary genes, most of which locate within a few genomic islands (GIs), were nonuniformly distributed among the isolates. Specifically, hypothet- ical and mobile genetic element (MGE)-associated genes dominated …

The Microbiomes Of Pancreatic And Duodenum Tissue Overlap And Are Highly Subject Specific But Differ Between Pancreatic Cancer And Non-Cancer Subjects, Erika Del Castillo, Richard Meier, Mei Chung, Devin C. Koestler, Tsute Chen, Bruce J. Paster, Kevin P. Charpentier, Karl T. Kelsey, Jacques Izard, Dominique S. Michaud

Department of Food Science and Technology: Faculty Publications

Background: In mice, bacteria from the mouth can translocate to the pancreas and impact pancreatic cancer progression. In humans, oral bacteria associated with periodontal disease have been linked to pancreatic cancer risk. It is not known if DNA bacterial profiles in the pancreas and duodenum are similar within individuals.

Methods: Tissue samples were obtained from 50 subjects with pancreatic cancer or other conditions requiring foregut surgery at the Rhode Island Hospital (RIH), and from thirty-four organs obtained from the National Disease Research Interchange. 16S rRNA gene sequencing was performed on 189 tissue samples (pancreatic duct, duodenum, pancreas), 57 swabs (bile …

Physicochemical Properties And Rheological Behavior Of Flours And Starches From Four Bean Varieties For Gluten-Free Pasta Formulation, Hollman Motta Romero, Yue Zhang

Department of Food Science and Technology: Faculty Publications

The rheological behavior of gluten-free flour dispersions from four pulse market classes, including great northern, navy, red kidney (Phaseolus vulgaris L.), and garbanzo beans (Cicer arietinum) were evaluated and compared to soft wheat as a gluten-containing control. Their starches were isolated and the relationships between flour behavior and starch characteristics were studied. Soft wheat (56%) and garbanzo (39%) flours presented higher starch contents than the Phaseolus vulgaris beans (33–35%), which resulted in the development of stronger gel network structures. It was found that starch amylose content and granule size affected the swelling and pasting properties of both starches and flours. …

In Vitro Bioaccessibility Of Novel Low-Crystallinity Phytosterol Nanoparticles In Non-Fat And Regular-Fat Foods, Ali Ubeyitogullari, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

Crystalline structure of phytosterols leads to poor bioavailability and makes their incorporation into foods challenging. Bioaccessibility of first-of-their-kind low-crystallinity phytosterol nanoparticles impregnated in nanoporous starch aerogels (PS-NSA) was evaluated in non-, low-, and regular-fat solid and aqueous food formulations, namely, granola bars and puddings for the first time. Bioaccessibility of the phytosterol nanoparticles was significantly higher than that of crude phytosterols in all food formulations (p < .05); it was 88.2 and 91.8% for low- or regular-fat granola bars, respectively, whereas bioaccessibility of crude phytosterols was ca. 30% in those formulations. However, decreasing the lipid content to zero resulted in lower phytosterols' bioaccessibilities from both PS-NSA (53%) and crude phytosterols (ca. 16%) in non-fat granola bars. Bioaccessibility of crude phytosterols (2%) was significantly enhanced with PS-NSA (19%) in the pudding formulation. PS-NSA allows preparation of low- and non-fat foods enriched with phytosterols while enhancing the health benefits of phytosterols with smaller doses.

N-Glycans From Human Milk Glycoproteins Are Selectively Released By An Infant Gut Symbiont In Vivo, Sercan Karav, Giorgio Casaburi, Aysenur Arslan, Merve Kaplan, Berfin Sucu, Steven Frese

Department of Food Science and Technology: Faculty Publications

Complex, indigestible free oligosaccharides as well as conjugated glycans are found in milk that shape the gut microbiome of infants. The activity of an endo-β-N-acetylglucosaminidase from B. longum subsp. infantis (B. infantis) is known to release N-glycans from native milk glycoproteins under physiological conditions. We investigated whether this enzyme is active in vivo in breastfed infants fed B. infantis EVC001. Using mass spectrometry, we found 19 N-glycans related to human milk glycoproteins increased in abundance, similar to previous work using bovine milk glycoproteins, and these 19 N-glycans matched unique specificities of this enzyme. Twenty N …

Gut Microbiota Dependent Anti-Tumor Immunity Restricts Melanoma Growth In Rnf5−/− Mice, Yan Li, Roberto Tinoco, Lisa Elmén, Igor Segota, Yibo Xian, Yu Fujita, Avinash Sahu, Raphy Zarecki, Kerrie Marie, Yongmei Feng, Ali Khateb, Dennie T. Frederick, Shiri K. Ashkenazi, Hyungsoo Kim, Eva Guijarro Perez, Chi-Ping Day, Rafael S. Segura Muñoz, Robert Schmaltz, Shibu Yooseph, Miguel A. Tam, Tongwu Zhang, Emily Avitan-Hersh, Lihi Tzur, Shoshana Roizman, Ilanit Boyango, Gil Bar-Sela, Amir Orian, Randal J. Kaufman, Marcus Bosenberg, Colin R. Goding, Bas Baaten, Mitchell P. Levesque, Reinhard Dummer, Kevin Brown, Glenn Merlino, Eytan Ruppin, Keith Flaherty, Amanda Ramer-Tait, Tao Long, Scott N. Peterson, Linda M. Bradley, Ze’Ev A. Ronai

Department of Food Science and Technology: Faculty Publications

Accumulating evidence points to an important role for the gut microbiome in anti-tumor immunity. Here, we show that altered intestinal microbiota contributes to anti-tumor immunity, limiting tumor expansion. Mice lacking the ubiquitin ligase RNF5 exhibit attenuated activation of the unfolded protein response (UPR) components, which coincides with increased expression of inflammasome components, recruitment and activation of dendritic cells and reduced expression of antimicrobial peptides in intestinal epithelial cells. Reduced UPR expression is also seen in murine and human melanoma tumor specimens that responded to immune checkpoint therapy. Co-housing of Rnf5−/− and WT mice abolishes the anti-tumor immunity and tumor inhibition …

Histone Acetylation Increases In Response To Ferulic, Gallic, And Sinapic Acids Acting Synergistically In Vitro To Inhibit Candida Albicans Yeast‐To‐Hyphae Transition, Cristiane R. S. Câmara, Qin-Yin Shi, Matthew Pedersen, Richard Zbasnik, Kenneth Nickerson, Vicki Schlegel

Department of Food Science and Technology: Faculty Publications

Novel treatments are needed to prevent candidiasis/candidemia infection due to the emergence of Candida species resistant to current antifungals. Considering the yeast-to‐hyphae switch is a critical factor to Candida albicans virulence, phenols common in plant sources have been reported to demonstrating their ability to prevent dimorphism. Therefore, phenols present in many agricultural waste stress (ferulic (FA) and gallic (GA) acid) were initially screened in isolation for their yeast‐to‐hyphae inhibitory properties at times 3, 6, and 24 hr. Both FA and GA inhibited 50% of hyphae formation inhibitory concentration (IC₅₀) but at a concentration of 8.0 ± 0.09 and …