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Zheng Y, Yin H, Zhou C, Zhou W, Huan Z, Ma W. A Hand-Held Platform for Boar Sperm Viability Diagnosis Based on Smartphone. BIOSENSORS 2023; 13:978. [PMID: 37998153 PMCID: PMC10669104 DOI: 10.3390/bios13110978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023]
Abstract
The swine fever virus seriously affects pork production, and to improve pork production, pig breeding efficiency needs to be improved, and the detection of boar sperm activity is an important part of the pig breeding process. Traditional laboratory testing methods rely on bulky testing equipment, such as phase-contrast microscopes, high-speed cameras, and computers, which limit the testing scenarios. To solve the above problems, in this paper, a microfluidic chip was designed to simulate sperm in the oviduct with a channel thickness of 20 um, which can only accommodate sperm for two-dimensional movement. A miniature microscope system which can be used in combination with a smartphone is designed that is only the size of the palm of the hand and has a magnification of about 38 times. An intelligent diagnostic app was developed using Java language, which can automatically identify and track boar sperm with a recognition rate of 96.08% and an average tracking rate of 86%. The results show that the proposed smartphone-based hand-held platform can effectively replace the traditional microscope compound computer to diagnose sperm activity. In contrast, the platform is smaller, easier to use and is not limited by the usage scenarios.
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Affiliation(s)
- Yunhong Zheng
- School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, China; (Y.Z.)
- Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control, Xiamen 361024, China
| | - Hang Yin
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chengxian Zhou
- School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, China; (Y.Z.)
- Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control, Xiamen 361024, China
| | - Wei Zhou
- School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, China; (Y.Z.)
- Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control, Xiamen 361024, China
| | - Zhijie Huan
- School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, China; (Y.Z.)
- Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control, Xiamen 361024, China
| | - Weicheng Ma
- School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, China; (Y.Z.)
- Xiamen Key Laboratory of Frontier Electric Power Equipment and Intelligent Control, Xiamen 361024, China
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2
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Guo Y, Zhang X, Zhang H, Liu Y, Shi J, Meng H, Chen X, Lan Q, Zhu B. Application of microfluidic technologies in forensic analysis. Electrophoresis 2023; 44:1725-1743. [PMID: 37857551 DOI: 10.1002/elps.202200268] [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: 11/07/2022] [Revised: 08/17/2023] [Accepted: 08/28/2023] [Indexed: 10/21/2023]
Abstract
The application of microfluidic technology in forensic medicine has steadily expanded over the last two decades due to the favorable features of low cost, rapidity, high throughput, user-friendliness, contamination-free, and minimum sample and reagent consumption. In this context, bibliometric methods were adopted to visualize the literature information contained in the Science Citation Index Expanded from 1989 to 2022, focusing on the co-occurrence analysis of forensic and microfluidic topics. A deep interpretation of the literature was conducted based on co-occurrence results, in which microfluidic technologies and their applications in forensic medicine, particularly forensic genetics, were elaborated. The purpose of this review is to provide an impartial evaluation of the utilization of microfluidic technology in forensic medicine. Additionally, the challenges and future trends of implementing microfluidic technology in forensic genetics are also addressed.
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Affiliation(s)
- Yuxin Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Xingru Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, P. R. China
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Haoqing Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Yaoshun Liu
- Ankang Hospital of Traditional Chinese Medicine, Ankang, Shaanxi, P. R. China
| | - Jianfeng Shi
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Haotian Meng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Xin Chen
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Qiong Lan
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, P. R. China
- Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Bofeng Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, P. R. China
- Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
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3
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Erdem Ö, Eş I, Saylan Y, Atabay M, Gungen MA, Ölmez K, Denizli A, Inci F. In situ synthesis and dynamic simulation of molecularly imprinted polymeric nanoparticles on a micro-reactor system. Nat Commun 2023; 14:4840. [PMID: 37563147 PMCID: PMC10415298 DOI: 10.1038/s41467-023-40413-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 07/26/2023] [Indexed: 08/12/2023] Open
Abstract
Current practices in synthesizing molecularly imprinted polymers face challenges-lengthy process, low-productivity, the need for expensive and sophisticated equipment, and they cannot be controlled in situ synthesis. Herein, we present a micro-reactor for in situ and continuously synthesizing trillions of molecularly imprinted polymeric nanoparticles that contain molecular fingerprints of bovine serum albumin in a short period of time (5-30 min). Initially, we performed COMSOL simulation to analyze mixing efficiency with altering flow rates, and experimentally validated the platform for synthesizing nanoparticles with sizes ranging from 52-106 nm. Molecular interactions between monomers and protein were also examined by molecular docking and dynamics simulations. Afterwards, we benchmarked the micro-reactor parameters through dispersity and concentration of molecularly imprinted polymers using principal component analysis. Sensing assets of molecularly imprinted polymers were examined on a metamaterial sensor, resulting in 81% of precision with high selectivity (4.5 times), and three cycles of consecutive use. Overall, our micro-reactor stood out for its high productivity (48-288 times improvement in assay-time and 2 times improvement in reagent volume), enabling to produce 1.4-1.5 times more MIPs at one-single step, and continuous production compared to conventional strategy.
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Affiliation(s)
- Özgecan Erdem
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
| | - Ismail Eş
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
| | - Yeşeren Saylan
- Department of Chemistry, Hacettepe University, 06800, Ankara, Turkey
| | - Maryam Atabay
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
- Department of Chemistry, Hacettepe University, 06800, Ankara, Turkey
| | - Murat Alp Gungen
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey
| | - Kadriye Ölmez
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, 06800, Ankara, Turkey
| | - Fatih Inci
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey.
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey.
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Abstract
Acute kidney injury (AKI) is one of the most prevalent and complex clinical syndromes with high morbidity and mortality. The traditional diagnosis parameters are insufficient regarding specificity and sensitivity, and therefore, novel biomarkers and their facile and rapid applications are being sought to improve the diagnostic procedures. The biosensors, which are employed on the basis of electrochemistry, plasmonics, molecular probes, and nanoparticles, are the prominent ways of developing point-of-care devices, along with the mutual integration of efficient surface chemistry strategies. In this manner, biosensing platforms hold pivotal significance in detecting and quantifying novel AKI biomarkers to improve diagnostic interventions, potentially accelerating clinical management to control the injury in a timely manner. In this review, novel diagnostic platforms and their manufacturing processes are presented comprehensively. Furthermore, strategies to boost their effectiveness are also indicated with several applications. To maximize these efforts, we also review various biosensing approaches with a number of biorecognition elements (e.g., antibodies, aptamers, and molecular imprinting molecules), as well as benchmark their features such as robustness, stability, and specificity of these platforms.
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Affiliation(s)
- Esma Derin
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey
| | - Fatih Inci
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey
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5
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Erdem Ö, Eş I, Saylan Y, Inci F. Unifying the Efforts of Medicine, Chemistry, and Engineering in Biosensing Technologies to Tackle the Challenges of the COVID-19 Pandemic. Anal Chem 2022; 94:3-25. [PMID: 34874149 DOI: 10.1021/acs.analchem.1c04454] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Özgecan Erdem
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
| | - Ismail Eş
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
| | - Yeşeren Saylan
- Department of Chemistry, Hacettepe University, 06800 Ankara, Turkey
| | - Fatih Inci
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
- Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey
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Pradhan A, Lahare P, Sinha P, Singh N, Gupta B, Kuca K, Ghosh KK, Krejcar O. Biosensors as Nano-Analytical Tools for COVID-19 Detection. SENSORS (BASEL, SWITZERLAND) 2021; 21:7823. [PMID: 34883826 PMCID: PMC8659776 DOI: 10.3390/s21237823] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022]
Abstract
Selective, sensitive and affordable techniques to detect disease and underlying health issues have been developed recently. Biosensors as nanoanalytical tools have taken a front seat in this context. Nanotechnology-enabled progress in the health sector has aided in disease and pandemic management at a very early stage efficiently. This report reflects the state-of-the-art of nanobiosensor-based virus detection technology in terms of their detection methods, targets, limits of detection, range, sensitivity, assay time, etc. The article effectively summarizes the challenges with traditional technologies and newly emerging biosensors, including the nanotechnology-based detection kit for COVID-19; optically enhanced technology; and electrochemical, smart and wearable enabled nanobiosensors. The less explored but crucial piezoelectric nanobiosensor and the reverse transcription-loop mediated isothermal amplification (RT-LAMP)-based biosensor are also discussed here. The article could be of significance to researchers and doctors dedicated to developing potent, versatile biosensors for the rapid identification of COVID-19. This kind of report is needed for selecting suitable treatments and to avert epidemics.
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Affiliation(s)
- Anchal Pradhan
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Preeti Lahare
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Priyank Sinha
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Namrata Singh
- Ramrao Adik Institute of Technology, DY Patil University, Nerul, Navi Mumbai 400706, India
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
| | - Bhanushree Gupta
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital, Sokolska 581, 50005 Hradec Kralove, Czech Republic
| | - Kallol K. Ghosh
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Ondrej Krejcar
- Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic;
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7
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Abstract
Sperm selection in the female reproductive tract (FRT) is sophisticated. Only about 1,000 sperm out of millions in an ejaculate reach the fallopian tube and thus have a chance of fertilizing an oocyte. In assisted reproduction techniques, sperm are usually selected using their density or motility, characteristics that do not reflect their fertilization competence and, therefore, might result in failure to fertilize the oocyte. Although sperm processing in in vitro fertilization (IVF) and intrauterine insemination (IUI) bypasses many of the selection processes in the FRT, selection by the cumulus mass and the zona pellucida remain intact. By contrast, the direct injection of a sperm into an oocyte in intracytoplasmic sperm injection (ICSI) bypasses all natural selection barriers and, therefore, increases the risk of transferring paternal defects such as fragmented DNA and genomic abnormalities in sperm to the resulting child. Research into surrogate markers of fertilization potential and into simulating the natural sperm selection processes has progressed. However, methods of sperm isolation - such as hyaluronic acid-based selection and microfluidic isolation based on sperm tactic responses - use only one or two parameters and are not comparable with the multistep sperm selection processes naturally occurring within the FRT. Fertilization-competent sperm require a panel of molecules, including zona pellucida-binding proteins and ion channel proteins, that enable them to progress through the FRT to achieve fertilization. The optimal artificial sperm selection method will, therefore, probably need to use a multiparameter tool that incorporates the molecular signature of sperm with high fertilization potential, and their responses to external cues, within a microfluidic system that can replicate the physiological processes of the FRT in vitro.
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8
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Erdem Ö, Eş I, Akceoglu GA, Saylan Y, Inci F. Recent Advances in Microneedle-Based Sensors for Sampling, Diagnosis and Monitoring of Chronic Diseases. BIOSENSORS 2021; 11:296. [PMID: 34562886 PMCID: PMC8470661 DOI: 10.3390/bios11090296] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 08/20/2021] [Indexed: 12/14/2022]
Abstract
Chronic diseases (CDs) are noncommunicable illnesses with long-term symptoms accounting for ~70% of all deaths worldwide. For the diagnosis and prognosis of CDs, accurate biomarker detection is essential. Currently, the detection of CD-associated biomarkers is employed through complex platforms with certain limitations in their applicability and performance. There is hence unmet need to present innovative strategies that are applicable to the point-of-care (PoC) settings, and also, provide the precise detection of biomarkers. On the other hand, especially at PoC settings, microneedle (MN) technology, which comprises micron-size needles arranged on a miniature patch, has risen as a revolutionary approach in biosensing strategies, opening novel horizons to improve the existing PoC devices. Various MN-based platforms have been manufactured for distinctive purposes employing several techniques and materials. The development of MN-based biosensors for real-time monitoring of CD-associated biomarkers has garnered huge attention in recent years. Herein, we summarize basic concepts of MNs, including microfabrication techniques, design parameters, and their mechanism of action as a biosensing platform for CD diagnosis. Moreover, recent advances in the use of MNs for CD diagnosis are introduced and finally relevant clinical trials carried out using MNs as biosensing devices are highlighted. This review aims to address the potential use of MNs in CD diagnosis.
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Affiliation(s)
- Özgecan Erdem
- UNAM—National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey; (Ö.E.); (I.E.); (G.A.A.)
| | - Ismail Eş
- UNAM—National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey; (Ö.E.); (I.E.); (G.A.A.)
| | - Garbis Atam Akceoglu
- UNAM—National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey; (Ö.E.); (I.E.); (G.A.A.)
| | - Yeşeren Saylan
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey;
| | - Fatih Inci
- UNAM—National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey; (Ö.E.); (I.E.); (G.A.A.)
- Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
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9
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Shirejini SZ, Inci F. The Yin and Yang of exosome isolation methods: conventional practice, microfluidics, and commercial kits. Biotechnol Adv 2021; 54:107814. [PMID: 34389465 DOI: 10.1016/j.biotechadv.2021.107814] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 08/08/2021] [Accepted: 08/08/2021] [Indexed: 12/18/2022]
Abstract
Exosomes are a subset of extracellular vesicles released from various cells, and they can be found in different bodily fluids. Exosomes are used as biomarkers to diagnose many diseases and to monitor therapy efficiency as they represent the status and origin of the cell, which they are released from. Considering that they co-exist in bodily fluids with other types of particles, their isolation still remains challenging since conventional separation methods are time-consuming, user-dependent, and result in low isolation yield. This review summarizes the conventional strategies and microfluidic-based methods for exosome isolation along with their strengths and limitations. Microfluidic devices emerge as a promising approach to overcome the limitations of the conventional methods due to their inherent characteristics, such as the need for minute sample volume and rapid operation, in order to isolate exosomes with a high yield and a high purity in a short amount of time, which make them unprecedented tools for molecular biology and clinical applications. This review elaborates on the existing microfluidic-based exosome isolation methods and denotes their benefits and drawbacks. Herein, we also introduce various commercially available platforms and kits for exosome isolation along with their working principles.
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Affiliation(s)
- Saeedreza Zeibi Shirejini
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey; Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey
| | - Fatih Inci
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey; Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey.
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10
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Wang Y, Zhao W, Mei S, Chen P, Leung TY, Lee CL, Yeung WSB, Ou JP, Liang X, Chiu PCN. Identification of Sialyl-Lewis(x)-Interacting Protein on Human Spermatozoa. Front Cell Dev Biol 2021; 9:700396. [PMID: 34354992 PMCID: PMC8329450 DOI: 10.3389/fcell.2021.700396] [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: 04/26/2021] [Accepted: 06/28/2021] [Indexed: 01/12/2023] Open
Abstract
Capacitated spermatozoa initiate fertilization by binding to the zona pellucida (ZP). Defective spermatozoa-ZP binding causes infertility. The sialyl-Lewis(x) (SLeX) sequence is the most abundant terminal sequence on the glycans of human ZP glycoproteins involving in spermatozoa-ZP binding. This study aimed to identify and characterize the SLeX-binding proteins on human spermatozoa. By using affinity chromatography followed by mass spectrometric analysis, chromosome 1 open reading frame 56 (C1orf56) was identified to be a SLeX-binding protein of capacitated spermatozoa. The acrosomal region of spermatozoa possessed C1orf56 immunoreactive signals with intensities that increased after capacitation indicating translocation of C1orf56 to the cell surface during capacitation. Treatment with antibody against C1orf56 inhibited spermatozoa-ZP binding and ZP-induced acrosome reaction. Purified C1orf56 from capacitated spermatozoa bound to human ZP. A pilot clinical study was conducted and found no association between the percentage of capacitated spermatozoa with C1orf56 expression and in vitro fertilization (IVF) rate in assisted reproduction treatment. However, the percentage of C1orf56 positive spermatozoa in the acrosome-reacted population was significantly (P < 0.05) lower in cycles with a fertilization rate < 60% when compared to those with a higher fertilization rate, suggesting that C1orf56 may have functions after ZP-binding and acrosome reaction. A larger clinical trial is needed to determine the possible use of sperm C1orf56 content for the prediction of fertilization potential of sperm samples.
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Affiliation(s)
- Ying Wang
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Weie Zhao
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Si Mei
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Department of Physiology, Medical College, Hunan University of Chinese Medicine, Changsha, China
| | - Panyu Chen
- The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tsz-Ying Leung
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Cheuk-Lun Lee
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - William S B Yeung
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jian-Ping Ou
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Liang
- The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Philip C N Chiu
- Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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