1
|
Xu Z, Ding Y, Lu W, Zhang K, Wang F, Ding G, Wang J. Comparison of metastatic castration-resistant prostate cancer in bone with other sites: clinical characteristics, molecular features and immune status. PeerJ 2021; 9:e11133. [PMID: 33859877 PMCID: PMC8023235 DOI: 10.7717/peerj.11133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022] Open
Abstract
Metastatic castration-resistant prostate cancer (mCRPC) is the lethal stage and the leading cause of death in prostate cancer patients, among which bone metastasis is the most common site. Here in this article, we downloaded the gene expression data and clinical information from online dataset. We found that prostate cancer metastasis in bone is prone to have higher prostate-specific antigen (PSA) and longer time on first-line androgen receptor signaling inhibitors (ARSI). A total of 1,263 differentially expressed genes (DEGs) were identified and results of functional enrichment analysis indicated the enrichment in categories related to cell migration, cancer related pathways and metabolism. We identified the top 20 hub genes from the PPI network and analyzed the clinical characteristics correlated with these hub genes. Finally, we analyzed the immune cell abundance ratio of each sample in different groups. Our results reveal the different clinical characteristics, the immune cell infiltration pattern in different sites of mCRPC, and identify multiple critical related genes and pathways, which provides basis for individualized treatment.
Collapse
Affiliation(s)
- Zhengquan Xu
- Department of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yanhong Ding
- Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Wei Lu
- Suzhou Vocational Health College, Suzhou, China
| | - Ke Zhang
- Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Fei Wang
- Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Guanxiong Ding
- Department of Urology, Huashan Hospital, Shanghai, China
| | - Jianqing Wang
- Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| |
Collapse
|
2
|
Screening for new peptide substrates for the development of albumin binding anticancer pro-drugs that are cleaved by prostate-specific antigen (PSA) to improve the anti tumor efficacy. Biochem Biophys Rep 2021; 26:100966. [PMID: 33718631 PMCID: PMC7933701 DOI: 10.1016/j.bbrep.2021.100966] [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: 01/24/2020] [Revised: 01/25/2021] [Accepted: 02/15/2021] [Indexed: 11/30/2022] Open
Abstract
Several attempts have been made over the past decade to explore the concept of prodrug strategies that exploit PSA as a molecular target for the release of anticancer drugs in prostate tumors using various prostate specific antigen (PSA)-cleavable peptide linkers, but the desired antitumor and antimetastatic efficacy has not yet been fully achieved. We set out to look for new PSA-cleavable peptide substrates that could be cleaved more rapidly and efficiently than the previously used peptides. To look for the most susceptible PSA-cleavable peptide substrates, we used the so-called spot technology. With the following general formula, we designed 25 different fluorogenic heptapeptides; Cellulose-P5-P4-P3-P2-P1-P1′-P2’ (Fluorophore). The increase of the fluorescence in the supernatant of the reaction mixture was monitored using a 96-well fluorometric plate reader with excitation of λex 485 nm and λem 535 nm. Three sequences showed a high fluorogenic liberation after incubation with PSA, i.e., Arg-Arg-Leu-His-Tyr-Ser-Leu (7), Arg-Arg-Leu-Asn-Tyr-Ser-Leu (8) and Arg-Ser-Ser-Tyr-Arg-Ser-Leu (23). Future incorporation of these optimized substrates in the PSA-cleavable prodrug formulations could further optimize the cleavage pattern and so the release characteristics of these prodrugs to rapidly and efficiently liberate the free cytotoxic agents inside the tumor tissues. Prostate-specific antigen (PSA) represents a molecular target for selectively releasing anticancer agents from prodrugs. Optimal PSA-cleavable peptide substrates are not yet identified. Spot technology is used to elucidate a new PSA-cleavable peptide substrates. We describe new three peptide sequences with a maximal PSA cleavability. These new peptide substrates could improve the antitumor efficacy of PSA-cleavable prodrugs.
Collapse
|
3
|
Lamichhane S, Lee S. Albumin nanoscience: homing nanotechnology enabling targeted drug delivery and therapy. Arch Pharm Res 2020; 43:118-133. [PMID: 31916145 DOI: 10.1007/s12272-020-01204-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/02/2020] [Indexed: 12/21/2022]
Abstract
Albumin is a biocompatible, non-immunogenic and versatile drug carrier system. It has been widely used to extend the half-life, enhance stability, provide protection from degradation and allow specific targeting of therapeutic agents to various disease states. Understanding the role of albumin as a drug delivery and distribution system has increased remarkably in the recent years from the development of albumin-binding prodrugs to albumin as a drug carrier system. The extraordinary surface property of albumin makes it possible to bind various endogenous and exogenous molecules. This review succinctly deals with several albumin-drug conjugates and nanoparticles along with their preparation techniques and focuses on surface-modified albumin and targeting of albumin formulation to specific organs and tissues. It also summarizes research efforts on albumin nanoparticles used for delivering drugs to tumor cells and describes their role in permeation through tumor vasculature and in receptor mediated endocytosis, which is also described in this review. The versatility of albumin and ease of preparation makes it a suitable drug carrier system, swhich is the major objective of this review.
Collapse
Affiliation(s)
- Shrawani Lamichhane
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Daegu, 704-701, Republic of Korea
| | - Sangkil Lee
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Daegu, 704-701, Republic of Korea.
| |
Collapse
|
4
|
Enhanced anti-tumor activity of the Multi-Leu peptide PACE4 inhibitor transformed into an albumin-bound tumor-targeting prodrug. Sci Rep 2019; 9:2118. [PMID: 30765725 PMCID: PMC6376031 DOI: 10.1038/s41598-018-37568-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/23/2018] [Indexed: 01/14/2023] Open
Abstract
The proprotein convertase PACE4 has been validated as a potential target to develop new therapeutic interventions in prostate cancer (PCa). So far, the most effective compound blocking the activity of this enzyme has been designed based on the structure of a small peptide Ac-LLLLRVKR-NH2 known as the Multi-Leu (ML) peptide. Optimization of this scaffold led to the synthesis of compound C23 (Ac-[DLeu]LLLRVK-amidinobenzylamide) with a potent in vivo inhibitory effect on the tumor growth. However, further developments of PACE4 inhibitors may require additional improvements to counter their rapid renal clearance and to increase their tumor targeting efficiency. Herein, we explored the transformation of the ML-peptide into an albumin-binding prodrug containing a tumor specific release mechanism based on the prostate-specific antigen. Our data confirms that intravenous treatment using the ML-peptide alone has little effect on tumor growth, whereas by using the ML-prodrug in LNCaP xenograft-bearing mice it was significantly reduced. Additionally, excellent in vivo stability and tumor-targeting efficiency was demonstrated using a radiolabelled version of this compound. Taken together, these results provide a solid foundation for further development of targeted PACE4 inhibition in PCa.
Collapse
|
5
|
Wei W, He Z, Yang J, Sun M, Sun J. Cytosine arabinoside prodrug designed to bind plasma serum albumin for drug delivery. Drug Deliv Transl Res 2018; 8:1162-1170. [PMID: 29748833 DOI: 10.1007/s13346-018-0534-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Rational design of anticancer prodrugs for efficient albumin binding can show distinct advantages in drug delivery in terms of high drug availability, long systemic circulation, potential targeting effect, and enhanced chemotherapy effect. In the present study, we reported a cytosine arabinoside (Ara-C) prodrug which could well formulate in solution and instantly transform into long-circulating nanocomplexes by hitchhiking blood-circulating albumin after i.v. administration. Specifically, Ara-C was conjugated with an albumin-binding maleimide derivative, the resulting Ara-C maleimide caproic acid conjugate (AM) was well formulated in aqueous solution, conferring high albumin-binding ability in vitro albumin-binding studies. Moreover, in vivo fluorescence images of sulfo-cyanine5 maleimide indirectly demonstrated that AM showed better accumulation in tumors, exhibiting superior tumor targeting ability and antitumor activity compared to Ara-C. Such a uniquely developed strategy, integrating high albumin-binding capability, has great potential to be applied in clinical cancer therapy.
Collapse
Affiliation(s)
- Wei Wei
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, People's Republic of China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, People's Republic of China.
| | - Jincheng Yang
- Department of Pharmaceutical Engineering, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Mengchi Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, People's Republic of China
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, People's Republic of China. .,Municipal Key Laboratory of Biopharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.
| |
Collapse
|
6
|
Localised delivery of doxorubicin to prostate cancer cells through a PSMA-targeted hyperbranched polymer theranostic. Biomaterials 2017; 141:330-339. [DOI: 10.1016/j.biomaterials.2017.07.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/29/2017] [Accepted: 07/04/2017] [Indexed: 12/27/2022]
|
7
|
Groner AC, Cato L, de Tribolet-Hardy J, Bernasocchi T, Janouskova H, Melchers D, Houtman R, Cato ACB, Tschopp P, Gu L, Corsinotti A, Zhong Q, Fankhauser C, Fritz C, Poyet C, Wagner U, Guo T, Aebersold R, Garraway LA, Wild PJ, Theurillat JP, Brown M. TRIM24 Is an Oncogenic Transcriptional Activator in Prostate Cancer. Cancer Cell 2016; 29:846-858. [PMID: 27238081 PMCID: PMC5124371 DOI: 10.1016/j.ccell.2016.04.012] [Citation(s) in RCA: 190] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 12/15/2015] [Accepted: 04/27/2016] [Indexed: 01/22/2023]
Abstract
Androgen receptor (AR) signaling is a key driver of prostate cancer (PC). While androgen-deprivation therapy is transiently effective in advanced disease, tumors often progress to a lethal castration-resistant state (CRPC). We show that recurrent PC-driver mutations in speckle-type POZ protein (SPOP) stabilize the TRIM24 protein, which promotes proliferation under low androgen conditions. TRIM24 augments AR signaling, and AR and TRIM24 co-activated genes are significantly upregulated in CRPC. Expression of TRIM24 protein increases from primary PC to CRPC, and both TRIM24 protein levels and the AR/TRIM24 gene signature predict disease recurrence. Analyses in CRPC cells reveal that the TRIM24 bromodomain and the AR-interacting motif are essential to support proliferation. These data provide a rationale for therapeutic TRIM24 targeting in SPOP mutant and CRPC patients.
Collapse
Affiliation(s)
- Anna C Groner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Laura Cato
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jonas de Tribolet-Hardy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | | | - Hana Janouskova
- Institute of Oncology Research, Bellinzona 6500, Switzerland
| | | | - René Houtman
- PamGene International, Den Bosch 521HH, the Netherlands
| | - Andrew C B Cato
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - Patrick Tschopp
- Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Lei Gu
- Division of Newborn Medicine, Children's Hospital Boston and Department of Cell Biology, Harvard Medical School, Boston, MA 02215, USA
| | - Andrea Corsinotti
- MRC Centre for Regenerative Medicine, Institute for Stem Cell Research, School of Biological Sciences, University of Edinburgh, Edinburgh EH16 4UU, UK; Laboratory Animal Resource Center, Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Qing Zhong
- Institute of Surgical Pathology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Christian Fankhauser
- Institute of Surgical Pathology, University Hospital Zurich, Zurich 8091, Switzerland; Department of Urology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Christine Fritz
- Institute of Surgical Pathology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Cédric Poyet
- Department of Urology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Ulrich Wagner
- Institute of Surgical Pathology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Tiannan Guo
- Department of Biology, Institute of Molecular Systems Biology, Eidgenössische Technische Hochschule (ETH) Zurich, Zurich 8093, Switzerland
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, Eidgenössische Technische Hochschule (ETH) Zurich, Zurich 8093, Switzerland; Faculty of Science, University of Zurich, Zurich 8057, Switzerland
| | - Levi A Garraway
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Peter J Wild
- Institute of Surgical Pathology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Jean-Philippe Theurillat
- Institute of Oncology Research, Bellinzona 6500, Switzerland; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne 1011, Switzerland.
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
8
|
Protein– and Peptide–Drug Conjugates. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 98:1-55. [DOI: 10.1016/bs.apcsb.2014.11.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
9
|
Yewale C, Baradia D, Vhora I, Misra A. Proteins: emerging carrier for delivery of cancer therapeutics. Expert Opin Drug Deliv 2013; 10:1429-48. [DOI: 10.1517/17425247.2013.805200] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
10
|
Tehranian N, Sepehri H, Mehdipour P, Biramijamal F, Hossein-Nezhad A, Sarrafnejad A, Hajizadeh E. Combination effect of PectaSol and Doxorubicin on viability, cell cycle arrest and apoptosis in DU-145 and LNCaP prostate cancer cell lines. Cell Biol Int 2012; 36:601-10. [PMID: 22214228 DOI: 10.1042/cbi20110309] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The effect of PectaSol on Dox (Doxorubicin) cytotoxicity in terms of apoptosis and cell cycle changes in PCa (prostate cancer) cell lines (DU-145 and LNCaP) has been investigated. Combination of PectaSol and Dox resulted in a viability of 29.4 and 32.6% (P<0.001) in DU-145 and LNCaP cells. The IC₅₀ values decreased 1.5-fold and 1.3-fold in the DU-145 and LNCaP cells respectively. In the DU-145 cells, combination of PectaSol and Dox resulted in a reduction in p27 gene and protein expression (P<0.001). In LNCaP cells, this combination increased p53, p27 and Bcl-2 expression. Treatment with both drugs in DU-145 cells led to an increase in sub-G₁ arrest (54.6% compared with 12.2% in Dox). In LNCaP cells, combination of the drugs led to an increased in G₂/M arrest (61.7% compared with 53.6% in Dox). Based on these findings, progressive cytotoxicity effect of Dox and PectaSol together rapidly induce cell death in DU-145 through apoptosis and in LNCaP cells through cell cycle arrest (G₂/M arrest).
Collapse
Affiliation(s)
- Najmeh Tehranian
- Animal Biology Department, School of Biology, University College of Sciences, University of Tehran, PO Box 1415, Tehran, Islamic Republic of Iran
| | | | | | | | | | | | | |
Collapse
|
11
|
Ak G, Yurt Lambrecht F, Sanlier SH. Radiolabeling of folate targeted multifunctional conjugate with Technetium-99m and biodistribution studies in rats. J Drug Target 2012; 20:509-14. [DOI: 10.3109/1061186x.2012.686038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
12
|
Zosuquidar and an albumin-binding prodrug of zosuquidar reverse multidrug resistance in breast cancer cells of doxorubicin and an albumin-binding prodrug of doxorubicin. Breast Cancer Res Treat 2012; 134:117-29. [DOI: 10.1007/s10549-011-1937-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 12/19/2011] [Indexed: 11/26/2022]
|
13
|
Severino P, Santana MHA, Malmonge SM, Souto EB. Polímeros usados como sistemas de transporte de princípios ativos. POLIMEROS 2011. [DOI: 10.1590/s0104-14282011005000061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Os diferentes sistemas de transporte têm evidenciado potencial terapêutico para uma grande variedade de princípios ativos, satisfazendo vários requisitos, como a prevenção da sua eliminação rápida do organismo, a redução da sua toxicidade sistêmica, a estabilização e a otimização do seu metabolismo, e o direcionamento específico ao local alvo e os mecanismos de defesa. No entanto, têm sido reconhecidos vários outros desafios associados à liberação específica do princípio ativo ao local alvo, pelo que, para ultrapassar os obstáculos químicos e biológicos, a seleção do polímero utilizado para a preparação do sistema de transporte é de importância crucial. O presente trabalho apresenta um relato sobre os principais polímeros naturais e sintéticos utilizados para a preparação de sistemas de transporte de princípios ativos in vivo.
Collapse
|
14
|
Fine D, Grattoni A, Zabre E, Hussein F, Ferrari M, Liu X. A low-voltage electrokinetic nanochannel drug delivery system. LAB ON A CHIP 2011; 11:2526-34. [PMID: 21677944 DOI: 10.1039/c1lc00001b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Recent work has elucidated the potential of important new therapeutic paradigms, including metronomic delivery and chronotherapy, in which the precise timing and location of therapeutic administration has a significant impact on efficacy and toxicity. New drug delivery architectures are needed to not only release drug continuously at precise rates, but also synchronize their release with circadian cycles. We present an actively controlled nanofluidic membrane that exploits electrophoresis to control the magnitude, duration, and timing of drug release. The membrane, produced using high precision silicon fabrication techniques, has platinum electrodes integrated at the inlet and outlet that allow both amplification and reversal of analyte delivery with low applied voltage (at or below 2 VDC). Device operation was demonstrated with solutions of both fluorescein isothiocyanate conjugated bovine serum albumin and lysozyme using fluorescence spectroscopy, fluorescence microscopy, and a lysozyme specific bio-assay and has been characterized for long-term molecular release and release reversibility. Through a combination of theoretical and experimental analysis, the relative contributions of electrophoresis and electroosmosis have been investigated. The membrane's clinically relevant electrophoretic release rate at 2 VDC exceeds the passive release by nearly one order of magnitude, demonstrating the potential to realize the therapeutic paradigm goal.
Collapse
Affiliation(s)
- Daniel Fine
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave, Houston, TX 77030, USA
| | | | | | | | | | | |
Collapse
|