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Colon cryptogenesis: Asymmetric budding
Journal article   Open access   Peer reviewed

Colon cryptogenesis: Asymmetric budding

C.W. Tan, Y. Hirokawa, B.S. Gardiner, D.W. Smith and A.W. Burgess
PloS one, Vol.8(10)
2013
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Abstract

The process of crypt formation and the roles of Wnt and cell-cell adhesion signaling in cryptogenesis are not well described; but are important to the understanding of both normal and cancer colon crypt biology. A quantitative 3D-microscopy and image analysis technique is used to study the frequency, morphology and molecular topography associated with crypt formation. Measurements along the colon reveal the details of crypt formation and some key underlying biochemical signals regulating normal colon biology. Our measurements revealed an asymmetrical crypt budding process, contrary to the previously reported symmetrical fission of crypts. 3D immunofluorescence analyses reveals heterogeneity in the subcellular distribution of E-cadherin and β-catenin in distinct crypt populations. This heterogeneity was also found in asymmetrical budding crypts. Singular crypt formation (i.e. no multiple new crypts forming from one parent crypt) were observed in crypts isolated from the normal colon mucosa, suggestive of a singular constraint mechanism to prevent aberrant crypt production. The technique presented improves our understanding of cryptogenesis and suggests that excess colon crypt formation occurs when Wnt signaling is perturbed (e.g. by truncation of adenomatous polyposis coli, APC protein) in most colon cancers.

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Collaboration types
Domestic collaboration
Citation topics
1 Clinical & Life Sciences
1.108 Molecular & Cell Biology - Cancer & Development
1.108.757 Wnt-Cadherin Interactions
Web Of Science research areas
Cell Biology
ESI research areas
Molecular Biology & Genetics
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