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Wang L, Liang Y, Chen Q, Ahmed N, Wang F, Hu B, Yang P. Identification and Distribution of the Interstitial Cells of Cajal in the Abomasum of Goats. Cell Transplant 2017; 27:335-344. [PMID: 28933185 PMCID: PMC5898686 DOI: 10.1177/0963689717722561] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The interstitial cells of Cajal (ICCs) are regarded as pacemakers and are involved in neurotransmission in the gastrointestinal tract (GIT) of animals. However, limited information is available about the existence of ICCs within the GIT of ruminants. In this study, we investigated the ultrastructural characteristics and distribution of ICCs in goat abomasum using transmission electron microscopy and c-kit immunohistochemistry. Two different kinds of c-kit immunoreactive cells were observed in the abomasum. The first was identified as ICCs, which appeared to be multipolar or bipolar in shape, with some processes. These c-kit immunoreactive cells were deposited in the submucosal layer, myenteric plexus between the circular and longitudinal muscle layers, and within the longitudinal and circular muscle layers of the abomasum. The second type of cell was round in shape and was identified as mast cells, which were located in the submucosal layer as well as in the lamina propria. Ultrastructurally, ICCs were also observed as stellate or spindle-shaped cells, which were consistent in shape with our c-kit immunoreactive cells. In the cytoplasm of ICCs, numerous mitochondria, rough endoplasmic reticulum, and caveolae were detected. ICCs were located in the myenteric plexus between the longitudinal and circular muscle layers (ICC-MY), with the longitudinal and circular muscle layer was replaced as “intramuscular layers” (ICC-IM), and in the submucosal layer (ICC-SM). In addition, we found ICCs surrounding nerve fibers and smooth muscle cells, where they formed heterocellular junctions in the form of close membrane associations or gap junctions and homocellular junctions among the processes of the ICCs. In the current study, we provide the first complete characterization of ICCs within the goat abomasum and propose that ICCs might have a key role in producing contractions in the ruminant stomach for proper absorption of nutrients.
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Affiliation(s)
- Lingling Wang
- 1 College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Yu Liang
- 1 College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Qiusheng Chen
- 1 College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Nisar Ahmed
- 1 College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Feng Wang
- 2 College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Bing Hu
- 3 College of Life Sciences, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Ping Yang
- 1 College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China.,2 College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
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Pathophysiology and Therapeutic Strategies for Symptomatic Uncomplicated Diverticular Disease of the Colon. Dig Dis Sci 2016; 61:673-83. [PMID: 26458921 DOI: 10.1007/s10620-015-3925-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/05/2015] [Indexed: 12/12/2022]
Abstract
Colonic diverticulosis imposes a significant burden on industrialized societies. The current accepted causes of diverticula formation include low fiber content in the western diet with decreased intestinal content and size of the lumen, leading to the transmission of muscular contraction pressure to the wall of the colon, inducing the formation of diverticula usually at the weakest point of the wall where penetration of the blood vessels occurs. Approximately 20 % of the patients with colonic diverticulosis develop abdominal symptoms (i.e., abdominal pain and discomfort, bloating, constipation, and diarrhea), a condition which is defined as symptomatic uncomplicated diverticular disease (SUDD). The pathogenesis of SUDD symptoms remains uncertain and even less is known about how to adequately manage bowel symptoms. Recently, low-grade inflammation, altered intestinal microbiota, visceral hypersensitivity, and abnormal colonic motility have been identified as factors leading to symptom development, thus changing and improving the therapeutic approach. In this review, a comprehensive search of the literature regarding on SUDD pathogenetic hypotheses and pharmacological strategies was carried out. The pathogenesis of SUDD, although not completely clarified, seems to be related to an interaction between colonic microbiota alterations, and immune, enteric nerve, and muscular system dysfunction (Cuomo et al. in United Eur Gastroenterol J 2:413-442, 2014). Greater understanding of the inflammatory pathways and gut microbiota composition in subjects affected by SUDD has increased therapeutic options, including the use of gut-directed antibiotics, mesalazine, and probiotics (Bianchi et al. in Aliment Pharmacol Ther 33:902-910, 2011; Comparato et al. in Dig Dis Sci 52:2934-2941, 2007; Tursi et al. in Aliment Pharmacol Ther 38:741-751, 2013); however, more research is necessary to validate the safety, effectiveness, and cost-effectiveness of these interventions.
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Márquez S, Galotta JM, Gálvez GA, Portiansky E, Barbeito CG. Presence of c-kit positive cells in fetal and adult bovine forestomachs. Biotech Histochem 2014; 89:591-601. [DOI: 10.3109/10520295.2014.919023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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4
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The actions of hyperthermia on the autonomic nervous system: Central and peripheral mechanisms and clinical implications. Auton Neurosci 2012; 168:4-13. [DOI: 10.1016/j.autneu.2012.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 02/21/2012] [Accepted: 02/22/2012] [Indexed: 12/26/2022]
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5
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An immunohistochemical study of S-100 protein in the intestinal tract of Chinese soft-shelled turtle, Pelodiscus sinensis. Res Vet Sci 2011; 91:e16-24. [DOI: 10.1016/j.rvsc.2011.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 01/28/2011] [Accepted: 02/18/2011] [Indexed: 01/17/2023]
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Burke S, Abu-Wasel B, Eid A, Nissan A, Hanani M. Differential effect of hyperthermia on nerves and smooth muscle of the mouse ileum. J Surg Oncol 2011; 103:92-100. [PMID: 20886554 DOI: 10.1002/jso.21746] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND OBJECTIVES Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) gained wide acceptance as the treatment of choice for selected patients with peritoneal surface malignancies. Patients tend to suffer from prolonged ileus following CRS + HIPEC, complicating their recovery. We studied the effects of hyperthermia on the intestine to gain insight into mechanisms of ileus post-HIPEC. METHODS Segments of mouse ileum were incubated at 36°C. Electrical field stimulation (EFS) was applied, stimulating nerves, and the resultant muscle contraction was measured. The response was measured at varying temperatures (38-43°C) at exposure times of up to 120 min. We also stimulated the tissues with 10(-6) M carbachol, a muscarinic receptor agonist, which acts directly on smooth muscle. RESULTS Response to EFS decreased at high temperatures, especially above 41°C. This effect was irreversible for 120 min after decreasing temperature. When stimulating with carbachol, both transient and plateau responses decreased at 43°C (plateau more than transient) but the effect reversed on returning to 36°C. CONCLUSION The irreversible decline in responses to nerve stimulation when exposed to high temperatures was not seen with direct muscle stimulation. This indicates that smooth muscle is resilient and that the main effect of hyperthermia is on nerves. These results have significance for HIPEC.
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Affiliation(s)
- Shoshana Burke
- Laboratory of Experimental Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
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Deng JJ. Acupuncture improves the repair and regeneration of interstitial cells of Cajal in rats after enteroenterostomy. Shijie Huaren Xiaohua Zazhi 2010; 18:3863-3868. [DOI: 10.11569/wcjd.v18.i36.3863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the mechanism by which acupuncture promotes intestinal motility.
METHODS: Thirty Sprague-Dawley rats were randomly divided into blank group, model group (receiving colocolic anastomosis) and acupuncture group. The acupuncture group underwent acupuncture at Zusanli, Sanyinjiao and Taichong daily for three continuous days. After acupuncture treatment, defecation was observed and intestinal propulsive rate was measured. Tissue samples of the colon which was 2 cm below the caecum were taken to observe the ultrastructure of interstitial cells of Cajal (ICC) and the Ache-ICC-SMC network.
RESULTS: In the acupuncture group, the time to first postoperative passage of feces was shortened and intestinal propulsive rate was improved compared with the model group [(2.00 ± 0.47) d vs (2.50 ± 0.53) d, (66.30 ± 4.21)% vs (46.33 ± 5.56)% , both P < 0.05]. Compared with the blank group, the damage of ICC ultrastructure in the model group was more significant while that in the acupuncture group was milder. In the model group, the ENS-ICC-SMC structure was disorganized, and the number of ICC and their fluorescence intensity were greatly decreased compared with the blank group [(18.67 ± 6.11) vs(32.33 ± 5.51), (35.00 ± 9.54) vs (58.67 ± 10.21), both P < 0.05]. In contrast, in the acupuncture group, the damage of the network structure was milder, and the number of ICC and their fluorescence intensity were increased compared with the model group [(30.33 ± 3.21) vs (18.67 ± 6.11), (56.67 ± 9.45) vs (35.00 ± 9.54), both P < 0.05]. Similar results were also obtained for the number of VAChT-positive nerve fibres [(18.67 ± 3.79) vs (20.67 ± 3.21), (20.33 ± 5.13) vs (34.67 ± 6.81), (23.00 ± 4.58) vs (18.67 ± 3.79), (36.00 ± 8.19) vs (20.33 ± 5.13), all P < 0.05].
CONCLUSION: Acupuncture can improve intestinal motility in rats after abdominal operation perhaps by improving the repair and regeneration of ICC.
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Gao XK, Yu Y, Yang Y, Chen J, Wang QM. High concentration of glucose enhances the expression of P2X 7 purine receptor in interstitial cells of Cajal in vitro. Shijie Huaren Xiaohua Zazhi 2010; 18:1211-1216. [DOI: 10.11569/wcjd.v18.i12.1211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of high concentration of glucose on the expression of P2X7 purine receptor in the interstitial cells of Cajal (ICC) in vitro and to explore the mechanisms underlying gastrointestinal dysmotility in diabetic mellitus.
METHODS: ICC were isolated from the intestine of newborn mice by enzymatic dissociation and centrifugation and cultured in an incubator containing 50 mL/L CO2. Cultured ICC were identified by immunofluorescence staining using antibodies directed against c-Kit receptor and P2X7 receptor. ICC were then divided into two groups: control group and experimental group, which were treated with normal and high concentrations of glucose, respectively. After treatment, cell morphology was observed under an inverted light microscope. The expression of P2X7 receptor and c-Kit receptor mRNAs in ICC was detected by reverse transcription-polymerase chain reaction (RT-PCR).
RESULTS: Immunofluorescence staining demonstrated that both P2X7 receptor and c-Kit receptor were positive on ICC cells. After treatment with high concentration of glucose, ICC became bigger, and cell processes became shorter. RT-PCR analysis proved the expression of P2X7 receptor in ICC. The expression level of c-Kit receptor mRNA was weaker and that of P2X7 receptor mRNA was stronger in the experimental group than in the control group.
CONCLUSION: P2X7 receptor is expressed in ICC. Hyperglycemia may alter cell morphology, decrease the expression of c-Kit receptor, enhance the expression of P2X7 receptor in ICC, and thereby play a role in the pathogenesis of gastrointestinal dysmotility in diabetic mellitus.
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PAVONE S, MANDARA MT. A morphological and quantitative immunohistochemical study of the interstitial cells of Cajal in the normal equine intestinal tracts. Equine Vet J 2010; 42:358-66. [DOI: 10.1111/j.2042-3306.2010.00031.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Sumiyama K, Tajiri H, Kato F, Imura T, Ono K, Ikeda K, Imazu H, Gostout CJ. Pilot study for in vivo cellular imaging of the muscularis propria and ex vivo molecular imaging of myenteric neurons (with video). Gastrointest Endosc 2009; 69:1129-34. [PMID: 19215917 DOI: 10.1016/j.gie.2008.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2008] [Accepted: 08/02/2008] [Indexed: 02/08/2023]
Abstract
BACKGROUND It is challenging to optimally sample the muscularis propria endoscopically for the diagnosis of muscle layer diseases, especially for motility disorders resulting from neuroenteric dysfunction. OBJECTIVES Ultramagnification in vivo imaging of the muscularis mucosa and ex vivo identification of myenteric neuronal elements by confocal microscopy. DESIGN Ex vivo and in vivo porcine animal studies. SETTING Short-term study in an animal laboratory. INTERVENTIONS The muscularis propria in the stomach and esophagus was accessed by resecting the mucosal layer with endoscopic submucosal dissection or cap EMR techniques or by creating a submucosal space by the submucosal endoscopy with mucosal flap technique. The muscularis propria was stained with Nissl stains and 2 types of neuronal molecular stains. The muscular layer was imaged with the endocytoscope in vivo. The muscularis stained with molecular-based stains was also evaluated with a confocal microscope. RESULTS Cellular microstructures resembling spindle-shaped smooth muscle cells were visualized by endocytoscopy in vivo. Confocal endoscopic microscopy demonstrated that in vivo topical application of neuronal molecular stains successfully stained the muscularis and specifically highlighted neuron-like cells. LIMITATION Animal model pilot study. CONCLUSIONS In vivo endoscopic histologic evaluation of the muscularis propria is technically feasible and easy. Minimally invasive advanced endoscopic imaging may be useful for the diagnosis and study of neuroenteric disorders at the level of the muscularis propria, avoiding surgical full-thickness tissue sampling.
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Affiliation(s)
- Kazuki Sumiyama
- Department of Endoscopy, Jikei University School of Medicine, Tokyo, Japan.
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11
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Immunohistochemical Localization of Glycogen Phosphorylase Isozymes in the Rat Gastrointestinal Muscle Layers and Enteric Nervous System. Neurochem Res 2008; 34:876-83. [DOI: 10.1007/s11064-008-9834-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Accepted: 08/07/2008] [Indexed: 10/21/2022]
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12
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Villanacci V, Bassotti G, Nascimbeni R, Antonelli E, Cadei M, Fisogni S, Salerni B, Geboes K. Enteric nervous system abnormalities in inflammatory bowel diseases. Neurogastroenterol Motil 2008; 20:1009-16. [PMID: 18492026 DOI: 10.1111/j.1365-2982.2008.01146.x] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Various studies have described abnormalities of the enteric nervous system (ENS) in tissue samples from patients with chronic idiopathic inflammatory bowel diseases (IBD). The distribution of density of the different cell types of the ENS was however not studied in a systematic way. The aim of this study was to examine the density of neurons, enteroglial cells and interstitial cells of Cajal (ICC) in the different plexuses of the ENS in samples from patients with Crohn's disease (CD), ulcerative colitis (UC) and controls. Tissue samples from 16 patients with CD (ileum) and 16 patients with UC obtained in involved and non-involved areas were studied using immunohistochemistry with antibodies directed against neuron-specific enolase, S100, C-Kit and CD3. Sections were analysed blindly by two pathologists and the number of positive cells was counted for each type. Overall, an increase was noted for neuronal cell bodies, enteroglia and ICC in the deep muscular plexus in CD. In uninvolved areas of CD patients, the number of enteroglial cells was decreased. In UC, an increase of ICC in the muscularis propria and enteroglial cells was observed in diseased tissue. The study confirms the presence of abnormalities of the different cells of the ENS in IBD. The presence of lesions in samples from uninvolved areas, such as a reduction of enteroglia, supports a pathogenetic role of the ENS.
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Affiliation(s)
- V Villanacci
- 2nd Department of Pathology, Spedali Civili and University of Brescia, Brescia, Italy
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Immunohistochemical localisation of pre-synaptic muscarinic receptor subtype-2 (M2r) in the enteric nervous system of guinea-pig ileum. Cell Tissue Res 2008; 332:37-48. [DOI: 10.1007/s00441-007-0533-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2007] [Accepted: 10/01/2007] [Indexed: 12/31/2022]
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Abstract
Sprouty-related proteins with an EVH1 domain (Spreds) belong to a new protein family harboring a conserved N-terminal EVH1 domain, which is related to the VASP (vasodilator-stimulated phosphoprotein) EVH1 domain (Enabled/VASP homology 1 domain) and a C-terminal Sprouty-related domain, typical for Sprouty proteins. Spreds were, like Sproutys, initially discovered as inhibitors of the Ras/MAPK pathway, and the SPR (Sprouty-related) domains of both protein families seem to be very important for many protein interactions and cellular processes. VASP was initially characterized as a proline-rich substrate of protein kinases A and G in human platelets and later shown to be a scaffold protein, regulating both signal transduction pathways and the actin filament system. The VASP-EVH1 domain is known to bind specifically to a FP(4) binding motif, which is, for example, present in the focal adhesion proteins vinculin and zyxin. In this review we give a structural and functional overview on these three protein families and ask whether nature plays a modular protein domain puzzle with stable exchangeable elements or if these closely related domains have various functions when pasted in a different protein context.
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Affiliation(s)
- Karin Bundschu
- Abteilung Biochemie und Molekulare Biologie, Universität Ulm, 89081 Ulm, Germany.
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15
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Bassotti G, Villanacci V, Cathomas G, Maurer CA, Fisogni S, Cadei M, Baron L, Morelli A, Valloncini E, Salerni B. Enteric neuropathology of the terminal ileum in patients with intractable slow-transit constipation. Hum Pathol 2006; 37:1252-8. [PMID: 16949932 DOI: 10.1016/j.humpath.2006.04.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2006] [Revised: 04/14/2006] [Accepted: 04/26/2006] [Indexed: 02/08/2023]
Abstract
Slow-transit constipation is usually considered a colonic motor disorder. However, there is some evidence that abnormalities may be present in locations other than the colon. In particular, several studies have reported abnormal motor activity of the small bowel in these patients. We evaluated the neuropathological aspects of the terminal ileum in patients with slow-transit constipation to see whether abnormalities are present that may explain an abnormal motility of the small intestine. Specimens of the terminal ileum were obtained from 16 female patients (age range, 42-76 years) with slow-transit constipation undergoing surgery for intractable symptoms. Fifteen age- and sex-matched controls were used for comparison. Histologic and immunohistochemical evaluation of the myenteric plexus and the smooth muscle of the proximal ileal resection margin was carried out by means of hematoxylin and eosin, trichrome and periodic acid-Schiff stain, neuron-specific enolase, S-100, CD117, CD34, anti-alpha-actin, desmin, and vimentin antibodies. The patient group displayed a significantly reduced number of glial cells, compared with controls, in both the submucosal and the myenteric plexus. Only 1 of the 3 populations of interstitial cells of Cajal (that associated with the deep muscular plexus) was decreased in patients. No differences were found between patients and controls concerning ganglia neurons, fibroblast-like cells, enteric neurons, apoptotic phenomena, and smooth muscle. Patients with slow-transit constipation display neuropathological abnormalities of the terminal ileum to a lesser extent than those we previously found in the colon, which might explain the abnormal motor aspects sometimes found in these patients.
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Affiliation(s)
- Gabrio Bassotti
- Department of Clinical and Experimental Medicine, Clinic of Gastroenterology and Hepatology, University of Perugia, Via Enrico Dal Pozzo, Padiglione W, 06100 Perugia, Italy.
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Márquez SG, Galotta JM, Portiansky EL, Barbeito CG. Characterization of Interstitial Cells of Cajal in Bowel of Cattle (Bos taurus). Vet Res Commun 2006; 30:221-9. [PMID: 16437297 DOI: 10.1007/s11259-006-3216-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2004] [Indexed: 11/29/2022]
Abstract
Interstitial cells of Cajal (ICC) have been described in the gastrointestinal tract of different mammals including humans, horses, pigs, rats, dogs, mice and guinea-pigs. In the present study, ICC were identified in the jejunum of Bos taurus using polyclonal anti-c-Kit antibodies in immunohistochemical assays. Vimentin and desmin intermediate filaments were also determined using monoclonal antibodies. ICC were found in the tunica muscularis either in a palisade distribution pattern between the outer longitudinal and the inner circular layers (ICC-MP) or freely distributed in clusters in the longitudinal layer (ICC-LM). Morphometric studies determined that ICC have a fusiform shape presenting cytoplasmic prolongations. ICC were positive to c-Kit and vimentin antigens but negative to desmin. We have observed and described for the first time the presence of ICC in a ruminant. As observed in the aforementioned mammals, bovine ICC were associated with the myenteric plexus. Nevertheless, the presence of widespread ICC in the longitudinal muscular layer of the jejunum differs from previously described studies of other mammals.
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Affiliation(s)
- S G Márquez
- Ciclo Bá sico Común, Departamento de Biología, Universidad de Buenos Aires, Buenos Aires
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Kubota M, Kanda E, Ida K, Sakakihara Y, Hayashi M. Severe gastrointestinal dysmotility in a patient with congenital myopathy: causal relationship to decrease of interstitial cells of Cajal. Brain Dev 2005; 27:447-50. [PMID: 16122635 DOI: 10.1016/j.braindev.2004.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2004] [Revised: 10/13/2004] [Accepted: 10/15/2004] [Indexed: 10/26/2022]
Abstract
Interstitial cells of Cajal (ICC) are known to be essential regulators of gastrointestinal (GI) motility. Here, we report the clinical course and abnormalities of intestinal ICC distribution in a 5-year-old patient with congenital fiber type disproportion myopathy who demonstrated long-term GI dismotility. Full thickness biopsies of the small intestine and colon showed a normal enteric muscle layer and myenteric plexus. However, the density of ICC was strikingly decreased around the myenteric plexus compared to that in autopsied cases without GI tract disease. These findings suggest that a decline in ICC may contribute to disturbed GI motility in our patient with congenital myopathy.
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Affiliation(s)
- Masaya Kubota
- Department of Pediatrics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
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Li CX, Liu BH, Tong WD, Zhang LY, Jiang YP. Dissociation, culture and morphologic changes of interstitial cells of Cajal in vitro. World J Gastroenterol 2005; 11:2838-40. [PMID: 15884135 PMCID: PMC4305929 DOI: 10.3748/wjg.v11.i18.2838] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the method of dissociation, culture and investigate its morphologic changes in vitro of interstitial cells of Cajal (ICC).
METHODS: Enzymatic digestion and Ficoll density centrifu-gation were used to dissociate ICC from the ileal segment of mice. Factors including contamination, Ca2+, Mg2+ and collagenase, and stem cell factor, etc., were investigated. ACK2, the antibody of c-kit, was used to identify the cultured ICC. Both light microscope and fluorescence microscope were used to observe the changes of ICC in vitro.
RESULTS: The method for dissociation and culture of ICC in vitro was successfully established. After 24 h, cultured ICC exhibited a few axis-cylinders, and longer axis-cylinders were observed to form synapse of each other after 3 d. More widespread connections formed within 7 d in vitro. The changes of its morphologic character were obvious within 7 d; however, there were no obvious morphologic changes after 30 d.
CONCLUSION: Many factors can influence the dissociation and culture of ICC.
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Affiliation(s)
- Chun-Xue Li
- Department of General Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
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Hanani M, Farrugia G, Komuro T. Intercellular coupling of interstitial cells of cajal in the digestive tract. ACTA ACUST UNITED AC 2005; 242:249-82. [PMID: 15598471 DOI: 10.1016/s0074-7696(04)42006-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Interstitial cells of Cajal (ICC) are essential for the normal function of the digestive tract, both as pacemakers and as intermediates between nerves and smooth muscle cells. To perform their functions ICC must be electrically coupled both among themselves and to the muscle layers. This review focuses on the role gap junctions play in coupling ICC to ICC, providing a summary of the published literature as well as a critical appraisal of the data. Most of the experimental evidence for gap junction coupling of ICC networks is indirect, and consists of the ultrastructural observation of gap junctions. Dye coupling studies provide consistent support for the role of gap junctions among ICC of certain types. Physiological evidence in support of this role is scarce. The nature of ICC to smooth muscle coupling is even less certain.
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Affiliation(s)
- Menachem Hanani
- Laboratory of Experimental Surgery, Hebrew University-Hadassah Medical School and Hadassah University Hospital, Mount Scopus, Jerusalem 91240, Israel
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King SK, Sutcliffe JR, Hutson JM, Southwell BR. Paediatric constipation for adult surgeons - article 2: new microscopic abnormalities and therapies. ANZ J Surg 2005; 74:890-4. [PMID: 15456440 DOI: 10.1111/j.1445-1433.2004.03202.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chronic constipation is a common condition in both adults and children. Children with chronic constipation frequently have symptoms that continue into adulthood. In the second part of the review we describe advances in the identification of abnormalities in the control of motility. The role of neurotransmitters in both paediatric and adult constipation is examined and the radical rethink of colonic dysmotility caused by the re-emergence of interstitial cells of Cajal is discussed. The recognition of chronic constipation as an heterogenous condition has led to the introduction of new therapies. Antegrade washouts through appendix stomas and an exciting new treatment with electrical interferential therapy may, in the future, result in a less invasive approach to the management of chronic constipation. An improved understanding of the assessment and management of chronic constipation in childhood is also likely to reduce the frequency and morbidity of chronic constipation in adults.
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Affiliation(s)
- Sebastian K King
- Department of General Surgery, Royal Children's Hospital, Parkville, Victoria, Australia
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Blyweert W, Aa F, Ost D, Stagnaro M, Ridder D. Interstitial cells of the bladder: the missing link? BJOG 2004; 111:57-60. [PMID: 15663383 DOI: 10.1111/j.1471-0528.2004.00469.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wim Blyweert
- Department of Urology, University Hospital Gasthuisberg, Leuven, Belgium
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Yang M, Fang DC, Li QW, Sun NX, Long QL, Sui JF, Gan L. Effects of gastric pacing on gastric emptying and plasma motilin. World J Gastroenterol 2004; 10:419-23. [PMID: 14760770 PMCID: PMC4724923 DOI: 10.3748/wjg.v10.i3.419] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM: To investigate the effects of gastric pacing on gastric emptying and plasma motilin level in a canine model of gastric motility disorders and the correlation between gastric emptying and plasma motilin level.
METHODS: Ten healthy Mongrel dogs were divided into: experimental group of six dogs and control group of four dogs. A model of gastric motility disorders was established in the experimental group undergone truncal vagotomy combined with injection of glucagon. Gastric half-emptying time (GEt1/2) was monitored with single photon emission computerized tomography (SPECT), and the half-solid test meal was labeled with an isotope 99mTc sulfur colloid. Plasma motilin concentration was measured with radioimmunoassay (RIA) kit. Surface gastric pacing at 1.1-1.2 times the intrinsic slow-wave frequency and a superimposed series of high frequency pulses (10-30 Hz) was performed for 45 min daily for a month in conscious dogs.
RESULTS: After surgery, GEt1/2 in dogs undergone truncal vagotomy was increased significantly from 56.35 ± 2.99 min to 79.42 ± 1.91 min (P < 0.001), but surface gastric pacing markedly accelerated gastric emptying and significantly decreased GEt1/2 to 64.94 ± 1.75 min (P < 0.001) in animals undergone vagotomy. There was a significant increase of plasma level of motilin at the phase of IMCIII (interdigestive myoelectrical complex, IMCIII) in the dogs undergone bilateral truncal vagotomy (baseline vs vagotomy, 184.29 ± 9.81 pg/ml vs 242.09 ± 17.22 pg/ml; P < 0.01). But plasma motilin concentration (212.55 ± 11.20 pg/ml; P < 0.02) was decreased significantly after a long-term treatment with gastric pacing. Before gastric pacing, GEt1/2 and plasma motilin concentration of the dogs undergone vagotomy showed a positive correlation (r = 0.867, P < 0.01), but after a long-term gastric pacing, GEt1/2 and motilin level showed a negative correlation (r = -0.733, P < 0.04).
CONCLUSION: Surface gastric pacing with optimal pacing parameters can improve gastric emptying parameters and significantly accelerate gastric emptying and can resume or alter motor function in a canine model of motility disorders. Gastric emptying is correlated well with plasma motilin level before and after pacing, which suggests that motilin can modulate the mechanism of gastric pacing by altering gastric motility.
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Affiliation(s)
- Min Yang
- PLA, Research and Clinical Center for Gastroenterology, Southwest Hospital, Chongqing 400038, China
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Strege PR, Ou Y, Sha L, Rich A, Gibbons SJ, Szurszewski JH, Sarr MG, Farrugia G. Sodium current in human intestinal interstitial cells of Cajal. Am J Physiol Gastrointest Liver Physiol 2003; 285:G1111-21. [PMID: 12893628 DOI: 10.1152/ajpgi.00152.2003] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Interstitial cells of Cajal (ICC) generate the electrical slow wave required for normal gastrointestinal motility. The ionic conductances expressed in human intestinal ICC are unknown. The aim of this study was to determine expression of a Na+ current in human intestinal ICC and to determine the effects of the Na+ current on the slow wave. Visually identified, freshly dissociated, single ICC were verified by the presence of c-kit mRNA by using single-cell RT-PCR. Standard whole cell currents were recorded from patch-clamped ICC held at -100 mV between pulse protocols. A Na+ current was identified in human intestinal ICC. The current activated at -55 mV and peaked at -30 mV. Extracellular N-methyl-d-glucamine abolished and QX-314 (500 microM) blocked the Na+ current, but nifedipine and Ni2+ did not. The Na+ current was activated by shear stress. Single-cell RT-PCR detected mRNA for the Na+ alpha-subunit SCN5A in single human intestinal ICC. Lidocaine (200 microm) and QX-314 (500 microM) decreased slow wave frequency, and stretch increased slow wave frequency. A mechanosensitive Na+ channel current is present in human intestinal ICC and appears to play a role in the control of intestinal motor function.
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Affiliation(s)
- Peter R Strege
- Enteric Neuroscience Program, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA
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N/A. N/A. Shijie Huaren Xiaohua Zazhi 2003; 11:1732-1735. [DOI: 10.11569/wcjd.v11.i11.1732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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25
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Feldstein AE, Miller SM, El-Youssef M, Rodeberg D, Lindor NM, Burgart LJ, Szurszewski JH, Farrugia G. Chronic intestinal pseudoobstruction associated with altered interstitial cells of cajal networks. J Pediatr Gastroenterol Nutr 2003; 36:492-7. [PMID: 12658043 DOI: 10.1097/00005176-200304000-00016] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Ariel E Feldstein
- Division of Gastroenterology and Hepatology, Department of Pediatrics, Mayo Medical School, Mayo Foundation and Clinic, 200 First Street SW, Rochester, MN 55905, U.S.A
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Rumessen JJ, Vanderwinden JM. Interstitial Cells in the Musculature of the Gastrointestinal Tract: Cajal and Beyond. ACTA ACUST UNITED AC 2003; 229:115-208. [PMID: 14669956 DOI: 10.1016/s0074-7696(03)29004-5] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Expression of the receptor tyrosine kinase KIT on cells referred to as interstitial cells of Cajal (ICC) has been instrumental during the past decade in the tremendous interest in cells in the interstitium of the smooth muscle layers of the digestive tract. ICC generate the pacemaker component (electrical slow waves of depolarization) of the smooth musculature and are involved in neurotransmission. By integration of ICC functions, substantial progress has been made in our understanding of the neuromuscular control of gastrointestinal motility, opening novel therapeutic perspectives. In this article, the ultrastructure and light microscopic morphology, as well as the functions and the development of ICC and of neighboring fibroblast-like cells (FLC), are critically reviewed. Directions for future research are considered and a unifying concept of mesenchymal cells, either KIT positive (the "ICC") or KIT negative "non-Cajal" (including the FLC and possibly also other cell types) cell types in the interstitium of the smooth musculature of the gastrointestinal tract, is proposed. Furthermore, evidence is accumulating to suggest that, as postulated by Santiago Ramon y Cajal, the concept of interstitial cells is not likely to be restricted to the gastrointestinal musculature.
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Affiliation(s)
- Jüri J Rumessen
- Department of Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark
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27
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Yoo SY, Jung SH, Eom M, Kim IH, Han A. Delayed maturation of interstitial cells of Cajal in meconium obstruction. J Pediatr Surg 2002; 37:1758-61. [PMID: 12483650 DOI: 10.1053/jpsu.2002.36715] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND/PURPOSE The etiology of meconium obstruction without cystic fibrosis is unclear. Interstitial cells of Cajal (ICC) function as pacemakers in gut motility and may play a role in the pathophysiology of the disease. METHODS The ICC were examined by immunohistochemical staining with anti-c-kit antibody in the bowel walls of 6 neonates who had meconium obstruction without cystic fibrosis, and the results were compared with specimens from normal neonates (n = 2). RESULTS Six patients underwent ileostomy between 2 and 15 days after birth, and 5 of them presented with microcolon. Ganglion cells were present in the ileum and colon. Whereas ICC were evenly distributed in the control specimens, they were not seen at the time of ileostomy in the colons of 2 patients, and the other 4 showed scanty distribution in muscle layers. However, ileum showed normal distribution of ICC in all patients. The ileostomies were closed between 39 and 104 days of age, and the ICC distribution was changed to a normal pattern in the colons of all 6 patients. Their bowel movements were restored to normal after closure. CONCLUSION The findings of this study suggest that delayed maturity of ICC may be a cause of meconium obstruction without cystic fibrosis.
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Affiliation(s)
- Soo-Young Yoo
- Division of Pediatric Surgery and the Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Korea
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