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Understanding the Biology of Human Interstitial Cells of Cajal in Gastrointestinal Motility
Open accessAbstract
Millions of patients worldwide suffer from gastrointestinal (GI) motility disorders such as gastroparesis. These disorders typically include debilitating symptoms, such as chronic nausea and vomiting. As no cures are currently available, clinical care is limited to symptom management, while the underlying causes of impaired GI motility remain unaddressed. The efficient movement of contents through the GI tract is facilitated by peristalsis. These rhythmic slow waves of GI muscle contraction are mediated by several cell types, including smooth muscle cells, enteric neurons, telocytes, and specialised gut pacemaker cells called interstitial cells of Cajal (ICC). As ICC dysfunction or loss has been implicated in several GI motility disorders, ICC represent a potentially valuable therapeutic target. Due to their availability, murine ICC have been extensively studied at the molecular level using both normal and diseased GI tissue. In contrast, relatively little is known about the biology of human ICC or their involvement in GI disease pathogenesis. Here, we demonstrate human gastric tissue as a source of primary human cells with ICC phenotype. Further characterisation of these cells will provide new insights into human GI biology, with the potential for developing novel therapies to address the fundamental causes of GI dysmotility.
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“These cells act as gastrointestinal pacemakers, coordinating the rhythmic contractions necessary for the transit of gastric contents [50, 51].”
From Diabetic gastroparesis: pathophysiology and impact on insulin timing choices (2026) · cites this paper as [50]
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“The proliferation of interstitial cells of Cajal (ICC) is regulated by c-Kit and SCF, which are closely related to gastrointestinal motility (46, 47).”
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“Sanders et al. described that ICs could be a pacemaker region in the gastrointestinal tract [97] located between nerve endings and smooth muscle cells [98].”
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“Rhythmic slow waves of gastrointestinal muscle contraction are mediated by a variety of cell types, including smooth muscle cells, enteric neurons, telocytes, and ICC [29].”
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“A possible explanation for the lack of difference in stricture motility among different histopathological subtypes could be a decrease of as well interstitial cells of Cajal 22 as telocytes 23 (involved in gastrointestinal motility 24 ).”
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“These tumors originate from interstitial cells of Cajal (ICCs), which are present throughout the GI tract and play a crucial role in gastrointestinal motility by coordinating peristaltic movements, functioning as specialized pacemaker cells of the GI system [2, 4].”
Bai, X., Xu, L., Wang, K., Chen, L., Bai, T., Li, P., Chu, W., & Song, C. (2025) · Probiotics and Antimicrobial Proteins · doi:10.1007/s12602-025-10732-x · Cited by 3
Stoppa, E., Soares, G., Buranello, L. P., Portela, L. M. F., Justulin, L. A., Américo, M., Stasi, L. D. D., & Miranda, J. R. D. A. (2024) · Brazilian Journal of Pharmaceutical Sciences · doi:10.1590/s2175-97902024e23717 · Cited by 3
Qiu, W., Yin, J., Liang, H., Shi, Q., Liu, C., Zhang, L., Bai, G., Chen, G., & Xiong, L. (2024) · Frontiers in Oncology · doi:10.3389/fonc.2024.1296445 · Cited by 3
Zhang, S., Luo, S., Zhang, H., & Xiao, Q. (2025) · International Journal of Biological Macromolecules · doi:10.1016/j.ijbiomac.2025.143598 · Cited by 3
Yu, H., Liu, Y., Chu, M., Si, Y., Ye, Y., Ge, T., Zhao, H., & Zhang, H. (2020) · Microscopy and Microanalysis · doi:10.1017/s1431927620024861 · Cited by 3
“It has also been demonstrated that c-Kit/SCF signaling is necessary for the development, differentiation, and phenotype maintenance of ICC (Foong et al., 2020).”
BackgroundWu, Y., Tian, X., Gao, L., & Gao, L. (2022) · Medicine International · doi:10.3892/mi.2022.38 · Cited by 3
An, Y., Hu, S. S., Zhang, Y., Song, Z., Li, R., Li, Y., Li, Y., Ren, W., & Wan, P. (2023) · Brain and Behavior · doi:10.1002/brb3.3071 · Cited by 3
“…of gastrointestinal slow-wave potentials, and they are mainly involved in the regulation of basic gastrointestinal electrical rhythms and neurotransmitter signaling, regulating gastrointestinal motility patterns (Daniel, 2010; Foong et al., 2020; Singh et al., 2021; Yadak et al., 2019).”
BackgroundHernández, D. B. P., Ovalle, L. F. P., Valenzuela, L. M. M., & Mejía, A. C. (2023) · Revista Colombiana de Gastroenterología · doi:10.22516/25007440.997 · Cited by 3
Emodin repairs interstitial cells of Cajal damaged by cholelithiasis in the gallbladder
Huang, Z., & Qiu, H. (2024) · Frontiers in Pharmacology · doi:10.3389/fphar.2024.1424400 · Cited by 3
Advances in the study of polysaccharides from Anemarrhena asphodeloides Bge.: A review.
An, H., Lin, B.-F., Huang, F., & Wang, N.-N. (2024) · International Journal of Biological Macromolecules · doi:10.1016/j.ijbiomac.2024.136999 · Cited by 5
GIST and Ghrelin: To Be or Not to Be?
Spiridon, I. A., Ciobanu, D. G. A., Giuşcă, S. E., Ferariu, D., Pleşcă, I., & Căruntu, I.-D. (2021) · Diagnostics · doi:10.3390/diagnostics11081361 · Cited by 3
Opioid-Induced Constipation: Mechanistic Insights, Experimental Models, and Future Perspectives
Lin, Y., Lu, P., Ding, Q., Tao, X., Tan, Q., & Liu, M. H. (2026) · Biomedicines · doi:10.3390/biomedicines14050995 · Cited by 2
“Beyond peripheral intestinal mechanisms, both the central nervous system (CNS) and interstitial cells of Cajal (ICCs), which serve as the intestinal pacemakers, participate in opioid-mediated inhibition of gut function [11,12].”
Evolution of Esophageal Stricture Treatment by Use of Stents in Benign and Malignant Conditions
Noor, H., Sabău, D., Coțe, A., Mihetiu, A. F., Pirvut, V., Mălinescu, B., & Bratu, D. G. (2024) · Pharmacophore · doi:10.51847/ah7qo6lmzd · Cited by 2
Intracystic gastrointestinal stromal tumor developed in the round ligament of the liver
Kataoka, N., Oura, S., & Furuta, A. (2024) · Radiology Case Reports · doi:10.1016/j.radcr.2024.04.067 · Cited by 2
“ICCs are regarded as the pacemakers of the GI tract [6] , being consistent with the fact that GISTs often occur in organs with high https://doi.org/10.1016/j.radcr. motility in the gastrointestinal tract, e.g., stomach and duodenum.”
BackgroundInfluentialGastroparesis and Cancer-Related Gastroparesis in Palliative Care Patients
Davis, M. P., Soni, K., & Strobel, S. D. (2024) · Springer eBooks · doi:10.1007/978-3-319-31738-0_114-2 · Cited by 2
Perioperative Gastrointestinal Myoelectric Activity Measurement Using Wireless External Patches
Salimi‐Jazi, F., Thomas, A.-L. A., Wood, L. S. Y., Rafeeqi, T. A., Axelrod, S., Navalgund, A. R., Axelrod, L. A., & Dunn, J. (2024) · Journal of Surgical Research · doi:10.1016/j.jss.2024.07.037 · Cited by 2
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Vomiting and Gastric Motility in Early Brain Damaged Children With Congenital Zika Syndrome
de Paula, G. L., da Silva, G. A. P., Silva, E. J. D. C. E., Lins, M. D. G. M., Martins, O. S. D. S., Oliveira, D. M. D. S., Ferreira, E. D. S., & Antunes, M. M. D. C. (2022) · Journal of Pediatric Gastroenterology and Nutrition · doi:10.1097/mpg.0000000000003504 · Cited by 2
“Thus, the absence, decrease, or dysfunction of ICCs can lead to dysrhythmias and gastroparesis (45,46).”
BackgroundMethodVarvoglis, D. N., & Farrell, T. M. (2022) · Journal of Laparoendoscopic & Advanced Surgical Techniques · doi:10.1089/lap.2022.0342 · Cited by 2
Wang, Y., Wang, X., Qian, Y., Sun, M., Yang, H., Su, L., & Yan, S. (2025) · The Journal of Nutritional Biochemistry · doi:10.1016/j.jnutbio.2025.110013 · Cited by 2
RetractedИНТЕРСТИЦИАЛЬНЫЕ КЛЕТКИ КАХАЛЯ: КАЛЬЦИЙ-ОПОСРЕДОВАННЫЕ МЕХАНИЗМЫ РЕГУЛЯЦИИ ФУНКЦИЙ
Енгенов, Н. М. (2021) · Университетская клиника · doi:10.26435/uc.v0i1(38).679 · Cited by 1
Fišere, I., Edelmers, E., Svirskis, Š., & Groma, V. (2025) · Cells · doi:10.3390/cells14070550
Zhang, L., Song, Z., Huang, X., Jiang, B., Shen, Y., Li, X., Jiang, X., Wan, J., Xu, Q., Liu, Q., et al. (2025) · Journal of Ethnopharmacology · doi:10.1016/j.jep.2025.120128 · Cited by 1
Xiao, J., Gao, B., Xiao, Y., & Liu, X. (2025) · Molecular and Cellular Biology · doi:10.1080/10985549.2025.2532581 · Cited by 1
“47 Additionally, it has been shown that hyperglycemia in DM patients leads to changes in the internal and external environments of the ICC, inducing cellular dysfunction and disrupting its function in relation to intestinal smooth muscle.”
SOP: Gastrale Elektrostimulation
Gundling, F., & Pehl, C. (2025) · Gastroenterologie up2date · doi:10.1055/a-2398-7095 · Cited by 1
Choi, N. R., Ko, S., Choi, W.-G., Jung, D.-H., Kim, S. C., Lim, D. W., Kim, Y. T., Woo, J., Park, J.-W., & Kim, B. J. (2025) · Frontiers in Pharmacology · doi:10.3389/fphar.2025.1639592 · Cited by 1
Ding, F., Guo, R., Chen, F., Liu, L., Cui, Z.-Y., Wang, Y., Zhao, G., & HU, H. X. (2023) · World Journal of Gastrointestinal Surgery · doi:10.4240/wjgs.v15.i6.1068 · Cited by 1
Pathogenetic Mechanisms of Peristalsis Disorders in Chronic Constipation
Шевченко, Т. І., Сергеевич, Ш. Д., Abramyan, A. A., & Grekov, I. S. (2024) · I P Pavlov Russian Medical Biological Herald · doi:10.17816/pavlovj321316 · Cited by 1
Zhu, Y., Zhang, R., Zhang, S., & Hu, H.-J. (2024) · Discover Oncology · doi:10.1007/s12672-024-01372-8 · Cited by 1
Liu, Y., Fu, B., He, Q., Bai, X., & Fan, Y. (2025) · Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease · doi:10.1016/j.bbadis.2025.167689 · Cited by 1
Huang, Z.-P., Wang, K., Qiu, H., He, J.-W., Kong, L.-W., Bai, M., & Cheng, Y.-X. (2022) · Journal of Molecular Histology · doi:10.1007/s10735-022-10074-w · Cited by 1
“ICCs generate and propagate low waves in the alimentary tract (Foong et al. 2020).”
BackgroundRelieving Effect of Naringenin on Constipation in Mice and Its Effect on Intestinal Flora in Mice
Zhu, X., Liu, X., & Liu, Z. (2023) · Indian Journal of Pharmaceutical Sciences · doi:10.36468/pharmaceutical-sciences.1066 · Cited by 1
“Tryptophan Hydroxylase 1 (TPH1) is a rate-limiting enzyme in 5-HT synthesis[13-15].”
BackgroundLi, J., Fu, Y., Wang, Y., Zheng, Y., & Li, Y. (2024) · Preprints.org · doi:10.20944/preprints202401.0014.v1 · Cited by 1
Diabetic gastroparesis: pathophysiology and impact on insulin timing choices
Galeano, F., Tumminia, A., Oteri, V., Le Moli, R., Piticchio, T., Scilletta, S., Di Marco, M., Di Pino, A., & Frasca, F. (2026) · Endocrine · doi:10.1007/s12020-026-04693-6
“These cells act as gastrointestinal pacemakers, coordinating the rhythmic contractions necessary for the transit of gastric contents [50, 51].”
Metadata
- Authors
- Foong, D., Zhou, J., Zarrouk, A., Ho, V., & O’Connor, M. D.
- Affiliations
- Western Sydney University (AU)
- Campbelltown Private Hospital, Campbelltown, NSW 2560, Australia
- Corresponding author
- O’Connor, Michael D.
- Venue
- International Journal of Molecular Sciences
- Publisher
- MDPI AG
- Published
- 2020-06-25
- Volume
- 21
- Issue
- 12
- Pages
- 4540
- ISSN
- 1422-0067 (ISSN-L)
- PMC
- PMC7352366
- OpenAlex
- W3037610538
- Cited by
- 127
- References
- 112
- Citations by year
- 2026: 14 · 2025: 30 · 2024: 30 · 2023: 22 · 2022: 20 · 2021: 10 · 2020: 1
- FWCI
- 2.30
- Type
- journal article
- Language
- en
- Open access
- gold
- dx.doi.org
- Licence
- Locations
- International Journal of Molecular Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- University of Western Sydney (N/A)
- Australian Rotary Health (N/A)
- Topics
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
- Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal Tumor Research and Treatment
- Keywords
- interstitial cells of Cajal, gastrointestinal motility, gastroparesis, peristalsis, slow waves, gastric smooth muscle, primary human cells, gastrointestinal motility disorders, therapeutic target
- MeSH terms
- Gastrointestinal Diseases, Gastrointestinal Motility, Humans, Intestine, Small, Peristalsis, Stomach, Myocytes, Smooth Muscle, Gastrointestinal Tract, Interstitial Cells of Cajal
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