1
|
Expression of Cell Cycle Markers and Proliferation Factors during Human Eye Embryogenesis and Tumorigenesis. Int J Mol Sci 2022; 23:ijms23169421. [PMID: 36012688 PMCID: PMC9409163 DOI: 10.3390/ijms23169421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/09/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
The expression pattern of the markers p19, Ki-67, MSX1, MSX2, PDL1, pRB, and CYCLINA2 was quantitatively and semiquantitatively analyzed in histologic sections of the developing and postnatal human eye at week 8, in retinoblastoma, and in various uveal melanomas post hoc studies by double immunofluorescence. The p19 immunoreactivity characterized retinal and/or choroidal cells in healthy and tumor tissues: expression was lower in the postnatal retina than in the developing retina and retinoblastoma, whereas it was high in epithelioid melanomas. Ki67 expression was high in the developing eye, retinoblastoma, and choroidal melanomas. MSX1 and MSX2 expression was similar in the developing eye and retinoblastoma, whereas it was absent in the postnatal eye. Their different expression was evident between epithelioid and myxoid melanomas. Similarly, PDL1 was absent in epithelioid melanomas, whereas it was highly expressed in developing and tumor tissues. Expression of pRB and CYCA2 was characteristic of developing and tumorous eye samples but not of the healthy postnatal eye. The observed expression differences of the analyzed markers correlate with the origin and stage of cell differentiation of the tissue samples. The fine balance of expression could play a role in both human eye development and ocular tumorigenesis. Therefore, understanding their relationship and interplay could open new avenues for potential therapeutic interventions and a better understanding of the mechanisms underlying the developmental plasticity of the eye and the development of neoplasms.
Collapse
|
2
|
Mousavi Jam SA, Talebi M, Alipour B, Khosroushahi AY. The therapeutic effect of potentially probiotic Lactobacillus paracasei on dimethylhydrazine induced colorectal cancer in rats. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
3
|
Freytag JO, Queiroz MR, Govoni VM, Pereira IVA, Pulz LH, de Francisco Strefezzi R, Queiroga FL, Cogliati B. Prognostic value of immunohistochemical markers in canine cutaneous mast cell tumours: A systematic review and meta-analysis. Vet Comp Oncol 2021; 19:529-540. [PMID: 33724647 DOI: 10.1111/vco.12692] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 02/26/2021] [Accepted: 03/13/2021] [Indexed: 12/29/2022]
Abstract
Histological grading systems remain cornerstones in the prognosis of canine cutaneous mast cell tumours (MCTs), but the distinct biological behaviour of each tumour often necessitates the use of complementary markers. Although a plethora of immunohistochemical markers have been proposed as prognostic factors, few are presently applied in routine diagnosis. This systematic review and meta-analysis was designed to establish which immunohistochemical markers have verifiable prognostic value for cutaneous MCTs in dogs. A Boolean search of five databases identified 200 articles for screening, of which 73 were selected for full-text assessment and 24 ultimately included in the systematic review. Odds Ratio (OR) was adopted as the summary measure for subsequent meta-analysis but only 15 articles, relating to the immunomarkers Ki-67 (9), KIT (5), and BAX (2), provided either a value for OR or sufficient data to calculate this statistic. Meta-analysis verified that canine cutaneous MCTs with elevated expression of Ki-67 or BAX, as well aberrant immuno-expression of KIT, showed an increased odds of death, with respective OR values of 11.2 (95% CI 6.3-20.0; p < .01), 9.9 (95% CI 1.3-73.6; p = .03), and 4.1 (95% CI 1.1-15.3; p = .03). Despite KIT, Ki67, and BAX arise as suitable prognostic factor for canine MCTs, this study highlighted the lack of important clinical and statistical data in many published articles, rendering it impossible to complete the meta-analysis of several potentially valuable immunohistochemical markers.
Collapse
Affiliation(s)
- Jennifer Ostrand Freytag
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Mariana Ramos Queiroz
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Verônica Mollica Govoni
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Isabel Veloso Alves Pereira
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Lidia Hildebrand Pulz
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Ricardo de Francisco Strefezzi
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Felisbina Luisa Queiroga
- Center for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
4
|
Garavello W, Viganò P, Romagnoli M, Sordo L, Berti E, Tredici G, Gaini RM. Expression of Cell Cycle Regulatory Proteins and Analysis of Apoptosis in Normal Nasal Mucosa and in Nasal Polyps. ACTA ACUST UNITED AC 2018. [DOI: 10.1177/194589240501900603] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Background The etiopathogenesis of nasal polyps still is to be clarified. Although hyperplasia is a typical feature of these pathological processes, little attention has been paid to specific aspects of cellular growth in polyps. We have evaluated the expression and localization of some of the regulatory proteins that direct the cell through the specific sequence of events culminating in mitosis or apoptosis in nasal polyps. Methods Twenty samples of nasal polyps and 20 samples of normal nasal mucosa have been analyzed for apoptotic index by detecting the DNA 3’ OH ends deriving from DNA fragmentation. Moreover, they have been evaluated by immunohistochemical staining for expression of Ki-67, cyclins A and B1, p53, p21, p27, murine double minute clone 2, and Bcl-2. Results We have identified a greater proportion of proliferating cells in the lining epithelial cells of the polyps when compared with the normal mucosa as stained with anti–Ki-67 antibodies. An overexpression of p53, MDM2, and Bcl-2 and an increased apoptosis were observed in nasal polyps compared with the normal mucosa, whereas no variation of p27 expression was observed. The p21 and cyclins A and B1 were rarely expressed in both pathological and normal tissue. Conclusion The p53-based control system of cell cycle progression appears to be altered in nasal polyps, potentially leading to an abrogation of the DNA damage checkpoint. Evaluation of the expression of the regulatory proteins that direct the cells throughout their cycle in nasal polyps may allow a better understanding of the biological behavior and clinical outcome of these benign pathological entities.
Collapse
Affiliation(s)
- Werner Garavello
- Department of Otorhinolaryngology, University of Milano-Bicocca, Dipartimento di neuroscience e technologie biomediche, Monza, Italy
| | - Paola Viganò
- Istituto Auxologico Italiano, Cusano Milanino, Milano, Italy
| | - Marco Romagnoli
- Department of Otorhinolaryngology, University of Milano-Bicocca, Dipartimento di neuroscience e technologie biomediche, Monza, Italy
| | - Lorenza Sordo
- Department of Otorhinolaryngology, University of Milano-Bicocca, Dipartimento di neuroscience e technologie biomediche, Monza, Italy
| | - Emilio Berti
- Ospedale Maggiore, Istituto di ricerca e cura a carattere scientifico, University of Milan, Milano, Italy
| | - Giovanni Tredici
- Department of Neuroscience and Biomedical Technologies, University of Milano-Bicocca, Monza, Italy
| | - Renato Maria Gaini
- Department of Otorhinolaryngology, University of Milano-Bicocca, Dipartimento di neuroscience e technologie biomediche, Monza, Italy
| |
Collapse
|
5
|
Labelle P, Kyles AE, Farver TB, De Cock HEV. Indicators of Malignancy of Canine Adrenocortical Tumors: Histopathology and Proliferation Index. Vet Pathol 2016; 41:490-7. [PMID: 15347821 DOI: 10.1354/vp.41-5-490] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Tumors of the adrenal cortex account for 10–20% of the naturally occurring Cushing's syndrome diagnosed in dogs. Differentiating between adrenocortical adenoma and carcinomas is often difficult. The purposes of this study were to determine which histopathologic criteria can be used as markers for malignancy in canine adrenocortical tumors and the relevance of the proliferation marker, Ki-67, for differentiation between cortical adenomas and carcinomas. Twenty-six adrenocortical carcinomas, 23 adenomas, and 11 normal adrenal glands were examined. Morphologic criteria significantly associated with adrenocortical carcinomas included a size larger than 2 cm in diameter, peripheral fibrosis, capsular invasion, trabecular growth pattern, hemorrhage, necrosis, and single-cell necrosis, whereas hematopoiesis, fibrin thombi, and cytoplasmic vacuolation were significantly associated with adrenocortical adenomas. The mean (± SD) proliferation index, measured by immunohistochemistry for the Ki-67 antigen, was 9.3 ± 6.3% in carcinomas, 0.76 ± 0.83% in adenomas, and 0.58 ± 0.57% in normal adrenal glands. The Ki-67 proliferation index was significantly higher in carcinomas compared with adenomas and normal adrenal glands. A threshold value of the proliferation index of 2.4% reliably separated carcinomas from adenomas. Based on these results, it appears that thorough evaluation of morphologic features combined with immunohistochemical assessment of the proliferation index is extremely useful for differentiating between adrenocortical adenomas and carcinomas in dogs.
Collapse
Affiliation(s)
- P Labelle
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | | | | | | |
Collapse
|
6
|
Webster JD, Yuzbasiyan-Gurkan V, Miller RA, Kaneene JB, Kiupel M. Cellular Proliferation in Canine Cutaneous Mast Cell Tumors: Associations with c-KIT and Its Role in Prognostication. Vet Pathol 2016; 44:298-308. [PMID: 17491070 DOI: 10.1354/vp.44-3-298] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Canine cutaneous mast cell tumor (MCT) is a common neoplastic disease in dogs. Due to the prevalence of canine MCTs and the variable biologic behavior of this disease, accurate prognostication and a thorough understanding of MCT biology are critical for the treatment of this disease. The goals of this study were to evaluate and compare the utility of the proliferation markers Ki67, proliferating cell nuclear antigen (PCNA), and argyrophilic nucleolar organizing region (AgNOR) as independent prognostic markers for canine MCTs and to evaluate the use of these markers in combination, as each marker assesses different aspects of cellular proliferation. An additional goal of this study was to evaluate the associations between cellular proliferation and c-KIT mutations and between cellular proliferation and aberrant KIT protein localization in canine MCTs. Fifty-six MCTs treated with surgical excision alone were included in this study. Each MCT was evaluated for Ki67 expression, PCNA expression, and KIT protein localization using immunohistochemistry; for AgNOR counts using histochemical staining; and for the presence of internal tandem duplication c-KIT mutations using polymerase chain reaction amplification. In this study, increased Ki67 and AgNOR counts were both associated with significantly decreased survival. On the basis of these results, we recommend that the evaluation of cellular proliferation, including evaluations of both Ki67 expression and AgNORs, should be routinely used in the prognostication of canine MCTs. Additionally, the results of this study show that MCTs with aberrant KIT protein localization or internal tandem duplication c-KIT mutations are associated with increased cellular proliferation, further suggesting a role for c-KIT in the progression of canine MCTs.
Collapse
Affiliation(s)
- J D Webster
- Comparative Medicine and Integrative Biology Program, Michigan State University, Lansing, MI 48910, USA
| | | | | | | | | |
Collapse
|
7
|
Selting KA, Ringold R, Husbands B, Pithua PO. Thymidine Kinase Type 1 and C-Reactive Protein Concentrations in Dogs with Spontaneously Occurring Cancer. J Vet Intern Med 2016; 30:1159-66. [PMID: 27214230 PMCID: PMC5089580 DOI: 10.1111/jvim.13954] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 03/08/2016] [Accepted: 04/13/2016] [Indexed: 11/30/2022] Open
Abstract
Background Serum thymidine kinase type 1 (TK1) and canine C‐Reactive Protein (cCRP) might be useful in detecting dogs with cancer. Algorithms combining biomarkers are sometimes more accurate than results of individual tests. Objectives The aim of this study was to compare serum TK1 and cCRP and Neoplasia Index (NI) in healthy and tumor‐bearing dogs. Animals Client‐owned dogs with (n = 253) and without (n = 156) cancer. Methods Retrospective case–control study. Dogs with cancer were identified after submission of samples for commercial assay and case details were retrospectively collected. Healthy dogs (control) were identified through breed groups and health status was confirmed by health questionnaire for a minimum of 6 months. Serum TK1 activity was measured using a quantitative chemiluminescent assay and serum cCRP was measured using a quantitative ELISA assay. Results TK1 activity in the cancer (n = 253) and control group (n = 156) were 7.0 μ/L (median, range <0.5 to >100) and 1.8 μ/L (median, range 0.4 to 55.3), respectively (P < .001). cCRP concentrations in the cancer and control group were 6.0 mg/L (median, range <0.5 to >50) and 1.6 mg/L (median, range 0.09 to >50), respectively (P < .001). The NI in the cancer and control group were 6.4 (median, range 0–9.9) and 0.9 (median, range 0–7.6), respectively (P < .001). ROC AUCs of the NI and TK1 for all cancers were greater than 0.8, highest for lymphoma and histiocytic sarcoma. Conclusions and Clinical Importance Increased concentrations of TK1 and cCRP, when present in dogs with cancer, might be useful in confirming a diagnosis and monitoring response to treatment.
Collapse
Affiliation(s)
- K A Selting
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO
| | - R Ringold
- Veterinary Diagnostic Institute, Inc., Simi Valley, CA
| | - B Husbands
- BluePearl Veterinary Partners, Eden Prarie, MN
| | - P O Pithua
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO
| |
Collapse
|
8
|
Meier V, Guscetti F, Roos M, Ohlerth S, Pruschy M, Rohrer Bley C. Hypoxia-Related Marker GLUT-1, CAIX, Proliferative Index and Microvessel Density in Canine Oral Malignant Neoplasia. PLoS One 2016; 11:e0149993. [PMID: 26906567 PMCID: PMC4764341 DOI: 10.1371/journal.pone.0149993] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 02/08/2016] [Indexed: 11/25/2022] Open
Abstract
For various types of tumor therapy, it is suggested that co-targeting of tumor microenvironment, mainly tumor vasculature, mediates tumor response mechanisms. Immunohistochemistry for glucose transporter-1 (GLUT-1), carbonic anhydrase-IX (CAIX), Ki-67, and von Willebrand factor VIII for microvessel density (MVD) were performed on formalin-fixed paraffin-embedded samples of canine oral malignant neoplasms. Polarographic oxygen measurements (median pO2) and perfusion data via contrast-enhanced power Doppler ultrasound (median vascularity, median blood volume) provided additional information. Ninety-two samples were analyzed: sarcomas (n = 32), carcinomas (n = 30), and malignant melanomas (n = 30). Polarographic oxygen and perfusion data was available in 22.8% (sarcomas n = 9, carcinomas n = 7, melanomas n = 5), and 27.1% (sarcomas n = 10, carcinomas n = 8, melanomas n = 7) of cases, respectively. GLUT-1 expression was detected in 46.7% of all samples, and was generally weak. CAIX expression was found in 34.8% of all samples. Median Ki-67 score and MVD count was 19% and 17, respectively. The evaluation of the GLUT-1 score and continuous data showed significantly lower GLUT-1 levels in sarcomas (mean 5.1%, SD 6.2) versus carcinomas and melanomas (mean 16.5%/ 19.0%, SD 17.3/ 20.9, p = 0.001). The expression of CAIX correlated mildly positively with GLUT-1 (p = 0.018, rho = 0.250) as well as with Ki-67 (p = 0.014, rho = 0.295). MVD showed a significantly lower level in melanomas (mean 12.6, SD 7.7) versus sarcomas and carcinomas (mean 21.8/ 26.9, SD 13.0/20.4, p = 0.001). Median vascularity and blood volume were significantly lower in sarcomas (mean 10.4%, SD 11.0, and mean 6.3%, SD 6.5, respectively) versus carcinomas (mean 39.2%, SD 16.4 and mean 33.0%, SD 25.6, respectively) and melanomas (mean 36.0%, SD 18.3, and 31.5%, SD 24.5). Between the 3 histological groups, there was neither a significant difference in the GLUT-1 and CAIX score and continuous data, nor the Ki67 score, or polarographic oxygen measurements. GLUT-1 continuous data and Ki-67 (p<0.001, rho = 0.403), as well as Ki-67 and MVD (p = 0.029, rho = 0.228) correlated positively and a mild correlation was found between vascularity and GLUT-1 (p = 0.043, rho = 0.408). GLUT-1, CAIX, proliferative index and MVD levels were established as microenvironmental descriptors with the purpose of creating a baseline in order to follow changes seen in the tumor microenvironment after hypofractionated radiation with high doses.
Collapse
Affiliation(s)
- Valeria Meier
- Division of Radiation Oncology, Vetsuisse Faculty University of Zurich, Zurich, Switzerland
- * E-mail:
| | - Franco Guscetti
- Institute of Veterinary Pathology, University of Zurich, Zurich, Switzerland
| | - Malgorzata Roos
- Department of Biostatistics, Epidemiology Biostatistics and Prevention Institute, Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Stefanie Ohlerth
- Clinic of Diagnostic Imaging, Vetsuisse Faculty University of Zurich, Zurich, Switzerland
| | - Martin Pruschy
- Laboratory for Molecular Radiobiology, Radiation Oncology, University Hospital Zurich, Zurich, Switzerland
| | - Carla Rohrer Bley
- Division of Radiation Oncology, Vetsuisse Faculty University of Zurich, Zurich, Switzerland
| |
Collapse
|
9
|
Advanced Diagnostic Techniques. CANINE AND FELINE CYTOLOGY 2016. [PMCID: PMC7158337 DOI: 10.1016/b978-1-4557-4083-3.00017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
|
10
|
Chacur M, Ibrahim D, Arrebola T, Sanches O, Giuffrida R, Oba E, Ramos A. Avaliação da técnica de coloração AgNOR em testículos de ovinos. ARQ BRAS MED VET ZOO 2015. [DOI: 10.1590/1678-6695] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A coloração pela prata das regiões organizadoras de nucléolos (NORs) é caracterizada por marcar proteínas ligadas ao ácido ribonucleico ribossômico, avaliando a proliferação em células normais ou neoplásicas. Objetivou-se estudar, em testículos de ovinos obtidos em matadouro, a validade do uso da técnica de coloração pela prata (AgNOR) na identificação das regiões organizadoras de nucléolo (NORs) em células saudáveis da linhagem espermatogênica. Utilizaram-se 43 pares de testículos de ovinos mestiços entre seis e 10 meses de idade. Testes de Wilcoxon e Spearman foram empregados, com nível de 5%. As médias das NORs nas células das gônadas direita e esquerda foram, respectivamente: espermatogônia (8,77±1,14 e 9,04±0,96), espermatócitos (4,99±2,00 e 6,20±2,07; P<0,05), Leydig (8,05±2,82 e 7,89±2,29) e Sertoli (8,07±1,88 e 7,61±2,16; P<0,05). Houve correlação (P<0,05) entre os lados para o número de NORs: espermatócitos x Leydig (0,49); espermatócitos x Sertoli (0,49) e Leydig x Sertoli (0,96). Conclui-se ser válido o emprego da técnica AgNOR para avaliar o potencial proliferativo das células saudáveis em testículos de ovinos com prática execução e baixo custo.
Collapse
Affiliation(s)
| | | | | | | | | | - E. Oba
- Universidade Estadual Paulista, Brasil
| | | |
Collapse
|
11
|
Pessina P, Castillo V, Sartore I, Borrego J, Meikle A. Semiquantitative immunohistochemical marker staining and localization in canine thyroid carcinoma and normal thyroid gland. Vet Comp Oncol 2014; 14:e102-12. [DOI: 10.1111/vco.12111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 06/22/2014] [Indexed: 12/27/2022]
Affiliation(s)
- P. Pessina
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| | - V. Castillo
- Cátedra Clínica Médica Pequeños Animales, U. Endocrinología, Htal. Escuela de Medicina Veterinaria, Facultad de Ciencias Veterinarias; Universidad de Buenos Aires; Buenos Aires Argentina
| | - I. Sartore
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| | - J. Borrego
- Instituto Veterinario de Oncología Comparada (IVOC); Valencia Spain
- Hospital Veterinario Facultad de Veterinaria y Ciencias Experimentales; Universidad Católica de Valencia “San Vicente Martir”; Valencia Spain
| | - A. Meikle
- Laboratorio de Técnicas Nucleares; Facultad de Veterinaria; Montevideo Uruguay
| |
Collapse
|
12
|
Strefezzi RDF, Kleeb SR, Xavier JG, Dias JLC. Avaliação da proliferação celular como indicador prognóstico para mastocitomas cutâneos caninos. PESQUISA VETERINARIA BRASILEIRA 2010. [DOI: 10.1590/s0100-736x2010000700009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Este estudo teve como objetivo avaliar o valor prognóstico de marcadores de proliferação celular em casos de mastocitomas cutâneos caninos. Vinte e três casos foram analisados quanto à expressão imuno-histoquímica de Ki67 e do Antígeno Nuclear de Proliferação Celular (PCNA), sendo subsequentemente acompanhados clinicamente. Observou-se que a expressão de Ki67 mantém relação negativa com a tradicional graduação histopatológica (p= 0,0418; p<0,05 entre os graus I e III), sendo um indicador confiável para o tempo de sobrevida pós-cirúrgica (p=0,0089). A imunoexpressão de PCNA, apesar de estar correlacionada à marcação por Ki67, não apresentou valores estatisticamente significantes na predição da mortalidade em função da doença e do tempo de sobrevida pós-cirúrgico. Os resultados obtidos confirmam que informações sobre a atividade proliferativa tumoral pela detecção imuno-histoquímica de Ki67 podem incrementar a classificação de mastocitomas cutâneos caninos quanto à malignidade.
Collapse
|
13
|
Reagan-Shaw S, Eggert D, Mukhtar H, Ahmad N. Antiproliferative Effects of Apple Peel Extract Against Cancer Cells. Nutr Cancer 2010; 62:517-24. [DOI: 10.1080/01635580903441253] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
14
|
Welle MM, Bley CR, Howard J, Rüfenacht S. Canine mast cell tumours: a review of the pathogenesis, clinical features, pathology and treatment. Vet Dermatol 2009; 19:321-39. [PMID: 18980632 DOI: 10.1111/j.1365-3164.2008.00694.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mast cells (MCs) are well known for their neoplastic transformation in solitary and multiple cutaneous mast cell tumours (MCTs), as well as visceral and systemic mastocytosis. Dogs have a unique risk of developing cutaneous MCTs, and they account for 7% to 21% of all canine skin tumours. The aetiology of canine MCTs is unknown but is probably multifactorial. This article reviews up-to-date knowledge on the pathogenesis, the clinical presentation, the clinical prognostic factors, the diagnostic workup including clinical staging, cytological findings, histological findings and the various grading systems which have been evaluated based on morphology, the assessment of proliferation markers and other factors such as vessel density. Furthermore, detailed information about current treatment protocols for canine cutaneous MCTs is provided.
Collapse
Affiliation(s)
- Monika M Welle
- Institute of Animal Pathology, Vetsuisse Faculty and University of Berne, Berne, Switzerland.
| | | | | | | |
Collapse
|
15
|
Kishore BK, Isaac J, Westenfelder C. Administration of poly-D-glutamic acid induces proliferation of erythropoietin-producing peritubular cells in rat kidney. Am J Physiol Renal Physiol 2006; 292:F749-61. [PMID: 17018848 DOI: 10.1152/ajprenal.00034.2006] [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: 01/13/2023] Open
Abstract
Erythropoietin (EPO), a 34-kDa glycoprotein, is produced predominantly by peritubular interstitial cells (PIC) in the renal cortex and is physiologically released when ambient oxygen pressure falls. However, the exact nature of EPO-producing cells in the kidney is not well understood. We discovered that brief administration of a low-molecular-weight synthetic peptide, poly-D-glutamic acid (PDG), induced prompt and robust expansion of EPO-producing PIC in rat kidney, without evidence of tubular cell necrosis/apoptosis or fibrotic reaction. Proliferating PIC in PDG-treated rats were noninflammatory, alpha-smooth muscle actin negative, and specifically expressed CD73 (ecto-5'-nucleotidase), EPO mRNA, and protein. Increased numbers of EPO-positive PIC persisted even after the cessation of PDG treatment. No erythropoietic effects of EPO were detected, potentially suggesting maintained physiological control of EPO secretion in this normoxic model. We showed previously that PDG is readily filtered and is rapidly taken up and stored in lysosomes of proximal tubular cells (PTC), resulting in an apparently nonnoxious lysosomal storage condition by virtue of its nonhydrolyzable nature (Kishore BK, Maldague P, Tulkens PM, Courtoy PJ. Lab Invest 74: 1013-1023, 1996). Based on these findings, we suggest that unknown signaling molecules, produced by PTC in response to lysosomal PDG storage, appear to specifically stimulate the proliferation of EPO-producing PIC. We conclude that this model is uniquely suited to investigate the biology of EPO production by PIC and may thus facilitate the development of novel and more economical therapies of anemias and other EPO-responsive conditions.
Collapse
Affiliation(s)
- Bellamkonda K Kishore
- Department of Internal Medicine, Univesity of Utah Health Science Center, Salt Lake City, UT 84148, USA.
| | | | | |
Collapse
|
16
|
Ettinger SN, Scase TJ, Oberthaler KT, Craft DM, McKnight JA, Leibman NF, Charney SC, Bergman PJ. Association of argyrophilic nucleolar organizing regions, Ki-67, and proliferating cell nuclear antigen scores with histologic grade and survival in dogs with soft tissue sarcomas: 60 cases (1996—2002). J Am Vet Med Assoc 2006; 228:1053-62. [PMID: 16579784 DOI: 10.2460/javma.228.7.1053] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether argyrophilic nucleolar organizing regions (AgNORs), Ki-67, and proliferating cell nuclear antigen (PCNA) scores were associated with histologic grade and survival in dogs with soft tissue sarcomas (STSs). DESIGN Retrospective study. ANIMALS 60 dogs with STSs. PROCEDURE Medical records were examined and histologic specimens were reviewed. Tissue specimens obtained from archival materials were used to prepare sections for histologic staining for AgNOR and immunohistochemical staining for Ki-67 and PCNA labeling. Follow-up monitoring was obtained by reevaluation or telephone conversations with referring veterinarians or owners. RESULTS 27 (45%) STSs were grade 1, 23 (38%) were grade 2, and 10 (17%) were grade 3. The mean and median AgNOR, Ki-67, and PCNA scores were determined, and significant positive associations among AgNOR and Ki-67 scores with histologic grade and mitotic score were detected. Fifty-four dogs had adequate follow-up examinations and were included in survival analysis and evaluation of prognostic factors. Overall median survival time was > 1,306 days. Twelve of 54 (22%) dogs died of tumor-related causes. Metastatic disease developed in 8 of 54 (15%) dogs. Results of univariate analysis indicated that increased mitotic score, increased AgNOR score, increased Ki-67 score, incomplete surgical margins, noncurative intent surgery, Ki-67 score greater than the median Ki-67 score, and AgNOR score greater than the median AgNOR score were prognostic factors for decreased survival time. Results of multivariate analysis indicated that increased AgNOR score was the only prognostic factor for decreased survival time. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that AgNORs and possibly Ki-67 should be routinely evaluated with histologic grading for STSs in dogs.
Collapse
Affiliation(s)
- Susan N Ettinger
- Donaldson-Atwood Cancer Clinic, The Animal Medical Center, New York, NY 10021, USA
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Newman SJ. Diagnostic pathology for the cancer patient. CLINICAL TECHNIQUES IN SMALL ANIMAL PRACTICE 2003; 18:139-44. [PMID: 12831079 DOI: 10.1053/svms.2003.36633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
It is necessary to have a cooperative relationship between the clinician and the pathologist, because information from both is critical for determining the best case management and favorable prognosis. The principle roles of the veterinary pathologist are to describe the submitted tissues, to determine the nature of the tumor, and to assess completeness of surgical margins. Recently, the Council of the American College of Veterinary Pathologists (ACVP) appointed an ad hoc committee on oncology to evaluate oncologists' needs by polling members of the Veterinary Cancer Society (VCS). The committee's vision was to review morphologic, immunologic, and molecular techniques so that veterinary pathologists could meet the current and future diagnostic and prognostic needs of oncologic veterinarians. The factors determined to be most important to the VCS members in selecting a diagnostic pathology provider included, in order of importance: (1) reliability of results; (2) short turnaround-time; (3) easy access for consultation; (4) rapport with pathologist; (5) convenience of service; and (6) cost of service. This manuscript will attempt to review improved morphologic, immunologic, and molecular techniques to provide for the future diagnostic and prognostic needs of oncologic veterinarians.
Collapse
|
18
|
Suzuki M, Uchida K, Morozumi M, Yanai T, Nakayama H, Yamaguchi R, Tateyama S. A Comparative Pathological Study on Granulomatous Meningoencephalomyelitis and Central Malignant Histiocytosis in Dogs. J Vet Med Sci 2003; 65:1319-24. [PMID: 14709820 DOI: 10.1292/jvms.65.1319] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Histiocytic proliferative disorders in canine central nervous system (CNS) including granulomatous meningoencephalomyelitis (GME) and malignant histiocytosis were compared pathologically. Lesions of GME mainly existed in the white matter of the cerebrum, brainstem and cerebellum and consisted of characteristic perivascular cuffing, parenchymal granuloma and leptomeningeal infiltrates of mononuclear cells. In malignant histiocytosis, there were two histological patterns, diffuse proliferation of neoplastic histiocytes through the leptomeninges and neoplastic nodule formation in the parenchyma. Neoplastic histiocytes exhibited mild to severe cellular atypia and high ability of invasion into the brain parenchyma. Mitotic and phagocytic figures were also observed. Several histiocytic markers, including lysozyme, alpha1-antitrypsin and lectin RCA-1, revealed histiocytic origin of both inflammatory and neoplastic cells, however, those were not determinative for the discrimination between GME and malignant histiocytosis. CD3- and PCNA-positive cells existed in the lesions of both diseases. The number of CD3-positive cells in GME tended to be greater than in malignant histiocytosis, while the difference was not statistically significant.
Collapse
Affiliation(s)
- Mari Suzuki
- Department of Veterinary Pathology, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan
| | | | | | | | | | | | | |
Collapse
|