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Hu D, Ge Y, Xi Y, Chen J, Wang H, Zhang C, Cui Y, He L, Su Y, Chen J, Hu C, Xiao H. MicroRNA-145 Gene Modification Enhances the Retention of Bone Marrow-Derived Mesenchymal Stem Cells within Corpus Cavernosum by Targeting Krüppel-Like Factor 4. World J Mens Health 2024; 42:638-649. [PMID: 38164035 PMCID: PMC11216959 DOI: 10.5534/wjmh.230149] [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: 06/01/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 01/03/2024] Open
Abstract
PURPOSE The poor retention and ambiguous differentiation of stem cells (SCs) within corpus cavernosum (CC) limit the cell application in erectile dysfunction (ED). Herein, the effects and mechanism of microRNA-145 (miR-145) gene modification on modulating the traits and fate of bone marrow-derived mesenchymal stem cells (BMSCs) were investigated. MATERIALS AND METHODS The effects of miR-145 on cell apoptosis, proliferation, migration, and differentiation were determined by flow cytometry, cell counting kit-8, transwell assays and myogenic induction. Then, the age-related ED rats were recruited to four groups including phosphate buffer saline, BMSC, vector-BMSC, overexpressed-miR-145-BMSC groups. After cell transplantation, the CC were harvested and prepared to demonstrate the retention and differentiation of BMSCs by immunofluorescent staining. Then, the target of miR-145 was verified by quantitative real-time polymerase chain reaction and immunohistochemical. After that, APTO-253, as an inducer of Krüppel-like factor 4 (KLF4), was introduced for rescue experiments in corpus cavernosum smooth muscle cells (CCSMCs) under the co-culture system. RESULTS In vitro, miR-145 inhibited the migration and apoptosis of BMSCs and promoted the differentiation of BMSCs into smooth muscle-like cells with stronger contractility. In vivo, the amount of 5-ethynyl-2'-deoxyuridine (EdU)+cells within CC was significantly enhanced and maintained in the miR-145 gene modified BMSC group. The EdU/CD31 co-staning was detected, however, no co-staining of EdU/α-actin was observed. Furthermore, miR-145, which secreted from the gene modified BMSCs, dampened the expression of KLF4. However, the effects of miR-145 on CCSMCs could be rescued by APTO-253. CONCLUSIONS Overall, miR-145 modification prolongs the retention of the transplanted BMSCs within the CC, and this effect might be attributed to the modulation of the miR-145/KLF4 axis. Consequently, our findings offer a promising and innovative strategy to enhance the local stem cell-based treatments.
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Affiliation(s)
- Daoyuan Hu
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yunlong Ge
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yuhang Xi
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jialiang Chen
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hua Wang
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chi Zhang
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yubin Cui
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lizhao He
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ying Su
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jun Chen
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Cheng Hu
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Hengjun Xiao
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
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Klangprapan J, Souza GR, Ferreira JN. Bioprinting salivary gland models and their regenerative applications. BDJ Open 2024; 10:39. [PMID: 38816372 PMCID: PMC11139920 DOI: 10.1038/s41405-024-00219-2] [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: 01/12/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024] Open
Abstract
OBJECTIVE Salivary gland (SG) hypofunction is a common clinical condition arising from radiotherapy to suppress head and neck cancers. The radiation often destroys the SG secretory acini, and glands are left with limited regenerative potential. Due to the complex architecture of SG acini and ducts, three-dimensional (3D) bioprinting platforms have emerged to spatially define these in vitro epithelial units and develop mini-organs or organoids for regeneration. Due to the limited body of evidence, this comprehensive review highlights the advantages and challenges of bioprinting platforms for SG regeneration. METHODS SG microtissue engineering strategies such as magnetic 3D bioassembly of cells and microfluidic coaxial 3D bioprinting of cell-laden microfibers and microtubes have been proposed to replace the damaged acinar units, avoid the use of xenogeneic matrices (like Matrigel), and restore salivary flow. RESULTS Replacing the SG damaged organ is challenging due to its complex architecture, which combines a ductal network with acinar epithelial units to facilitate a unidirectional flow of saliva. Our research group was the first to develop 3D bioassembly SG epithelial functional organoids with innervation to respond to both cholinergic and adrenergic stimulation. More recently, microtissue engineering using coaxial 3D bioprinting of hydrogel microfibers and microtubes could also supported the formation of viable epithelial units. Both bioprinting approaches could overcome the need for Matrigel by facilitating the assembly of adult stem cells, such as human dental pulp stem cells, and primary SG cells into micro-sized 3D constructs able to produce their own matrix and self-organize into micro-modular tissue clusters with lumenized areas. Furthermore, extracellular vesicle (EV) therapies from organoid-derived secretome were also designed and validated ex vivo for SG regeneration after radiation damage. CONCLUSION Magnetic 3D bioassembly and microfluidic coaxial bioprinting platforms have the potential to create SG mini-organs for regenerative applications via organoid transplantation or organoid-derived EV therapies.
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Affiliation(s)
- Jutapak Klangprapan
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Road, Pathumwan, Bangkok, 10330, Thailand
| | - Glauco R Souza
- Greiner Bio-one North America Inc., 4238 Capital Drive, Monroe, NC, 28110, USA
| | - João N Ferreira
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Road, Pathumwan, Bangkok, 10330, Thailand.
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Wang W, Liu Y, Zhu ZB, Pang K, Wang JK, Gu J, Li ZB, Wang J, Shi ZD, Han CH. Research Advances in Stem Cell Therapy for Erectile Dysfunction. BioDrugs 2024; 38:353-367. [PMID: 38520608 PMCID: PMC11055746 DOI: 10.1007/s40259-024-00650-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 03/25/2024]
Abstract
Erectile dysfunction (ED) is a common clinical condition that mainly affects men aged over 40 years. Various causes contribute to the progression of ED, including pelvic nerve injury, diabetes, metabolic syndrome, age, Peyronie's disease, smoking, and psychological disorders. Current treatments for ED are limited to symptom relief and do not address the root cause. Stem cells, with their powerful ability to proliferate and differentiate, are a promising approach for the treatment of male ED and are gradually gaining widespread attention. Current uses for treating ED have been studied primarily in experimental animals, with most studies observing improvements in erectile quality as well as improvements in erectile tissue. However, research on stem cell therapy for human ED is still limited. This article summarizes the recent literature on basic stem cell research on ED, including cavernous nerve injury, aging, diabetes, and sclerosing penile disease, and describes mechanisms of action and therapeutic effects of various stem cell therapies in experimental animals. Stem cells are also believed to interact with host tissue in a paracrine manner, and improved function can be supported through both implantation and paracrine factors. To date, stem cells have shown some preliminary promising results in animal and human models of ED.
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Affiliation(s)
- Wei Wang
- School of Medicine, Southeast University, Nanjing, China
| | - Ying Liu
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Zuo-Bin Zhu
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, China
| | - Kun Pang
- Department of Urology, Xuzhou Central Hospital, Xuzhou, China
| | - Jing-Kai Wang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jun Gu
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, China
| | - Zhen-Bei Li
- Department of Reproductive Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Jian Wang
- Department of Urology, Xuzhou Central Hospital, Xuzhou, China
| | - Zhen-Duo Shi
- Department of Urology, Xuzhou Central Hospital, Xuzhou, China.
| | - Cong-Hui Han
- School of Medicine, Southeast University, Nanjing, China.
- Department of Urology, Xuzhou Central Hospital, Xuzhou, China.
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Sun T, Liu Y, Yuan P, Jia Z, Yang J. Bibliometric and Visualization Analysis of Stem Cell Therapy for Erectile Dysfunction. Drug Des Devel Ther 2024; 18:731-746. [PMID: 38476204 PMCID: PMC10929656 DOI: 10.2147/dddt.s448483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Purpose As a common male disease, erectile dysfunction (ED) seriously affects the physical and mental health of patients. In recent years, studies have continued to point out the great potential of stem cell therapy (SCT) in the treatment of ED. The purpose of this study is to comprehensively analyze the research of SCT for ED and understand the development trends and research frontiers in this field. Methods Publications regarding SCT and ED were retrieved and collected from the Web of Science Core Collection. CiteSpace and VOSviewer software were then utilized for bibliometric and visualization analysis. Results A total of 524 publications were eventually included in this study. The annual number of publications in this field was increasing year by year. China and the USA were the two most productive countries. Lin GT, Lue TF and Lin CS, and the University of California San Francisco where they worked were the most productive research group and institution, respectively. The journal with the largest number of publications was The Journal of Sexual Medicine, and the following were mostly professional journals of urology and andrology. Diabetes mellitus-induced ED and cavernous nerve injury-related ED were the two most commonly constructed models of ED in studies. Concerning the types of stem cells, mesenchymal stem cells derived from adipose and bone marrow were most frequently used. Moreover, future research would mainly focus on exosomes, tissue engineering technology, extracorporeal shockwave therapy, and clinical translation. Conclusion The research of SCT for ED will receive increasing global attention in the future. Our study provided bibliometric and visualization analysis of published literature, helping researchers understand the global landscape and frontiers in this field. More preclinical and clinical studies should be conducted to more deeply explore the underlying mechanisms of treatment and promote clinical translation.
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Affiliation(s)
- Taotao Sun
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People’s Republic of China
| | - Yipiao Liu
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People’s Republic of China
| | - Penghui Yuan
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People’s Republic of China
| | - Zhankui Jia
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People’s Republic of China
| | - Jinjian Yang
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People’s Republic of China
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Podlasek CA. Nanotechnology in sexual medicine. J Sex Med 2024; 21:81-83. [PMID: 38314625 PMCID: PMC10839571 DOI: 10.1093/jsxmed/qdad149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/05/2023] [Accepted: 10/13/2023] [Indexed: 02/06/2024]
Abstract
Statement of Significance: There is significant potential for improvement in erectile function and prevention of erectile dysfunction if these diverse and novel nanotherapies can be translated to the clinic.
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Affiliation(s)
- Carol A Podlasek
- Departments of Urology, Physiology, Bioengineering, and Biochemistry, University of Illinois at Chicago, Chicago, IL 60612, United States
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Gao Q, Chen J, Zuo W, Wang B, Song T, Xu C, Yu W, Dai Y, Gao S, Zhu L, Yang J. ADSCs labeled with SPIONs tracked in corpus cavernosum of rat and miniature pig by MR imaging and histological examination. Sci Rep 2024; 14:1917. [PMID: 38253558 PMCID: PMC10803813 DOI: 10.1038/s41598-023-51076-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Adipose tissue-derived stem cells (ADSCs) have been shown to improve erectile function in animal models of erectile dysfunction. However, few studies have been carried out using a reliable in vivo imaging method to trace transplanted cells in real time, which is necessary for systematic investigation of cell therapy. The study aims to explore the feasibility of non-invasively monitoring intracavernous injection of ADSCs in rat and miniature pig corpus cavernosum using in vivo magnetic resonance (MR) imaging. Thirty-six male Sprague Dawley rats (10 weeks old) and six healthy, sexually mature male miniature pigs (20 kg weight) were obtained. ADSCs were isolated from paratesticular fat of donor rats and cultured. Then ADSCs were labeled with superparamagnetic iron oxide nanoparticles (SPIONs), a type of MR imaging contrast agent, before transplantation into rats and pigs. After intracavernous injection, all rats and pigs underwent and were analyzed by MR imaging at the day of ADSC transplantation and follow-up at 1, 2 and 4 weeks after transplantation. In addition, penile histological examination was performed on all rats and pigs before (n = 6) and at 1 day (n = 6), 1 week (n = 6), 2 weeks (n = 6) or 4 weeks (n = 12) after ADSC transplantation. SPION-labeled ADSCs demonstrated a strong decreased signal intensity compared with distilled water, unlabeled ADSCs or agarose gel. SPION-labeled ADSCs showed a hypointense signal at all concentrations, and the greatest hypointense signal was observed at the concentration of 1 × 106. MR images of the corpus cavernosum showed a hypointense signal located at the injection site. T2*-weighted signal intensity increased over the course of 1 week after ADSCs transplantation, and demonstrated a similar MR signal with that before ADSCs transplantation. After SPION-labeled ADSC injection, T2*-weighted MR imaging clearly demonstrated a marked hypointense signal in pig corpus cavernosum. The T2*-weighted signal faded over time, similar to the MR imaging results in rats. Obvious acute inflammatory exudation was induced by intracavernous injection, and the T2*-weighted signal intensity of these exudation was higher than that of the injection site. The presence of iron was detected by Prussian blue staining, which demonstrated ADSC retention in rat corpus cavernosum. Lack of cellular infiltrations were demonstrated by H&E staining before and 4 weeks after transplantation, which indicated no negative immune response by rats. Prussian blue staining was positive for iron oxide nanoparticles at 2 weeks after transplantation. SPION-labeled ADSCs showed a clear hypointense signal on T2-weight MRI in vitro and in vivo. The MR signal intensity in the corpus cavernosum of the rats and miniature pigs faded and disappeared over time after ADSC transplantation. These findings suggested that MR imaging could trace transplanted ADSCs in the short term in the corpus cavernosum of animals.
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Affiliation(s)
- Qingqiang Gao
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Jianhuai Chen
- Department of Andrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenren Zuo
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Bin Wang
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Tao Song
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chunlu Xu
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Wen Yu
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yutian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Songzhan Gao
- Department of Andrology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Leilei Zhu
- Department of Urology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, Jiangsu, China.
- Department of Surgery, Aheqi County People's Hospital, Xinjiang, China.
| | - Jie Yang
- Department of Urology, Jiangsu Provincial People's Hospital, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
- Department of Urology, People's Hospital of Xinjiang Kizilsu Kirgiz Autonomous Prefecture, Xinjiang, Uygur Autonomous Region, China.
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Moon HW, Kim IG, Kim MY, Jung AR, Park K, Lee JY. Erectile Dysfunction Treatment Using Stem Cell Delivery Patch in a Cavernous Nerve Injury Rat Model. Bioengineering (Basel) 2023; 10:635. [PMID: 37370566 DOI: 10.3390/bioengineering10060635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Erectile dysfunction (ED) is a common and feared complication of radical prostatectomy (RP) for prostate cancer. Recently, tissue engineering for post-prostatectomy ED has been attempted in which controlled interactions between cells, growth factors, and the extracellular matrix (ECM) are important for the structural integrity if nerve regeneration. In this study, we evaluated the effects of a biomechanical ECM patch on the morphology and behavior of human bone marrow-derived mesenchymal stem cells (hBMSCs) in a bilateral cavernous nerve injury (BCNI) rat model. The ECM patch, made of decellularized human fibroblast-derived ECM (hFDM) and a biocompatible polyvinyl alcohol (PVA) hydrogel, was tested with human bone marrow-derived mesenchymal stem cells (hBMSCs) on a bilateral cavernous nerve injury (BCNI) rat model. In vitro analysis showed that the hFDM/PVA + hBMSCs patches significantly increased neural development markers. In vivo experiments demonstrated that the rats treated with the hFDM/PVA patch had higher ICP/MAP ratios, higher ratios of smooth muscle to collagen, increased nNOS content, higher levels of eNOS protein expression, and higher cGMP levels compared to the BCNI group. These results indicate that the hFDM/PVA patch is effective in promoting angiogenesis, smooth muscle regeneration, and nitrergic nerve regeneration, which could contribute to improved erectile function in post-prostatectomy ED.
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Affiliation(s)
- Hyong Woo Moon
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - In Gul Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Mee Young Kim
- Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ae Ryang Jung
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Ji Youl Lee
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Bhattacharya S, Majumdar Nee Paul S. Application of conventional metallic nanoparticles on male reproductive system - challenges and countermeasures. Syst Biol Reprod Med 2023; 69:32-49. [PMID: 36427189 DOI: 10.1080/19396368.2022.2140087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The application of nanotechnology in the present era has substantial impact on different industrial and medical fields. However, the advancement in nanotechnology for potential therapeutic and consumer benefits has been an anxious cause regarding the probable hazardous consequences of these molecules in biological systems and the environment. The toxic effects can perturb the physiologic system broadly and reproductive function and fertility specifically. Despite engineered nanomaterials (ENMs) having a wide range of applications, toxicological investigations of the probable ramifications of ENMs on the reproductive systems of mammals and fertility remains in its nascence. Complication in the male reproductive system is quite a pertinent issue in today's world which comprises of benign prostatic enlargement, prostate cancer, and unhealthy sperm production. The therapeutic drugs should not only be active in minimum dose but also site-specific in action, criteria being met by nanomedicines. Nanomedicine therapy is promising but encompasses the chances of adverse effects of being cytotoxic and generating oxidative stress. These hurdles can be overcome by creating coated nanoparticles with organic substances, modification of shape and size, and synthesizing biocompatible green nanoparticles. This review attempts to look into the applications of most widely used metals like zinc, titanium, silver, and gold nanoparticles in the therapy of the male reproductive system, their prospective harmful effects, and the way out to create a safe therapeutic system by specific modifications of these metal and metal oxide nanoparticles.
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Affiliation(s)
- Sonali Bhattacharya
- Department of Zoology (Post Graduate Studies), Rishi Bankim Chandra College, West Bengal State University, Naihati, West Bengal, India
| | - Sudipta Majumdar Nee Paul
- Department of Zoology (Post Graduate Studies), Rishi Bankim Chandra College, West Bengal State University, Naihati, West Bengal, India
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Loloi J, Babar M, Davies KP, Suadicani SO. Nanotechnology as a tool to advance research and treatment of non-oncologic urogenital diseases. Ther Adv Urol 2022; 14:17562872221109023. [PMID: 35924206 PMCID: PMC9340423 DOI: 10.1177/17562872221109023] [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: 02/12/2022] [Accepted: 05/31/2022] [Indexed: 11/16/2022] Open
Abstract
Nanotechnology represents an expanding area of research and innovation in almost every field of science, including Medicine, where nanomaterial-based products have been developed for diagnostic and therapeutic applications. Because of their small, nanoscale size, these materials exhibit unique physical and chemical properties that differ from those of each component when considered in bulk. In Nanomedicine, there is an increasing interest in harnessing these unique properties to engineer nanocarriers for the delivery of therapeutic agents. Nano-based drug delivery platforms have many advantages over conventional drug administration routes as this technology allows for local and transdermal applications of therapeutics that can bypass the first-pass metabolism, improves drug efficacy through encapsulation of hydrophobic drugs, and allows for a sustained and controlled release of encapsulated agents. In Urology, nano-based drug delivery platforms have been extensively investigated and implemented for cancer treatment. However, there is also great potential for use of nanotechnology to treat non-oncologic urogenital diseases. We provide an update on research that is paving the way for clinical translation of nanotechnology in the areas of erectile dysfunction (ED), overactive bladder (OAB), interstitial cystitis/bladder pain syndrome (IC/BPS), and catheter-associated urinary tract infections (CAUTIs). Overall, preclinical and clinical studies have proven the utility of nanomaterials both as vehicles for transdermal and intravesical delivery of therapeutic agents and for urinary catheter formulation with antimicrobial agents to treat non-oncologic urogenital diseases. Although clinical translation will be dependent on overcoming regulatory challenges, it is inevitable before there is universal adoption of this technology to treat non-oncologic urogenital diseases.
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Cheng J, Zheng Z, Tang W, Shao J, Jiang H, Lin H. A new strategy for stem cells therapy for erectile dysfunction: Adipose-derived stem cells transfect Neuregulin-1 gene through superparamagnetic iron oxide nanoparticles. Investig Clin Urol 2022; 63:359-367. [PMID: 35534221 PMCID: PMC9091825 DOI: 10.4111/icu.20220016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/05/2022] [Accepted: 02/09/2022] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Our previous studies showed that nanotechnology improves derived adipose-derived stem cells (ADSCs) therapy for erectile dysfunction (ED). In this study, the Neuregulin-1(NRG1) gene was transfected into ADSCs with superparamagnetic iron oxide nanoparticles (SPION) further to improve the therapeutic effect of ADSCs on ED. MATERIALS AND METHODS ADSCs were isolated from epididymal adipose tissue of Sprague-Dawley rats. The optimal concentration of PEI-SPION (SPION modified with polyethyleneimine) was selected to construct the gene complex. After electrostatic binding of PEI-SPION and DNA, a PEI layer was wrapped to make the PEI-SPION-NRG1-PEI gene transfection complex. Different groups were set up for transfection tests. Lipo2000 transfection reagent was used as the control. PEI-SPION-NRG1-PEI in the experimental group was transfected under an external magnetic field. RESULTS When the concentration of PEI-SPION was 10 µg/mL, it had little cytotoxicity, and cell activity was not significantly affected. PEI-SPION-NRG1-PEI forms positively charged nanocomposites with a particle size of 72.6±14.9 nm when N/P ≥8. The PEI-SPION-NRG1-PEI gene complex can significantly improve the transfection efficiency of ADSCs, reaching 26.74%±4.62%, under the action of the external magnetic field. PCR and Western blot showed that the expression level of the NRG1 gene increased significantly, which proved that the transfection was effective. CONCLUSIONS PEI-SPION can be used as a vector for NRG1 gene transfection into ADSCs. PEI-SPION-NRG1-PEI packaging has the highest transfection efficiency under the external magnetic field than the other groups. These findings may provide a new strategy for ADSCs therapy for ED.
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Affiliation(s)
- Jianxing Cheng
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
- Reproductive Medicine Center, Peking University Third Hospital, Peking University, Beijing, China
- Department of Andrology, Peking University Third Hospital, Peking University, Beijing, China
| | - Zhongjie Zheng
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
- Reproductive Medicine Center, Peking University Third Hospital, Peking University, Beijing, China
- Department of Andrology, Peking University Third Hospital, Peking University, Beijing, China
| | - Wenhao Tang
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
- Reproductive Medicine Center, Peking University Third Hospital, Peking University, Beijing, China
- Department of Andrology, Peking University Third Hospital, Peking University, Beijing, China
| | - Jichun Shao
- Department of Urology, Second Affiliated Hospital of Chengdu Medical College (China National Nuclear Corporation 416 Hospital), Chengdu, Sichuan, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
- Reproductive Medicine Center, Peking University Third Hospital, Peking University, Beijing, China
- Department of Andrology, Peking University Third Hospital, Peking University, Beijing, China
- Department of Human Sperm Bank, Peking University Third Hospital, Peking University, Beijing, China.
| | - Haocheng Lin
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
- Reproductive Medicine Center, Peking University Third Hospital, Peking University, Beijing, China
- Department of Andrology, Peking University Third Hospital, Peking University, Beijing, China.
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Rodboon T, Yodmuang S, Chaisuparat R, Ferreira JN. Development of high-throughput lacrimal gland organoid platforms for drug discovery in dry eye disease. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2022; 27:151-158. [PMID: 35058190 DOI: 10.1016/j.slasd.2021.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Dysfunction and damage of the lacrimal gland (LG) results in ocular discomfort and dry eye disease (DED). Current therapies for DED do not fully replenish the necessary lubrication to rescue optimal vision. New drug discovery for DED has been limited perhaps because in vitro models cannot mimic the biology of the native LG. The existing platforms for LG organoid culture are scarce and still not ready for consistency and scale up production towards drug screening. The magnetic three-dimensional (3D) bioprinting (M3DB) is a novel system for 3D in vitro biofabrication of cellularized tissues using magnetic nanoparticles to bring cells together. M3DB provides a scalable platform for consistent handling of spheroid-like cell cultures facilitating consistent biofabrication of organoids. Previously, we successfully generated innervated secretory epithelial organoids from human dental pulp stem cells with M3DB and found that this platform is feasible for epithelial organoid bioprinting. Research targeting LG organogenesis, drug discovery for DED has extensively used mouse models. However, certain inter-species differences between mouse and human must be considered. Porcine LG appear to have more similarities to human LG than the mouse counterparts. We have conducted preliminary studies with the M3DB for fabricating LG organoids from primary cells isolated from murine and porcine LG, and found that this platform provides robust LG organoids for future potential high-throughput analysis and drug discovery. The LG organoid holds promise to be a functional model of tearing, a platform for drug screening, and may offer clinical applications for DED.
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Affiliation(s)
- Teerapat Rodboon
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Supansa Yodmuang
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand; Department of Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Risa Chaisuparat
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand; Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Joao N Ferreira
- Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand; Faculty of Dentistry, National University of Singapore, Singapore.
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Zaghary WA, Elansary MM, Shouman DN, Abdelrahim AA, Abu-Zied KM, Sakr TM. Can nanotechnology overcome challenges facing stem cell therapy? A review. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Chung E. A review of regenerative therapies as penile rehabilitation in men following primary prostate cancer treatment: Evidence for erectile restoration and cavernous nerve regeneration. Asian J Urol 2021; 9:287-293. [PMID: 36035357 PMCID: PMC9399549 DOI: 10.1016/j.ajur.2021.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/23/2021] [Accepted: 09/30/2021] [Indexed: 11/18/2022] Open
Abstract
Objective Methods Results Conclusion
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Affiliation(s)
- Eric Chung
- AndroUrology Centre, Brisbane, QLD, Australia
- University of Queensland, Princess Alexandra Hospital, Brisbane, QLD, Australia
- Macquarie University Hospital, Sydney, NSW, Australia
- AndroUrology Centre, Brisbane, QLD, Australia.
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Chung E. Regenerative technology to restore and preserve erectile function in men following prostate cancer treatment: evidence for penile rehabilitation in the context of prostate cancer survivorship. Ther Adv Urol 2021; 13:17562872211026421. [PMID: 34434257 PMCID: PMC8381411 DOI: 10.1177/17562872211026421] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 06/01/2021] [Indexed: 01/17/2023] Open
Abstract
Introduction Erectile dysfunction (ED) following prostate cancer treatment is not uncommon and penile rehabilitation is considered the standard of care in prostate cancer survivorship (PCS), where both patient and his partner desire to maintain and/or recover pre-treatment erectile function (EF). There is a clinical interest in the role of regenerative therapy to restore EF, since existing ED treatments do not always achieve adequate results. Aim To review regenerative therapies for the treatment of ED in the context of PCS. Materials and Methods A review of the existing PubMed literature on low-intensity extracorporeal shockwave therapy (LIESWT), stem cell therapy (SCT), platelet-rich plasma (PRP), gene therapy, and nerve graft/neurorrhaphy in the treatment of ED and penile rehabilitation, was undertaken. Results IESWT promotes neovascularization and neuroprotection in men with ED. While several systematic reviews and meta-analyses showed positive benefits, there is limited published clinical data in men following radical prostatectomy. Cellular-based technology such as SCT and PRP promotes cellular proliferation and the secretion of various growth factors to repair damaged tissues, especially in preclinical studies. However, longer-term clinical outcomes and concerns regarding bioethical and regulatory frameworks need to be addressed. Data on gene therapy in post-prostatectomy ED men are lacking; further clinical studies are required to investigate the optimal use of growth factors and the safest vector delivery system. Conceptually interpositional cavernous nerve grafting and penile re-innervation technique using a somatic-to-autonomic neurorrhaphy are attractive, but issues relating to surgical technique and potential for neural 'regeneration' are questionable. Conclusion In contrast to the existing treatment regime, regenerative ED technology aspires to promote endothelial revascularization and neuro-regeneration. Nevertheless, there remain considerable issues related to these regenerative technologies and techniques, with limited data on longer-term efficacy and safety records. Further research is necessary to define the role of these alternative therapies in the treatment of ED in the context of penile rehabilitation and PCS.
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Affiliation(s)
- Eric Chung
- AndroUrology Centre, Suite 3, 530 Boundary St., Brisbane, QLD 4000, Australia
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15
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Masuku NP, Unuofin JO, Lebelo SL. Advances in Nanoparticle Delivery System for Erectile Dysfunction: An Updated Review. Sex Med 2021; 9:100420. [PMID: 34388420 PMCID: PMC8498961 DOI: 10.1016/j.esxm.2021.100420] [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: 04/22/2021] [Revised: 07/05/2021] [Accepted: 07/13/2021] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION The use of current available treatment for male erectile dysfunction (ED) has some limitations that are related to efficacy and adverse effects. Nanotechnology has been used as a new tool in medicine to improve these limitations and new medications potentially to alleviate and cure ED. AIM To review the currently literature on new nano medications for ED based on scientific and clinical studies, efficacy, safety, mechanisms of action, and to identify gaps for future research. METHODS A comprehensive literature review was conducted via Google Scholar, Science Direct, and PubMed on English publications using different keywords such as "erectile dysfunction", "emerging treatments", "nanotechnology", and "herbal medicine". The retrieved papers were organized into groups according to the sections covered in this review paper. MAIN OUTCOMES MEASURES We reviewed novel ED treatments such as nanotechnological phosphodiesterase inhibitors, papaverine hydrochloride, sialorphin, adipose tissue-derived stem cells, sonic hedgehog, and herbal medicine. RESULTS Numerous preclinical studies have addressed novel phosphodiesterase 5 inhibitors nanoparticle, and their recent delivery systems. Nitric oxide, sialorphin, sonic hedgehog, and herbal medicine loaded nanoparticles and nano adipose tissue-derived stem cells as a potential new treatment for ED. In addition, papaverine-containing nanoparticles have been reported. A limited number of randomized clinical studies have determined the mechanism of these treatments. CONCLUSION A literature review on the application of nanotechnology in ED therapy was successfully conducted. New nano medications are promising to treat ED. However, further studies are warranted to further assess their efficacy and safety. Masuku NP, Unuofin JO, Lebelo SL. Advances in Nanoparticle Delivery System for Erectile Dysfunction: An Updated Review. Sex Med 2021;XX:XXXXXX.
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Affiliation(s)
| | | | - Sogolo Lucky Lebelo
- Department of Life and Consumer Sciences, University of South Africa, South Africa
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Shende P, Sharma P. Current Status and Emerging Trend of Nanoshuttle in Biological Applications. Curr Pharm Des 2021; 27:105-114. [PMID: 32660398 DOI: 10.2174/1381612826666200713170356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/12/2020] [Indexed: 11/22/2022]
Abstract
Nanoshuttles are unique structures that resemble double-headed arrows or a nanorod with sharp tips for better penetration into the tumor cells, reduction of toxicity and minimization of off-targeting effect. These biologically- inspired multimetallic or bimetallic nano swimmers are capable of transporting cargoes from one end to another via self-propulsion in an efficient manner. Encapsulation with pH- and heat-sensitive polymers allows nanoshuttles to release cargos at the targeted site in a controlled fashion. This review article focuses on the methods of preparation and characterization of nanoshuttles with applications in the field of antineoplastic, antibacterial, erectile dysfunction, electrochemical biosensing, anticounterfeiting, on-demand and targeted delivery system for imaging as well as cell ablation therapy. Magnetic nanoshuttles exhibit modified optical properties for utilization in diagnostic imaging for sensitive and early diagnosis of diseases. Smart drug delivery is achieved when nanoshuttles are combined with nanomotors to exhibit distinctive, rapid and unidirectional movement in the bloodstream. Cost-effective synthesis of nanoshuttles will extend their applications in the commercial sectors by overcoming the limitations like scale-up and regulatory approval. In the near future, nanoshuttles will diversify in the fields of energy conversion, energy storage, 3D printing, stem cell fabrication and theranostics.
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Affiliation(s)
- Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, India
| | - Pragya Sharma
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, India
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Chansaenroj A, Yodmuang S, Ferreira JN. Trends in Salivary Gland Tissue Engineering: From Stem Cells to Secretome and Organoid Bioprinting. TISSUE ENGINEERING PART B-REVIEWS 2021; 27:155-165. [DOI: 10.1089/ten.teb.2020.0149] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ajjima Chansaenroj
- Exocrine Gland Biology and Regeneration Research Group, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Supansa Yodmuang
- Exocrine Gland Biology and Regeneration Research Group, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - João N. Ferreira
- Exocrine Gland Biology and Regeneration Research Group, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
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18
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Shandilya R, Pathak N, Lohiya NK, Sharma RS, Mishra PK. Nanotechnology in reproductive medicine: Opportunities for clinical translation. Clin Exp Reprod Med 2020; 47:245-262. [PMID: 33227186 PMCID: PMC7711096 DOI: 10.5653/cerm.2020.03650] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/19/2020] [Indexed: 12/13/2022] Open
Abstract
In recent years, nanotechnology has revolutionized global healthcare and has been predicted to exert a remarkable effect on clinical medicine. In this context, the clinical use of nanomaterials for cancer diagnosis, fertility preservation, and the management of infertility and other pathologies linked to pubertal development, menopause, sexually transmitted infections, and HIV (human immunodeficiency virus) has substantial promise to fill the existing lacunae in reproductive healthcare. Of late, a number of clinical trials involving the use of nanoparticles for the early detection of reproductive tract infections and cancers, targeted drug delivery, and cellular therapeutics have been conducted. However, most of these trials of nanoengineering are still at a nascent stage, and better synergy between pharmaceutics, chemistry, and cutting-edge molecular sciences is needed for effective translation of these interventions from bench to bedside. To bridge the gap between translational outcome and product development, strategic partnerships with the insight and ability to anticipate challenges, as well as an in-depth understanding of the molecular pathways involved, are highly essential. Such amalgamations would overcome the regulatory gauntlet and technical hurdles, thereby facilitating the effective clinical translation of these nano-based tools and technologies. The present review comprehensively focuses on emerging applications of nanotechnology, which holds enormous promise for improved therapeutics and early diagnosis of various human reproductive tract diseases and conditions.
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Affiliation(s)
- Ruchita Shandilya
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Neelam Pathak
- School of Life Sciences, University of Rajasthan, Jaipur, India
| | | | - Radhey Shyam Sharma
- Division of Reproductive Biology, Maternal and Child Health, Indian Council of Medical Research, New Delhi, India
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
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Liu MC, Chang ML, Wang YC, Chen WH, Wu CC, Yeh SD. Revisiting the Regenerative Therapeutic Advances Towards Erectile Dysfunction. Cells 2020; 9:E1250. [PMID: 32438565 PMCID: PMC7290763 DOI: 10.3390/cells9051250] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Erectile dysfunction (ED) is an inability to attain or maintain adequate penile erection for successful vaginal intercourse, leading to sexual and relationship dissatisfaction. To combat ED, various surgical and non-surgical approaches have been developed in the past to restore erectile functions. These therapeutic interventions exhibit significant impact in providing relief to patients; however, due to their associated adverse effects and lack of long-term efficacy, newer modalities such as regenerative therapeutics have gained attention due to their safe and prolonged efficacy. Stem cells and platelet-derived biomaterials contained in platelet-rich plasma (PRP) are thriving as some of the major therapeutic regenerative agents. In recent years, various preclinical and clinical studies have evaluated the individual, as well as combined of stem cells and PRP to restore erectile function. Being rich in growth factors, chemokines, and angiogenic factors, both stem cells and PRP play a crucial role in regenerating nerve cells, myelination of axons, homing and migration of progenitor cells, and anti-fibrosis and anti-apoptosis of damaged cavernous nerve in corporal tissues. Further, platelet-derived biomaterials have been proven to be a biological supplement for enhancing the proliferative and differentiation potential of stem cells towards neurogenic fate. Therefore, this article comprehensively analyzes the progresses of these regenerative therapies for ED.
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Affiliation(s)
- Ming-Che Liu
- Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan; (M.-C.L.); (C.-C.W.)
- Clinical Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Graduate Institute of Clinical Medicine, school of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Meng-Lin Chang
- Department of Urology, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City 242, Taiwan;
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Ya-Chun Wang
- TCM Biotech International Corp., New Taipei City 22175, Taiwan; (Y.-C.W.); (W.-H.C.)
| | - Wei-Hung Chen
- TCM Biotech International Corp., New Taipei City 22175, Taiwan; (Y.-C.W.); (W.-H.C.)
| | - Chien-Chih Wu
- Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan; (M.-C.L.); (C.-C.W.)
- Department of Education and Humanities in Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Shauh-Der Yeh
- Department of Urology and Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
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Liu SZ, Feng DC, Liu ZH, Liang JY, Ren ZJ, Zhou C, Wu K, Zhang FX, Zhang F, Lu YP, Wang XD. Development of nanotechnology in andrology. Transl Androl Urol 2020; 9:702-708. [PMID: 32420177 PMCID: PMC7214986 DOI: 10.21037/tau.2020.01.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Since first introduced in 1980s, nanotechnology has always been the eye-catching point as its providing us with new approaches to explore the microscopic world. Many nanotechnology-associated novel technologies have been brought into clinical use in the past decades and uncountable patients benefited from them, which convinces us of a bright prospect of nanotechnology in the field of medicine. In this review, literatures concerning nanotechnology applications in andrology were retrieved and we made a comprehensive discussion on drug delivery, gene therapy and stem cell therapy use in andrology, which calls for the engagement of nanotechnology.
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Affiliation(s)
- Sheng-Zhuo Liu
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - De-Chao Feng
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhi-Hong Liu
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jia-Yu Liang
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zheng-Ju Ren
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chuan Zhou
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kan Wu
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fu-Xun Zhang
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fan Zhang
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yi-Ping Lu
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xian-Ding Wang
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
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21
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Icariside II facilitates the differentiation of ADSCs to schwann cells and restores erectile dysfunction through regulation of miR-33/GDNF axis. Biomed Pharmacother 2020; 125:109888. [PMID: 32066039 DOI: 10.1016/j.biopha.2020.109888] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/11/2020] [Accepted: 01/14/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Adipose derived stem cells (ADSCs) have the property to differentiate into neuron-like cells, which may provide a novel insight for the restoration of erectile dysfunction (ED) mainly induced by cavernous nerve injury. Icariside II (ICA II) has been reported to play a key role in the regulation of erectile function via stimulating the differentiation of ADSCs to Schwann Cells (SCs). However, the function and molecular mechanisms of ICA II in ED remains to be further clarified. METHODS The expression of S100, P75, GDNF and miR-33 was detected by qRT-PCR. And the relative proteins expression was determined by western blot. Cell viability was measured by Cell Counting Kit-8 (CCK-8) assay. Bioinformatics, luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to verify the interaction between miR-33 and GDNF. Intracavernosal pressure (ICP), the ratio of ICP and mean arterial pressure (MAP), as well as nNOS expression were examined to evaluate the erectile function of SD rats with bilateral cavernous nerve injury (BCNI). RESULTS ICA II and miR-33 respectively promoted and inhibited the differentiation of ADSCs to SCs. MiR-33 could negatively regulate P75 and GDNF expression. ICA II exerted promotion effects on differentiation of ADSCs to SCs via regulating miR-33. GDNF was identified to be a target of miR-33. MiR-33 overexpression abrogated the stimulatory effect of ICA II on ADSCs' differentiation, which was blocked by GDNF overexpression. treated with ICA II recovered the erectile function of BCNI model rats through regulation of miR-33. CONCLUSION ICA II contributed to the differentiation of ADSCs to SCs viamiR-33/GDNF axis, contributing to the recovery of erectile function in BCNI rats.
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Intracavernous injection of size-specific stem cell spheroids for neurogenic erectile dysfunction: Efficacy and risk versus single cells. EBioMedicine 2020; 52:102656. [PMID: 32062355 PMCID: PMC7016386 DOI: 10.1016/j.ebiom.2020.102656] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Intracavernous injection (ICI) of adipose-derived stem cells (ADSCs) has been demonstrated promising for neurogenic erectile dysfunction (ED). However, due to the sponge-like structure of corpus cavernosum (CC) with abundant vessels, ICI was indeed like intravenous injection. Thus, the cell escaping may be a concern of safety and limited therapy, but the issue has not been clearly demonstrated yet. METHODS Suspensions of free ADSCs (FAs) and ADSCs-based spheroids (ASs) with suitable size were intracavernously injected at doses of 0.5, 1, 2, or 4 million cells. The cell loss and safety after ICI, erectile function and histopathologic change, etc. were analyzed with multimodality of methods. FINDINGS Most FAs escaped from sponge-like CC after ICI due to their small size, weakening stem-cell therapeutic efficacy. Worse still, the escaped cells were shown to cause widespread pulmonary embolism (PE), and even death in some animals. Further, it was founded that the therapeutic effect of FAs may be ascribed to the larger cell clusters which spontaneously aggregated before ICI and were trapped within CC after ICI. In comparison, cell loss and PE were significantly avoided by transplanting ASs. Importantly, better therapeutic outcomes were detected after ICI of ASs when compared to FAs with the same cell number. INTERPRETATION Transplantation of size-specific ASs instead of single-cell suspension of FAs for neurogenic ED may be a wiser choice to achieve steady therapeutic outcome and to reduce risks for the future clinical application. FUND: This work was supported by the National Natural Science Foundation of China (81701432) (to Y. Xu). Youth Training Project for Medical science (16QNP129) and Beijing Nova Program of science and technology (Z171100001117115) (to Z. Liu).
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Yang M, Sun JY, Ying CC, Wang Y, Guo YL. Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury. Neural Regen Res 2020; 15:120-127. [PMID: 31535660 PMCID: PMC6862402 DOI: 10.4103/1673-5374.264464] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Cavernous nerve injury is the main cause of erectile dysfunction following radical prostatectomy. The recovery of erectile function following radical prostatectomy remains challenging. Our previous studies found that injecting adipose-derived stem cells (ADSCs) into the cavernosa could repair the damaged cavernous nerves, but the erectile function of the treated rats could not be restored to a normal level. We evaluated the efficacy of ADSCs infected with a lentiviral vector encoding rat brain-derived neurotrophic factor (lenti-rBDNF) in a rat model of cavernous nerve injury. The rats were equally and randomly divided into four groups. In the control group, bilateral cavernous nerves were isolated but not injured. In the bilateral cavernous nerve injury group, bilateral cavernous nerves were isolated and injured with a hemostat clamp for 2 minutes. In the ADSCGFP and ADSCrBDNF groups, after injury with a hemostat clamp for 2 minutes, rats were injected with ADSCs infected with lenti-GFP (1 × 106 in 20 μL) and lenti-rBDNF (1 × 106 in 20 μL), respectively. Erectile function was assessed 4 weeks after injury by measuring intracavernosal pressures. Then, penile tissues were collected for histological detection and western blot assay. Results demonstrated that compared with the bilateral cavernous nerve injury group, erectile function was significantly recovered in the ADSCGFP and ADSCrBDNF groups, and to a greater degree in the ADSCrBDNF group. Neuronal nitric oxide synthase content in the dorsal nerves and the ratio of smooth muscle/collagen were significantly higher in the ADSCrBDNF and ADSCGFP groups than in the bilateral cavernous nerve injury group. Neuronal nitric oxide synthase expression was obviously higher in the ADSCrBDNF group than in the ADSCGFP group. These findings confirm that intracavernous injection with ADSCs infected with lenti-rBDNF can effectively improve erectile dysfunction caused by cavernous nerve injury. This study was approved by the Medical Animal Care and Welfare Committee of Wuhan University, China (approval No. 2017-1638) on June 20, 2017.
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Affiliation(s)
- Mei Yang
- Department of Endocrinology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, Hubei Province, China
| | - Jiang-Yang Sun
- Department of Hepatobiliary Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Cheng-Cheng Ying
- Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yong Wang
- Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yong-Lian Guo
- Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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Urkasemsin G, Rungarunlert S, Ferreira JN. Bioprinting Strategies for Secretory Epithelial Organoids. Methods Mol Biol 2020; 2140:243-249. [PMID: 32207117 DOI: 10.1007/978-1-0716-0520-2_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Novel three-dimensional (3D) biofabrication platforms can allow magnetic 3D bioprinting (M3DB) by using magnetic nanoparticles to tag cells and then spatially arrange them in 3D around magnet dots. Here, we report an M3DB methodology to generate salivary gland-like epithelial organoids from stem cells. These organoids possess a neuronal network that responds to saliva neurostimulants.
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Affiliation(s)
- Ganokon Urkasemsin
- Department of Preclinical and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - Sasitorn Rungarunlert
- Department of Preclinical and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - João N Ferreira
- Exocrine Gland Biology and Regeneration Research Group, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand. .,Faculty of Dentistry, National University of Singapore, Singapore, Singapore.
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Ammar HO, Tadros MI, Salama NM, Ghoneim AM. Therapeutic Strategies for Erectile Dysfunction With Emphasis on Recent Approaches in Nanomedicine. IEEE Trans Nanobioscience 2019; 19:11-24. [PMID: 31567099 DOI: 10.1109/tnb.2019.2941550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This review addressed erectile dysfunction, regarding pathophysiology and therapeutic strategies. The line of treatment includes phosphodiesterase type-5 inhibitors and other types of therapy like topical and stem-cell transplant. Scientific literature was assessed to investigate the impact of nanotechnology on erectile dysfunction therapy. Various nanotechnology approaches were applied, like vesicular systems, lipid-based carriers, nanocrystals, dendrimers, liquid crystalline systems and nanoemulsions. Smart nano-systems can alter the landscape of the modern pharmaceutical industry by re- investigation of pharmaceutically suboptimal but biologically active entities for treatment of erectile dysfunction which were previously considered undeveloped.
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Wu H, Tang WH, Zhao LM, Liu DF, Yang YZ, Zhang HT, Zhang Z, Hong K, Lin HC, Jiang H. Nanotechnology-assisted adipose-derived stem cell (ADSC) therapy for erectile dysfunction of cavernous nerve injury: In vivo cell tracking, optimized injection dosage, and functional evaluation. Asian J Androl 2019; 20:442-447. [PMID: 30004040 PMCID: PMC6116694 DOI: 10.4103/aja.aja_48_18] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Stem cell therapy is a potentially promising option for erectile dysfunction; however, its risk of tumorigenicity is a clinical hurdle and the risk is positively related to the number of injected cells. Our previous study showed that nanotechnology improved adipose-derived stem cell (ADSC) therapy for erectile dysfunction of cavernous nerve injury (CNI) by attracting cells in the corpus cavernosum. These results indicated the possibility of using a reduced dosage of ADSCs for intracavernous injection. In this exploratory study, we used lower dosage (2 × 105 cells) of ADSCs for intracavernous injection (ICI) and the nanotechnology approach. Intracavernous pressure and mean arterial pressure were measured at day 28 to assess erectile function. The low-dose ADSC therapy group showed favorable treatment effects, and nanotechnology further improved these effects. In vivo imaging of ICI cells revealed that the fluorescein signals of NanoShuttle-bound ADSCs (NanoADSCs) were much stronger than those of ADSCs at days 0, 1, and 3. Both immunofluorescence and Western blot analysis showed a significant increase in smooth muscle, endothelium, and nerve tissue in the ADSC group compared to that in the CNI group; further improvement was achieved with assisted nanotechnology. These findings demonstrate that nanotechnology can be used to further improve the effect of small dosage of ADSCs to improve erectile function. Abundant NanoADSCs remain in the corpus cavernosum in vivo for at least 3 days. The mechanism of erectile function improvement may be related to the regeneration of the smooth muscle, endothelium, and nerve tissues.
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Affiliation(s)
- Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
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Park HJ, Jeong H, Park YH, Yim HW, Ha US, Hong SH, Kim SW, Kim NJ, Lee JY. Adipose Tissue-Derived Stem Cell Therapy for Cavernous Nerve Injury-Induced Erectile Dysfunction in the Rat Model: A Systematic Review and Meta-Analysis Using Methodological Quality Assessment. Int J Stem Cells 2019; 12:206-217. [PMID: 31022999 PMCID: PMC6657942 DOI: 10.15283/ijsc18122] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 12/24/2022] Open
Abstract
Background and Objectives Few studies were evaluated the effect of blindness on outcome in animal models, though a potential effect of blinding has been reported in clinical trials. We evaluated the effects of adipose tissue-derived stem cells (ADSCs) on cavernous nerve injury (CNI)-induced erectile dysfunction (ED) in the rat and examined how proper blinding of the outcome assessor affected treatment effect. Methods and Results We searched in Pubmed, EMBASE, Cochrane and Web of Science databases from inception to January 2019. We included CNI animal model, randomized controlled experiments, and ADSC intervention. Erectile function and structural changes were assessed by intracavernous pressure and mean arterial pressure (ICP/MAP) ratios, neuronal nitric oxide synthase (nNOS) levels, cavernous smooth muscle and collagen (CSM/collagen) ratios, and cyclic guanosine monophosphate (cGMP). Results Nineteen studies were included in the final meta-analysis. The ICP/MAP ratio of the ADSC treatment group increased compared to the control group (SMD=1.33, 95%CI: 1.11~1.56, I2=72%). The nNOS level (SMD=2.29, 95%CI: 1.74~2.84, I2=75%), CSM/collagen (SMD=2.57, 95%CI: 1.62~3.52; I2=85%), and cGMP (SMD=2.96, 95%CI: 1.82~4.10, I2=62%) were also increased in the ADSC treatment group. Preplanned subgroup analysis was conducted to explore the source of heterogeneity. Five studies with blinded outcome assessment were significantly less effective than the unblinded studies (SMD=1.33, 95%CI: 0.86~1.80; SMD=1.81, 95%CI: 1.17~2.46, respectively). Conclusions ADSCs might be effective in improving erectile function and structural change in CNI-induced ED. However, non-blinded outcome assessors might cause detection bias and overestimate treatment efficacy. Therefore, the ADSC efficacy must be further evaluated with a rigorous study design to avoid bias.
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Affiliation(s)
- Hyo Jung Park
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Korea
| | - Hyunsuk Jeong
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong Hyun Park
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon Woo Yim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - U-Syn Ha
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung-Hoo Hong
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sae Woong Kim
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Na Jin Kim
- Medical Library, The Catholic University of Korea, Seoul, Korea
| | - Ji Youl Lee
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Korea
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In vivo tracking on longer retention of transplanted myocardin gene-modified adipose-derived stem cells to improve erectile dysfunction in diabetic rats. Stem Cell Res Ther 2019; 10:208. [PMID: 31311594 PMCID: PMC6636019 DOI: 10.1186/s13287-019-1325-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/11/2019] [Accepted: 07/03/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Stem cell therapy has revealed a promising future for treating erectile dysfunction (ED), but the fate and curative mechanism of intracavernosal transplanted stem cells are under further exploration. This study aimed to demonstrate the effects of myocardin gene modification on improving erectile function and prolonging the retention of implanted adipose-derived stem cells (ASCs) using in vivo small animal imaging. METHODS ASCs were isolated, cultured, and identified by flow cytometry and osteogenic and adipogenic induction. The effects of gene modification on cell proliferation, apoptosis, and contraction were determined by CCK-8, EdU, flow cytometry, and collagen gel lattice contraction assays as well as confocal microscopy. A total of 20 normal and 60 diabetes mellitus ED to (DMED) Sprague-Dawley rats were recruited to the 7 day and 21 day groups. Each group contained subgroups of 10 rats each: the negative control (NC), DMED + ASCs plus Ad-Luc-Myocardin, DMED + ASCs plus Ad-Luc, and DMED + phosphate buffer solution (PBS) groups. Erectile function was evaluated with the intracavernosal pressure/mean arterial pressure (△ICP/MAP) ratio. In vivo small animal imaging and an EdU cell tracking strategy were introduced to detect the transplanted ASCs, and IHC and WB were performed to assess smooth muscle cell protein levels. RESULTS The ASCs expressed high CD29 and CD90 and scant CD45, while the multi-induction potential was verified by oil red O and alizarin red staining. Gene transfection of myocardin had no significant influence on ASC apoptosis but inhibited cell proliferation and promoted cell contraction. Myocardin combined with ASCs enhanced the therapeutic potential of ASCs for improving the △ICP/MAP ratio as well as α-SMA and calponin expression. In vivo imaging confirmed that ASCs resided within the cavernous body in 21 days, while only a few red EdU dots were detected. CONCLUSIONS Myocardin induced ASC differentiation towards smooth muscle-like cells and enhanced the therapeutic potential of ASCs for ameliorating ED in STZ-induced diabetic rats. Notably, in vivo small animal tracking was an effective strategy for monitoring the implanted stem cells, and this strategy might have advantages over traditional EdU assays.
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Ferreira JN, Hasan R, Urkasemsin G, Ng KK, Adine C, Muthumariappan S, Souza GR. A magnetic three-dimensional levitated primary cell culture system for the development of secretory salivary gland-like organoids. J Tissue Eng Regen Med 2019; 13:495-508. [PMID: 30666813 DOI: 10.1002/term.2809] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/08/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
Abstract
Salivary gland (SG) hypofunction and oral dryness can be induced by radiotherapy for head and neck cancers or autoimmune disorders. These are common clinical conditions that involve loss of saliva-secreting epithelial cells. Several oral complications arise with SG hypofunction that interfere with routine daily activities such as chewing, swallowing, and speaking. Hence, there is a need for replacing these saliva-secreting cells. Recently, researchers have proposed to repair SG hypofunction via various cell-based approaches in three-dimensional (3D) scaffold-based systems. However, majority of the scaffolds used cannot be translated clinically due to the presence of non-human-based substrates. Herein, saliva-secreting organoids/mini-glands were developed using a new scaffold/substrate-free culture system named magnetic 3D levitation (M3DL), which assembles and levitates magnetized primary SG-derived cells (SGDCs), allowing them to produce their own extracellular matrices. Primary SGDCs were assembled in M3DL to generate SG-like organoids in well-established SG epithelial differentiation conditions for 7 days. After such culture time, these organoids consistently presented uniform spheres with greater cell viability and pro-mitotic cells, when compared with conventional salisphere cultures. Additionally, organoids formed by M3DL expressed SG-specific markers from different cellular compartments: acinar epithelial including adherens junctions (NKCC1, cholinergic muscarinic receptor type 3, E-cadherin, and EpCAM); ductal epithelial and myoepithelial (cytokeratin 14 and α-smooth muscle actin); and neuronal (β3-tubulin and vesicular acetylcholine transferase). Lastly, intracellular calcium and α-amylase activity assays showed functional organoids with SG-specific secretory activity upon cholinergic stimulation. Thus, the functional organoid produced herein indicate that this M3DL system can be a promising tool to generate SG-like mini-glands for SG secretory repair.
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Affiliation(s)
- Joao N Ferreira
- Faculty of Dentistry, Excellence Centre in Regenerative Dentistry, Chulalongkorn University, Bangkok, Thailand.,Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Riasat Hasan
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Ganokon Urkasemsin
- Faculty of Veterinary Science, Department of Preclinical and Applied Animal Science, Mahidol University, Nakhon Pathom, Thailand
| | - Kiaw K Ng
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Christabella Adine
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Sujatha Muthumariappan
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Glauco R Souza
- University of Texas Health Sciences Center at Houston, Houston, TX, USA.,Nano3D Biosciences Inc., Houston, TX, USA
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Antonino DDC, Soares MM, Júnior JDM, de Alvarenga PB, Mohallem RDFF, Rocha CD, Vieira LA, de Souza AG, Beletti ME, Alves BG, Jacomini JO, Goulart LR, Alves KA. Three-dimensional levitation culture improves in-vitro growth of secondary follicles in bovine model. Reprod Biomed Online 2018; 38:300-311. [PMID: 30639159 DOI: 10.1016/j.rbmo.2018.11.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/10/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
Abstract
RESEARCH QUESTION Does a three-dimensional culture system based on magnetic levitation with nanoparticles assembly maintain the follicular structure and viability with adequate growth rates leading to oocyte maturation after long-term culture? DESIGN Randomized-controlled trial of treatments in a bovine model. Secondary follicles (n = 213) isolated from bovine ovaries were cultured in a two-dimensional system (two-dimensional control) or three-dimensional levitation system with different concentrations (three-dimensional 50 µl/ml, 100 µl/ml and 200 µl/ml) of magnetic nanoparticles. Follicular growth (diameter, daily growth and growth patterns), morphology (normal, degenerated and extruded follicles), antrum formation, oocyte viability and chromatin configuration were assessed. RESULTS Secondary follicles of three-dimensional 200-µl/ml treatment showed higher viability, antrum formation and lower degeneration rates than two-dimensional control. Also, follicles cultured in the three-dimensional 200-µl/ml treatment presented a most homogenous daily growth rate as shown by the lowest variance and standard deviation. Compared with the two-dimensional control, the proportion of non-growing and slow-growing follicles were 3.8-fold lower and 1.6-fold higher, respectively, in the three-dimensional 200-µl/ml treatment. After in-vitro maturation, the three-dimensional 200-µl/ml had a greater proportion of viable oocytes (1.7-fold) and meiotic resumption rates (2.4-fold) than the two-dimensional control treatment. CONCLUSION The three-dimensional levitation culture system improves the viability of in-vitro development of bovine secondary follicles, antrum formation and lower extrusion and degeneration rates and adequate growth rate leading to relevant oocyte viability and meiotic resumption after in-vitro maturation. This approach does not require a specific medium, and has the potential as an alternative method to in-vitro follicle culture in several species, including humans.
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Affiliation(s)
- Deize de Cássia Antonino
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Mayara Mafra Soares
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Jairo de Melo Júnior
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Paula Batista de Alvarenga
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Renata de Freitas Ferreira Mohallem
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Carina Diniz Rocha
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | | | - Aline Gomes de Souza
- Nanobiotechnology Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia Minas Gerais, Brazil
| | - Marcelo Emílio Beletti
- Laboratory of Biology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia Minas Gerais, Brazil
| | - Benner Geraldo Alves
- Laboratory of Biology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia Minas Gerais, Brazil
| | - José Octavio Jacomini
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Luiz Ricardo Goulart
- Nanobiotechnology Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia Minas Gerais, Brazil; Department of Medical Microbiology and Immunology, University of California Davis, Davis CA, USA
| | - Kele Amaral Alves
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil.
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Gur S, Abdel-Mageed AB, Sikka SC, Hellstrom WJG. Advances in stem cell therapy for erectile dysfunction. Expert Opin Biol Ther 2018; 18:1137-1150. [PMID: 30301368 DOI: 10.1080/14712598.2018.1534955] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Stem cell (SC) application is a promising area of research in regenerative medicine, with the potential to treat, prevent, and cure disease. In recent years, the number of studies focusing on SCs for the treatment of erectile dysfunction (ED) and other sexual dysfunctions has increased significantly. AREAS COVERED This review includes critical ED targets and preclinical studies, including the use of SCs and animal models in diabetes, aging, cavernous nerve injury, and Peyronie's disease. A literature search was performed on PubMed for English articles. EXPERT OPINION Combination treatment offers better results than monotherapy to improve pathological changes in diabetic ED. Regenerative medicine is a promising approach for the maintenance of sexual health and erectile function later in life. Cavernous nerve regeneration and vascular recovery employing SC treatment may be focused on radical prostatectomy-induced ED. Notwithstanding, there are a number of hurdles to overcome before SC-based therapies for ED are considered in clinical settings. Paracrine action, not cellular differentiation, appears to be the principal mechanism of action underlying SC treatment of ED. Intracavernosal injection of a single SC type should be the choice protocol for future clinical trials.
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Affiliation(s)
- Serap Gur
- a Department of Urology , Tulane University Health Sciences Center , New Orleans , LA , USA.,b Department of Pharmacology, Faculty of Pharmacy , Ankara University , Ankara , Turkey
| | - Asim B Abdel-Mageed
- a Department of Urology , Tulane University Health Sciences Center , New Orleans , LA , USA
| | - Suresh C Sikka
- a Department of Urology , Tulane University Health Sciences Center , New Orleans , LA , USA
| | - Wayne J G Hellstrom
- a Department of Urology , Tulane University Health Sciences Center , New Orleans , LA , USA
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Vakalopoulos I, Memmos D, Mykoniatis I, Toutziaris C, Dimitriadis G. Stem cell therapy in erectile dysfunction: science fiction or realistic treatment option? Hormones (Athens) 2018; 17:315-320. [PMID: 30132303 DOI: 10.1007/s42000-018-0050-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 05/22/2018] [Indexed: 01/11/2023]
Abstract
Stem cell therapy has become a subject of great interest to researchers worldwide. One of the medical conditions being studied for possible treatment with the use of stem cells is erectile dysfunction, and particularly organic and post-radical prostatectomy erectile dysfunction. However, is stem cell therapy a viable treatment option for erectile dysfunction? The current body of literature provides a wide array of clinical trials performed on animal models simulating different types of human erectile dysfunction. Unfortunately, only a handful of studies have been performed on human patients and almost all of them were phase 1 studies limited by the small sample size. This review aims to summarize the available evidence on the use of stem cell therapy for the treatment of erectile dysfunction and also to provide an overview of upcoming and ongoing clinical trials in this field.
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Affiliation(s)
- Ioannis Vakalopoulos
- 1st Department of Urology, Georgios Gennimatas Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Memmos
- 1st Department of Urology, Georgios Gennimatas Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Ioannis Mykoniatis
- 1st Department of Urology, Georgios Gennimatas Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Chrysovalantis Toutziaris
- 1st Department of Urology, Georgios Gennimatas Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Dimitriadis
- 1st Department of Urology, Georgios Gennimatas Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Abstract
INTRODUCTION Numerous studies have highlighted the intimate association between erectile dysfunction (ED) and diabetes mellitus (DM). However, the true pathogenesis of ED among diabetic men has not yet been fully discovered. The treatment of ED in diabetic patients remains an interesting area of research. The last two decades have witnessed phenomenal advances in the management of ED with the efficacy of pharmacotherapy for ED in diabetic patients encouraging, especially with introduction of innovative conservative tools for treatment. AREAS COVERED The aim of this review is to discuss the currently available information on ED pharmacotherapy in diabetic males and provide an expert perspective on the current treatment strategies. EXPERT OPINION Conservative treatment remains the initial step for the treatment of ED in diabetic patients. This kind of therapy consists of different modalities including: oral treatments, intracavernosal pharmacotherapy, and evolving modalities such as soluble guanylate cyclase activators, stem cells (SCs), and alternative treatments such as herbal treatment and transdermal/topical pharmacotherapy. However, it should be noted that the currently available pharmacotherapy is still far from ideal. One hopes to witness new drugs and technologies that may revolutionize ED treatment in the future, especially in such complex cases as DM.
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Affiliation(s)
- Ahmed I El-Sakka
- a Department of Urology , Suez Canal University , Ismailia , Egypt
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Eckhardt BL, Gagliardi M, Iles L, Evans K, Ivan C, Liu X, Liu CG, Souza G, Rao A, Meric-Bernstam F, Ueno NT, Bartholomeusz GA. Clinically relevant inflammatory breast cancer patient-derived xenograft-derived ex vivo model for evaluation of tumor-specific therapies. PLoS One 2018; 13:e0195932. [PMID: 29768500 PMCID: PMC5955489 DOI: 10.1371/journal.pone.0195932] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/03/2018] [Indexed: 02/05/2023] Open
Abstract
Inflammatory breast cancer (IBC) is a rare and aggressive presentation of invasive breast cancer with a 62% to 68% 5-year survival rate. It is the most lethal form of breast cancer, and early recognition and treatment is important for patient survival. Like non-inflammatory breast cancer, IBC comprises multiple subtypes, with the triple-negative subtype being overrepresented. Although the current multimodality treatment regime of anthracycline- and taxane-based neoadjuvant therapy, surgery, and radiotherapy has improved the outcome of patients with triple-negative IBC, overall survival continues to be worse than in patients with non-inflammatory locally advanced breast cancer. Translation of new therapies into the clinics to successfully treat IBC has been poor, in part because of the lack of in vitro preclinical models that can accurately predict the response of the original tumor to therapy. We report the generation of a preclinical IBC patient-derived xenograft (PDX)-derived ex vivo (PDXEx) model and show that it closely replicates the tissue architecture of the original PDX tumor harvested from mice. The gene expression profile of our IBC PDXEx model had a high degree of correlation to that of the original tumor. This suggests that the process of generating the PDXEx model did not significantly alter the molecular signature of the original tumor. We demonstrate a high degree of similarity in drug response profile between a PDX mouse model and our PDXEx model generated from the same original PDX tumor tissue and treated with the same panel of drugs, indicating that our PDXEx model had high predictive value in identifying effective tumor-specific therapies. Finally, we used our PDXEx model as a platform for a robotic-based high-throughput drug screen of a 386-drug anti-cancer compound library. The top candidates identified from this drug screen all demonstrated greater therapeutic efficacy than the standard-of-care drugs used in the clinic to treat triple-negative IBC, doxorubicin and paclitaxel. Our PDXEx model is simple, and we are confident that it can be incorporated into a PDX mouse system for use as a first-pass screening platform. This will permit the identification of effective tumor-specific therapies with high predictive value in a resource-, time-, and cost-efficient manner.
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Affiliation(s)
- Bedrich L. Eckhardt
- Department of Breast Medical Oncology, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Maria Gagliardi
- Department of Breast Medical Oncology, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - LaKesla Iles
- Department of Experimental Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Kurt Evans
- Department of Investigational Cancer Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Cristina Ivan
- Department of Experimental Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Xiuping Liu
- Department of Experimental Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Chang-Gong Liu
- Department of Experimental Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Glauco Souza
- Nano3D Biosciences, Houston, Texas, United States of America
- University of Texas Health Science Center, Houston, Texas, United States of America
| | - Arvind Rao
- Department of Bioinformatics and Computational Biology, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Naoto T. Ueno
- Department of Breast Medical Oncology, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
| | - Geoffrey A. Bartholomeusz
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
- Department of Experimental Therapeutics, The University of Texas, MD, Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail:
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Aijie C, Xuan L, Huimin L, Yanli Z, Yiyuan K, Yuqing L, Longquan S. Nanoscaffolds in promoting regeneration of the peripheral nervous system. Nanomedicine (Lond) 2018; 13:1067-1085. [PMID: 29790811 DOI: 10.2217/nnm-2017-0389] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The ability to surgically repair peripheral nerve injuries is urgently needed. However, traditional tissue engineering techniques, such as autologous nerve transplantation, have some limitations. Therefore, tissue engineered autologous nerve grafts have become a suitable choice for nerve repair. Novel tissue engineering techniques derived from nanostructured conduits have been shown to be superior to other successful functional neurological structures with different scaffolds in terms of providing the required structures and properties. Additionally, different biomaterials and growth factors have been added to nerve scaffolds to produce unique biological effects that promote nerve regeneration and functional recovery. This review summarizes the application of different nanoscaffolds in peripheral nerve repair and further analyzes how the nanoscaffolds promote peripheral nerve regeneration.
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Affiliation(s)
- Chen Aijie
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
- Guangdong Provincial Key Laboratory of Construction & Detection in Tissue Engineering, Guangzhou 510515, China
| | - Lai Xuan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Liang Huimin
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Zhang Yanli
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Kang Yiyuan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Lin Yuqing
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Shao Longquan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
- Guangdong Provincial Key Laboratory of Construction & Detection in Tissue Engineering, Guangzhou 510515, China
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Hox M, Mann-Gow T, Lund L, Zvara P. Cavernous Nerve Stimulation and Recording of Intracavernous Pressure in a Rat. J Vis Exp 2018. [PMID: 29733311 DOI: 10.3791/56807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The stimulation of the cavernous nerve (CN) and measurement of intracavernous pressure (ICP) have been used extensively to test and evaluate therapies for erectile dysfunction. However, the methods used vary between laboratories, and pitfalls still exist. The goal of this study was to describe a surgical technique that would provide a reliable and reproducible model. By exposing the ischiocavernosus muscle at its point of insertion on the ischial tuberosity, the penile crus could be cannulated with minimal dissection and injury to the structures involved in erectile function. Repeated stimulation of the CN, without the need for lifting and drying, was achieved by using a 125 µm bipolar silver electrode and biocompatible silicon glue to isolate the electrode-nerve complex. This method prevents neuropraxia by reducing stretching and drying the nerve and provides complete isolation of the nerve, negating electrical leakage and preventing stimulation of alternative pathways.
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Affiliation(s)
- Morten Hox
- Biomedical Laboratory and the Research Unit of Urology, Department of Clinical Research, University of Southern Denmark
| | | | - Lars Lund
- Research Unit of Urology, Department of Clinical Research, University of Southern Denmark; Department of Urology, Odense University Hospital
| | - Peter Zvara
- Biomedical Laboratory and the Research Unit of Urology, Department of Clinical Research, University of Southern Denmark; Department of Urology, Odense University Hospital;
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Role of Nanotechnology in Erectile Dysfunction Treatment. J Sex Med 2017; 14:36-43. [PMID: 28065359 DOI: 10.1016/j.jsxm.2016.11.318] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/22/2016] [Accepted: 11/27/2016] [Indexed: 01/08/2023]
Abstract
INTRODUCTION The biological importance of nanotechnology-based delivery vehicles for in vivo tissue regeneration is gaining acceptance by the medical community; however, its relevance and incorporation into the treatment of sexual dysfunction are evolving and have not been well evaluated. AIM To provide scientific evidence examining the use of state-of-the-art nanotechnology-based delivery methodology in the treatment of erectile dysfunction (ED) in animal models and in patients. METHODS This review assessed the current basic science literature examining the role of nanotechnology-based delivery vehicles in the development of potential ED therapies. RESULTS There are four primary areas where nanotechnology has been applied for ED treatment: (i) topical delivery of drugs for on-demand erectile function, (ii) injectable gels into the penis to prevent morphologic changes after prostatectomy, (iii) hydrogels to promote cavernous nerve regeneration or neuroprotection, and (iv) encapsulation of drugs to increase erectile function (primarily of phosphodiesterase type 5 inhibitors). CONCLUSION Basic science studies provide evidence for a significant and evolving role for nanotechnology in the development of therapies for ED and suggest that properly administered nano-based therapies might be advantageous for treating male sexual dysfunction.
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Assembly of Hepatocyte Spheroids Using Magnetic 3D Cell Culture for CYP450 Inhibition/Induction. Int J Mol Sci 2017; 18:ijms18051085. [PMID: 28524079 PMCID: PMC5454994 DOI: 10.3390/ijms18051085] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/09/2017] [Accepted: 05/13/2017] [Indexed: 12/27/2022] Open
Abstract
There is a significant need for in vitro methods to study drug-induced liver injury that are rapid, reproducible, and scalable for existing high-throughput systems. However, traditional monolayer and suspension cultures of hepatocytes are difficult to handle and risk the loss of phenotype. Generally, three-dimensional (3D) cell culture platforms help recapitulate native liver tissue phenotype, but suffer from technical limitations for high-throughput screening, including scalability, speed, and handling. Here, we developed a novel assay for cytochrome P450 (CYP450) induction/inhibition using magnetic 3D cell culture that overcomes the limitations of other platforms by aggregating magnetized cells with magnetic forces. With this platform, spheroids can be rapidly assembled and easily handled, while replicating native liver function. We assembled spheroids of primary human hepatocytes in a 384-well format and maintained this culture over five days, including a 72 h induction period with known CYP450 inducers/inhibitors. CYP450 activity and viability in the spheroids were assessed and compared in parallel with monolayers. CYP450 activity was induced/inhibited in spheroids as expected, separate from any toxic response. Spheroids showed a significantly higher baseline level of CYP450 activity and induction over monolayers. Positive staining in spheroids for albumin and multidrug resistance-associated protein (MRP2) indicates the preservation of hepatocyte function within spheroids. The study presents a proof-of-concept for the use of magnetic 3D cell culture for the assembly and handling of novel hepatic tissue models.
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Souza GR, Tseng H, Gage JA, Mani A, Desai P, Leonard F, Liao A, Longo M, Refuerzo JS, Godin B. Magnetically Bioprinted Human Myometrial 3D Cell Rings as A Model for Uterine Contractility. Int J Mol Sci 2017; 18:ijms18040683. [PMID: 28333087 PMCID: PMC5412269 DOI: 10.3390/ijms18040683] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 03/14/2017] [Accepted: 03/16/2017] [Indexed: 12/16/2022] Open
Abstract
Deregulation in uterine contractility can cause common pathological disorders of the female reproductive system, including preterm labor, infertility, inappropriate implantation, and irregular menstrual cycle. A better understanding of human myometrium contractility is essential to designing and testing interventions for these important clinical problems. Robust studies on the physiology of human uterine contractions require in vitro models, utilizing a human source. Importantly, uterine contractility is a three-dimensionally (3D)-coordinated phenomenon and should be studied in a 3D environment. Here, we propose and assess for the first time a 3D in vitro model for the evaluation of human uterine contractility. Magnetic 3D bioprinting is applied to pattern human myometrium cells into rings, which are then monitored for contractility over time and as a function of various clinically relevant agents. Commercially available and patient-derived myometrium cells were magnetically bioprinted into rings in 384-well formats for throughput uterine contractility analysis. The bioprinted uterine rings from various cell origins and patients show different patterns of contractility and respond differently to clinically relevant uterine contractility inhibitors, indomethacin and nifedipine. We believe that the novel system will serve as a useful tool to evaluate the physiology of human parturition while enabling high-throughput testing of multiple agents and conditions.
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Affiliation(s)
| | | | - Jacob A Gage
- Nano3D Biosciences, Houston, TX 77030, USA.
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | - Arunmani Mani
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | | | - Fransisca Leonard
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA.
| | | | - Monica Longo
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | - Jerrie S Refuerzo
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA.
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Clavell-Hernández J, Wang R. The controversy surrounding penile rehabilitation after radical prostatectomy. Transl Androl Urol 2017; 6:2-11. [PMID: 28217445 PMCID: PMC5313301 DOI: 10.21037/tau.2016.08.14] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Radical prostatectomy (RP) techniques have been refined in the last few decades. Despite nerve-sparing surgery, erectile dysfunction (ED) still seems to be affecting more than half of patients undergoing RP. Penile rehabilitation consists of understanding the mechanisms that affect erectile function (EF) and utilizing pharmacologic agents, devices or interventions to promote male sexual function before and after any insult to the penile erectile physiologic axis. There currently is a limited amount of clinical trials that assess treatments with the goal of recovering post-prostatectomy EF. The goal of this article is to assess a contemporary series of trials that study penile rehabilitation. Although the current evidence lacks to prove its irrefutable effectiveness, advancements in research and technology forecast a promising future in penile rehabilitation management.
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Affiliation(s)
- Jonathan Clavell-Hernández
- Division of Urology, Department of Surgery, University of Texas Medical School at Houston, Houston, Texas, USA
| | - Run Wang
- Division of Urology, Department of Surgery, University of Texas Medical School at Houston, Houston, Texas, USA;; University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Three-Dimensional Bioprinting Nanotechnologies towards Clinical Application of Stem Cells and Their Secretome in Salivary Gland Regeneration. Stem Cells Int 2016; 2016:7564689. [PMID: 28090208 PMCID: PMC5206456 DOI: 10.1155/2016/7564689] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 11/23/2016] [Indexed: 01/23/2023] Open
Abstract
Salivary gland (SG) functional damage and severe dry mouth (or xerostomia) are commonly observed in a wide range of medical conditions from autoimmune to metabolic disorders as well as after radiotherapy to treat specific head and neck cancers. No effective therapy has been developed to completely restore the SG functional damage on the long-term and reverse the poor quality of life of xerostomia patients. Cell- and secretome-based strategies are currently being tested in vitro and in vivo for the repair and/or regeneration of the damaged SG using (1) epithelial SG stem/progenitor cells from salispheres or explant cultures as well as (2) nonepithelial stem cell types and/or their bioactive secretome. These strategies will be the focus of our review. Herein, innovative 3D bioprinting nanotechnologies for the generation of organotypic cultures and SG organoids/mini-glands will also be discussed. These bioprinting technologies will allow researchers to analyze the secretome components and extracellular matrix production, as well as their biofunctional effects in 3D mini-glands ex vivo. Improving our understanding of the SG secretome is critical to develop effective secretome-based therapies towards the regeneration and/or repair of all SG compartments for proper restoration of saliva secretion and flow into the oral cavity.
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Seftel AD. Re: The Effects of Adipose-Derived Stem Cells in a Rat Model of Tobacco-Associated Erectile Dysfunction. J Urol 2016; 196:1587-1588. [PMID: 27751499 DOI: 10.1016/j.juro.2016.08.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2016] [Indexed: 11/28/2022]
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Ismail EA, El-Sakka AI. Innovative trends and perspectives for erectile dysfunction treatment: A systematic review. Arab J Urol 2016; 14:84-93. [PMID: 27493808 PMCID: PMC4963167 DOI: 10.1016/j.aju.2016.04.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 04/01/2016] [Accepted: 04/13/2016] [Indexed: 12/31/2022] Open
Abstract
Objective To review contemporary knowledge concerning the innovative trends and perspectives in the treatment of erectile dysfunction (ED). Methods Medline was reviewed for English-language journal articles between January 2000 and March 2016, using the terms ‘erectile dysfunction treatments’, ‘new trends’ and ‘perspectives’. In all, 114 original articles and 16 review articles were found to be relevant. Of the 76 cited papers that met the inclusion criteria, 51 papers had level of evidence of 1a–2b, whilst 25 had level of evidence of 3–4. Criteria included all pertinent review articles, randomised controlled trials with tight methodological design, cohort studies, and retrospective analyses. We also manually reviewed references from selected articles. Results Several interesting studies have addressed novel phosphodiesterase type 5 inhibitors (PDE5Is), orodispersible tablets, their recent chronic use, and combination with other agents. A few controlled studies have addressed herbal medicine as a sole or additional treatment for ED. Experimental studies and exciting review papers have addressed stem cells as novel players in the field of ED treatment. Other recent articles have revised the current status of low-intensity extracorporeal shockwave therapy in the field of ED. A few articles without long-term data have addressed new technologies that included: external penile support devices, penile vibrators, tissue engineering, nanotechnology, and endovascular tools for ED treatment. Conclusions The current treatment of ED is still far from ideal. We expect to see new drugs and technologies that may revolutionise ED treatment, especially in complex cases.
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Key Words
- (hUCB-)MSCs, (human umbilical cord blood) mesenchymal stem cells
- ADSCs, adipose tissue-derived stem cells
- ED, erectile dysfunction
- Erectile dysfunction
- FDA, USA Food and Drug Administration
- Herbal treatment
- ICI, intracavernosal injection
- LI-ESWT, low-intensity extracorporeal shockwave therapy
- NO, nitric oxide
- PDE5 inhibitors
- PDE5Is, phosphodiesterase type 5 inhibitors
- RP, radical prostatectomy
- SC, stem cell
- Shockwave therapy
- Stem cells
- VED, vacuum erectile device
- VEGF, vascular endothelial growth factor
- cGMP, cyclic guanosine monophosphate
- cNOS, constitutive nitric oxide synthase
- sGC, soluble guanylate cyclase
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Affiliation(s)
- Ezzat A Ismail
- Department of Urology, Suez Canal University, Ismailia, Egypt
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Sexual dysfunction: Magnetic control of stem cells: feasible for ED. Nat Rev Urol 2015; 13:7. [PMID: 26572084 DOI: 10.1038/nrurol.2015.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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