Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Frequent mutations that converge on the NFKBIZ pathway in ulcerative colitis

This article has been updated


Chronic inflammation is accompanied by recurring cycles of tissue destruction and repair and is associated with an increased risk of cancer1,2,3. However, how such cycles affect the clonal composition of tissues, particularly in terms of cancer development, remains unknown. Here we show that in patients with ulcerative colitis, the inflamed intestine undergoes widespread remodelling by pervasive clones, many of which are positively selected by acquiring mutations that commonly involve the NFKBIZ, TRAF3IP2, ZC3H12A, PIGR and HNRNPF genes and are implicated in the downregulation of IL-17 and other pro-inflammatory signals. Mutational profiles vary substantially between colitis-associated cancer and non-dysplastic tissues in ulcerative colitis, which indicates that there are distinct mechanisms of positive selection in both tissues. In particular, mutations in NFKBIZ are highly prevalent in the epithelium of patients with ulcerative colitis but rarely found in both sporadic and colitis-associated cancer, indicating that NFKBIZ-mutant cells are selected against during colorectal carcinogenesis. In further support of this negative selection, we found that tumour formation was significantly attenuated in Nfkbiz-mutant mice and cell competition was compromised by disruption of NFKBIZ in human colorectal cancer cells. Our results highlight common and discrete mechanisms of clonal selection in inflammatory tissues, which reveal unexpected cancer vulnerabilities that could potentially be exploited for therapeutics in colorectal cancer.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Somatic mutations in single crypts.
Fig. 2: Driver genes and clonal expansion in the UC epithelium.
Fig. 3: Effect of driver mutations.
Fig. 4: Comparison of driver mutations between UC non-dysplasia and cancer.

Similar content being viewed by others

Data availability

All of the WES and RNA-seq data have been deposited in the European Genome-phenome Archive under accession numbers EGAS00001003801 and EGAS00001003802, respectively. Data for Figs. 14 and Extended Data Figs. 310 are available as Source Data. All other data are available from the corresponding author on reasonable request.

Change history

  • 20 December 2019

    This article was amended to correct Extended Data Fig. 9, which was originally incorrect.


  1. Grivennikov, S. I., Greten, F. R. & Karin, M. Immunity, inflammation, and cancer. Cell 140, 883–899 (2010).

    Article  CAS  Google Scholar 

  2. Hunter, P. The inflammation theory of disease. The growing realization that chronic inflammation is crucial in many diseases opens new avenues for treatment. EMBO Rep. 13, 968–970 (2012).

    Article  CAS  Google Scholar 

  3. Nathan, C. & Ding, A. Nonresolving inflammation. Cell 140, 871–882 (2010).

    Article  CAS  Google Scholar 

  4. Jaiswal, S. et al. Age-related clonal hematopoiesis associated with adverse outcomes. N. Engl. J. Med. 371, 2488–2498 (2014).

    Article  Google Scholar 

  5. Martincorena, I. et al. Tumor evolution. High burden and pervasive positive selection of somatic mutations in normal human skin. Science 348, 880–886 (2015).

    CAS  ADS  PubMed  PubMed Central  Google Scholar 

  6. Yokoyama, A. et al. Age-related remodelling of oesophageal epithelia by mutated cancer drivers. Nature 565, 312–317 (2019).

    Article  CAS  ADS  Google Scholar 

  7. Burisch, J., Jess, T., Martinato, M. & Lakatos, P. L. The burden of inflammatory bowel disease in Europe. J. Crohns Colitis 7, 322–337 (2013).

    Article  Google Scholar 

  8. Ungaro, R., Mehandru, S., Allen, P. B., Peyrin-Biroulet, L. & Colombel, J. F. Ulcerative colitis. Lancet 389, 1756–1770 (2017).

    Article  Google Scholar 

  9. Eaden, J. A., Abrams, K. R. & Mayberry, J. F. The risk of colorectal cancer in ulcerative colitis: a meta-analysis. Gut 48, 526–535 (2001).

    Article  CAS  Google Scholar 

  10. Kang, H. & Shibata, D. Direct measurements of human colon crypt stem cell niche genetic fidelity: the role of chance in non-Darwinian mutation selection. Front. Oncol. 3, 264 (2013).

    Article  Google Scholar 

  11. Choi, C. R., Bakir, I. A., Hart, A. L. & Graham, T. A. Clonal evolution of colorectal cancer in IBD. Nat. Rev. Gastroenterol. Hepatol. 14, 218–229 (2017).

    Article  Google Scholar 

  12. Eto, A., Muta, T., Yamazaki, S. & Takeshige, K. Essential roles for NF-κB and a Toll/IL-1 receptor domain-specific signal(s) in the induction of IκB-ζ. Biochem. Biophys. Res. Commun. 301, 495–501 (2003).

    Article  CAS  Google Scholar 

  13. Yamamoto, M. et al. Regulation of Toll/IL-1-receptor-mediated gene expression by the inducible nuclear protein IκBζ. Nature 430, 218–222 (2004).

    Article  CAS  ADS  Google Scholar 

  14. Bruno, M. E. C., Frantz, A. L., Rogier, E. W., Johansen, F. E. & Kaetzel, C. S. Regulation of the polymeric immunoglobulin receptor by the classical and alternative NF-κB pathways in intestinal epithelial cells. Mucosal Immunol. 4, 468–478 (2011).

    Article  CAS  Google Scholar 

  15. Cao, A. T., Yao, S., Gong, B., Elson, C. O. & Cong, Y. Th17 cells upregulate polymeric Ig receptor and intestinal IgA and contribute to intestinal homeostasis. J. Immunol. 189, 4666–4673 (2012).

    Article  CAS  Google Scholar 

  16. Bruno, M. E. et al. Correlation of biomarker expression in colonic mucosa with disease phenotype in Crohn’s disease and ulcerative colitis. Dig. Dis. Sci. 60, 2976–2984 (2015).

    Article  CAS  Google Scholar 

  17. Nakatsuka, Y. et al. Pulmonary Regnase-1 orchestrates the interplay of epithelium and adaptive immune systems to protect against pneumonia. Mucosal Immunol. 11, 1203–1218 (2018).

    Article  CAS  Google Scholar 

  18. Mino, T. et al. Regnase-1 and Roquin regulate a common element in inflammatory mRNAs by spatiotemporally distinct mechanisms. Cell 161, 1058–1073 (2015).

    Article  CAS  Google Scholar 

  19. Iwasaki, H. et al. The IκB kinase complex regulates the stability of cytokine-encoding mRNA induced by TLR-IL-1R by controlling degradation of regnase-1. Nat. Immunol. 12, 1167–1175 (2011).

    Article  CAS  Google Scholar 

  20. Reznik, B., Clement, S. L. & Lykke-Andersen, J. hnRNP F complexes with tristetraprolin and stimulates ARE-mRNA decay. PLoS One 9, e100992 (2014).

    Article  ADS  Google Scholar 

  21. Ramirez-Carrozzi, V. et al. IL-17C regulates the innate immune function of epithelial cells in an autocrine manner. Nat. Immunol. 12, 1159–1166 (2011).

    Article  CAS  Google Scholar 

  22. Robles, A. I. et al. Whole-exome sequencing analyses of inflammatory bowel disease-associated colorectal cancers. Gastroenterology 150, 931–943 (2016).

    Article  CAS  Google Scholar 

  23. Fujita, M. et al. Genomic landscape of colitis-associated cancer indicates the impact of chronic inflammation and its stratification by mutations in the Wnt signaling. Oncotarget 9, 969–981 (2018).

    Article  Google Scholar 

  24. Din, S. et al. Mutational analysis identifies therapeutic biomarkers in inflammatory bowel disease-associated colorectal cancers. Clin. Cancer Res. (2018).

  25. Baker, A. M. et al. Evolutionary history of human colitis-associated colorectal cancer. Gut 68, 985–995 (2019).

    Article  CAS  Google Scholar 

  26. Jostins, L. et al. Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease. Nature 491, 119–124 (2012).

    Article  CAS  Google Scholar 

  27. Liu, J. Z. et al. Association analyses identify 38 susceptibility loci for inflammatory bowel disease and highlight shared genetic risk across populations. Nat. Genet. 47, 979–986 (2015).

    Article  CAS  Google Scholar 

  28. Riddell, R. H. et al. Dysplasia in inflammatory bowel disease: standardized classification with provisional clinical applications. Hum. Pathol. 14, 931–968 (1983).

    Article  CAS  Google Scholar 

  29. Yoshida, K. et al. Frequent pathway mutations of splicing machinery in myelodysplasia. Nature 478, 64–69 (2011).

    Article  CAS  ADS  Google Scholar 

  30. Shiraishi, Y. et al. An empirical Bayesian framework for somatic mutation detection from cancer genome sequencing data. Nucleic Acids Res. 41, e89 (2013).

    Article  CAS  Google Scholar 

  31. Okuma, A. et al. Enhanced apoptosis by disruption of the STAT3-IκB-ζ signaling pathway in epithelial cells induces Sjögren’s syndrome-like autoimmune disease. Immunity 38, 450–460 (2013).

    Article  CAS  Google Scholar 

  32. el Marjou, F. et al. Tissue-specific and inducible Cre-mediated recombination in the gut epithelium. Genesis 39, 186–193 (2004).

    Article  CAS  Google Scholar 

  33. Miyoshi, H. & Stappenbeck, T. S. In vitro expansion and genetic modification of gastrointestinal stem cells in spheroid culture. Nat. Protoc. 8, 2471–2482 (2013).

    Article  CAS  Google Scholar 

  34. Katakura, K. et al. Toll-like receptor 9-induced type I IFN protects mice from experimental colitis. J. Clin. Invest. 115, 695–702 (2005).

    Article  CAS  Google Scholar 

  35. Chen, K. et al. IL-17 Receptor signaling in the lung epithelium is required for mucosal chemokine gradients and pulmonary host defense against K. pneumoniae. Cell Host Microbe 20, 596–605 (2016).

    Article  CAS  Google Scholar 

  36. Johansen, C. et al. IκBζ is a key driver in the development of psoriasis. Proc. Natl Acad. Sci. USA 112, E5825–E5833 (2015).

    Article  CAS  Google Scholar 

  37. Müller, A. et al. IκBζ is a key transcriptional regulator of IL-36-driven psoriasis-related gene expression in keratinocytes. Proc. Natl Acad. Sci. USA 115, 10088–10093 (2018).

    Article  Google Scholar 

  38. Hildebrand, D. G. et al. IκBζ is a transcriptional key regulator of CCL2/MCP-1. J. Immunol. 190, 4812–4820 (2013).

    Article  CAS  Google Scholar 

  39. Goto, N. et al. Distinct roles of Hes1 in normal stem cells and tumor stem-like cells of the intestine. Cancer Res. 77, 3442–3454 (2017).

    Article  CAS  Google Scholar 

  40. Blokzijl, F. et al. Tissue-specific mutation accumulation in human adult stem cells during life. Nature 538, 260–264 (2016).

    Article  CAS  ADS  Google Scholar 

Download references


This work was supported by the Japan Agency for Medical Research and Development (AMED); the Project for Development of Innovative Research on Cancer Therapeutics (JP19cm0106501 to S.Ogawa) and the Core Research for Evolutional Science and Technology (CREST) (JP19gm1110011 to S. Ogawa); the Ministry of Education, Culture, Sports, Science and Technology of Japan; the High Performance Computing Infrastructure System Research Project (hp160219, hp170227, hp180198 and hp190158 to S. Ogawa and S.M.) (this research used computational resources of the K computer provided by the RIKEN Advanced Institute for Computational Science through the HPCI System Research project); the Japan Society for the Promotion of Science (JSPS); Scientific Research on Innovative Areas (JP15H05909 to S. Ogawa and S.M.; JP15H05912 to S.M.; JP26115009 to M.S.) and KAKENHI (JP19H05656 to S. Ogawa; JP15H05707 to S.M.; JP17H04157 to H.S.; JP18H05278 to O.T.); the Ministry of Health, Labour and Welfare of Japan; Health and Labour Sciences Research Grants for research on intractable diseases (Investigation and Research for Intractable Inflammatory Bowel Disease) (H.N.); the Takeda Science Foundation (S. Ogawa, H.M. and T.Y.); the Uehara Memorial Foundation (H.S.); and the Foundation for Promotion of Cancer Research (H.S.). S. Ogawa is a recipient of the JSPS Core-to-Core Program A: Advanced Research Networks. We thank M. Nakazawa, M. Nakamura, T. Shirahari, A. Takatsu and A. Ryu for technical assistance; iLAC for sequencing support; the Centre for Anatomical, Pathological and Forensic Medical Research at Kyoto University Graduate School of Medicine for preparing microscope slides; and all staff at the Endoscopy Unit, Kyoto University Hospital for endoscopic sampling.

Author information

Authors and Affiliations



N.K., K.Y., H. Marusawa, T.C., H.S. and S. Ogawa designed the study. M.U., K. Kawada, S.N., A. Yokoyama, S.Y., M.M., T. Horimatsu, S. Okamoto, H.O., Y. Sakai, H.I. and H.N. provided specimens. T.K., Y.T., T. Sakurai, H.H. and S.H. performed histological analysis. N.K., Y.I., Y.F. and S.K.K. performed sample preparation. M.S., E.S. and T. Sato performed sequencing. N.K., Y.O., Y. Shiozawa, T.Y. and Y.N. performed mutation calling, validated the results and analysed CNAs, mutational signatures and clonal dynamics. N.K., Y. Shiraishi, K.C., H.T. and S.M. performed bioinformatics analysis. N.K., K.A., T. Hirano, Y.K., Y.W., K. Kataoka, M.M.N., A. Yoda, H. Miyoshi, M.M.T., J.O., R.I., Y.U. and O.T. performed in vitro functional analysis. N.K., N.G., A.K., K. Kataoka and T.M. performed in vivo functional analysis. N.K., A. Yokoyama, Y.N., H. Makishima and S.Ogawa prepared the manuscript.

Corresponding author

Correspondence to Seishi Ogawa.

Ethics declarations

Competing interests

The authors declare no competing interests.

Additional information

Peer review information Nature thanks Judy Cho, Ramnik Xavier and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Extended data figures and tables

Extended Data Fig. 1 Study design.

ac, Summary of sampling types, histology of samples, subjects and sequencing platforms for single crypts (a), bulk crypts (b) and colorectal cancers (c). COAD, TCGA Colon Adenocarcinoma data collection; READ, TCGA Rectum Adenocarcinoma data collection. d, Summary of independent clones as determined by PyClone analysis of bulk-crypt samples from patients with UC.

Extended Data Fig. 2 Sampling methods.

a, For preparation of epithelial samples, after treating intestinal mucosa with 20 mM EDTA in PBS at 4 °C for 20 min, the epithelium was dissociated from the lamina propria. Then, a single crypt or epithelium (for bulk crypts) was collected. b, For geographical tracking of clones in a cluster of single crypts in colorectal mucosa from control individuals, acrylic adhesive was put on the mucosal surface, followed by a treatment with 20 mM EDTA in PBS. After peeling off the epithelium upside down, single crypts that were attached to the adhesive were collected one by one under a stereomicroscope and their positions recorded (top). To isolate crypts from patients with UC, after colorectal mucosa was treated with 20 mM EDTA in PBS, a gentle pressure was applied to the whole mucosal tissue from both sides to push up crypts, and each single crypt was isolated in a manner similar to that described above. c, For single-crypt sequencing, genomic DNA was extracted from single crypts by direct cell lysis and heat denaturation and split into two aliquots, each of which was subjected to WGA using Φ29 DNA polymerase. One of the two WGA products was subjected to WES, and the other was stocked for validation.

Extended Data Fig. 3 Mutations detected in single crypts.

a, b, Representative histograms of the VAFs of somatic mutations detected by WES in single crypts from control individuals (10 out of 43; a) and patients with UC (10 out of 58; b). c, Frequency of driver mutations among single crypts from control individuals (n = 43) and patients with UC (n = 58). Genes with a significant difference in mutation frequency between non-UC and UC crypts are indicated by asterisks (two-sided Fisher’s exact test with Benjamini–Hochberg adjustment; q < 0.1). d, The landscape of driver mutations for single crypts (n = 58) from non-dysplastic UC samples. The number of mutations in each single crypt is shown above, and the disease duration and age of subjects are shown below.

Source data

Extended Data Fig. 4 Phylogenetic trees in the colorectal epithelium.

ad, Phylogenetic structure of single crypts clustered in an area of 0.25–4 mm2 of epithelia from two control individuals (an 84-year-old man (CR40; a) and an 88-year-old woman (CR43; b)) and two patients with UC (a 56-year-old man (HCM28; c) and a 42-year-old woman (UC3; d)). Phylogenetic trees of clones (right or bottom) are projected onto the positions of crypts, as indicated in the images (left or top). The colours of the branches in the trees correspond to those of the circles for the positions of crypts. The estimated time of UC onset is indicated on the basis of the mutation rate in non-UC crypts (see Fig. 1a). The estimated age of the most-recent common ancestral crypt is also indicated for patients with UC (c, d). Branches that contain driver mutations are indicated. e, Histograms of the number of mutations (or height) of branch points in phylogenetic trees are plotted for control individuals (n = 3, top) and patients with UC (n = 3, bottom).

Source data

Extended Data Fig. 5 Mutations detected in colorectal epithelium from control individuals and patients with UC.

a, MCF of mutations that were detected with WES in isolated bulk-crypt samples from non-UC (n = 136) and UC (n = 133) colorectal epithelia. Samples belonging to each subject are separated by blank columns. MCFs of driver mutations are indicated by coloured triangles, and disease state by colour, as shown at the top. The colon segment that was sampled, mutation status of driver genes, number of mutations, duration of UC and age of subjects are shown at the bottom. b, c, The average number of mutations (b) and average value of maximum MCFs (c) detected by WES of bulk-crypt samples within each individual is plotted against the duration of UC. Control individuals are plotted at zero on the x axis. Regression lines with (b) or without (c) assuming zero intercept are shown with R2 values. The calculated P value in c represents the significance of the correlation between the duration of UC and the average value of maximum MCFs (F test). d, e, The average number of mutations (d) and average value of maximum MCFs (e) of bulk-crypt samples from caecum to transverse colon (right side) and descending colon to rectum (left side) within the same individual is plotted for patients with UC (n = 22). Two-sided paired t-test.

Source data

Extended Data Fig. 6 Functional analysis of driver genes in UC mucosa.

a, Distribution of driver gene mutations in non-dysplastic UC samples (58 isolated single crypts and 399 bulk crypts, top) and CAC samples (n = 99, bottom). Amino acid sequences of different species around hotspot mutations of HNRNPF are shown. Completely conserved amino acids across all species are indicated by asterisks. b, Expression levels of Nfkbiz in colon epithelial organoids (n = 3 biological replicates) treated as indicated for 1 or 24 h. Data are normalized by the levels of PBS (control) and shown as mean ± s.d. Asterisks indicate P < 0.05 between the indicated treatment and treatment with PBS (two-sided Student's t-test). LTα1β2, lymphotoxin α1/β2; ODN, CpG oligodeoxynucleotides; OSM, oncostatin M. c, Immunoblot analysis of HCT116 cells that express empty vector, Myc-tagged wild-type (WT) ZC3H12A or the indicated ZC3H12A mutants after stimulation with IL-1β for the indicated times, using anti-Myc and β-actin antibodies. d, Immunoblot analysis of ZC3H12A, Flag-tagged dominant-negative BTRC(ΔF) and β-actin in HeLa cells that express doxycycline-inducible BTRC(ΔF) after stimulation with IL-17A or IL-1β for the indicated times with or without doxycycline (Dox). Data are representative of two independent experiments. For gel source data, see Supplementary Fig. 1.

Source data

Extended Data Fig. 7 Clonal expansion in UC rectums.

a, Expansion of clones within the rectum from the remaining four out of the six analysed patients with UC (two are presented in Fig. 2d). All of the representations follow those in Fig. 2d. Driver mutations including those found in the two samples in Fig. 2d are summarized in Supplementary Table 9. b, Area occupied by each clone and total number of mutations estimated by PyClone for each clone detected in the UC rectums. Colours indicate the highest pathological grade within each clone. ch, Phylogenetic trees of representative clones (6 out of 41) that were found in two or more rectum samples surgically obtained from six patients with UC. Imputed clonal structures are depicted in violin plots at the bottom, in which the estimated cellular prevalence of imputed mutational clusters (x axis) are shown as the distribution of posterior probabilities (width of the violin plots) calculated according to a PyClone model. Colours correspond to those in the associated branches of trees. The estimated time of UC onset is indicated on the basis of the mutation rate in non-UC crypts (Fig. 1a). Branches that contain driver mutations are also indicated.

Source data

Extended Data Fig. 8 Effect of Nfkbiz on clonal expansion in a mouse model of chronic DSS-induced colitis.

a, Experimental schedule for induction of colitis in R26LacZ/WTNfkbizWT/WTVil1-creER (control) and R26LacZ/WTNfkbizfl/flVil1-creER (Nfkbiz cKO) mice. Cre-mediated recombination was induced by administration of tamoxifen (TAM), followed by induction of colitis by treatment with DSS. b, e, Images of whole-mount X-gal staining of the large intestine from control (top) and Nfkbiz cKO (bottom) mice after tamoxifen administration without (b) or with (e) subsequent treatment with DSS. c, f, Fraction of LacZ-positive areas in the middle to distal colon before (c) or after (f) induction of colitis with DSS according to genotypes. Two-sided Mann–Whitney U test. d, Density of LacZ-positive areas (number per cm2) having indicated sizes in control and Nfkbiz cKO mice before induction of colitis with DSS. g, Colon length (left) and histological score (right) after chronic DSS-induced colitis for the evaluation of severity of colitis. Two-sided Mann–Whitney U test. h, Relative change in weight of Nfkbiz cKO and control mice during three courses of DSS-induced colitis. Data are shown as mean ± s.d. i, Significant enrichment of NFKBIZ target genes (left) and genes associated with the IL-17 signalling pathway (right) among the downregulated genes in rectum epithelium from Nfkbiz cKO mice compared with control mice four days after the start of treatment with DSS. Data were generated from n = 3 biologically independent mice for both genotypes. Two-sided nominal P values were calculated by GSEA.

Source data

Extended Data Fig. 9 Mutational profiles and CNAs in control individuals and patients with UC.

a, Landscape of driver mutations in CAC samples (n = 99) and dysplastic UC samples (n = 13). Genes with asterisks are drivers in CACs (Methods). CNAs of known oncogenes are depicted only for the 34 CACs that were newly analysed in this study. b, Frequency of driver mutations among clones identified in non-dysplastic samples from patients with UC (n = 183) versus sCRC samples from the Japanese cohort (n = 525). Asterisks indicate q < 0.1 (two-sided Fisher’s exact test with Benjamini–Hochberg adjustment). c, Number (middle) and relative frequency (bottom) of mutations allocated to signatures A and B in samples of single crypts from control individuals (n = 43) and non-dysplastic (n = 241; 58 single crypts and 183 clones), dysplastic (n = 13 clones) and non-hypermutated CAC (n = 92 samples) from patients with UC. Information about disease state, pathology and sample type is indicated at the top. d, Comparison of the number of mutations detected by WES in clones identified in non-dysplastic samples, dysplastic samples and CAC samples without hypermutation from patients with UC. Two-sided Mann–Whitney U test. e, Mutational signatures of colorectal epithelium from control individuals and patients with UC. f, Fraction of signature B mutations in single crypts from control individuals, and clones identified in non-dysplastic (ND), dysplastic (D) and non-hypermutated CAC samples containing ≥ 10 mutations from patients with UC. Two-sided Mann–Whitney U test. g, Box plots of the fractions of genomic regions that contain CNAs in clones identified in non-dysplastic (n = 183), dysplastic (n = 13) and CAC (n = 34) samples from patients with UC. Two-sided Mann–Whitney U test. h, Bottom, colour-gradient maps of CNAs and UPDs as detected by WES data are shown for clones identified in non-dysplastic (n = 183), dysplastic (n = 13) and CAC (n = 34) samples from patients with UC. Top, pathological grade, fractions of genomes that exhibit CNAs and UPDs and TP53 mutation status are also shown. Box plots as in Fig. 4.

Source data

Extended Data Fig. 10 Effect of NFKBIZ knockout in CRC cell lines and an AOM–DSS-induced colorectal tumour model.

a, Experimental strategy for enrichment analysis using CRISPR–Cas9 (Methods). MOI, multiplicity of infection. b, Experimental schedule for induction of CAC in Nfkbizfl/flVil1-cre (Nfkbiz cKO) and Nfkbizfl/fl (control) mice using AOM followed by three cycles of DSS. c, Box plots of tumour numbers relative to tumour size (maximum diameter). Two-sided Mann–Whitney U test. d, Colon length (left) and histological score (right) for the evaluation of inflammation in the AOM–DSS-induced tumour model. No significant difference was observed between Nfkbiz cKO and control mice (two-sided Mann–Whitney U test). e, Relative change in weight of mice during three courses of treatment with DSS in the AOM–DSS-induced tumour model. Data are shown as mean ± s.d. f, Histological images of haematoxylin and eosin (H&E) staining (left), and immunohistochemistry for β-catenin (middle) and Ki-67 (right). Tumours in Nfkbiz cKO and control mice were indistinguishable in terms of histology and immunochemistry. Representative images are shown from n = 3 biologically independent samples for both genotypes. Box plots as in Fig. 4.

Source data

Supplementary information

Supplementary Figures

Supplementary Figure 1: Uncropped scans with size marker indications.

Reporting Summary

Supplementary Tables

This file contains Supplementary Tables 1-13.

Source data

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kakiuchi, N., Yoshida, K., Uchino, M. et al. Frequent mutations that converge on the NFKBIZ pathway in ulcerative colitis. Nature 577, 260–265 (2020).

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI:

This article is cited by


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing