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Rautela R, Srivastava N, Bisla A, Singh P, Kumar A, Ngou AA, Katiyar R, Ghosh SK, Bag S. Nano-depletion of morbid spermatozoa up-regulate Ca2+ channel, depolarization of membrane potential and fertility in buffalo. Cryobiology 2022; 109:20-29. [PMID: 36244426 DOI: 10.1016/j.cryobiol.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 01/15/2023]
Abstract
Despite recent advances in technique of spermatozoa cryopreservation, there are still ejaculates present that fail to meet strict quality standard; mainly due to detrimental effect of imbalance of free radicals. The omnipresence of dead/defective spermatozoa in ejaculates of eutherian species is a major source of excessive free radicals. Though sperm-selection techniques, as well as addition of antioxidants addressed the problem to a certain extent, the major source of free radicals in the semen remained, causing much damage. This study attempts to remove dead/damaged spermatozoa using negative fertility-marker. The effect is unraveled by Hypo-osmotic (HOS), and fluorescein-conjugated Pisum sativum agglutinin (FITC-PSA) assay, further confirmed by Ca2+-regulating mechanisms and depolarization of sperm membrane potential, reduction in concentration of free radicals and finally by in vitro fertility assay. The study involved functionalization of iron oxide nanoparticles (IONPs) with silane followed by bio-conjugation with anti-ubiquitin antibodies. The nano-purification of semen using anti-ubiquitin conjugated iron oxide nanoparticles (IONPs) (antibody concentrations 0.5, 1.0 and 2.0 μg/ml) was attempted. The efficiency of nano-purification was 18.1%-43.8% in the study. The results revealed greater (P ≤ 0.05) spermatozoa population with intact plasma membrane, acrosome integrity, high mitochondrial membrane potential and pattern-F (least intracellular Ca2+), evidence of low lipid peroxidation and higher total antioxidant capacity in nano-purified groups. More number of spermatozoa were bound to zona pellucida of matured oocytes from nano-depleted than non-depleted group. The findings demonstrate antibody concentration of 1.0 μg/ml bio-conjugated with IONPs as most efficient in enriching the ejaculate with functional spermatozoa with the highest percentage of zona binding.
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Affiliation(s)
- Rupali Rautela
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India.
| | - Neeraj Srivastava
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India.
| | - Amarjeet Bisla
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Praveen Singh
- BEMI Section, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Abhishek Kumar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Athanas Alex Ngou
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Rahul Katiyar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Subrata Kumar Ghosh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
| | - Sadhan Bag
- Division of Veterinary Physiology and Climatology, ICAR-Indian Veterinary Research Institute, Bareilly, 243122, Uttar Pradesh, India
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Bisla A, Honparkhe M, Srivastava N. A review on applications and toxicities of metallic nanoparticles in mammalian semen biology. Andrologia 2022; 54:e14589. [DOI: 10.1111/and.14589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 08/14/2022] [Accepted: 08/29/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Amarjeet Bisla
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science Guru Angad Dev Veterinary and Animal Sciences University Ludhiana India
| | - Mrigank Honparkhe
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science Guru Angad Dev Veterinary and Animal Sciences University Ludhiana India
| | - Neeraj Srivastava
- Germ Plasm Centre, Division of Animal Reproduction ICAR‐Indian Veterinary Research Institute Bareilly India
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Vašíček J, Baláži A, Svoradová A, Vozaf J, Dujíčková L, Makarevich AV, Bauer M, Chrenek P. Comprehensive Flow-Cytometric Quality Assessment of Ram Sperm Intended for Gene Banking Using Standard and Novel Fertility Biomarkers. Int J Mol Sci 2022; 23:ijms23115920. [PMID: 35682598 PMCID: PMC9180808 DOI: 10.3390/ijms23115920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 11/29/2022] Open
Abstract
Flow cytometry becomes a common method for analysis of spermatozoa quality. Standard sperm characteristics such as viability, acrosome and chromatin integrity, oxidative damage (ROS) etc. can be easily assess in any animal semen samples. Moreover, several fertility-related markers were observed in humans and some other mammals. However, these fertility biomarkers have not been previously studied in ram. The aim of this study was to optimize the flow-cytometric analysis of these standard and novel markers in ram semen. Ram semen samples from Slovak native sheep breeds were analyzed using CASA system for motility and concentration and were subsequently stained with several fluorescent dyes or specific antibodies to evaluate sperm viability (SYBR-14), apoptosis (Annexin V, YO-PRO-1, FLICA, Caspases 3/7), acrosome status (PNA, LCA, GAPDHS), capacitation (merocyanine 540, FLUO-4 AM), mitochondrial activity (MitoTracker Green, rhodamine 123, JC-1), ROS (CM-H2DCFDA, DHE, MitoSOX Red, BODIPY), chromatin (acridine orange), leukocyte content, ubiquitination and aggresome formation, and overexpression of negative biomarkers (MKRN1, SPTRX-3, PAWP, H3K4me2). Analyzed semen samples were divided into two groups according to viability as indicators of semen quality: Group 1 (viability over 60%) and Group 2 (viability under 60%). Significant (p < 0.05) differences were found between these groups in sperm motility and concentration, apoptosis, acrosome integrity (only PNA), mitochondrial activity, ROS production (except for DHE), leukocyte and aggresome content, and high PAWP expression. In conclusion, several standard and novel fluorescent probes have been confirmed to be suitable for multiplex ram semen analysis by flow cytometry as well as several antibodies have been validated for the specific detection of ubiquitin, PAWP and H3K4me2 in ram spermatozoa.
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Affiliation(s)
- Jaromír Vašíček
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
- Correspondence: (J.V.); (P.C.); Tel.: +421-37-654-6600 (J.V.); +421-37-641-4274 (P.C.)
| | - Andrej Baláži
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
| | - Andrea Svoradová
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
- Department of Morphology, Physiology and Animal Genetics, Faculty of Agri Sciences, Mendel University in Brno, Zemědělská 1/1665, 613 00 Brno, Czech Republic
| | - Jakub Vozaf
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Linda Dujíčková
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
- Department of Botany and Genetics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nábrežie Mládeže 91, 949 74 Nitra, Slovakia
| | - Alexander V. Makarevich
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
| | - Miroslav Bauer
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
- Department of Botany and Genetics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nábrežie Mládeže 91, 949 74 Nitra, Slovakia
| | - Peter Chrenek
- Institute of Farm Animal Genetics and Reproduction, NPPC, Research Institute for Animal Production Nitra, Hlohovecká 2, 951 41 Lužianky, Slovakia; (A.B.); (A.S.); (L.D.); (A.V.M.); (M.B.)
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
- Correspondence: (J.V.); (P.C.); Tel.: +421-37-654-6600 (J.V.); +421-37-641-4274 (P.C.)
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Moradi M, Hajarian H, Karamishabankareh H, Soltani L, Soleymani B. Recovery of sperms bearing X chromosomes with different concentrations of magnetic nanoparticles in ram. Reprod Domest Anim 2020; 56:263-269. [PMID: 32813917 DOI: 10.1111/rda.13807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 07/28/2020] [Accepted: 08/15/2020] [Indexed: 11/29/2022]
Abstract
Pre-conceptual sex selection is still a highly debatable process whereby X and Y chromosome bearing spermatozoa are isolated before oocyte fertilization. Recently, magnetic nanoparticles (MNP) have been used to determine X and Y chromosomes bearing spermatozoa as a result of searching for a cheap, highly efficient method using non-toxic materials. This study aimed to recover the sperm bearing X chromosomes in ram with different concentrations of MNP and then evaluate the success of this method using polymerase chain reaction (PCR). Ram sperms were divided into four groups, treated with 0 (control), 50, 100 and 200 μg/ml MNP, respectively. MNP was used to restore sperm cells bearing X chromosomes. Upon recovery, the PCR was performed to identify the X and Y sperms, Methyl ThiazoleTetrazolium (MTT), to assess MNP toxicity and sperm viability and acridine orange (AO) to evaluate sperm DNA integrity. The results of PCR revealed that the treatment of spermatozoa- bearing X chromosomes with 50 μg/ml MNP had the highest effects on the recovery of X sperm rather than the other concentrations of MNP. However, the concentrations of MNP did not have any toxic effects on spermatozoa, sperm viability and, DNA integrity, but the high concentration of MNP (200 μg/ml) significantly reduced DNA integrity. According to MTT and AO results, the concentrations of MNP used in this study had no toxic effects on spermatozoa and did not reduce the sperm viability and DNA integrity, except that 200 μg/ml MNP significantly reduced DNA integrity.
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Affiliation(s)
- Maryam Moradi
- Department of Animal Science, Faculty of Agricultural and Engineering Science, Razi University, Kermanshah, Iran
| | - Hadi Hajarian
- Department of Animal Science, Faculty of Agricultural and Engineering Science, Razi University, Kermanshah, Iran
| | - Hamed Karamishabankareh
- Department of Animal Science, Faculty of Agricultural and Engineering Science, Razi University, Kermanshah, Iran
| | - Leila Soltani
- Department of Animal Science, Faculty of Agricultural and Engineering Science, Razi University, Kermanshah, Iran
| | - Bijan Soleymani
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Science, Kermanshah, Iran
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Rateb SA. Purification of cryopreserved camel spermatozoa following protease-based semen liquefaction by lectin-functionalized DNA-defrag magnetic nanoparticles. Reprod Domest Anim 2020; 56:183-192. [PMID: 33170990 DOI: 10.1111/rda.13863] [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] [Received: 08/08/2020] [Accepted: 11/05/2020] [Indexed: 12/16/2022]
Abstract
Although incorporating proteases into sperm medium is considered the most effective procedure to eliminate camel semen viscosity, it drastically affects viability, morpho-functional properties and, hence, fertilization potential of spermatozoa. The present work aimed at evaluating adequacy of employing magnetic nanoparticles-based sperm purification technique for eluting impaired and apoptotic camel spermatozoa from cryopreserved semen doses following protease-based semen liquefaction. Thirty cryopreserved semen doses (50 x 106 sperm/straw) representing the following liquefaction treatments: control (untreated), 0.1 mg/ml papain or 5 U/ml bromelain were used (n = 10 straws per treatment). Immediately after thawing (38°C for 40 s), sperm concentration of each straw within treatment was readjusted to 15 x 106 sperm/mL by dilution in PBS (37°C). Sperm physical and cytological properties were then assessed (non-purified semen). Thereafter, each specimen was subjected to lectin-functionalized DNA-defrag magnetic nanoparticles sperm purification, and the same sperm traits were re-evaluated after undergoing purification (purified semen). Sperm DNA fragmentation level within each group, prior to and after magnetic nano-purification, was also determined by fluorescent imaging. The results showed a dramatic improvement (p < .05) in post-thaw motility (%), viability (%), normal sperm (%), intact acrosome (%) and HOST-reacted (%) spermatozoa in protease-liquefied semen following sperm magnetic nano-purification. Additionally, the highest (p < .05) DNA fragmentation level was recorded in all cryopreserved semen groups prior to purification, whereas the lowest (p < .05) was observed in the protease-treated specimens after magnetic nano-purification. These results indicate that protease-based semen liquefaction prior to cryopreservation in conjunction with magnetic nano-purification post-thawing holds potential for reducing the proportion of damaged and dead spermatozoa, hence improving camel sperm fertilization competence.
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Affiliation(s)
- Sherif A Rateb
- Animal and Poultry Production Division, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
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Chen Q, Sheng R, Wang P, Ouyang Q, Wang A, Ali S, Zareef M, Hassan MM. Ultra-sensitive detection of malathion residues using FRET-based upconversion fluorescence sensor in food. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118654. [PMID: 32659702 DOI: 10.1016/j.saa.2020.118654] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
Malathion is an organophosphorus pesticide which could remain in agricultural products and exert irreversible harmful effects on human health. Hence, strict monitoring of malathion contents is very significant. Here, a highly sensitive fluorescent aptasensor was developed for the determination of malathion, the system was based on a cationic polymer-mediated fluorescence 'turn-off'. In this system, malathion-specific aptamers were bound to cationic polymer through electrostatic interactions. To produce fluorescence resonance energy transfer (FRET), negatively charged upconversion fluorescent nanoparticles (UCNPs) and cationic-polymer encapsulated gold nanoparticles (GNPs) were combined. This combination resulted in fluorescence quenching, and the degree of quenching was correlated with the concentration of malathion. Under optimum conditions, the fluorescence intensities were observed to decrease linearly with the rising concentration of the malathion from 0.01 to 1 μM with a detection limit of 1.42 nM. Furthermore, the developed sensor possessed good selective recognition ability for malathion and was successfully used to detect malathion in adulterated tap water and matcha samples with high accuracy.
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Affiliation(s)
- Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Ren Sheng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Pingyue Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qin Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Ancheng Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Shujat Ali
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Muhammad Zareef
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Md Mehedi Hassan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
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Ajinkya N, Yu X, Kaithal P, Luo H, Somani P, Ramakrishna S. Magnetic Iron Oxide Nanoparticle (IONP) Synthesis to Applications: Present and Future. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4644. [PMID: 33080937 PMCID: PMC7603130 DOI: 10.3390/ma13204644] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 12/18/2022]
Abstract
Iron oxides are chemical compounds which have different polymorphic forms, including γ-Fe2O3 (maghemite), Fe3O4 (magnetite), and FeO (wustite). Among them, the most studied are γ-Fe2O3 and Fe3O4, as they possess extraordinary properties at the nanoscale (such as super paramagnetism, high specific surface area, biocompatible etc.), because at this size scale, the quantum effects affect matter behavior and optical, electrical and magnetic properties. Therefore, in the nanoscale, these materials become ideal for surface functionalization and modification in various applications such as separation techniques, magnetic sorting (cells and other biomolecules etc.), drug delivery, cancer hyperthermia, sensing etc., and also for increased surface area-to-volume ratio, which allows for excellent dispersibility in the solution form. The current methods used are partially and passively mixed reactants, and, thus, every reaction has a different proportion of all factors which causes further difficulties in reproducibility. Direct active and complete mixing and automated approaches could be solutions to this size- and shape-controlled synthesis, playing a key role in its exploitation for scientific or technological purposes. An ideal synthesis method should be able to allow reliable adjustment of parameters and control over the following: fluctuation in temperature; pH, stirring rate; particle distribution; size control; concentration; and control over nanoparticle shape and composition i.e., crystallinity, purity, and rapid screening. Iron oxide nanoparticle (IONP)-based available clinical applications are RNA/DNA extraction and detection of infectious bacteria and viruses. Such technologies are important at POC (point of care) diagnosis. IONPs can play a key role in these perspectives. Although there are various methods for synthesis of IONPs, one of the most crucial goals is to control size and properties with high reproducibility to accomplish successful applications. Using multiple characterization techniques to identify and confirm the oxide phase of iron can provide better characterization capability. It is very important to understand the in-depth IONP formation mechanism, enabling better control over parameters and overall reaction and, by extension, properties of IONPs. This work provides an in-depth overview of different properties, synthesis methods, and mechanisms of iron oxide nanoparticles (IONPs) formation, and the diverse range of their applications. Different characterization factors and strategies to confirm phase purity in the IONP synthesis field are reviewed. First, properties of IONPs and various synthesis routes with their merits and demerits are described. We also describe different synthesis strategies and formation mechanisms for IONPs such as for: wustite (FeO), hematite (α-Fe2O3), maghemite (ɤ-Fe2O3) and magnetite (Fe3O4). We also describe characterization of these nanoparticles and various applications in detail. In conclusion, we present a detailed overview on the properties, size-controlled synthesis, formation mechanisms and applications of IONPs.
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Affiliation(s)
- Nene Ajinkya
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Xuefeng Yu
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Poonam Kaithal
- Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, SHUATS, Allahabad 211007, India;
| | - Hongrong Luo
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Prakash Somani
- Center for Grand Challenges and Green Technologies, Applied Science Innovations Pvt. Ltd., Pune 411041, India;
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117576, Singapore;
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Akerman JP, Hayon S, Coward RM. Sperm Extraction in Obstructive Azoospermia: What's Next? Urol Clin North Am 2020; 47:147-155. [PMID: 32272986 DOI: 10.1016/j.ucl.2019.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
For men with obstructive azoospermia, several surgical sperm retrieval techniques can facilitate conception with assisted reproductive technology. The evolution of both percutaneous and open approaches to sperm retrieval has been affected by technological innovations, including the surgical microscope, in vitro fertilization, and intracytoplasmic sperm injection. Further modifications to these procedures are designed to minimize patient morbidity and increase the quality and quantity of sperm samples. Innovative technologies promise to further ameliorate outcomes by selecting the highest quality sperm. Although various approaches to surgical sperm retrieval are now well established, several advancements in sperm selection and optimization are being developed.
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Affiliation(s)
- Jason P Akerman
- Department of Urology, University of North Carolina, 2113 Physician's Office Building, CB#7235, Chapel Hill, NC 27599-7235, USA.
| | - Solomon Hayon
- Department of Urology, University of North Carolina, 2113 Physician's Office Building, CB#7235, Chapel Hill, NC 27599-7235, USA
| | - Robert Matthew Coward
- Department of Urology, University of North Carolina, 2113 Physician's Office Building, CB#7235, Chapel Hill, NC 27599-7235, USA; UNC Fertility, 7920 ACC Blvd #300, Raleigh, North Carolina 27617, USA
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9
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Durfey CL, Swistek SE, Liao SF, Crenshaw MA, Clemente HJ, Thirumalai RVKG, Steadman CS, Ryan PL, Willard ST, Feugang JM. Nanotechnology-based approach for safer enrichment of semen with best spermatozoa. J Anim Sci Biotechnol 2019; 10:14. [PMID: 30774950 PMCID: PMC6368687 DOI: 10.1186/s40104-018-0307-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 12/18/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Advances in nanotechnology have permitted molecular-based targeting of cells through safe and biocompatible magnetic nanoparticles (MNP). Their use to detect and remove damaged spermatozoa from semen doses could be of great interest. Here, MNP were synthesized and tested for their ability to target apoptotic (annexin V) and acrosome-reacted (lectin) boar spermatozoa, for high-throughout retrieval in a magnetic field (nanoselection). The potential impacts of nanoselection on sperm functions and performance of offspring sired by sperm subjected to nanoselection were determined. Fresh harvested and extended boar semen was mixed with various amounts (0, 87.5, and 175 μg) of MNP-conjugates (Annexin V-MNP or Lectin-MNP) and incubated (10 to 15 min) for 37 °C in Exp. 1. In Exp. 2, extended semen was mixed with optimal concentrations of MNP-conjugates and incubated (0, 30, 90, or 120 min). In Exp. 3, the synergistic effects of both MNP-conjugates (87.5 μg - 30 min) on spermatozoa was evaluated, followed by sperm fertility assessments through pregnancy of inseminated gilts and performance of neonatal offspring. Sperm motion, viability, and morphology characteristics were evaluated in all experiments. RESULTS Transmission electron microscopy, atomic force microscopy, and hyperspectral imaging techniques were used to confirm attachment of MNP-conjugates to damaged spermatozoa. The motility of nanoselected spermatozoa was improved (P < 0.05). The viability of boar sperm, as assessed by the abundance of reactive oxygen species and the integrity of the acrosome, plasma membrane, and mitochondrial membrane was not different between nanoselected and control spermatozoa. The fertility of gilts inseminated with control or nanoselected spermatozoa, as well as growth and health of their offspring were not different between (P > 0.05). CONCLUSIONS The findings revealed the benefit of magnetic nanoselection for high-throughput targeting of damaged sperm, for removal and rapid and effortless enrichment of semen doses with highly motile, viable, and fertile spermatozoa. Therefore, magnetic nanoselection for removal of abnormal spermatozoa from semen is a promising tool for improving fertility of males, particularly during periods, such as heat stress during the summer months.
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Affiliation(s)
- Casey L. Durfey
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
| | - Sabrina E. Swistek
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State, MS USA
| | - Shengfa F. Liao
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
| | - Mark A. Crenshaw
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
| | | | - Rooban V. K. G. Thirumalai
- Institute of Imaging and Analytic Technology (I2AT), Mississippi State University, Mississippi State, MS USA
| | - Christy S. Steadman
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
| | - Peter L. Ryan
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
- Department of Pathobiology and Population Medicine Biochemistry, Mississippi State University, Mississippi State, MS USA
| | - Scott T. Willard
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State, MS USA
| | - Jean M. Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS USA
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Live births from artificial insemination of microfluidic-sorted bovine spermatozoa characterized by trajectories correlated with fertility. Proc Natl Acad Sci U S A 2018; 115:E3087-E3096. [PMID: 29555773 PMCID: PMC5889641 DOI: 10.1073/pnas.1717974115] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Selection of functional spermatozoa plays a crucial role in assisted reproduction. Passage of spermatozoa through the female reproductive tract requires progressive motility to locate the oocyte. This preferential ability to reach the fertilization site confers fertility advantage to spermatozoa. Current routine sperm selection techniques are inadequate and fail to provide conclusive evidence on the sperm characteristics that may affect fertilization. We therefore developed a selection strategy for functional and progressively motile bovine spermatozoa with high DNA integrity based on the ability to cross laminar flow streamlines in a diffuser-type microfluidic sperm sorter (DMSS). The fluid dynamics, with respect to microchannel geometry and design, are relevant in the propulsion of spermatozoa and, consequently, ultrahigh-throughput sorting. Sorted spermatozoa were assessed for kinematic parameters, acrosome reaction, mitochondrial membrane potential, and DNA integrity. Kinematic and trajectory patterns were used to identify fertility-related subpopulations: the rapid, straighter, progressive, nonsinuous pattern (PN) and the transitional, sinuous pattern (TS). In contrast to the conventional notion that the fertilizing spermatozoon is always vigorously motile and more linear, our results demonstrate that sinuous patterns are associated with fertility and correspond to truly functional spermatozoa as supported by more live births produced from predominant TS than PN subpopulation in the inseminate. Our findings ascertain the true practical application significance of microfluidic sorting of functional sperm characterized by sinuous trajectories that can serve as a behavioral sperm phenotype marker for fertility potential. More broadly, we foresee the clinical application of this sorting technology to assisted reproduction in humans.
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Taylor JF, Schnabel RD, Sutovsky P. Identification of genomic variants causing sperm abnormalities and reduced male fertility. Anim Reprod Sci 2018; 194:57-62. [PMID: 29454799 PMCID: PMC6503949 DOI: 10.1016/j.anireprosci.2018.02.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 12/18/2022]
Abstract
Whole genome sequencing has identified millions of bovine genetic variants; however, there is currently little understanding about which variants affect male fertility. It is imperative that we begin to link detrimental genetic variants to sperm phenotypes via the analysis of semen samples and measurement of fertility for bulls with alternate genotypes. Artificial insemination (AI) bulls provide a useful model system because of extensive fertility records, measured as sire conception rates (SCR). Genetic variants with moderate to large effects on fertility can be identified by sequencing the genomes of fertile and subfertile or infertile sires identified with high or low SCR as adult AI bulls or yearling bulls that failed Breeding Soundness Evaluation. Variants enriched in frequency in the sequences of subfertile/infertile bulls, particularly those likely to result in the loss of protein function or predicted to be severely deleterious to genes involved in sperm protein structure and function, semen quality or sperm morphology can be designed onto genotyping assays for validation of their effects on fertility. High throughput conventional and image-based flow cytometry, proteomics and cell imaging can be used to establish the functional effects of variants on sperm phenotypes. Integrating the genetic, fertility and sperm phenotype data will accelerate biomarker discovery and validation, improve routine semen testing in bull studs and identify new targets for cost-efficient AI dose optimization approaches such as semen nanopurification. This will maximize semen output from genetically superior sires and will increase the fertility of cattle. Better understanding of the relationships between male genotype and sperm phenotype may also yield new diagnostic tools and treatments for human male and idiopathic infertility.
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Affiliation(s)
- Jeremy F Taylor
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA.
| | - Robert D Schnabel
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA
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Durfey CL, Burnett DD, Liao SF, Steadman CS, Crenshaw MA, Clemente HJ, Willard ST, Ryan PL, Feugang JM. Nanotechnology-based selection of boar spermatozoa: growth development and health assessments of produced offspring. Livest Sci 2017. [DOI: 10.1016/j.livsci.2017.09.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sutovsky P. New Approaches to Boar Semen Evaluation, Processing and Improvement. Reprod Domest Anim 2016; 50 Suppl 2:11-9. [PMID: 26174914 DOI: 10.1111/rda.12554] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 05/09/2015] [Indexed: 11/27/2022]
Abstract
The improvement of boar reproductive performance may be the next frontier in reproductive management of swine herd in Unites States, facilitated by better understanding of boar sperm function and by the introduction of new advanced instrumentation in the andrology field. Objective single ejaculate evaluation and individual boar fertility prediction may be possible by introducing automated flow cytometric semen analysis with vital stains (e.g. acrosomal integrity and mito-potential), DNA fragmentation analysis and biomarkers (ubiquitin, PAWP, ALOX15, aggresome) associated with normal or defective sperm phenotypes. Measurement of sperm-produced reactive oxygen species (ROS) is a helpful indicator of normal semen sample. Semen ROS levels could be managed by the addition of ROS-scavenging antioxidants. Alternative energy regeneration substrates and sperm stimulants such as inorganic pyrophosphate and caffeine could increase sperm lifespan in extended semen and within the female reproductive system. Such technology could be combined with timed sperm release in the female reproductive system after artificial insemination. Sperm phenotype analysis by the image-based flow cytometry will go hand in hand with the advancement of swine genomics, linking aberrant sperm phenotype to the fertility influencing gene polymorphisms. Finally, poor-quality ejaculates could be rescued and acceptable ejaculates improved by semen purification methods such as the nanoparticle-based semen purification and magnetic-activated sperm sorting. Altogether, these scientific and technological advances could benefit swine industry, provided that the challenges of new technology adoption, dissemination and cost reduction are met.
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Affiliation(s)
- P Sutovsky
- Division of Animal Science, Departments of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, USA
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Odhiambo JF, DeJarnette J, Geary TW, Kennedy CE, Suarez SS, Sutovsky M, Sutovsky P. Increased Conception Rates in Beef Cattle Inseminated with Nanopurified Bull Semen1. Biol Reprod 2014; 91:97. [DOI: 10.1095/biolreprod.114.121897] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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