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1. Guardian crypt-base-goblet-cells protect the human colonic stem cell niche by triggering cholinergic calcium signal-dependent MUC2 secretion and luminal flushing

Author

Nicolas Pelaez-Llaneza, Victoria Jones, Christy Kam, Alvin Lee, Alyson Parris, Sean Tattan, Martin Loader, Jordan Champion, George Russam, Ben Miller, Nathalie Juge, Richard Wharton, Christopher Speakman, Sandeep Kapur, James Hernon, Adam Stearns, Irshad Shaik, Anatu Pal, Alexia Tsigka, Diogenis Batsoulis, and Mark Williams

Subjects
digestive system diseases
Abstract

Mucus secreting goblet cells play a vital role in the maintenance of tissue homeostasis. Here we report the discovery of an enigmatic mechanism for the generation of calcium signals that couple cholinergic input to secretion of hydrated mucus in the human colonic stem cell niche. Mechanistic insights for this study were derived from native human colonic crypts and crypt-like organoids expressing MUC2-mNEON. Importantly, we demonstrate that the human colonic stem cell niche is also a cholinergic niche, and that activation of muscarinic receptors initiates calcium signals at the apical pole of intestinal stem cells and neighbouring crypt-base-goblet-cells. The calcium signal ‘trigger zone’ is defined by a microdomain of juxtaposed calcium stores expressing TPC1 and InsP3R3 calcium channels. Co-activation of TPC1 and InsP3R3 is required for generation of cholinergic calcium signals and downstream secretion of hydrated mucus, which culminates in the flushing of the colonic stem cell niche.

Published
2022
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2. Prophylactic biological mesh reinforcement versus standard closure of stoma site (ROCSS): a multicentre, randomised controlled trial

Author

Aneel Bhangu, Dmitri Nepogodiev, Natalie Ives, Laura Magill, James Glasbey, Colm Forde, Thue Bisgaard, Kelly Handley, Samir Mehta, Dion Morton, Thomas Pinkney, James Brown, Kaori Futaba, Sarah Khan, Arvind Pallan, Abhilasha Patel, Steve Ashdown-Phillips, Tracy Roberts, Susan Jowett, Lorraine Munetsi, Andrew Torrance, Nicholas Hilken, Matt Hill, Mark Hunter, Susan Leek, Helen Lilly, Amruta Sawant, Alexandra Vince, Michael Walters, Willem Bemelman, Marjolein Blussé, Wernard Borstlap, Olivier RC Busch, Christianne Buskens, Charlotte Klaver, Hendrik Marsman, Oddeke van Ruler, Pieter Tanis, Emma Westerduin, Dennis Wicherts, Parthasarathi Das, Sharadah Essapen, Victoria Frost, Ana Glennon, Catherine Gray, Anwar Hussain, Lisa McNichol, Pasha Nisar, Humphrey Scott, Jonathan Trickett, Prateesh Trivedi, Daniel White, Talakalukoppa Amarnath, Rohan Ardley, Robin Gupta, Emily Hall, Kathryn Hodgkins, Harjeet Narula, Terri-Ann Sewell, John M Simms, Julie Toms, Tim White, Angela Atkinson, Dan Beral, Nicola Lancaster, Felicity Mackenzie, Tim Wilson, David Cruttenden-Wood, Jackie Gibbins, Mark Halls, Dennise Hill, Karen Hogben, Stephanie Jones, Michael J Lamparelli, Mark Lewis, Sarah Moreton, Paul Ng, Arabis Oglesby, James Orbell, Benjamin Stubbs, Krishnan Subramanian, Anjay Talwar, Simon Wilsher, Mohammed Al-Rashedy, Catherine Fensom, Muhammed Gok, Lisa Hardstaff, Kamran Malik, Mohammed Sadat, Barbara Townley, Lesley Wilkinson, Tracey Cosier, Sudhakar Mangam, Mohamed Rabie, Graham Broadley, John Canny, Simon Fallis, Nikki Green, Ahmed Hawash, Sharad Karandikar, Mehboob Mirza, Edward Rawstorne, Julie Reddan, Jonathan Richardson, Chris Thompson, Kathryn Waite, Haney Youssef, Lindsey De Nes, Steffen Rosenstock, Pernille Strandfelt, Mikkel Westen, Kamal Aryal, Kirosh Shankar Kshatriya, Roshan Lal, Vamsi Velchuru, Elva Wilhelmsen, Ayesha Akbar, Anthony Antoniou, Sue Clark, Pooja Datt, Jason Goh, Ian Jenkins, Robin Kennedy, Yasuko Maeda, Piero Nastro, Harriet Owen, Robin KS Phillips, Janindra Warusavitarne, Joanne Bradley-Potts, Peter Charleston, Hamish Clouston, Sarah Duff, Taher Fatayer, Anna Gipson, Nick Heywood, Muneer Junejo, James Kennedy, Helen Lalor, Chris Manning, Richard McCormick, Kathryn Parmar, Stephen Preston, Aswatha Ramesh, Abhiram Sharma, Karen Telford, Abidemi Adeosun, Toby Hammond, Susan Smolen, Joanne Topliffe, James G Docherty, Michael Lim, Kathleen Macleod, Eimar Monaghan, Lesley Patience, Ian Thomas, Kenneth G Walker, Michael Walker, Angus JM Watson, Amanda Burgess, Yasser Ghanem, Georgina Glister, Sandeep Kapur, Abhilash Paily, Atanu Pal, Rathinam Ravikumar, Melissa Rosbergen, Kevin Sargen, Christopher Speakman, Anil K Agarwal, Amlan Banerjee, David Borowski, Dharmendra Garg, Talvinder Gill, Tracey Johnston, Susan Kelsey, Phanibhushana Chakravarthy Munipalle, Mohamed Tabaqchali, Deborah Wilson, Austin Acheson, Heather Cripps, Ahmed El-Sharkawy, Oliver Ng, Parveen Sharma, Kym Ward, Dawne Chandler, Edward Courtney, John Bunni, Katrina Butcher, Stephen Dalton, Ian Flindall, Joyce Katebe, Pratik Roy, Jeremy Tate, Tracy Vincent, Michael ER Williamson, James Wood, Mark Bignell, Graham Branagan, Jack Broardhurst, Helen Chave, Hilary Dean, Nigel D'Souza, Gemma Foster, Simon Sleight, Rupesh Sutaria, Ishmail Ahmed, Misra Rai Budhoo, Julie Colley, Neil Cruickshank, Kathryn Gill, Anne Hayes, Howard Joy, Carrington Kamabjha, James Plowright, Simon Radley, Mr Rea, Vijay Thumbe, Philip Varghese, Richard Wilkin, Elzbieta Zulueta, Lynne Allsop, Bence Atkari, Krishnamurthy Badrinath, Prita Daliya, Mukul Dube, Cheryl Heeley, Richard Hind, Dominic Nash, Andrea Palfreman, Oliver Peacock, Nicholas Watson, Michelle Blodwell, Ali Javaid, Ashiq Mohamad, Karim Muhammad, Nafees Qureshi, Stephanie Ridgway, Kamran Siddiqui, Mamoon Solkar, Joanne Vere, Alexander Wordie, Jessica Chang, Sanaa Elgaddal, Marie Green, Marianne Hollyman, Nazzia Mirza, Jayne Rankin, Graham Williams, Wadah Ali, Anne Hardwick, Zakir Mohamed, Ahmad Navid, Kimberley Netherton, Mugurel Obreja, Milind Rao, Joanna Stringer, Athula Tennakoon, Timothy Bullen, Mansoor Butt, Robin Dawson, Sarah Dawson, Martin Farmer, Veerabhadram Garimella, Zoe Gates, Lisa Wilkings, Neil Yeomans, Olufunso Adedeji, Rashid Alalawi, Aamed Al Araimi, Shazad Ashraf, Simon Bach, Andrew Beggs, Carmen Cagigas, Mit Dattani, Nikolletta Dimitriou, Manijeh Ghods-Ghorbani, David Gourevitch, Geoffrey Haydon, Tariq Ismail, Christopher Keh, Dion G Morton, Mandip Narewal, Trifonas Papettas, Tom Pinkney, Aaron Poh, Edward Ranstorne, Timothy J Royle, Tahir Shah, Jagdeep Singh, Chris Smart, Nigel Suggett, Muhammad Tayyab, Deepak Vijayan, Ravinder Vohra, Naseem Wairaich, Denise Yeung, Richard Bamford, Joanne Chambers, David Cotton, Rebecca Houlihan, James Kynaston, Rob Longman, Amelia Lowe, David Messenger, Anwar Owais, Catherine Phillpott, Jamshed Shabbir, Phil Baragwanath, Charlotte El-Sayed, Anne Gaunt, Chetan Khatri, Peter McCullough, Stephen Ward, Ross Obukofe, Robert Stroud, David Mason, Nigel Williams, Ling S Wong, Sanjay Chaudhri, Jill Cooke, Melissa Cunha, Howard Fairey, Michael Norwood, Baljit Singh, Sarah Thomasset, Sian Abbott, Sarah Addison, James Archer, Robert Church, Erika Holford, Fionnaula Lenehan, Steve Odogwu, Lisa Richardson, Jane Sidebotham, Elaine Swan, Alison Tilley, Lynda Wagstaff, Isobel Amey, Yolanda Baird, Neil Cripps, Susanna Greenslade, Guy Harris, Bruce Levy, Paul Mckenzie, Alison Misselbrook, Sally Moore, Angela Skull, Deborah Nicol, Bala Reddy, Jessica Thrush, Miriam Iglesias Vecchio, Yvonne Dunn, Claire Williams, Sanjay Furtado, Michael Gill, Lydia Gilmore, Paul Goldsmith, Cezary Kocialkowski, Sadasivam Loganathan, Rabindra Nath, Marius Paraoan, Tracey Taylor, Andrew Allison, Joanna Allison, Nathan Curtis, Richard Dalton, Conrad D'Costa, Godwin Dennison, Jake Foster, Nader Francis, James Gibbons, Mohammed Hamdan, Alison Lewis, Jonathan Ockrim, Rishabha Sharma, Katie Spurdle, Saseendran Varadharajan, Assad Aghahoseini, David J Alexander, Dibyendu Bandyopadhyay, Ian Bradford, Praminthra Chitsabesan, Zoe Coleman, Andrew Gibson, Kostas Lasithiotakis, Dimitrios Panagiotou, Konstantinos Polyzois, Stevan Stojkovic, Nicholas Woodcock, Monica Wright, Rachel Hargest, Richard Jackson, Arumugam Rajesh, Olagunju Ogunbiyi, Andrew Slater, Ly-Mee Yu, Surgery, AGEM - Digestive immunity, AGEM - Re-generation and cancer of the digestive system, AGEM - Endocrinology, metabolism and nutrition, and Graduate School

Subjects
Adult, Male, medicine.medical_specialty, Hernia, Incisional hernia, Colon, medicine.medical_treatment, 030204 cardiovascular system & hematology, Article, law.invention, Abdominal wall, 03 medical and health sciences, Ileostomy, 0302 clinical medicine, Ileus, Postoperative Complications, Randomized controlled trial, Double-Blind Method, law, General & Internal Medicine, medicine, Incisional Hernia, Humans, 030212 general & internal medicine, Prospective Studies, 11 Medical and Health Sciences, Aged, Intention-to-treat analysis, business.industry, Incidence (epidemiology), Surgical Stomas, Abdominal Wound Closure Techniques, General Medicine, Prostheses and Implants, Middle Aged, Surgical Mesh, medicine.disease, 3. Good health, Surgery, medicine.anatomical_structure, Relative risk, Female, Collagen, business, Reinforcement of Closure of Stoma Site (ROCSS) Collaborative and West Midlands Research Collaborative
Abstract

Summary Background Closure of an abdominal stoma, a common elective operation, is associated with frequent complications; one of the commonest and impactful is incisional hernia formation. We aimed to investigate whether biological mesh (collagen tissue matrix) can safely reduce the incidence of incisional hernias at the stoma closure site. Methods In this randomised controlled trial (ROCSS) done in 37 hospitals across three European countries (35 UK, one Denmark, one Netherlands), patients aged 18 years or older undergoing elective ileostomy or colostomy closure were randomly assigned using a computer-based algorithm in a 1:1 ratio to either biological mesh reinforcement or closure with sutures alone (control). Training in the novel technique was standardised across hospitals. Patients and outcome assessors were masked to treatment allocation. The primary outcome measure was occurrence of clinically detectable hernia 2 years after randomisation (intention to treat). A sample size of 790 patients was required to identify a 40% reduction (25% to 15%), with 90% power (15% drop-out rate). This study is registered with ClinicalTrials.gov, NCT02238964. Findings Between Nov 28, 2012, and Nov 11, 2015, of 1286 screened patients, 790 were randomly assigned. 394 (50%) patients were randomly assigned to mesh closure and 396 (50%) to standard closure. In the mesh group, 373 (95%) of 394 patients successfully received mesh and in the control group, three patients received mesh. The clinically detectable hernia rate, the primary outcome, at 2 years was 12% (39 of 323) in the mesh group and 20% (64 of 327) in the control group (adjusted relative risk [RR] 0·62, 95% CI 0·43–0·90; p=0·012). In 455 patients for whom 1 year postoperative CT scans were available, there was a lower radiologically defined hernia rate in mesh versus control groups (20 [9%] of 229 vs 47 [21%] of 226, adjusted RR 0·42, 95% CI 0·26–0·69; p

Published
2019

3. Canonical Wnt signals combined with suppressed TGFβ/BMP pathways promote renewal of the native human colonic epithelium

Author

Naohide Oue, Kevin Sargen, Andrea Münsterberg, Christy Kam, Ahmed El Hadi, James Hernon, Christopher Speakman, Mark Williams, William Stebbings, R Tighe, Sandeep Kapur, Natalia Wharton, Wataru Yasui, Amy Reynolds, Anastasia Sobolewski, Richard Wharton, Loren Bigwood, Esther M. Mitchell, Alyson Parris, Crawford Jamieson, and Michael P. Lewis

Subjects
Adult, Colon, Cellular differentiation, Epithelial Differentiation, Crypt, Biology, Bone morphogenetic protein, digestive system, Imaging, Intestinal mucosa, Cell Movement, Transforming Growth Factor beta, Humans, Regeneration, Intestinal Mucosa, Progenitor cell, Wnt Signaling Pathway, In Situ Hybridization, Aged, Cell Proliferation, Aged, 80 and over, Epithelial Proliferation, Microscopy, Confocal, Stem Cells, Gastroenterology, Wnt signaling pathway, LGR5, Cell Differentiation, Epithelial Kinetics, Middle Aged, digestive system diseases, Cell biology, Bone Morphogenetic Proteins, Stem cell, Signal Transduction
Abstract

Background A defining characteristic of the human intestinal epithelium is that it is the most rapidly renewing tissue in the body. However, the processes underlying tissue renewal and the mechanisms that govern their coordination have proved difficult to study in the human gut. Objective To investigate the regulation of stem cell-driven tissue renewal by canonical Wnt and TGFβ/bone morphogenetic protein (BMP) pathways in the native human colonic epithelium. Design Intact human colonic crypts were isolated from mucosal tissue samples and placed into 3D culture conditions optimised for steady-state tissue renewal. High affinity mRNA in situ hybridisation and immunohistochemistry were complemented by functional genomic and bioimaging techniques. The effects of signalling pathway modulators on the status of intestinal stem cell biology, crypt cell proliferation, migration, differentiation and shedding were determined. Results Native human colonic crypts exhibited distinct activation profiles for canonical Wnt, TGFβ and BMP pathways. A population of intestinal LGR5/OLFM4-positive stem/progenitor cells were interspersed between goblet-like cells within the crypt-base. Exogenous and crypt cell-autonomous canonical Wnt signals supported homeostatic intestinal stem/progenitor cell proliferation and were antagonised by TGFβ or BMP pathway activation. Reduced Wnt stimulation impeded crypt cell proliferation, but crypt cell migration and shedding from the crypt surface were unaffected and resulted in diminished crypts. Conclusions Steady-state tissue renewal in the native human colonic epithelium is dependent on canonical Wnt signals combined with suppressed TGFβ/BMP pathways. Stem/progenitor cell proliferation is uncoupled from crypt cell migration and shedding, and is required to constantly replenish the crypt cell population.

Published
2013
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4. Consumption of fish oil leads to prompt incorporation of eicosapentaenoic acid into colonic mucosa of patients prior to surgery for colorectal cancer, but has no detectable effect on epithelial cytokinetics

Author

Ian T. Johnson, William Stebbings, Michael J. C. Rhodes, Mark A. Watson, Christopher Speakman, Jennifer A. Matthew, and Jennifer M. Gee

Subjects
Male, medicine.medical_specialty, Docosahexaenoic Acids, Colorectal cancer, Colon, Crypt, Medicine (miscellaneous), Adipose tissue, Biology, Gastroenterology, Fish Oils, Intestinal mucosa, Internal medicine, Preoperative Care, medicine, Humans, Mesentery, Intestinal Mucosa, Aged, chemistry.chemical_classification, Nutrition and Dietetics, Cell Cycle, medicine.disease, Fish oil, Eicosapentaenoic acid, Surgery, chemistry, Adipose Tissue, Eicosapentaenoic Acid, Docosahexaenoic acid, Fatty Acids, Unsaturated, Female, Colorectal Neoplasms, Polyunsaturated fatty acid
Abstract

Fish oil (FO) was previously reported to partially normalize colorectal crypt cell cytokinetics in patients with colorectal neoplasms. We determined the effect of FO on the fatty acid composition of colonic mucosa and mesenteric adipose tissue and on rectal crypt cell proliferation in patients undergoing surgery for colonic carcinoma. Patients (49-28 males; 21 females) were randomly assigned to consume FO capsules (2 g b.d.; FO group) containing 1.4 g eicosapentaenoic acid (EPA) and 1.0 g docosahexaenoic acid per day, or safflower oil capsules (2 g b.d.; placebo group) for an average of 12.3 +/- 0.5 d prior to surgery. Rectal biopsies were obtained at entry, at surgery, and 8-12 wk postsurgery. Colonic biopsies and samples of mesenteric adipose tissue were analyzed for fatty acids by gas-liquid chromatography. Mitosis was determined in whole crypt mounts. The proportion of EPA (g/100 g total fatty acids) in mucosal lipids was significantly greater in FO patients compared to the placebo group, but there was no effect on mesenteric adipose tissue. However self-reported use of FO supplements prior to surgery was associated with higher levels of EPA in adipose tissue. There was no significant effect of FO on the frequency or spatial distribution of crypt cell mitosis. EPA from marine oil supplements is rapidly incorporated into the colonic mucosal lipids of humans, but the levels achieved in the present study did not modify colorectal cytokinetics.

Published
1999

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