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Elia E, Caneparo C, McMartin C, Chabaud S, Bolduc S. Tissue Engineering for Penile Reconstruction. Bioengineering (Basel) 2024; 11:230. [PMID: 38534504 DOI: 10.3390/bioengineering11030230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
The penis is a complex organ with a development cycle from the fetal stage to puberty. In addition, it may suffer from either congenital or acquired anomalies. Penile surgical reconstruction has been the center of interest for many researchers but is still challenging due to the complexity of its anatomy and functionality. In this review, penile anatomy, pathologies, and current treatments are described, including surgical techniques and tissue engineering approaches. The self-assembly technique currently applied is emphasized since it is considered promising for an adequate tissue-engineered penile reconstructed substitute.
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Affiliation(s)
- Elissa Elia
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - Catherine McMartin
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada
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Lee DH, Yun DW, Kim YH, Im GB, Hyun J, Park HS, Bhang SH, Choi SH. Various Three-Dimensional Culture Methods and Cell Types for Exosome Production. Tissue Eng Regen Med 2023; 20:621-635. [PMID: 37269439 PMCID: PMC10313642 DOI: 10.1007/s13770-023-00551-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/06/2023] [Accepted: 05/02/2023] [Indexed: 06/05/2023] Open
Abstract
Cell-based therapies have been used as promising treatments for several untreatable diseases. However, cell-based therapies have side effects such as tumorigenesis and immune responses. To overcome these side effects, therapeutic effects of exosomes have been researched as replacements for cell-based therapies. In addition, exosomes reduced the risk that can be induced by cell-based therapies. Exosomes contain biomolecules such as proteins, lipids, and nucleic acids that play an essential role in cell-cell and cell-matrix interactions during biological processes. Since the introduction of exosomes, those have been proven perpetually as one of the most effective and therapeutic methods for incurable diseases. Much research has been conducted to enhance the properties of exosomes, including immune regulation, tissue repair, and regeneration. However, yield rate of exosomes is the critical obstacle that should be overcome for practical cell-free therapy. Three-dimensional (3D) culture methods are introduced as a breakthrough to get higher production yields of exosomes. For example, hanging drop and microwell were well known 3D culture methods and easy to use without invasiveness. However, these methods have limitation in mass production of exosomes. Therefore, a scaffold, spinner flask, and fiber bioreactor were introduced for mass production of exosomes isolated from various cell types. Furthermore, exosomes treatments derived from 3D cultured cells showed enhanced cell proliferation, angiogenesis, and immunosuppressive properties. This review provides therapeutic applications of exosomes using 3D culture methods.
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Affiliation(s)
- Dong-Hyun Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Dae Won Yun
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Yeong Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Gwang-Bum Im
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Jiyu Hyun
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Hyun Su Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-Do, 16419, Republic of Korea.
| | - Sang Hyoun Choi
- Department of Radiation Oncology, Korea Institute of Radiological and Medical Science, Seoul, Republic of Korea.
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Bitaraf M, Muhammadnejad S, Azimzadeh A, Tanourlouee SB, Amini E, Zolbin MM, Kajbafzadeh A. Evaluation of direct intramural injection to the bladder wall as a method for developing orthotopic tumor models. Animal Model Exp Med 2022; 5:575-581. [PMID: 36451547 PMCID: PMC9773300 DOI: 10.1002/ame2.12293] [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: 08/15/2022] [Accepted: 11/08/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Bladder cancer poses a great burden on society and its high rate of recurrence and treatment failure necessitates use of appropriate animal models to study its pathogenesis and test novel treatments. Orthotopic models are superior to other types since they provide a normal microenvironment. Four methods are described for developing bladder cancer models inside the animal's bladder. Direct intramural injection is one of these methods and is widely used. However, its efficacy in model development has not yet been studied. We aimed to evaluate the efficacy and success rate of the direct intramural injection method of developing an orthotopic model for the study of bladder cancer. METHOD Tumor cell lines were prepared in four microtubes. Aliquots of 200 × 103 cells were injected through a 27 gauge needle into the ventral wall of the bladders of 4 male and 4 female BALB/c mice following a midline 1 cm laparotomy incision. In addition, 1 million cells from each microtube were injected into the flanks of control mice. To prevent infection and alleviate pain, 5 mg/kg enrofloxacin and 2.5 mg/kg flunixin meglumine, respectively, were injected subcutaneously. RESULTS Tumors formed in all mice, resulting in 100% take rate and zero post-operation mortality. Surgery time was ≤15 min per mouse. In two mice, tumors were found in the peritoneal space as well. CONCLUSION Direct intramural injection is a rapid, reliable, and reproducible method for developing orthotopic models of bladder cancer. It can be done on both male and female mice and only requires readily available surgical tools. However, needle track can result in cell spillage and peritoneal tumors.
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Affiliation(s)
- Masoud Bitaraf
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research InstituteTehran University of Medical SciencesTehranIran
| | - Samad Muhammadnejad
- Gene Therapy Research CenterDigestive Diseases Research Institute, Tehran University of Medical SciencesTehranIran
| | - Ashkan Azimzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research InstituteTehran University of Medical SciencesTehranIran
| | - Saman Behboodi Tanourlouee
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research InstituteTehran University of Medical SciencesTehranIran
| | - Erfan Amini
- Uro‐oncology Research CenterTehran University of Medical SciencesTehranIran
| | - Masoumeh Majidi Zolbin
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research InstituteTehran University of Medical SciencesTehranIran
| | - Abdol‐Mohammad Kajbafzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research InstituteTehran University of Medical SciencesTehranIran
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Chen H, Zhang W, Maskey N, Yang F, Zheng Z, Li C, Wang R, Wu P, Mao S, Zhang J, Yan Y, Li W, Yao X. Urological cancer organoids, patients' avatars for precision medicine: past, present and future. Cell Biosci 2022; 12:132. [PMID: 35986387 PMCID: PMC9389738 DOI: 10.1186/s13578-022-00866-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022] Open
Abstract
Urological cancers are common malignant cancers worldwide, with annually increasing morbidity and mortality rates. For decades, two-dimensional cell cultures and animal models have been widely used to study the development and underlying molecular mechanisms of urological cancers. However, they either fail to reflect cancer heterogeneity or are time-consuming and labour-intensive. The recent emergence of a three-dimensional culture model called organoid has the potential to overcome the shortcomings of traditional models. For example, organoids can recapitulate the histopathological and molecular diversity of original cancer and reflect the interaction between cancer and surrounding cells or stroma by simulating tumour microenvironments. Emerging evidence suggests that urine-derived organoids can be generated, which could be a novel non-invasive liquid biopsy method that provides new ideas for clinical precision therapy. However, the current research on organoids has encountered some bottlenecks, such as the lack of a standard culture process, the need to optimize the culture medium and the inability to completely simulate the immune system in vivo. Nonetheless, cell co-culture and organoid-on-a-chip have significant potential to solve these problems. In this review, the latest applications of organoids in drug screening, cancer origin investigation and combined single-cell sequencing are illustrated. Furthermore, the development and application of organoids in urological cancers and their challenges are summarised.
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Tse RTH, Zhao H, Wong CYP, Chiu PKF, Teoh JYC, Ng CF. Current status of organoid culture in urological malignancy. Int J Urol 2021; 29:102-113. [PMID: 34643976 DOI: 10.1111/iju.14727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/21/2021] [Indexed: 12/28/2022]
Abstract
Urological cancers are common malignancies worldwide. Several conventional models, for example, two-dimensional cell culture and animal models have been used for decades to study tumor genetics. Nonetheless, these methods have limitations in reflecting the real tumor microenvironment in vivo, thereby hindering the development of anti-cancer therapeutic agents. Recently, three-dimensional culture models have gained attention because they can overcome the drawbacks of traditional methods. Above all, three-dimensional organoid models are able to mimic the tumor microenvironment in human bodies more closely as they are able to demonstrate the interactions between cells and extracellular matrix. This type of model has therefore extended our understanding of urological cancers. Tumor cells in organoid models can also be co-cultured with other cellular components, such as peripheral blood lymphocytes, and allow further understanding of the effect of tumor microenvironments on tumor growth. Furthermore, organoid models allow a prolonged culturing period, therefore, tumor evolution, progression and maintenance can also be assessed. Organoid models can be derived from each specific patient, and this facilitates investigation of individual cancer-specific mutations and their subtypes. As a result, the development of personalized medication targeting the signaling pathways or biomolecules of interest will be possible. In the present review, we summarize the development and applications of three-dimensional organoid cultures in urological cancers, mainly focusing on prostate, urinary bladder and kidney cancers, and assess the future prospects of this model.
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Affiliation(s)
- Ryan Tsz-Hei Tse
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Hongda Zhao
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Christine Yim-Ping Wong
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Peter Ka-Fung Chiu
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Jeremy Yuen-Chun Teoh
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi-Fai Ng
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
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Tu J, Luo X, Liu H, Zhang J, He M. Cancer spheroids derived exosomes reveal more molecular features relevant to progressed cancer. Biochem Biophys Rep 2021; 26:101026. [PMID: 34095553 PMCID: PMC8167213 DOI: 10.1016/j.bbrep.2021.101026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 01/30/2023] Open
Abstract
Cancer cell spheroids have been shown to be more physiologically relevant to native tumor tissue than monolayer 2D culture cells. Due to enhanced intercellular communications among cells in spheroids, spheroid secreted exosomes which account for transcellular transportation should exceed those from 2D cell culture and may display a different expression pattern of miRNA or protein. To test this, we employed a widely used pancreatic cancer cell line, PANC-1, to create 3D spheroids and compared exosomes generated by both 2D cell culture and 3D PANC-1 spheroids. We further measured and compared exosomal miRNA and GPC-1 protein expression with qRT-PCR and enzyme-linked immunosorbent assay, respectively. It showed that PANC-1 cells cultured in 3D spheroids can produce significantly more exosomes than PANC-1 2D cells and exosomal miRNA and GPC-1 expression derived from spheroids show more features relevant to the progression of pancreatic cancer. These findings point to the potential importance of using spheroids as in vitro model to study cancer development and progression.
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Cao G, Zhang C, Tian X, Jing G, Zhou X, Yan T. circCEP128 Knockdown Suppresses Bladder Cancer Progression via Regulating microRNA-515-5p/SDC1 Axis. Cancer Manag Res 2021; 13:2885-2896. [PMID: 33833571 PMCID: PMC8020055 DOI: 10.2147/cmar.s288229] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/02/2021] [Indexed: 12/29/2022] Open
Abstract
Background Dysregulation of circular RNAs (circRNAs) is associated with bladder cancer progression. Nevertheless, the mechanisms of circRNA centrosomal protein 128 (circCEP128) underlying bladder cancer progression remain poorly understood. Methods The levels of circCEP128, microRNA-515-5p (miR-515-5p) and syndecan-1 (SDC1) were determined via reverse transcription-quantitative polymerase chain reaction or Western blot. The effects of circCEP128, miR-515-5p and SDC1 on bladder cancer progression were investigated via MTT and colony formation assays, flow cytometry and transwell analysis and subcutaneous xenograft experiments. The interactions between miR-515-5p and circCEP128 or SDC1 were examined through bioinformatics prediction and luciferase reporter assay. Results circCEP128 and SDC1 were highly expressed and miR-515-5p was low expressed in bladder cancer tissues and cells. circCEP128 knockdown hindered cell proliferation, migration and invasion and promoted cell apoptosis in bladder cancer. circCEP128 loss increased miR-515-5p expression through direct interaction in bladder cancer cells. MiR-515-5p depletion mitigated the influences of circCEP128 knockdown on bladder cancer cell phenotypes. SDC1 was a direct target of miR-515-5p. circCEP128 positively regulated SDC1 expression via miR-515-5p. MiR-515-5p restrained the malignant progression of bladder cancer cells by decreasing SDC1 expression. circCEP128 knockdown hindered the growth of bladder cancer xenograft tumors by up-regulating miR-515-5p and down-regulating SDC1. Conclusion circCEP128 knockdown hampered the tumorigenesis and progression of bladder cancer by regulating miR-515-5p/SDC1 axis in vitro and in vivo, deepening our understanding on the molecular mechanisms of circCEP128 in bladder cancer.
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Affiliation(s)
- Guanghui Cao
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
| | - Chan Zhang
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
| | - Xiangyong Tian
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
| | - Gaopeng Jing
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
| | - Xiaolin Zhou
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
| | - Tianzhong Yan
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, 450003, People's Republic of China
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Emerging Roles of Urine-Derived Components for the Management of Bladder Cancer: One Man's Trash Is Another Man's Treasure. Cancers (Basel) 2021; 13:cancers13030422. [PMID: 33498666 PMCID: PMC7865365 DOI: 10.3390/cancers13030422] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Urinary bladder cancer (UBC) is one of the most common and deadly cancers worldwide, with many patients not responding to chemotherapy, or presenting with serious adverse effects after chemotherapy. Yet, current bench side assays provide limited accuracy for predicting therapeutic response to chemotherapeutic drugs. The aim of this review is to demonstrate the potential of urinary-derived extracellular vesicles and UBC-organoids to serve as predictive biomarkers for this cancer. Specifically, molecular subtyping of urine-derived extracellular vesicles has the potential to provide insights into the molecular stratification of the tumor, while urinary organoids will allow for individualized chemotherapy testing in the context of precision medicine. Abstract Urinary bladder cancer (UBC) is the most common malignancy of the urinary tract in humans, with an estimated global prevalence of 1.1 million cases over 5 years. Because of its high rates of recurrence and resistance to chemotherapy, UBC is one of the most expensive cancers to treat, resulting in significant health care costs. The development of innovative molecular and cellular tools is necessary to refine patient stratification and help predict response to treatment. Urine is an underused resource of biological components shed from bladder tumors, such as exfoliated cells and extracellular vesicles, that could serve as molecular fingerprints and provide valuable biological insights into tumor phenotype and mechanisms of resistance to chemotherapy. Additionally, characterization of urine-derived extracellular vesicles and cells could be used as reliable biomarkers for prediction of response to neoadjuvant therapy.
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Chen D, Cheng L, Cao H, Liu W. Role of microRNA-381 in bladder cancer growth and metastasis with the involvement of BMI1 and the Rho/ROCK axis. BMC Urol 2021; 21:5. [PMID: 33407350 PMCID: PMC7789167 DOI: 10.1186/s12894-020-00775-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 12/21/2020] [Indexed: 12/24/2022] Open
Abstract
Background Emerging evidence has noted the important participation of microRNAs (miRNAs) in several human diseases including cancer. This research was launched to probe the function of miR-381 in bladder cancer (BCa) progression. Methods Twenty-eight patients with primary BCa were included in this study. Cancer tissues and the adjacent normal tissues were obtained. Aberrantly expressed miRNAs in BCa tissues were analyzed using miRNA microarrays. miR-381 expression in the bladder and paired tumor tissues, and in BCa and normal cell lines was determined. The target relationship between miR-381 and BMI1 was predicted online and validated through a luciferase assay. Gain-of-functions of miR-381 and BMI1 were performed to identify their functions on BCa cell behaviors as well as tumor growth in vivo. The involvement of the Rho/ROCK signaling was identified. Results miR-381 was poor regulated in BCa tissues and cells (all p < 0.05). A higher miR-381 level indicated a better prognosis of patients with BCa. Artificial up-regulation of miR-381 inhibited proliferation, invasion, migration, resistance to apoptosis, and tumor formation ability of BCa T24 and RT4 cells (all p < 0.05). miR-381 was found to directly bind to BMI1 and was negatively correlated with BMI1 expression. Overexpression of BMI1 partially blocked the tumor suppressing roles of miR-381 in cell malignancy and tumor growth (all p < 0.05). In addition, miR-381 led to decreased RhoA phosphorylation and ROCK2 activation, which were also reversed by BMI1 (all p < 0.05). Artificial inhibition of the Rho/ROCK signaling blocked the functions of BMI1 in cell growth and metastasis (all p < 0.05). Conclusion The study evidenced that miR-381 may act as a beneficiary biomarker in BCa patients. Up-regulation of miR-381 suppresses BCa development both in vivo and in vitro through BMI1 down-regulation and the Rho/ROCK inactivation.
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Affiliation(s)
- Dayin Chen
- Department of Urology, The First Affiliated Hospital of Jiamusi University, No. 348, Dexiang Street, Jiamusi, 154002, Heilongjiang, People's Republic of China
| | - Liang Cheng
- Department of Urology, The First Affiliated Hospital of Jiamusi University, No. 348, Dexiang Street, Jiamusi, 154002, Heilongjiang, People's Republic of China
| | - Huifeng Cao
- Department of Urology, The First Affiliated Hospital of Jiamusi University, No. 348, Dexiang Street, Jiamusi, 154002, Heilongjiang, People's Republic of China.
| | - Wensi Liu
- Department of Urology, The First Affiliated Hospital of Jiamusi University, No. 348, Dexiang Street, Jiamusi, 154002, Heilongjiang, People's Republic of China
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Wang W, Ding Y, Lu Q, Qi J, Zhang S. The development of a behaviour questionnaire for stoma self-management for persons with bladder cancer and an ileal conduit. J Adv Nurs 2020; 77:1085-1095. [PMID: 33230885 DOI: 10.1111/jan.14662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/30/2020] [Accepted: 10/29/2020] [Indexed: 01/21/2023]
Abstract
AIMS To develop and preliminarily test the reliability and validity of a behaviour questionnaire for stoma self-management for patients with bladder cancer after radical cystectomy and ileal conduit. DESIGN A psychometric instrument validation study conducted in two phases. METHODS The initial version of behaviour questionnaire was developed based on guidelines for people living with a stoma. Five experts validated the content of the preliminary 29-item questionnaire. A cross-sectional survey was then conducted in Beijing for preliminary reliability and validity tests between 4 December 2017-28 April 2018. A total of 151 participants in the survey, 147 of whom completed the study and 16 completed a 2-week test-retest reliability test. RESULTS The content validity indices were satisfied. A principal component analysis with direct oblimin rotation was performed. Sixteen items were retained, and three factors were identified, namely, pouching system change, emotional management, and role management. The 16-item questionnaire showed acceptable internal consistency and test-retest reliability. The mediational effect of self-management behaviour on the relationship between self-efficacy and stoma quality of life was confirmed via convergent validity testing. CONCLUSION The behaviour questionnaire for stoma self-management appears to have adequate initial reliability and validity. More observational and interventional studies need to be conducted for further evaluation of its psychometric properties. IMPACT This study developed a reliable instrument to measure self-management behaviours for persons living with a stoma after radical cystectomy and ileal conduit. The questionnaire has practical value for both healthcare providers and researchers working in this field. The 16-item questionnaire can be administered quickly in clinical practice. Based on the questionnaire and the elicited mediational model, psycho-education programs tailored to improve self-management should be designed, implemented, and re-inspected regarding their effectiveness for the target population in China.
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Affiliation(s)
- Wei Wang
- Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Yanming Ding
- Peking University First Hospital, Beijing, China
| | - Qian Lu
- School of Nursing, Peking University, Beijing, China
| | - Jianing Qi
- Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Shuying Zhang
- Tongji University School of Medicine, Tongji University, Shanghai, China
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Analysis of open chromatin regions in bladder cancer links β-catenin mutations and Wnt signaling with neuronal subtype of bladder cancer. Sci Rep 2020; 10:18667. [PMID: 33122695 PMCID: PMC7596510 DOI: 10.1038/s41598-020-75688-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/19/2020] [Indexed: 01/03/2023] Open
Abstract
Urothelial carcinoma of the bladder is the most frequent bladder cancer affecting more than 400,000 people each year. Histopathologically, it is mainly characterized as muscle invasive bladder cancer (MIBC) and non-muscle invasive bladder cancer (NMIBC). Recently, the studies largely driven by consortiums such as TCGA identified the mutational landscape of both MIBC and NMIBC and determined the molecular subtypes of bladder cancer. Because of the exceptionally high rate of mutations in chromatin proteins, bladder cancer is thought to be a disease of chromatin, pointing out to the importance of studying epigenetic deregulation and the regulatory landscape of this cancer. In this study, we have analyzed ATAC-seq data generated for MIBC and integrated our findings with gene expression and DNA methylation data to identify subgroup specific regulatory patterns for MIBC. Our computational analysis revealed three MIBC regulatory clusters, which we named as neuronal, non-neuronal and luminal outlier. We have identified target genes of neuronal regulatory elements to be involved in WNT signaling, while target genes of non-neuronal and luminal outlier regulatory regions were enriched in epithelial differentiation and drug metabolism, respectively. Neuronal regulatory elements were determined to be ß-catenin targets (p value = 3.59e−08) consisting of genes involved in neurogenesis such as FGF9, and PROX1, and significantly enriched for TCF/LEF binding sites (p value = 1e−584). Our results showed upregulation of ß-catenin targets regulated by neuronal regulatory elements in three different cohorts, implicating ß-catenin signature in neuronal bladder cancer. Further, integration with mutation data revealed significantly higher oncogenic exon 3 ß-catenin mutations in neuronal bladder cancer compared to non-neuronal (odds ratio = 31.33, p value = 1.786e−05). Our results for the first time identify regulatory elements characterizing neuronal bladder cancer and links these neuronal regulatory elements with WNT signaling via mutations in β-catenin and its destruction complex components.
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Packeiser EM, Hewicker-Trautwein M, Thiemeyer H, Mohr A, Junginger J, Schille JT, Murua Escobar H, Nolte I. Characterization of six canine prostate adenocarcinoma and three transitional cell carcinoma cell lines derived from primary tumor tissues as well as metastasis. PLoS One 2020; 15:e0230272. [PMID: 32168360 PMCID: PMC7069630 DOI: 10.1371/journal.pone.0230272] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 02/25/2020] [Indexed: 12/13/2022] Open
Abstract
Canine prostate adenocarcinoma (PAC) and transitional cell carcinoma (TCC) of prostate and urinary bladder are highly invasive and metastatic tumors of closely neighbored organs. Cell lines are valuable tools to investigate tumor mechanisms and therapeutic approaches in vitro. PAC in dogs is infrequent, difficult to differentiate from TCC and usually characterized by poor prognosis, enhancing the value of the few available cell lines. However, as cell lines adapt to culturing conditions, a thorough characterization, ideally compared to original tissue, is indispensable. Herein, six canine PAC cell lines and three TCC cell lines were profiled by immunophenotype in comparison to respective original tumor tissues. Three of the six PAC cell lines were derived from primary tumor and metastases of the same patient. Further, two of the three TCC cell lines were derived from TCCs invading into or originating from the prostate. Cell biologic parameters as doubling times and chemoresistances to commonly used drugs in cancer treatment (doxorubicin, carboplatin and meloxicam) were assessed. All cell lines were immunohistochemically close to the respective original tissue. Compared to primary tumor cell lines, metastasis-derived cell lines were more chemoresistant to doxorubicin, but equally susceptive to carboplatin treatment. Two cell lines were multiresistant. COX-2 enzyme activity was demonstrated in all cell lines. However, meloxicam inhibited prostaglandin E2 production in only seven of nine cell lines and did neither influence metabolic activity, nor proliferation. The characterized nine cell lines represent excellent tools to investigate PAC as well as TCC in prostate and urinary bladder of the dog. Furthermore, the profiled paired cell lines from PAC primary tumor and metastasis provide the unique opportunity to investigate metastasis-associated changes PAC cells undergo in tumor progression. The combination of nine differently chemoresistant PAC and TCC cell lines resembles the heterogeneity of canine lower urinary tract cancer.
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Affiliation(s)
- Eva-Maria Packeiser
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Internal Medicine, Medical Clinic III, Clinic for Hematology, Oncology and Palliative Care, University Medical Centre Rostock, Rostock, Germany
| | | | - Heike Thiemeyer
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Annika Mohr
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Johannes Junginger
- Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Jan Torben Schille
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Internal Medicine, Medical Clinic III, Clinic for Hematology, Oncology and Palliative Care, University Medical Centre Rostock, Rostock, Germany
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Internal Medicine, Medical Clinic III, Clinic for Hematology, Oncology and Palliative Care, University Medical Centre Rostock, Rostock, Germany
- * E-mail: (HME); (IN)
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- * E-mail: (HME); (IN)
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Immunotherapy for bladder cancer: the fight is on. World J Urol 2018; 36:1699-1701. [PMID: 30167832 DOI: 10.1007/s00345-018-2468-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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