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Oballe HJR, Muniz FWMG, Bueno CC, Klein IP, Carrard VC, Rösing CK, Gaio EJ. Spontaneous alveolar bone loss after 4NQO exposure in Wistar rats. Arch Oral Biol 2018; 89:44-48. [PMID: 29448184 DOI: 10.1016/j.archoralbio.2018.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 01/22/2018] [Accepted: 02/04/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVE This study evaluated the effect of an experimental carcinogenic, 4-Nitroquinoline 1-oxide (4NQO), in the spontaneous alveolar bone loss (ABL) in an animal model. DESIGN Twenty-two male Wistar rats were included in this study. They were randomly divided into two groups: the control group (n = 10) received food and water ad libitum, and the test group (n = 12) receive the same food; however, 25 ppm of 4NQO was diluted in the drinking water. All animals were euthanized after 20 weeks, and the tongues were removed and analyzed macroscopically to determine the presence of oral mucosal lesions. All specimens were paraffin-embedded and histological sections were obtained. The microscopic analysis was based on routine procedure (haematoxylin and eosin stain). The analysis of spontaneous ABL was performed by a calibrated examiner using standardized photographs and imaging software. Differences in spontaneous ABL were assessed among the three resulting groups: control, 4NQO with oral squamous cell carcinoma (OSCC), and 4NQO without OSCC. RESULTS In the 4NQO-treated group, nine animals developed OSCC. The animals in the 4NQO with OSCC group presented significantly more spontaneous ABL (0.65 ± 0.21 mm) than the control group (0.34 ± 0.05) (p < 0.001). The animals in the 4NQO without OSCC group showed a mean spontaneous ABL of 0.47 ± 0.13 mm, which was not statistically significant different when compared to the control group (p = 0.096). CONCLUSIONS It was concluded that the presence of OSCC enhanced spontaneous ABL in Wistar rats when compared to control animals. Additionally, it was shown that, solely, administration of 4NQO may not be considered responsible for alveolar bone destruction.
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Affiliation(s)
- Harry J R Oballe
- Department of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil.
| | - Francisco Wilker M G Muniz
- Department of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil.
| | - Cheyenne C Bueno
- Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil; Department of Oral Pathology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Isadora P Klein
- Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil; Department of Oral Pathology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Vinicius C Carrard
- Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil; Department of Oral Pathology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Cassiano K Rösing
- Department of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil.
| | - Eduardo J Gaio
- Department of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Zip code: 90035-003, Brazil.
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Prgomet Z, Andersson T, Lindberg P. Higher expression of WNT5A protein in oral squamous cell carcinoma compared with dysplasia and oral mucosa with a normal appearance. Eur J Oral Sci 2017; 125:237-246. [PMID: 28603941 PMCID: PMC5519933 DOI: 10.1111/eos.12352] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
WNT5A is a secreted signaling protein that promotes migration and invasion of oral squamous cell carcinoma (OSCC) cells through activation of non‐canonical WNT signaling. Here, we examined expression of WNT5A, β‐catenin, and E‐cadherin by immunohistochemistry in 21 human diagnostic incision biopsies that each had regions of oral mucosa with a normal appearance adjacent to the affected tissue, dysplasia, and OSCC. We also investigated the effect of recombinant WNT5A (rWNT5A) on expression of the cell‐adhesion proteins E‐cadherin and β‐catenin by western blot analysis. No expression of WNT5A protein was present in oral mucosa with a normal appearance or in mild grade dysplasia. However, expression of WNT5A increased along with increasing grade of dysplasia, and the highest expression was detected in OSCCs. Expression of membranous β‐catenin and of E‐cadherin was lower, whereas expression of cytoplasmic β‐catenin was higher, in OSCCs than in non‐cancerous regions. However, there was no correlation between expression of WNT5A and expression of either β‐catenin or E‐cadherin. Furthermore, treatment of OSCC cells with rWNT5A had no effect on the expression of β‐catenin or E‐cadherin. Taken together with previous results, we conclude that WNT5A influences the progression of OSCC without affecting the canonical WNT/β‐catenin pathway and without down‐regulating E‐cadherin. WNT5A may have potential as a biological marker for malignant transformation of dysplasia to OSCC.
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Affiliation(s)
- Zdenka Prgomet
- Oral Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden.,Cell and Experimental Pathology, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Tommy Andersson
- Cell and Experimental Pathology, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Pia Lindberg
- Oral Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden
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Sakamoto T, Kawano S, Matsubara R, Goto Y, Jinno T, Maruse Y, Kaneko N, Hashiguchi Y, Hattori T, Tanaka S, Kitamura R, Kiyoshima T, Nakamura S. Critical roles of Wnt5a-Ror2 signaling in aggressiveness of tongue squamous cell carcinoma and production of matrix metalloproteinase-2 via ΔNp63β-mediated epithelial-mesenchymal transition. Oral Oncol 2017; 69:15-25. [PMID: 28559016 DOI: 10.1016/j.oraloncology.2017.03.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/22/2017] [Accepted: 03/28/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVES We previously showed that ΔNp63β, a splicing variant of ΔNp63, mediated EMT and affected cell motility. DNA microarray was thus performed to elucidate the mechanism that ΔNp63β affects cell motility. As the results, Wnt5a was significantly down-regulated by ΔNp63β overexpression in tongue SCC cell line (SQUU-B) with EMT phenotype. MATERIALS AND METHODS Seven OSCC cell lines were used. Expression of ΔNp63, Wnt5a, its receptor Ror2, and matrix metalloproteinases (MMPs) were analyzed by RT-PCR, real-time PCR, and western blotting, and gelatin zymography. Furthermore, we examined the effects of siRNA for Wnt5a or Ror2 and recombinant human Wnt5a (rhWnt5a) on motility of tongue SCC cells. Biopsy specimens from tongue SCC patients were used for immunohistochemical staining of Wnt5a and Ror2. RESULTS Wnt5a and Ror2 were expressed only in SQUU-B cells without ΔNp63 expression, and negatively associated with ΔNp63 expression in other cells. ΔNp63β overexpression in SQUU-B cells decreased Wnt5a and Ror2 expression. By Wnt5a or Ror2 knockdown, cell motility was remarkably inhibited, but EMT markers expression was unaffected. MMP-2 expression and the activities inversely correlated with ΔNp63 expression, and were inhibited by Wnt5a or Ror2 knockdown. Cell motility and MMP-2 activities were recovered by adding rhWnt5a in the cells with Wnt5a knockdown, but not in those with Ror2 knockdown. Moreover, immunohistochemical analyses in tongue SCC specimens found that high expression of Wnt5a or Ror2 was associated with poorer prognosis. CONCLUSION Wnt5a-Ror2 signaling enhanced tongue SCC cell aggressiveness and promoted production of MMP-2 following ΔNp63β-mediated EMT.
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Affiliation(s)
- Taiki Sakamoto
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Shintaro Kawano
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Ryota Matsubara
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yuichi Goto
- Maxillofacial Diagnostic and Surgical Sciences, Department of Oral and Maxillofacial Rehabilitation, Course of Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
| | - Teppei Jinno
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yasuyuki Maruse
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Naoki Kaneko
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yuma Hashiguchi
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Taichi Hattori
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Shoichi Tanaka
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Ryoji Kitamura
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Tamotsu Kiyoshima
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Seiji Nakamura
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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Prgomet Z, Andersson T, Lindberg P. Optimization, validation, and identification of two reliable antibodies for immunodetection of WNT5A. Biotech Histochem 2017; 92:46-58. [PMID: 28157427 DOI: 10.1080/10520295.2016.1255995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
WNT5A is a secreted, noncanonical WNT signaling protein that has been reported to promote progression of several types of cancer, including oral squamous cell carcinoma. Many WNT5A antibodies are available commercially for immunohistochemistry (IHC) and western blot analysis. Validation of the primary antibodies, however, is often neglected. We characterized antibodies for detecting WNT5A by IHC and western blot analysis. We evaluated one polyclonal and three monoclonal commercially available WNT5A antibodies. After optimization of the IHC assay, all four antibodies showed cytoplasmic WNT5A expression in tissue samples; in contrast, only one antibody detected WNT5A in western blots. A pre-absorption test with recombinant WNT5A showed that AF645 and 3A4 antibodies specifically detected WNT5A in different assays. We suggest that the monoclonal 3A4 antibody is the most appropriate for use with IHC, while the polyclonal AF645 antibody is the best for western blot analysis.
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Affiliation(s)
- Z Prgomet
- a Oral Pathology, Faculty of Odontology , Malmo University , Malmo , Sweden.,b Cell and Experimental Pathology, Department of Translational Medicine, Lund University , Clinical Research Centre, Skane University Hospital , Malmo , Sweden
| | - T Andersson
- b Cell and Experimental Pathology, Department of Translational Medicine, Lund University , Clinical Research Centre, Skane University Hospital , Malmo , Sweden
| | - P Lindberg
- a Oral Pathology, Faculty of Odontology , Malmo University , Malmo , Sweden
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Ganci F, Sacconi A, Manciocco V, Sperduti I, Battaglia P, Covello R, Muti P, Strano S, Spriano G, Fontemaggi G, Blandino G. MicroRNA expression as predictor of local recurrence risk in oral squamous cell carcinoma. Head Neck 2015; 38 Suppl 1:E189-97. [DOI: 10.1002/hed.23969] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2014] [Indexed: 01/12/2023] Open
Affiliation(s)
- Federica Ganci
- Translational Oncogenomics Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Andrea Sacconi
- Translational Oncogenomics Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Valentina Manciocco
- Otolaryngology Department; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Isabella Sperduti
- Biostatistical Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Paolo Battaglia
- Department of Biotechnology and Life Sciences; University of Insubria; Varese Italy
| | - Renato Covello
- Pathology Department; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Paola Muti
- Department of Oncology; Juravinski Cancer Center-McMaster University Hamilton; Ontario Canada
- School of Public Health-Harvard University; Boston Massachusetts
| | - Sabrina Strano
- Molecular Chemoprevention Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Giuseppe Spriano
- Otolaryngology Department; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Giulia Fontemaggi
- Translational Oncogenomics Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
| | - Giovanni Blandino
- Translational Oncogenomics Unit; Italian National Cancer Institute “Regina Elena”; Rome Italy
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Noncanonical activation of β-catenin by Porphyromonas gingivalis. Infect Immun 2015; 83:3195-203. [PMID: 26034209 DOI: 10.1128/iai.00302-15] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 05/20/2015] [Indexed: 01/01/2023] Open
Abstract
Porphyromonas gingivalis is an established pathogen in periodontal disease and an emerging pathogen in serious systemic conditions, including some forms of cancer. We investigated the effect of P. gingivalis on β-catenin signaling, a major pathway in the control of cell proliferation and tumorigenesis. Infection of gingival epithelial cells with P. gingivalis did not influence the phosphorylation status of β-catenin but resulted in proteolytic processing. The use of mutants deficient in gingipain production, along with gingipain-specific inhibitors, revealed that gingipain proteolytic activity was required for β-catenin processing. The β-catenin destruction complex components Axin1, adenomatous polyposis coli (APC), and GSK3β were also proteolytically processed by P. gingivalis gingipains. Cell fractionation and Western blotting demonstrated that β-catenin fragments were translocated to the nucleus. The accumulation of β-catenin in the nucleus following P. gingivalis infection was confirmed by immunofluorescence microscopy. A luciferase reporter assay showed that P. gingivalis increased the activity of the β-catenin-dependent TCF/LEF promoter. P. gingivalis did not increase Wnt3a mRNA levels, a finding consistent with P. gingivalis-induced proteolytic processing causing the increase in TCF/LEF promoter activity. Thus, our data indicate that P. gingivalis can induce the noncanonical activation of β-catenin and disassociation of the β-catenin destruction complex by gingipain-dependent proteolytic processing. β-Catenin activation in epithelial cells by P. gingivalis may contribute to a proliferative phenotype.
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7
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Prgomet Z, Axelsson L, Lindberg P, Andersson T. Migration and invasion of oral squamous carcinoma cells is promoted by WNT5A, a regulator of cancer progression. J Oral Pathol Med 2014; 44:776-84. [PMID: 25459554 DOI: 10.1111/jop.12292] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) constitutes 90% of all cancers in the oral cavity, and the prognosis for patients diagnosed with OSCC is still poor. The identification of novel therapeutic targets and prognostic markers for OSCC is therefore essential. Previous studies of OSCC revealed an increased expression of WNT5A in the tumor tissue. However, no functional studies of WNT5A-induced effects in OSCC have been performed. METHODS Two different OSCC cell lines were used for analysis of WNT5A expression by Western blot, whereas WNT5A-induced responses were analyzed by measuring calcium (Ca²⁺) signaling, PKC activation, migration and invasion. RESULTS Despite the lack of WNT5A expression, both cell lines responded to recombinant WNT5A (rWNT5A) with activation of the non-canonical WNT/Ca²⁺ /PKC pathway. This effect was ascertained to be mediated by WNT5A by use of the WNT5A antagonist, Box5. To investigate how WNT5A affects tumor progression, rWNT5A-induced alterations in BrdU absorbance (reflecting the number of tumor cells) were analyzed. rWNT5A had no effect on BrdU absorbance but instead promoted tumor cell migration and invasion. These results were confirmed by the use of the WNT5A-mimicking peptide Foxy5, while the rWNT5A-induced migration was blocked by secreted Frizzled-related protein 1 (SFRP1), protein kinase C inhibitors or the intracellular Ca²⁺ chelator, MAPT. CONCLUSIONS These novel data clearly show that WNT5A activates the non-canonical WNT/Ca²⁺ /PKC pathway and increases migration and invasion of OSCC cells. This may indicate how an increased WNT5A expression in the tumor tissue is likely to promote progression of OSCC.
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Affiliation(s)
- Zdenka Prgomet
- Oral Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden.,Cell and Experimental Pathology, Department of Laboratory Medicine, Lund University, Clinical Research Centre, Skåne University Hospital, Malmö, Sweden
| | - Lena Axelsson
- Cell and Experimental Pathology, Department of Laboratory Medicine, Lund University, Clinical Research Centre, Skåne University Hospital, Malmö, Sweden
| | - Pia Lindberg
- Oral Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Tommy Andersson
- Cell and Experimental Pathology, Department of Laboratory Medicine, Lund University, Clinical Research Centre, Skåne University Hospital, Malmö, Sweden
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Dong L, Duan XC, Han CX, Zhang H, Wu Y. Suppression of wingless-type MMTV integration site family, member 1 expression by small interfering RNA inhibits U251 glioma cell growth in vitro.. Oncol Lett 2014; 9:81-85. [PMID: 25435937 PMCID: PMC4246625 DOI: 10.3892/ol.2014.2647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 01/03/2014] [Indexed: 11/23/2022] Open
Abstract
A Wingless-type MMTV integration site family, member 1 (Wnt-1) RNA interference expression vector was constructed during the present study, which was used to transfect the glioma U251 cell line and investigate its effect on glioma. Two 21-base oligonucleotides complementary to the coding sequence that was flanking the loop sequence were designed to form a DNA hairpin template for the target small interfering RNA (siRNA). The siRNA templates were cloned into the siRNA expression vector, pGPU6/green fluorescent protein (GFP)/Neo and the sequence was confirmed by DNA sequencing. The pGPU6/GFP/Neo-short hairpin RNA (shRNA)-Wnt-1 vector was subsequently transfected into U251 cells, and reverse transcription polymerase chain reaction and western blot analysis were used to evaluate the Wnt-1 gene silencing effect on U251 cell growth by MTT assay and flow cytometry. The Wnt-1 protein expression was significantly reduced following transfection with the recombinant plasmid, as determined by western blot analysis of the transfected U251 cells. This transfection exhibited a significantly higher death rate, as shown by MTT. Thus, the present study demonstrated that the pGPU6/GFP/Neo-shRNA-Wnt-1 vector inhibited Wnt-1 protein expression. However, further investigations regarding the Wnt signaling pathway in glioma pathogenesis are required.
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Affiliation(s)
- Lun Dong
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Xiao-Chun Duan
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Chong-Xu Han
- Central Laboratory, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Hengzhu Zhang
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Yongkang Wu
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
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Hedgehog signaling pathway mediates tongue tumorigenesis in wild-type mice but not in Gal3-deficient mice. Exp Mol Pathol 2014; 97:332-7. [DOI: 10.1016/j.yexmp.2014.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 09/12/2014] [Indexed: 01/10/2023]
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10
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MicroRNA-9 inhibits the proliferation of oral squamous cell carcinoma cells by suppressing expression of CXCR4 via the Wnt/β-catenin signaling pathway. Oncogene 2013; 33:5017-27. [DOI: 10.1038/onc.2013.448] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 08/20/2013] [Accepted: 09/13/2013] [Indexed: 12/16/2022]
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Noguti J, Alvarenga TA, Andersen ML, Tufik S, Oshima CTF, Ribeiro DA. The influence of sleep deprivation on expression of apoptosis regulatory proteins p53, bcl-2 and bax following rat tongue carcinogenesis induced by 4-nitroquinoline 1-oxide. Dent Res J (Isfahan) 2013; 10:247-53. [PMID: 23946744 PMCID: PMC3731968 DOI: 10.4103/1735-3327.113360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background: The aim of this study was to evaluate whether paradoxical sleep deprivation could affects the mechanisms and pathways essentials for cancer cells in tongue cancer induced by 4-nitroquinole 1-oxide in Wistar rats. Materials and Methods: For this purpose, the animals were distributed into 4 groups of 5 animals each treated with 50 ppm 4 nitroquinoline 1 oxide (4 NQO) solution through their drinking water for 4 and 12 weeks. The animals were submitted to paradoxical sleep deprivation (PSD) for 72 h using the modified multiple platform method, which consisted of placing 5 mice in a cage (41 × 34 × 16 cm) containing 10 circular platforms (3.5 cm in diameter) with water 1 cm below the upper surface. The investigations were conducted using immunohistochemistry of p53, Bax and Bcl-2 proteins related to apoptosis and its pathways. Statistical analysis was performed by Kruskal-Wallis non-parametric test followed by the Dunn's test using SPSS software pack (version 1.0). P value < 0.05 was considered for statistic significance. Results: Although no histopathological abnormalities were induced in the epithelium after 4 weeks of carcinogen exposure in all groups, in 12 weeks were observed pre-neoplasic lesions. Data analysis revealed statistically significant differences (P < 0.05) in 4 weeks group for p53 and for bcl-2 and for all immunomarkers after 12 weeks of 4NQO administration. Conclusion: Our results reveal that sleep deprivation exerted alterations in proteins associated with proliferation and apoptosis in carcinogenesis.
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Affiliation(s)
- Juliana Noguti
- Department of Pathology, Federal University of São Paulo, UNIFESP, SP, Brazil
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Osei-Sarfo K, Tang XH, Urvalek AM, Scognamiglio T, Gudas LJ. The molecular features of tongue epithelium treated with the carcinogen 4-nitroquinoline-1-oxide and alcohol as a model for HNSCC. Carcinogenesis 2013; 34:2673-81. [PMID: 23784083 DOI: 10.1093/carcin/bgt223] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common type of cancer affecting humans worldwide. To determine the potential mechanisms by which chronic tobacco and alcohol abuse lead to HNSCC of the oral cavity, we have used both the 4-nitroquinoline-1-oxide (4-NQO) murine oral carcinogenesis and the Meadows-Cook alcohol models. In this study, we treated mice with 4-NQO in drinking water for 10 weeks and then administered 20% (w:v) ethanol (EtOH) for another 10 weeks. We observed increased levels and/or activation of signaling proteins [p38 mitogen-activated protein kinase (MAPK), β-catenin and Erk 1/2] that are typically altered during HNSCC initiation in humans. We found that EtOH administration alone increased the expression of p38 MAPK but not Erk 1/2 MAPK. Total β-catenin levels in the tongues increased by 2- to 3-fold after 4-NQO treatment, with or without EtOH. However, EtOH combined with 4-NQO reduced phosphorylated β-catenin levels, whereas 4-NQO treatment alone did not. These data implicate EtOH as a regulator of β-catenin signaling in this HNSCC model. We also utilized K14-CreER(TAM); ROSA26 mice to mark permanently stem/progenitor cells in the tongue epithelia. We found that 4-NQO alone and 4-NQO plus EtOH treatment resulted in massive, horizontal expansion of stem/progenitor cell populations arising from single stem cells in the basal layer of the epithelia. This expansion is consistent with carcinogen-associated, symmetric division of stem/progenitor cells. Our data suggest that specific therapeutic targets for prevention of HNSCC of the oral cavity associated with both alcohol and tobacco use are p38 MAPK and β-catenin.
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Wang LP, Chen SW, Zhuang SM, Li H, Song M. Galectin-3 accelerates the progression of oral tongue squamous cell carcinoma via a Wnt/β-catenin-dependent pathway. Pathol Oncol Res 2013; 19:461-74. [PMID: 23519607 DOI: 10.1007/s12253-013-9603-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 01/04/2013] [Indexed: 12/11/2022]
Abstract
The purpose of this study was to elucidate the clinicopathological significance and mechanism of action of galectin-3 in oral tongue squamous cell carcinoma (OTSCC). Here, the expression of galectin-3 was quantified in OTSCC (n = 68) and paired OTSCC and normal surrounding tissues (n = 10) using immunohistochemical staining. Tca8113 OTSCC cells were transfected with a plasmid expressing galectin-3 cDNA or siRNA against galectin-3. Cell proliferation, migration and invasion were measured using the MTT assay, Matrigel-coated Transwell migration assay and wound healing assay. The effect of galectin-3 on the Wnt/β-catenin signaling pathway and epithelial mesenchymal transition (EMT) were investigated using a plasmid expressing the Wnt antagonist dickkopf 1 (DKK1) and Western blotting. Galectin-3 was expressed at significantly higher levels in OTSCC than the normal adjacent tissues; galectin-3 expression correlated strongly with pathological stage, pathological grade and lymph node invasion in OTSCC. Overexpression of galectin-3 promoted Tca8113 cell proliferation, migration and invasion, upregulated Wnt protein expression, activated β-catenin and induced the EMT; knockdown of galectin-3 had the opposite effects. Co-transfection of Tca8113 cells overexpressing galectin-3 with the Wnt antagonist DKK1 reduced the ability of galectin-3 to increase cell proliferation, migration and invasion, reduced upregulation of Wnt, inhibited β-catenin activation and abrogated the EMT, demonstrating that the Wnt/β-catenin signaling pathway mediated the effects of galectin-3. Galectin-3 plays an important role in the progression of OTSCC via activation of the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Li-Ping Wang
- State Key Laboratory of Oncology in South China and Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, 651 Dongfeng Dong Road, Guangzhou 510060, People's Republic of China
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Fracalossi ACC, Comparini L, Funabashi K, Godoy C, Iwamura ESM, Nascimento FD, Nader HB, Oshima CTF, Ribeiro DA. Ras gene mutation is not related to tumour invasion during rat tongue carcinogenesis induced by 4-nitroquinoline 1-oxide. J Oral Pathol Med 2011; 40:325-33. [DOI: 10.1111/j.1600-0714.2010.00987.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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