Bringing Synbiotic Interventions in Cancer to Practice: from bench to bedside The UC Davis Foods for Health Institute

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1 Bringing Synbiotic Interventions in Cancer to Practice: from bench to bedside The UC Davis Foods for Health Institute Jennifer T. Smilowitz, PhD Associate Director, Human Studies Research

2 Foods for Health Institute Jennifer Smilowitz, FFHI, Associate Director Human Studies Research Translating Targets and Testing Efficacy to Personalize Diet & Health to Prevent Disease

3 Oligosaccharides in Milk Oligosaccharides are 3 rd most abundant component in human milk BUT Humans do not have the enzymes to digest them! Why are they there?

4 Bifidobacterium infantis Oligosaccharides unique to milk select specific Bifidobacteria 2.5 Mb infantis to colonize and dominate the intestinal microbiome of infants David Mills Food Sci,V&E Sialidase 0.5 Mb Fucosidase Hexosaminidase 0.5 Mb 1.0 Mb 1.0 Mb galactosidase ESB? - Glc Gal GlcNAc Fuc Neu5Ac

5 Analytical Chemistry Characterization of HMO: development of novel analytical technologies and methods Carlito Lebrilla Chemistry Ninonuevo et al, 2006; Ninonuevo et al, 2007; Ninonuevo et al, 2009, Wu et al, 2010, Wu et al, 2011

6 Functions of Free Oligosaccharides in Milk Intestine As food for beneficial bacteria (Prebiotics) Intestine Prevent adhesion of pathogenic bacteria D. S. Newburg, et al, 2005.

7 Science to Practice Premature Infants Necrotizing Enterocolitis Combination of Human milk oligosaccharides plus Bifidobacteria longum subsp. infantis protection, growth

8 GI Microbiota & Cancer Function of Normal Adult Microbiota?

9 Sekirov, Physiol Rev. 2010; Lee, Science, 2010

10 Function of GI Microbiota Immune Barrier fortification tight junction regulation Immune system development Metabolic Synthesize vitamins Ferment non-digestible carbohydrates Produce SCFA Salvage energy Facilitate ion absorption Metabolize dietary carcinogens Resta, J. Physiology, 2009; Stetcher, Curr. Opin Micro, 2011

11 Lee, Science, 2010

12 Does Gut Dysbiosis Influence the Etiology of Cancer?

13 GI Dysbiosis in CRC Pyroseq identified bacterial genera differentiates CRC and healthy controls qpcr levels of Bacteroides/Prevotella group 5-fold higher in CRC vs. control Immunohistochemistry, TH17 reactive cells significantly higher in normal mucosa of cancer patients vs. not detected in healthy controls Toprak, Clin. Microbiol. Infect.; Wu, Nature Med, 2009; Sobhani, PLOS One, 2011

14 How to Modulate Gut Microbiota to Improve Cancer Etiology?

15 Improving QoL during RT Double-blind, placebo-controlled trial, n = 490 Adjuvant postoperative radiation therapy after surgery for sigmoid, rectal, or cervical cancer, randomized, VSL#3 (4.5 X ) or placebo starting from the first day of RT Outcome Placebo VSL#3 Significance RT-induced enteritis & colitis 52% 32% P < Grade 3 or 4 diarrhea 55% 1.4% P < Daily bowel movements 14.7 ± ± 3 P < 0.05 Delia, World J Gastroenterol, 2007

16 What s in VSL#3 Ewaskchuk, Am. J. Physiol. Gastrointestinal Liver Physiol. 2008

17 B. Infantis Soluble Proteins Ewaskchuk,, Am. J. Physiol. Gastrointestinal Liver Physiol. 2008

18 B. Infantis Soluble Proteins Ewaskchuk,, Am. J. Physiol. Gastrointestinal Liver Physiol. 2008

19 How to Hone B. infantis Functions? Synbiotics

20 HMO grown B. Infantis Binding Helen Raybould Vet School HMO-grown B. infantis adheres better to intestinal cells Chichlowski JPGN, 2012

21 B. infantis anti-inflammatory Caco-2 HMO-grown Bifidobacteria modulate inflammatory signaling molecules: net anti-inflammatory Chichlowski JPGN, 2012

22 Food Science: Translation Bovine milk oligosaccharides (BMO): Translating the benefits of human milk to children, adults, the elderly, cancer patients, Daniela Barile Food Science Zivkovic & Barile, Adv Nutr, 2(3): 284-9, 2011

23 UCD Milk Processing Lab Food grade, pilot scale equipment and facilities for: Testing out new food formulations Processing new streams Bioactives separation Daniela Barile Food Science

24 Do BMO modulate an adult intestinal microbiota? OD 600 Fecal microbiota Δ Metabolomic analyses Well-being Targeting intestinal health Jennifer Smilowitz FFHI Dairy Research Institute Carolyn Slupsky Nutrition Daniela Barile Food Science

25 FFHI-Cancer Center: Synbiotics Intervention Improving gut function in cancer patients undergoing Cancer therapy to improve quality of life and increase efficacy of treatment. (RISE, Mucosal Immunity) Sensory testing: formulations of bioactives-enriched ice cream Ralph de Vere White UCD Cancer Center

26 FFHI Synbiotics Approach Safe--owing 100 million years of testing Selectivity--leveraging evolutionary relationship B. infantis and milk oligosaccharides Effective-- adheres to epithelial cells, non-motile Translation--lower incidence of NEC, rotavirus infants Physical Protection--Prevents pathogens from invading, don t translocate Immune Regulation--Modulates innate & shapes adaptive immune systems Anti-inflammatory--Lower regional inflammation

27 Acknowledgements

Presented by Megan R. Sanctuary, MS University of California at Davis

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