1
|
Fridayana FR, Ock J, Liu FY, Niloofar L, Vo MN, Huang Y, Yin GN, Ryu JK. Heparin-binding epidermal growth factor-like growth factor improves erectile function in streptozotocin-induced diabetic mice. J Sex Med 2024; 21:751-761. [PMID: 39033084 DOI: 10.1093/jsxmed/qdae079] [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: 02/10/2024] [Revised: 06/05/2024] [Accepted: 06/18/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Heparin-binding epidermal growth factor-like growth factor (HB-EGF) serves as a pro-angiogenic factor; however, there is to our knowledge currently no reported research on the relationship between HB-EGF and diabetic erectile dysfunction (ED). AIM In this study we aimed to determine whether HB-EGF can improve the erectile function of streptozotocin-induced diabetic mice and to explore the related mechanisms. METHODS Eight-week-old male C57BL/6 mice were used for diabetes induction. Diabetes mellitus (DM) was induced by low-dose injections of streptozotocin (50 mg/kg) for 5 consecutive days. Eight weeks after streptozotocin injections, DM was determined by measuring blood glucose and body weight. Diabetic mice were treated with two intracavernous administrations of phosphate-buffered saline (20 μL) or various doses of HB-EGF (days -3 and 0; 1, 5, and 10 μg in 20 μL of phosphate-buffered saline). The angiogenesis effect of HB-EGF was confirmed by tube formation and migration assays in mouse cavernous endothelial cells and mouse cavernous pericytes under high-glucose conditions. Erectile function was measured by electrical stimulation of the cavernous nerve, as well as histological examination and Western blot analysis for mechanism assessment. OUTCOMES In vitro angiogenesis, cell proliferation, in vivo intracavernous pressure, neurovascular regeneration, cavernous permeability, and survival signaling were the outcomes measured. RESULTS Expression of HB-EGF was reduced under diabetic conditions. Exogenous HB-EGF induced angiogenesis in mouse cavernous endothelial cells and mouse cavernous pericytes under high-glucose conditions. Erectile function was decreased in the DM group, whereas administration of HB-EGF resulted in a significant improvement of erectile function (91% of the age-matched control group) in association with increased neurovascular content, including cavernous endothelial cells, pericytes, and neuronal cells. Histological and Western blot analyses revealed a significant increase in the permeability of the corpus cavernosum in DM mice, which was attenuated by HB-EGF treatment. The protein expression of phospho-Akt Ser473 and phosphorylated endothelial nitric oxide synthase Ser1177 increased after HB-EGF treatment. CLINICAL IMPLICATIONS The use of HB-EGF may be an effective strategy to treat ED associated with DM or other neurovascular diseases. STRENGTHS AND LIMITATIONS Similarly to other pro-angiogenic factors, HB-EGF has dual roles in vascular and neuronal development. Our study focused on broadly evaluating the role of HB-EGF in diabetic ED. In view of the properties of HB-EGF as an angiogenic factor, its dose concentration should be strictly controlled to avoid potential side effects. CONCLUSION In the diabetic ED mouse model in this study erectile function was improved by HB-EGF, which may provide new treatment strategies for patients with ED who do not respond to phosphodiesterase 5 Inhibitors.
Collapse
Affiliation(s)
- Fitri Rahma Fridayana
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Fang-Yuan Liu
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Lashkari Niloofar
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Minh Nhat Vo
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Yan Huang
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| |
Collapse
|
2
|
Bae SG, Yin GN, Ock J, Suh JK, Ryu JK, Park J. Single-cell transcriptome analysis of cavernous tissues reveals the key roles of pericytes in diabetic erectile dysfunction. eLife 2024; 12:RP88942. [PMID: 38856719 PMCID: PMC11164535 DOI: 10.7554/elife.88942] [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] [Indexed: 06/11/2024] Open
Abstract
Erectile dysfunction (ED) affects a significant proportion of men aged 40-70 and is caused by cavernous tissue dysfunction. Presently, the most common treatment for ED is phosphodiesterase 5 inhibitors; however, this is less effective in patients with severe vascular disease such as diabetic ED. Therefore, there is a need for development of new treatment, which requires a better understanding of the cavernous microenvironment and cell-cell communications under diabetic condition. Pericytes are vital in penile erection; however, their dysfunction due to diabetes remains unclear. In this study, we performed single-cell RNA sequencing to understand the cellular landscape of cavernous tissues and cell type-specific transcriptional changes in diabetic ED. We found a decreased expression of genes associated with collagen or extracellular matrix organization and angiogenesis in diabetic fibroblasts, chondrocytes, myofibroblasts, valve-related lymphatic endothelial cells, and pericytes. Moreover, the newly identified pericyte-specific marker, Limb Bud-Heart (Lbh), in mouse and human cavernous tissues, clearly distinguishing pericytes from smooth muscle cells. Cell-cell interaction analysis revealed that pericytes are involved in angiogenesis, adhesion, and migration by communicating with other cell types in the corpus cavernosum; however, these interactions were highly reduced under diabetic conditions. Lbh expression is low in diabetic pericytes, and overexpression of LBH prevents erectile function by regulating neurovascular regeneration. Furthermore, the LBH-interacting proteins (Crystallin Alpha B and Vimentin) were identified in mouse cavernous pericytes through LC-MS/MS analysis, indicating that their interactions were critical for maintaining pericyte function. Thus, our study reveals novel targets and insights into the pathogenesis of ED in patients with diabetes.
Collapse
Affiliation(s)
- Seo-Gyeong Bae
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST)GwangjuRepublic of Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
- Program in Biomedical Science & Engineering, Inha UniversityIncheonRepublic of Korea
| | - Jihwan Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST)GwangjuRepublic of Korea
| |
Collapse
|
3
|
Ock J, Liu FY, Fridayana FR, Niloofar L, Vo MN, Huang Y, Piao S, Zhou T, Guonan Y. MicroRNA-148a-3p in pericyte-derived extracellular vesicles improves erectile function in diabetic mice by promoting cavernous neurovascular regeneration. BMC Urol 2023; 23:209. [PMID: 38104056 PMCID: PMC10725581 DOI: 10.1186/s12894-023-01378-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 11/23/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND To investigate the regulatory role of microRNA (miR)-148a-3p in mouse corpus cavernous pericyte (MCPs)-derived extracellular vesicles (EVs) in the treatment of diabetes-induced erectile dysfunction (ED). METHODS Mouse corpus cavernous tissue was used for MCP primary culture and EV isolation. Small-RNA sequencing analysis was performed to assess the type and content of miRs in MCPs-EVs. Four groups of mice were used: control nondiabetic mice and streptozotocin-induced diabetic mice receiving two intracavernous injections (days - 3 and 0) of phosphate buffered saline, MCPs-EVs transfected with reagent control, or MCPs-EVs transfected with a miR-148a-3p inhibitor. miR-148a-3p function in MCPs-EVs was evaluated by tube-formation assay, migration assay, TUNEL assay, intracavernous pressure, immunofluorescence staining, and Western blotting. RESULTS We extracted EVs from MCPs, and small-RNA sequencing analysis showed miR-148a-3p enrichment in MCPs-EVs. Exogenous MCPs-EV administration effectively promoted mouse cavernous endothelial cell (MCECs) tube formation, migration, and proliferation, and reduced MCECs apoptosis under high-glucose conditions. These effects were significantly attenuated in miR-148a-3p-depleted MCPs-EVs, which were extracted after inhibiting miR-148a-3p expression in MCPs. Repetitive intracavernous injections of MCPs-EVs improved erectile function by inducing cavernous neurovascular regeneration in diabetic mice. Using online bioinformatics databases and luciferase report assays, we predicted that pyruvate dehydrogenase kinase-4 (PDK4) is a potential target gene of miR-148a-3p. CONCLUSIONS Our findings provide new and reliable evidence that miR-148a-3p in MCPs-EVs significantly enhances cavernous neurovascular regeneration by inhibiting PDK4 expression in diabetic mice.
Collapse
Affiliation(s)
- Jiyeon Ock
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Fang-Yuan Liu
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Fitri Rahma Fridayana
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, South Korea
| | - Lashkari Niloofar
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, South Korea
| | - Minh Nhat Vo
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Yan Huang
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, South Korea
| | - Shuguang Piao
- Department of Urology, Changhai Hospital Affiliated with the Naval Medicine University, Shanghai, 200433, People's Republic of China.
| | - Tie Zhou
- Department of Urology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, No. 1279 Sanmen Road, Shanghai, 200434, China.
| | - Yin Guonan
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd ST, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea.
| |
Collapse
|
4
|
Zhu B, Niu Y, Niu L, Zhang X, Liu F. Exploring the application of sildenafil for high-fat diet-induced erectile dysfunction based on interleukin-18-mediated NLRP3/Caspase-1 signaling pathway. Sex Med 2023; 11:qfad044. [PMID: 37636019 PMCID: PMC10460117 DOI: 10.1093/sexmed/qfad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/29/2023] Open
Abstract
Background Inflammation is a key risk factor for heart disease and has also been linked to erectile dysfunction (ED). Sildenafil is a phosphodiesterase type 5 inhibitor with a strong antioxidant effect. Interleukin (IL)-18 is a proinflammatory factor. Excessive production and release of IL-18 disrupt the balance between IL-18 and IL-18 binding proteins in certain inflammatory diseases, leading to the occurrence of pathological inflammation. Aim We evaluated the effects of sildenafil on erectile function in a rat model of high-fat diet-induced ED. Methods Male Sprague Dawley rats (6 weeks old) were divided into 5 groups: control, ED, sildenafil, IL-18, and IL-18 + sildenafil. Subsequently, intracavernous pressure and mean arterial pressure were used to assess the erectile function of these rats. The expression of endothelial nitric oxide synthase, pyroptosis factors, and the ratio of smooth muscle cells and collagen fibers were evaluated in the serum and corpora tissue. Outcomes Exploring the role and mechanism of sildenafil in ED through NLRP3-mediated pyroptosis pathway. Results In comparison to the ED and IL-18 groups, there were statistically significant increases in the ratio of intracavernous pressure to mean arterial pressure, endothelial nitric oxide synthase expression, and the ratio of smooth muscle cells to collagen fibers following sildenafil intervention (P < .05). The sildenafil group and IL-18 + sildenafil group also showed statistically significant decreases the expression of NLRP3, caspase-1, and gasdermin D (P < .05). Clinical Implications Sildenafil can improve erectile dysfunction by inhibiting inflammation. Strengths and Limitations Strengths are that the relationship between pyroptosis and ED has been verified through in vitro and in vivo experiments. The limitation is that the conclusions drawn from animal and cells experiments need to be confirmed in clinical research. Conclusion Sildenafil may reduce the effect of IL-18-induced inflammation in high-fat diet-induced ED rats through NLRP3/caspase-1 pyroptosis pathway.
Collapse
Affiliation(s)
- Bingbing Zhu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, 830011, China
| | - Yangjiu Niu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, 830011, China
| | - Lipan Niu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, 830011, China
| | - Xijia Zhang
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, 830011, China
| | - Fengxia Liu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, 830011, China
| |
Collapse
|
5
|
Yin GN. Pericyte-derived heme-binding protein 1 promotes angiogenesis and improves erectile function in diabetic mice. Investig Clin Urol 2022; 63:464-474. [PMID: 35796141 PMCID: PMC9262492 DOI: 10.4111/icu.20220038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/10/2022] [Accepted: 05/18/2022] [Indexed: 01/12/2023] Open
Abstract
PURPOSE To comprehensively evaluate the effect on angiogenesis of heme-binding protein 1 (Hebp1) in the treatment of diabetes-induced erectile dysfunction. MATERIALS AND METHODS Mouse corpus cavernosum endothelial cells and pericytes were used for in vitro study. Four groups of mice were used: control nondiabetic mice and streptozotocin-induced diabetic mice receiving two intracavernous injections of phosphate-buffered saline, Hebp1 (1 µg), or Hebp1 (5 µg). The function of Hebp1 in diabetic conditions was evaluated by tube formation assay, aorta ring assay, migration assay, intracavernous pressure, immunofluorescence staining, and Western blot experiments. RESULTS We report that Hebp1 is more highly expressed in mouse corpus cavernosum pericytes and can effectively promote endothelial cell angiogenesis under high-glucose conditions. Following exogenous administration of Hebp1 protein, we found that elevated Hebp1 levels can improve the erectile function of diabetic mice, which is achieved by reducing reactive oxygen species levels and activating the PI3K/AKT/eNOS signaling pathway. CONCLUSIONS Our findings demonstrate that Hebp1 can promote angiogenesis and improve erectile function under diabetic conditions.
Collapse
Affiliation(s)
- Guo Nan Yin
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea.
| |
Collapse
|
6
|
Chen Y, Qi T, Zhu SG, Li H, Feng JX, Zhang B, Li SX, Ma S, Ma Q, Chu QJ, Yang WT, Chen J. Culture and purification of SD rat corpus cavernosum endothelial cells by enzymatic digestion combined with mechanical extrusion and fixed-point digestion. Andrologia 2021; 53:e14194. [PMID: 34328658 DOI: 10.1111/and.14194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/23/2021] [Accepted: 07/12/2021] [Indexed: 11/28/2022] Open
Abstract
To explore a new method of in vitro culture and purification of rat corpus cavernosum endothelial cells (CCECs). Male Sprague-Dawley rats' penile tissue were digested with elastase or collagenase combined with mechanical extrusion to isolate and culture the CCECs. The fixed-point digestion method was used to purify the primary cells. High-purity CCECs were successfully isolated. Following the digestion of the primary CCECs by elastase or collagenase coupled with mechanical extrusion, the cells were paving stone- and cobblestone-shaped over 10 days. The cell purity yielded in the second generation (P2) CCECs after using the fixed-point digestion method was significantly high. Compared with primary CCECs extracted by elastase digestion combined with the mechanical extrusion method, CCECs cultured by collagenase digestion yielded higher purity and a more stable morphology after fixed-point digestion and purification. Immunofluorescence staining of the third generation CCECs and the expression results of endothelial cell-associated marker antibodies CD31 and VWF were positive, and flow cytometry showed the purity of CCECs was 96.9%. Enzymatic digestion combined with mechanical extrusion and fixed-point digestion is a simple, economical method for in vitro culture and purification of CCECs, which is conducive to studying the pathophysiological mechanisms of endothelial dysfunction and erectile dysfunction.
Collapse
Affiliation(s)
- Ying Chen
- Graduate school, Guangxi University of Chinese Medicine, Nanning, China
| | - Tao Qi
- Department of Infertility and Sexual Medicine, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shu-Guang Zhu
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hao Li
- Department of Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province, China
| | - Jia-Xin Feng
- Department of urinary surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Bin Zhang
- Department of Infertility and Sexual Medicine, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shi-Xiong Li
- Department of Infertility and Sexual Medicine, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuai Ma
- Graduate school, Guangxi University of Chinese Medicine, Nanning, China
| | - Qiang Ma
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Qing-Jun Chu
- Department of Center for Reproductive Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wen-Tao Yang
- Department of Andrology, the Ruikang Hospital Affiliated Guangxi University of Chinese Medicine, Nanning, China
| | - Jun Chen
- Department of Infertility and Sexual Medicine, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
7
|
A Method to Isolate Pericytes From the Mouse Urinary Bladder for the Study of Diabetic Bladder Dysfunction. Int Neurourol J 2021; 24:332-340. [PMID: 33401354 PMCID: PMC7788335 DOI: 10.5213/inj.2040172.086] [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: 05/19/2020] [Accepted: 06/10/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose Pericytes surround the endothelial cells in microvessels and play a distinct role in controlling vascular permeability and maturation. The loss of pericyte function is known to be associated with diabetic retinopathy and erectile dysfunction. This study aimed to establish a technique for the isolation of pericytes from the mouse urinary bladder and an in vitro model that mimics in vivo diabetic bladder dysfunction. Methods To avoid contamination with epithelial cells, the urothelial layer was meticulously removed from the underlying submucosa and detrusor muscle layer. The tissues were cut into multiple pieces, and the fragmented tissues were settled by gravity into collagen I-coated culture plates. The cells were cultured under normal-glucose (5 mmol/L) or high-glucose (30 mmol/L) conditions, and tube formation, cell proliferation, and TUNEL assays were performed. We also performed hydroethidine staining to measure superoxide anion production. Results We successfully isolated high-purity pericytes from the mouse urinary bladder. The cells were positively stained for platelet-derived growth factor receptor-β and NG2 and negatively stained for smooth muscle cell markers (desmin and myosin) and an endothelial cell marker (CD31). The number of tubes formed and the number of proliferating cells were significantly lower when the pericytes were exposed to high-glucose conditions compared with normal-glucose conditions. In addition, there were significant increases in superoxide anion production and the number of apoptotic cells when the pericytes were cultured under high-glucose conditions. Conclusions To the best of our knowledge, this is the first study to isolate and culture pericytes from the mouse urinary bladder. Our model would be a useful tool for screening the efficacy of therapeutic candidates targeting pericyte function in diabetic bladder dysfunction and exploring the functional role of specific targets at the cellular level.
Collapse
|
8
|
Yin GN, Ock J, Choi MJ, Limanjaya A, Ghatak K, Song KM, Kwon MH, Suh JK, Ryu JK. Gene expression profiling of mouse cavernous endothelial cells for diagnostic targets in diabetes-induced erectile dysfunction. Investig Clin Urol 2021; 62:90-99. [PMID: 33258323 PMCID: PMC7801162 DOI: 10.4111/icu.20200119] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/24/2020] [Accepted: 06/08/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To investigate potential target genes associated with the diabetic condition in mouse cavernous endothelial cells (MCECs) for the treatment of diabetes-induced erectile dysfunction (ED). MATERIALS AND METHODS Mouse cavernous tissue was embedded into Matrigel, and sprouted cells were subcultivated for other studies. To mimic diabetic conditions, MCECs were exposed to normal-glucose (NG, 5 mmoL) or high-glucose (HG, 30 mmoL) conditions for 72 hours. An RNA-sequencing assay was performed to evaluate gene expression profiling, and RT-PCR was used to validate the sequencing data. RESULTS We isolated MCECs exposed to the two glucose conditions. MCECs showed well-organized tubes and dynamic migration in the NG condition, whereas tube formation and migration were significantly decreased in the HG condition. RNA-sequencing analysis showed that MCECs had different gene profiles in the NG and HG conditions. Among the significantly changed genes, which we classified into 14 major gene categories, we identified that aging-related (9.22%) and angiogenesis-related (9.06%) genes were changed the most. Thirteen genes from the two gene categories showed consistent changes on the RNA-sequencing assay, and these findings were validated by RT-PCR. CONCLUSIONS Our gene expression profiling studies showed that Cyp1a1, Gclm, Igfbp5, Nqo1, Il6, Cxcl5, Olr1, Ctgf, Hbegf, Serpine1, Cyr61, Angptl4, and Loxl2 may play a critical role in diabetes-induced ED through aging and angiogenesis signaling. Additional research is necessary to help us understand the potential mechanisms by which these genes influence diabetes-induced ED.
Collapse
Affiliation(s)
- Guo Nan Yin
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Jiyeon Ock
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Min Ji Choi
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Anita Limanjaya
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Kalyan Ghatak
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Kang Moon Song
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Mi Hye Kwon
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Jun Kyu Suh
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
| | - Ji Kan Ryu
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea.
| |
Collapse
|
9
|
Su X, Huang L, Qu Y, Xiao D, Mu D. Pericytes in Cerebrovascular Diseases: An Emerging Therapeutic Target. Front Cell Neurosci 2019; 13:519. [PMID: 31824267 PMCID: PMC6882740 DOI: 10.3389/fncel.2019.00519] [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] [Received: 05/13/2019] [Accepted: 11/05/2019] [Indexed: 12/14/2022] Open
Abstract
Pericytes are functional components of the neurovascular unit (NVU) that are located around the blood vessels, and their roles in the regulation of cerebral health and diseases has been reported. Currently, the potential properties of pericytes as emerging therapeutic targets for cerebrovascular diseases have attracted considerable attention. Nonetheless, few reviews have comprehensively discussed pericytes and their roles in cerebrovascular diseases. Therefore, in this review, we not only summarized and described the basic characteristics of pericytes but also focused on clarifying the new understanding about the roles of pericytes in the pathogenesis of cerebrovascular diseases, including white matter injury (WMI), hypoxic-ischemic brain damage, depression, neovascular insufficiency disease, and Alzheimer's disease (AD). Furthermore, we summarized the current therapeutic strategies targeting pericytes for cerebrovascular diseases. Collectively, this review is aimed at providing a comprehensive understanding of pericytes and new insights about the use of pericytes as novel therapeutic targets for cerebrovascular diseases.
Collapse
Affiliation(s)
- Xiaojuan Su
- Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Lingyi Huang
- West China College of Stomatology, Sichuan University, Chengdu, China
| | - Yi Qu
- Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Dongqiong Xiao
- Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Dezhi Mu
- Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| |
Collapse
|
10
|
Nguyen NM, Song KM, Choi MJ, Ghatak K, Limanjaya A, Kwon MH, Chung DY, Ock J, Yin GN, Park CS, Suh JK, Ryu JK. Three-Dimensional Reconstruction of Neurovascular Network in Whole Mount Preparations and Thick-Cut Transverse Sections of Mouse Urinary Bladder. World J Mens Health 2019; 39:131-138. [PMID: 31496149 PMCID: PMC7752506 DOI: 10.5534/wjmh.190089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/01/2019] [Indexed: 11/15/2022] Open
Abstract
PURPOSE Proper functional and structural integrity of nervous and vascular system in urinary bladder plays an important role in normal bladder function and the disruption of these structures is known to be related to lower urinary tract symptoms. Here, we present an immunohistochemical staining method that delineates neurovascular structures in the mouse urinary bladder by using immunohistochemical staining with three-dimensional reconstruction. MATERIALS AND METHODS The urinary bladder was harvested from 8-week-old C57BL/6 male mouse. Lamina propria and detrusor muscle layer were dissected for whole mount staining, and thick-cut (60-μm) sections were prepared for full-thickness bladder staining. Immunofluorescent staining of bladder tissue was performed with antibodies against CD31 (an endothelial cell marker), smooth muscle α-actin (a smooth muscle cell marker), NG2 (a pericyte marker), and βIII-tubulin (a neuronal marker). We reconstructed three-dimensional images of bladder neurovascular system from stacks of two-dimensional images. RESULTS Three-dimensional images obtained from thick-cut sections clearly provided good anatomic information about neurovascular structures in the three layers of bladder, such as urothelium, lamina propria, and detrusor muscle layer. Whole mount images of lamina propria and detrusor muscle layer also clearly delineated spatial relationship between nervous and vascular systems. The microvessel density was higher in the lamina propria than in the detrusor muscle layer. Nerve fibers were evenly innervated into the lamina propria and detrusor muscle. CONCLUSIONS This study provides comprehensive insight into three-dimensional neurovascular structures of mouse urinary bladder. Our technique may constitute a standard tool to evaluate pathologic changes in a variety of urinary bladder diseases.
Collapse
Affiliation(s)
- Nhat Minh Nguyen
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Kang Moon Song
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Min Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Kalyan Ghatak
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Anita Limanjaya
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Mi Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Doo Yong Chung
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Chang Shin Park
- Department of Pharmacology and Medicinal Toxicology Research Center, Inha University School of Medicine, Incheon, Korea
| | - Jun Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea.
| | - Ji Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea.
| |
Collapse
|