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Flores AR, Rêma A, Mesquita JR, Taulescu M, Seixas F, Gärtner F, Amorim I. Vimentin and Ki-67 immunolabeling in canine gastric carcinomas and their prognostic value. Vet Pathol 2022; 59:903-914. [PMID: 35972070 DOI: 10.1177/03009858221117858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study evaluated the expression of vimentin and Ki-67 proliferative index (PI) by immunohistochemistry in 30 canine gastric carcinomas (GCs) and a possible association with clinical and pathological features and patient's survival time. Vimentin immunoreactivity was assessed in neoplastic cells (in primary lesions, emboli, and metastases) and tumor-associated stroma (TAS) of canine GCs. Ki-67 PI was quantified in the neoplastic epithelial component. Vimentin immunolabeling in neoplastic cells was found in 30% of the primary lesions, in 82% of the neoplastic emboli, and in 50% of the metastases; in TAS, it was observed in all cases. A mean of 16% of the TAS was immunolabeled for vimentin. High vimentin immunolabeling in the TAS (>16%) was detected in 40% of cases. The average value of Ki-67 PI was 50%, and 80% of the lesions had Ki-67 PI above 20%. Vimentin immunolabeling in neoplastic cells was more frequent in less-differentiated carcinomas (diffuse [29%] and indeterminate types [75%]) than well-differentiated carcinomas (intestinal type [0%], P = .049). No significant differences were observed in vimentin immunolabeling in the TAS or Ki-67 PI according to histological diagnosis, depth of invasion, presence of neoplastic emboli or metastases. However, vimentin immunolabeling in the TAS was positively correlated with Ki-67 PI (r = .394, P = .031). Furthermore, a moderate negative correlation was observed between Ki-67 PI and survival time (r = -0.540). Our results suggest that vimentin and Ki-67 PI have potential for providing prognostic information in cases of canine GCs.
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Affiliation(s)
- Ana R Flores
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal.,University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,Associate Laboratory for Animal and Veterinary Sciences, Vila Real, Portugal
| | - Alexandra Rêma
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - João R Mesquita
- Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
| | - Marian Taulescu
- University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca, Romania.,Synevovet Laboratory, Chiajna, Romania
| | - Fernanda Seixas
- University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,Associate Laboratory for Animal and Veterinary Sciences, Vila Real, Portugal
| | - Fátima Gärtner
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Irina Amorim
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
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Protection and immune modulation of activated human vaginal epithelial cells by Aurea helianthus extract. Sci Rep 2020; 10:9227. [PMID: 32513981 PMCID: PMC7280265 DOI: 10.1038/s41598-020-65821-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/25/2020] [Indexed: 11/08/2022] Open
Abstract
Aurea helianthus extract is associated with various properties including anti-melanogenesis, anti-oxidation, tumorigenic suppression, and immunoregulation; however, the mechanism by which it executes the immunomodulation of human vaginal epithelial cells (HVECs) remains elusive. We established three immunological functions of the extract. First, it mediated tumorigenic suppression in HVECs. Expression of cytokeratin 8, cancer antigen-125, and vimentin was dramatically downregulated in HVECs exposed to the extract under oxidative and fungal stresses. Second, the extract activated dendritic cells and macrophages. On exposing progenitor dendritic cells to the extract, the number of CD304+ cells increased by 40%; further, under oxidative and fungal stresses, this number was approximately 1.8 and 1.3 times lower, respectively, compared to that in the stressed cells. In monocytic differentiation, the number of dendritic cells and macrophages increased 9 and 6 times, respectively, compared to that in the control. Additionally, the extract enhanced and recovered polarisation by approximately 1.5 and 2 times, respectively, than that under stressed conditions. Third, the phagocytic activity of macrophages, against HPV16, 18, and 33 peptides, was enhanced by 12–35 times compared with that under stressed conditions. Thus, A. helianthus extract is a strong stimulator of the immune system and tumorigenic suppression under stress conditions.
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Cutrera J, King G, Jones P, Kicenuik K, Gumpel E, Xia X, Li S. Safety and efficacy of tumor-targeted interleukin 12 gene therapy in treated and non-treated, metastatic lesions. Curr Gene Ther 2015; 15:44-54. [PMID: 25429465 DOI: 10.2174/1566523214666141127093654] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 09/11/2014] [Accepted: 11/05/2014] [Indexed: 01/13/2023]
Abstract
The ability to control the immune system to actively attack tumor tissues will be a marvelous weapon to combat the persistent attack of cancer. Unfortunately, safe and effective methods to gain this control are not yet available as cancer therapies. To overcome the impediments to this control, tumor-targeted (tt) Interleukin 12 (IL-12) plasmid DNA can be safely delivered to accessible tumors, and these treatments can induce antitumor immune responses in both the treated and untreated tumors. Here, electroporationmediated ttIL-12 pDNA treatments are shown to be safe and well tolerated in a dose escalation study in canines bearing naturally-occurring neoplasms. The final patient in the dose-escalation study received up to 3,800 μg pDNA distributed among five separate squamous cell carcinoma tumors in doses equivalent to those administered in a Phase I trial with wildtype IL-12 pDNA. Not a single severe adverse event occurred in any patient at any of the five dose levels, and only minor, transient changes were noted in any tested parameter. Clinical response analysis and immune marker mRNA detection of treated and non-treated lesions suggest that ttIL-12 pDNA treatments in only a few tumors can elicit antitumor immune responses in the treated lesions as well as distant metastatic lesions. These observations and results demonstrate that ttIL-12 pDNA can be safely administered at clinical levels, and these treatments can affect both treated and nontreated, metastatic lesions.
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Affiliation(s)
| | | | | | | | | | | | - Shulin Li
- University of Texas MD Anderson Cancer Center, Department of Pediatrics, Houston, TX 77030, USA.
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Fonseca-Alves CE, Kobayashi PE, Rivera-Calderón LG, Laufer-Amorim R. Evidence of epithelial-mesenchymal transition in canine prostate cancer metastasis. Res Vet Sci 2015; 100:176-81. [PMID: 25796368 DOI: 10.1016/j.rvsc.2015.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 02/23/2015] [Accepted: 03/01/2015] [Indexed: 11/28/2022]
Abstract
The epithelial-mesenchymal transition (EMT) is a fundamental event responsible for the invasiveness and metastasis of epithelial tumours. The EMT has been described in many human cancers, but there are few reports of this phenomenon in veterinary oncology. Due to the importance of this process, the current study evaluated mesenchymal and epithelial marker protein expression in prostate lesions from dogs. Our results indicate both a loss of E-cadherin and translocation of β-catenin from the membrane to the cytoplasm and nucleus in the tumour group. Vimentin expression in the tumour group was higher than in normal tissue. All of the metastases were positive for prostate-specific antigen, pan-cytokeratin and E-cadherin, although fewer positive cells were present than in the primary tumours. The immunohistochemical results showed a loss of epithelial markers and a gain of a mesenchymal marker among metastatic cells, suggesting that the EMT occurs during the metastatic process of canine prostate carcinoma.
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Affiliation(s)
- Carlos Eduardo Fonseca-Alves
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Botucatu 18618-970, São Paulo, Brazil.
| | - Priscila Emiko Kobayashi
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Botucatu 18618-970, São Paulo, Brazil
| | - Luis Gabriel Rivera-Calderón
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Botucatu 18618-970, São Paulo, Brazil
| | - Renée Laufer-Amorim
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Botucatu 18618-970, São Paulo, Brazil
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Yoshida K, Choisunirachon N, Saito T, Matsumoto K, Saeki K, Mochizuki M, Nishimura R, Sasaki N, Nakagawa T. Hepatocyte growth factor-induced up-regulation of Twist drives epithelial–mesenchymal transition in a canine mammary tumour cell line. Res Vet Sci 2014; 97:521-6. [DOI: 10.1016/j.rvsc.2014.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 09/15/2014] [Accepted: 09/17/2014] [Indexed: 01/13/2023]
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Palmieri C. Immunohistochemical Expression of Angiogenic Factors by Neoplastic Epithelial Cells Is Associated With Canine Prostatic Carcinogenesis. Vet Pathol 2014; 52:607-13. [DOI: 10.1177/0300985814549951] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The dog is the only species, other than humans, in which spontaneous prostatic cancer occurs; therefore, dogs are a valuable model for the study of factors that regulate tumor progression. Angiogenesis is important in the development and spread of a variety of cancers, including prostate cancer. To better define the role of cancer epithelial cells in prostate cancer neovascularization, immunohistochemical staining for angiogenic factors (vascular endothelial growth factor [VEGF], platelet endothelial cell adhesion molecule–1 [PECAM-1], Tie-2, and fibroblast growth factor–2 [FGF-2]) was performed on formalin-fixed, paraffin-embedded tissues from 10 normal prostates, 15 hyperplastic prostates, and 11 prostatic carcinomas from dogs. Normal and hyperplastic epithelial cells were negative for PECAM-1, VEGF, and Tie-2, while the same markers were expressed with a variable intensity of cytoplasmic staining by neoplastic cells. Mild to moderate FGF-2 staining was detected in all normal prostates with less than 10% of positive cells, mainly distributed in the basal layer. The percentage of FGF-2–positive hyperplastic cells was variable, with both basal and secretory cells exhibiting a perinuclear to diffuse cytoplasmic staining. The mean number of positive cells and the intensity of staining were higher in prostatic carcinomas than normal and hyperplastic prostates. Moreover, microvessel density analyzed on PECAM-1–stained slides was increased in prostate cancer compared with normal and hyperplastic prostates. Therefore, prostatic neoplastic cells are capable of simultaneous expression of various angiogenic factors and may increase tumor proliferation and angiogenesis in a paracrine and autocrine fashion.
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Affiliation(s)
- C. Palmieri
- School of Veterinary Science, The University of Queensland, Queensland, Australia
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Palmieri C, Mancini M, Benazzi C, Della Salda L. Heat shock protein 90 is associated with hyperplasia and neoplastic transformation of canine prostatic epithelial cells. J Comp Pathol 2014; 150:393-8. [PMID: 24679854 DOI: 10.1016/j.jcpa.2014.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 11/02/2013] [Accepted: 01/17/2014] [Indexed: 11/19/2022]
Abstract
Heat shock protein 90 (HSP90) is a molecular chaperone that regulates critical signalling proteins of cancer development and progression. Abnormal levels of HSP90 have been observed in human prostatic carcinoma (PC), with prognostic and therapeutic implications. Since spontaneously arising canine PC is a valuable model for the human disease, the aim of this study was to evaluate the immunohistochemical expression of HSP90 in two normal canine prostates, 17 canine prostates with benign prostatic hyperplasia (BPH) and five canine prostates with PC. HSP90 was expressed in the cytoplasm of epithelial cells in all samples, with a significant increase in labelled cells in PCs. Nuclear labelling was observed occasionally in normal tissue, but was increased in BPH and PC. HSP90 immunoreactivity in preneoplastic lesions (proliferative inflammatory atrophy and prostatic intraepithelial neoplasia) was similar to that in PCs. Increased HSP90 expression in canine PCs suggests the involvement of this molecule in carcinogenesis and tumour progression, supporting HSP90 as a potential target for therapeutic intervention.
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Affiliation(s)
- C Palmieri
- School of Veterinary Science, University of Queensland, Gatton Campus, Gatton 4343, Queensland, Australia
| | - M Mancini
- Faculty of Veterinary Medicine, Teramo University, Piazza Aldo Moro 45, 64100 Teramo, Italy
| | - C Benazzi
- DIMEVET, Department of Veterinary Medical Sciences, School of Agriculture and Veterinary Medicine, University of Bologna, Italy
| | - L Della Salda
- Faculty of Veterinary Medicine, Teramo University, Piazza Aldo Moro 45, 64100 Teramo, Italy.
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