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A new heterotropic vascularized model of total urinary bladder transplantation in a rat model. Sci Rep 2021; 11:3775. [PMID: 33580157 PMCID: PMC7881011 DOI: 10.1038/s41598-021-83128-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 01/04/2021] [Indexed: 11/08/2022] Open
Abstract
This study developed a new procedure of urinary bladder transplantation on a rat model (n = 40). Heterotopic urinary bladder transplantation (n = 10) in the right groin vessels was performed. Direct urinary bladder examination, microangiography, histological analysis, and India ink injection were performed to evaluate the proposed method's functionality. Observation time was four weeks. One week after the procedure, the graft survival rate was 80%, two urinary bladders were lost due to anastomosis failure. The rest of the grafts survived two weeks without any complications. Lack of transitional epithelium or smooth muscle layer loss and lack of inflammatory process development were observed. This study was performed in order to obtain the necessary knowledge about urinary bladder transplantation. The proposed technique offers a new approach to the existing orthotropic models.
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Szylberg Ł, Bodnar M, Lebioda A, Krepska P, Kowalewski A, Bręborowicz G, Marszałek A. Differences in the Expression of TLR-2, NOD2, and NF-κB in Placenta Between Twins. Arch Immunol Ther Exp (Warsz) 2018; 66:463-470. [PMID: 29796818 PMCID: PMC6245244 DOI: 10.1007/s00005-018-0514-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 05/08/2018] [Indexed: 12/12/2022]
Abstract
Dizygotic twins share the same type of genetic relationship as non-twin siblings. Whereas monozygotic (MZ) twins are considered to have identical genetic material, they still differ. There is a number of reasons for early MZ twin discordance, including differences in the in utero environment, stochasticity, genetic mosaicism, and epigenetic factors. During gestation, the efficient innate immune system is of utmost importance. Our study was based on immunohistochemical evaluation of the differences in innate immune protein expression (TLR-2, NOD2, and NF-κB) in the 95 placentas between twins. Our study revealed statistical significant differences between diamniotic–dichorionic and monoamniotic–dichorionic twins. Monoamniotic–monochorionic twins exhibited no significant differences in protein expressions. To identify epigenetic factors causing the differences between twins, we made a series of comparisons with clinical data. The study revealed more cases with infections, miscarriages, in vitro fertilization, and premature rupture of membranes within the group with higher differences level of NF-κB, NOD2 and TLR-2 between twins. In case of twin-to-twin transfusion syndrome, there were no significant differences in innate immune protein expressions between twins. These results show that dissimilar genetic material and separate in utero environment promote discordance in innate immune protein expressions between twins. Moreover, additional blood flow between twins may be favorable in life-threatening conditions ensuring similar microenvironment.
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Affiliation(s)
- Łukasz Szylberg
- Chair and Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland. .,Chair and Department of Oncologic Pathology and Prophylactics, Greater Poland Cancer Center, Poznań University of Medical Sciences and Department of Oncologic Pathology, Poznan, Poland. .,Department of Pathomorphology, Military Clinical Hospital, Bydgoszcz, Poland.
| | - Magdalena Bodnar
- Chair and Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Anna Lebioda
- Department and Clinic of Perinatology and Gynecology, Poznań University of Medical Sciences, Poznan, Poland
| | - Patrycja Krepska
- Department of Obstetrics and Gynecology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Adam Kowalewski
- Chair and Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Grzegorz Bręborowicz
- Department and Clinic of Perinatology and Gynecology, Poznań University of Medical Sciences, Poznan, Poland
| | - Andrzej Marszałek
- Chair and Department of Oncologic Pathology and Prophylactics, Greater Poland Cancer Center, Poznań University of Medical Sciences and Department of Oncologic Pathology, Poznan, Poland
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Liu Y, Liu J, Wang L, Yang X, Liu X. MicroRNA‑195 inhibits cell proliferation, migration and invasion in laryngeal squamous cell carcinoma by targeting ROCK1. Mol Med Rep 2017; 16:7154-7162. [PMID: 28901478 DOI: 10.3892/mmr.2017.7460] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 07/20/2017] [Indexed: 11/05/2022] Open
Abstract
Laryngeal carcinoma is the second most common malignancy of the head and neck cancers. The most common type of laryngeal carcinoma comprises laryngeal squamous cell carcinoma (LSCC), which accounts for ~95% of laryngeal carcinoma cases. Despite great progress in diagnostic and therapeutic techniques over the last few decades, the prognosis for patients with LSCC remains poor. A number of studies reported that various miRNAs are dysregulated in LSCC and serve critical roles in LSCC tumorigenesis and tumor development. The present study aimed to evaluate the expression level of microRNA (miR)‑195 and its possible roles in LSCC. Briefly, miR‑195 was downregulated in LSCC tissues and cell lines. In addition, low miR‑195 expression was significantly correlated with lymph node metastasis and TNM stage of LSCC patients. Further study has demonstrated that miR‑195 overexpression suppressed cell proliferation, migration and invasion of LSCC. Moreover, rho‑associated kinase 1 (ROCK1) was identified as a direct target gene of miR‑195. Downregulation of ROCK1 exerted similar roles to that of miR‑195 overexpression in LSCC, suggesting ROCK1 was a direct downstream target of miR‑195. These findings elucidated a novel molecular mechanism for the pathogenic mechanism in LSCC carcinogenesis and progression, and may have a potential role in the treatment of patients with LSCC.
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Affiliation(s)
- Yang Liu
- Department of Otolaryngology, Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Jixiang Liu
- Department of Otolaryngology, Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Lin Wang
- Department of Otolaryngology, Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Xiangli Yang
- Department of Otolaryngology, Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Xiang Liu
- Department of Otolaryngology, Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
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Bednarek K, Kiwerska K, Szaumkessel M, Bodnar M, Kostrzewska-Poczekaj M, Marszalek A, Janiszewska J, Bartochowska A, Jackowska J, Wierzbicka M, Grenman R, Szyfter K, Giefing M, Jarmuz-Szymczak M. Recurrent CDK1 overexpression in laryngeal squamous cell carcinoma. Tumour Biol 2016; 37:11115-26. [PMID: 26912061 PMCID: PMC4999469 DOI: 10.1007/s13277-016-4991-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/11/2016] [Indexed: 12/12/2022] Open
Abstract
In this study, we analyzed the expression profile of four genes (CCNA2, CCNB1, CCNB2, and CDK1) in laryngeal squamous cell carcinoma (LSCC) cell lines and tumor samples. With the application of microarray platform, we have shown the overexpression of these genes in all analyzed LSCC samples in comparison to non-cancer controls from head and neck region. We have selected CDK1 for further analysis, due to its leading role in cell cycle regulation. It is a member of the Ser/Thr protein kinase family of proven oncogenic properties. The results obtained for CDK1 were further confirmed with the application of reverse transcription quantitative polymerase chain reaction (RT-qPCR) technique, Western blot, and immunohistochemistry (IHC). The observed upregulation of CDK1 in laryngeal squamous cell carcinoma has encouraged us to analyze for genetic mechanisms that can be responsible this phenomenon. Therefore, with the application of array-CGH, sequencing analysis and two methods for epigenetic regulation analysis (DNA methylation and miRNA expression), we tried to identify such potential mechanisms. Our attempts to identify the molecular mechanisms responsible for observed changes failed as we did not observe significant alterations neither in the DNA sequence nor in the gene copy number that could underline CDK1 upregulation. Similarly, the pyrosequencing and miRNA expression analyses did not reveal any differences in methylation level and miRNA expression, respectively; thus, these mechanisms probably do not contribute to elevation of CDK1 expression in LSCC. However, our results suggest that alteration of CDK1 expression on both mRNA and protein level probably appears on the very early step of carcinogenesis.
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Affiliation(s)
- K Bednarek
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - K Kiwerska
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - M Szaumkessel
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - M Bodnar
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - A Marszalek
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Oncologic Pathology, Greater Poland Cancer Centre, Poznan, Poland
| | - J Janiszewska
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland
| | - A Bartochowska
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - J Jackowska
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - M Wierzbicka
- Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - R Grenman
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Medical Biochemistry, Turku University Hospital and University of Turku, Turku, Finland
| | - K Szyfter
- Department of Audiology and Phoniatry, University of Medical Sciences, Poznan, Poland
| | - M Giefing
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland.,Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznan, Poland
| | - M Jarmuz-Szymczak
- Department of Cancer Genetics, Institute of Human Genetics, PAS, Poznan, Poland. .,Department of Hematology, University of Medical Sciences, Poznan, Poland.
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Yu W, Zhang G, Lu B, Li J, Wu Z, Ma H, Wang H, Lian R. MiR-340 impedes the progression of laryngeal squamous cell carcinoma by targeting EZH2. Gene 2015; 577:193-201. [PMID: 26656176 DOI: 10.1016/j.gene.2015.11.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/05/2015] [Accepted: 11/25/2015] [Indexed: 12/14/2022]
Abstract
Laryngeal squamous cell carcinoma (LSCC) is a common malignant tumor of the otolaryngeal region and accounts for 1-2% of all malignancies diagnosed worldwide. miR-340 down-regulation and EZH2 up-regulation have been frequently identified in multiple cancers, but the role of miR-340 and EZH2 in LSCC has not been explored. In this study, we investigated the regulative role of miR-340 in EZH2 expression and LSCC progression. The results showed that EZH2 was up-regulated and miR-340 was down-regulated in both Hep-2 cells and LSCC tissues. Molecularly, our results confirmed that miR-340 directly targeted EZH2 gene and inhibited EZH2 expression. MTT assay and BrdU assay showed that miR-340 transfection reduced the cell proliferation ability of Hep-2 cells. The transwell assay indicated that the invasion and migration ability of Hep-2 cells was dramatically inhibited by miR-340 transfection. In addition, miR-340 transfection induced cell apoptosis with concomitant enhancement of Bax, increase of Caspase-3 expression and activity, and reduction of Bcl-2 expression in Hep-2 cells. Both miR-340 transfection and EZH2 knockdown induced p27 expression and suppressed PI3K/Akt activation in Hep-2 cells. Strikingly, EZH2 knockdown reduced cell proliferation, and EZH2 overexpression significantly rescued the miR-340-mediated suppressive effect on cell proliferation. Moreover, miR-340 could obviously induce the inhibition of Hep-2 cell-derived tumor growth and EZH2/p27 expression ratio in vivo. Taken together, these data suggest that miR-340 impedes LSCC progression by targeting EZH2 with the possible mechanism to enhance the expression of anti-oncogene p27 and suppress PI3K/Akt activation, providing a novel target and a potential therapeutic pathway against LSCC.
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Affiliation(s)
- Wenfa Yu
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Guozheng Zhang
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Baocai Lu
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Jing Li
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Zhiyan Wu
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Huimin Ma
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Huimin Wang
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
| | - Rong Lian
- Department of Otolaryngology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan, PR China
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