1
|
Yamada M, Yoshihara N. Anhydrous proton conductor consisting of protamine-monododecyl phosphate composite with self-assembled structure. RSC Adv 2023; 13:34877-34883. [PMID: 38035249 PMCID: PMC10687518 DOI: 10.1039/d3ra07191j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 11/23/2023] [Indexed: 12/02/2023] Open
Abstract
We prepared a protamine-monododecyl phosphate composite by mixing protamine (P) and a monododecyl phosphate (MDP). This P-MDP composite formed an acid-base complex by the electrostatic interaction between cationic protamine and the negatively charged phosphate group. Additionally, according to the X-ray diffraction (XRD) measurements, the composite formed a self-assembled lamellar structure with an interaction between the long alkyl chains of MDP. As a result, the P-MDP composite showed the proton conductivity of 9.5 × 10-4 S cm-1 at 120-130 °C under anhydrous conditions. Furthermore, the activation energy of the proton conduction of the P-MDP composite was approximately 0.18 eV. These results suggested that the proton conduction of the P-MDP composite was based on an anhydrous proton conductive mechanism. In contrast, the anhydrous proton conduction of the P-methanediphosphonic acid (MP) composite, which did not form the self-assembled lamellar structure, was ca. 3 × 10-5 S cm-1 at 120-130 °C and this value was one order of magnitude lower than that of the P-MDP composite. Therefore, the two-dimensional self-assembled proton conductive pathway of the P-MDP composite plays a role in the anhydrous proton conduction.
Collapse
Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science, Okayama University of Science Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Naoaki Yoshihara
- Department of Chemistry, Faculty of Science, Okayama University of Science Ridaicho, Kita-ku Okayama 700-0005 Japan
| |
Collapse
|
2
|
Chhetri KB, Jang YH, Lansac Y, Maiti PK. DNA groove preference shift upon phosphorylation of a protamine-like cationic peptide. Phys Chem Chem Phys 2023; 25:31335-31345. [PMID: 37960891 DOI: 10.1039/d3cp03803c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Protamines, arginine-rich DNA-binding proteins, are responsible for chromatin compaction in sperm cells, but their DNA groove preference, major or minor, is not clearly identified. We herein study the DNA groove preference of a short protamine-like cationic peptide before and after phosphorylation, using all-atom molecular dynamics and umbrella sampling simulations. According to various thermodynamic and structural analyses, a peptide in its non-phosphorylated native state prefers the minor groove over the major groove, but phosphorylation of the peptide bound to the minor groove not only reduces its binding affinity but also brings a serious deformation of the minor groove, eliminating the minor-groove preference. As protamines are heavily phosphorylated before binding to DNA, we expect that the structurally disordered phosphorylated protamines would prefer major grooves to enter into DNA during spermatogenesis.
Collapse
Affiliation(s)
- Khadka B Chhetri
- Center for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore 560012, India.
- Department of Physics, Prithvinarayan Campus, Tribhuvan University, Pokhara, Nepal
| | - Yun Hee Jang
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
- Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris Saclay, 91405 Orsay, France
| | - Yves Lansac
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
- Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris Saclay, 91405 Orsay, France
| | - Prabal K Maiti
- Center for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore 560012, India.
| |
Collapse
|
3
|
de la Iglesia A, Jodar M, Oliva R, Castillo J. Insights into the sperm chromatin and implications for male infertility from a protein perspective. WIREs Mech Dis 2023; 15:e1588. [PMID: 36181449 DOI: 10.1002/wsbm.1588] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022]
Abstract
Male germ cells undergo an extreme but fascinating process of chromatin remodeling that begins in the testis during the last phase of spermatogenesis and continues through epididymal sperm maturation. Most of the histones are replaced by small proteins named protamines, whose high basicity leads to a tight genomic compaction. This process is epigenetically regulated at many levels, not only by posttranslational modifications, but also by readers, writers, and erasers, in a context of a highly coordinated postmeiotic gene expression program. Protamines are key proteins for acquiring this highly specialized chromatin conformation, needed for sperm functionality. Interestingly, and contrary to what could be inferred from its very specific DNA-packaging function across protamine-containing species, human sperm chromatin contains a wide spectrum of protamine proteoforms, including truncated and posttranslationally modified proteoforms. The generation of protamine knock-out models revealed not only chromatin compaction defects, but also collateral sperm alterations contributing to infertile phenotypes, evidencing the importance of sperm chromatin protamination toward the generation of a new individual. The unique features of sperm chromatin have motivated its study, applying from conventional to the most ground-breaking techniques to disentangle its peculiarities and the cellular mechanisms governing its successful conferment, especially relevant from the protein point of view due to the important epigenetic role of sperm nuclear proteins. Gathering and contextualizing the most striking discoveries will provide a global understanding of the importance and complexity of achieving a proper chromatin compaction and exploring its implications on postfertilization events and beyond. This article is categorized under: Reproductive System Diseases > Genetics/Genomics/Epigenetics Reproductive System Diseases > Molecular and Cellular Physiology.
Collapse
Affiliation(s)
- Alberto de la Iglesia
- Molecular Biology of Reproduction and Development Research Group, Fundació Clínic per a la Recerca Biomèdica, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Barcelona, Spain
| | - Meritxell Jodar
- Molecular Biology of Reproduction and Development Research Group, Fundació Clínic per a la Recerca Biomèdica, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Barcelona, Spain.,Biochemistry and Molecular Genetics Service, Hospital Clinic, Barcelona, Spain
| | - Rafael Oliva
- Molecular Biology of Reproduction and Development Research Group, Fundació Clínic per a la Recerca Biomèdica, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Barcelona, Spain.,Biochemistry and Molecular Genetics Service, Hospital Clinic, Barcelona, Spain
| | - Judit Castillo
- Molecular Biology of Reproduction and Development Research Group, Fundació Clínic per a la Recerca Biomèdica, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Barcelona, Spain
| |
Collapse
|
4
|
Blair JMA, Zeth K, Bavro VN, Sancho-Vaello E. The role of bacterial transport systems in the removal of host antimicrobial peptides in Gram-negative bacteria. FEMS Microbiol Rev 2022; 46:6617596. [PMID: 35749576 PMCID: PMC9629497 DOI: 10.1093/femsre/fuac032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 05/23/2022] [Accepted: 06/22/2022] [Indexed: 01/09/2023] Open
Abstract
Antibiotic resistance is a global issue that threatens our progress in healthcare and life expectancy. In recent years, antimicrobial peptides (AMPs) have been considered as promising alternatives to the classic antibiotics. AMPs are potentially superior due to their lower rate of resistance development, since they primarily target the bacterial membrane ('Achilles' heel' of the bacteria). However, bacteria have developed mechanisms of AMP resistance, including the removal of AMPs to the extracellular space by efflux pumps such as the MtrCDE or AcrAB-TolC systems, and the internalization of AMPs to the cytoplasm by the Sap transporter, followed by proteolytic digestion. In this review, we focus on AMP transport as a resistance mechanism compiling all the experimental evidence for the involvement of efflux in AMP resistance in Gram-negative bacteria and combine this information with the analysis of the structures of the efflux systems involved. Finally, we expose some open questions with the aim of arousing the interest of the scientific community towards the AMPs-efflux pumps interactions. All the collected information broadens our understanding of AMP removal by efflux pumps and gives some clues to assist the rational design of AMP-derivatives as inhibitors of the efflux pumps.
Collapse
Affiliation(s)
- Jessica M A Blair
- College of Medical and Dental Sciences, Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - Kornelius Zeth
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark
| | - Vassiliy N Bavro
- School of Life Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
| | - Enea Sancho-Vaello
- Corresponding author. College of Medical and Dental Sciences, Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom. E-mail:
| |
Collapse
|
5
|
Yamada M, Sugihara T, Yamada T. Anhydrous proton-conducting material consisting of basic protein protamine. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
6
|
Brogna R, Fan J, Sieme H, Wolkers WF, Oldenhof H. Drying and temperature induced conformational changes of nucleic acids and stallion sperm chromatin in trehalose preservation formulations. Sci Rep 2021; 11:14076. [PMID: 34234244 PMCID: PMC8263733 DOI: 10.1038/s41598-021-93569-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/23/2021] [Indexed: 12/27/2022] Open
Abstract
Even though dried sperm is not viable, it can be used for fertilization as long as its chromatin remains intact. In this study, we investigated drying- and temperature-induced conformational changes of nucleic acids and stallion sperm chromatin. Sperm was diluted in preservation formulations with and without sugar/albumin and subjected to convective drying at elevated temperatures on glass substrates. Accumulation of reactive oxygen species was studied during storage at different temperatures, and the sperm chromatin structure assay was used to assess DNA damage. Fourier transform infrared spectroscopy was used to identify dehydration and storage induced conformational changes in isolated DNA and sperm chromatin. Furthermore, hydrogen bonding in the preservation solutions associated with storage stability were investigated. Reactive oxygen species and DNA damage in dried sperm samples were found to accumulate with increasing storage temperature and storage duration. Non-reducing disaccharides (i.e., trehalose, sucrose) and albumin counteracted oxidative stress and preserved sperm chromatin during dried storage, whereas glucose increased DNA damage during storage. When sperm was dried in the presence of trehalose and albumin, no spectral changes were detected during storage at refrigeration temperatures, whereas under accelerated aging conditions, i.e., storage at 37 °C, spectral changes were detected indicating alterations in sperm chromatin structure.
Collapse
Affiliation(s)
- Raffaele Brogna
- Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, University of Veterinary Medicine Hannover, Hannover, Germany
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany
| | - Juezhu Fan
- Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Harald Sieme
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany
| | - Willem F Wolkers
- Biostabilization Laboratory, Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, University of Veterinary Medicine Hannover, Hannover, Germany
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany
| | - Harriëtte Oldenhof
- Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany.
| |
Collapse
|
7
|
Kim S, Romero-Lozano A, Hwang DS, Yoon JY. A guanidinium-rich polymer as a new universal bioreceptor for multiplex detection of bacteria from environmental samples. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125338. [PMID: 33592489 DOI: 10.1016/j.jhazmat.2021.125338] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/19/2021] [Accepted: 02/03/2021] [Indexed: 05/25/2023]
Abstract
Protamine, a guanidinium rich polymer, is proposed as a universal bioreceptor for bacteria, towards rapid and handheld bacteria detection from complex environmental water samples without the need for specific antibodies or primers. Escherichia coli K12, Salmonella Typhimurium, and Staphylococcus aureus (MSSA) were assayed, representing gram-negative, gram-positive, rod- and round-shaped bacteria. Samples and the protamine conjugated fluorescent particles were sequentially loaded to the paper microfluidic chips and flowed through the channels spontaneously via capillary action. The particles were aggregated via protamine-bacteria membrane interactions and unbound particles were rinsed via capillary action. A low-cost smartphone fluorescence microscope was designed, fabricated, and imaged the paper channels. A unique image processing algorithm isolated only the aggregated particles to detect all three bacteria (p < 0.05) with a detection limit of 101-102 CFU/mL. Protamine did not induce any particle aggregation with a model protein, algae, and virus. Successful bacteria detection was also demonstrated with environmental field water samples. Total assay time was < 10 min with neither extraction nor enrichment steps. In summary, a guanidinium-rich polymer showed a promise as a universal bioreceptor for bacteria and can be used on a paper microfluidic chip and smartphone quantification towards rapid and handheld detection.
Collapse
Affiliation(s)
- Sangsik Kim
- Department of Biosystems Engineering, The University of Arizona, Tucson, AZ 85721, United States; Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongsangbuk-do 37673, Republic of Korea
| | - Anakaren Romero-Lozano
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, United States
| | - Dong Soo Hwang
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongsangbuk-do 37673, Republic of Korea; Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongsangbuk-do 37673, Republic of Korea.
| | - Jeong-Yeol Yoon
- Department of Biosystems Engineering, The University of Arizona, Tucson, AZ 85721, United States; Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, United States.
| |
Collapse
|
8
|
Pereira DFDC, Matias Ribeiro MS, de Sousa Simamoto BB, Dias EHV, Costa JDO, Santos-Filho NA, Bordon KDCF, Arantes EC, Dantas NO, Silva ACA, de Oliveira F, Mamede CCN. Baltetin: a new C-type lectin-like isolated from Bothrops alternatus snake venom which act as a platelet aggregation inhibiting. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122695. [PMID: 33915386 DOI: 10.1016/j.jchromb.2021.122695] [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] [Received: 10/12/2020] [Revised: 03/27/2021] [Accepted: 03/30/2021] [Indexed: 12/23/2022]
Abstract
C-type lectin-like proteins found in snake venom, known as snaclecs, have important effects on hemostasis through targeting membrane receptors, coagulation factors and other hemostatic proteins. Here, we present the isolation and functional characterization of a snaclec isolated from Bothrops alternatus venom, designated as Baltetin. We purified the protein in three chromatographic steps (anion-exchange, affinity and reversed-phase chromatography). Baltetin is a dimeric snaclec that is approximately 15 and 25 kDa under reducing and non-reducing conditions, respectively, as estimated by SDS-PAGE. Matrix-assisted laser desorption and ionization time-of-flight mass spectrometry and Edman degradation sequencing revealed that Baltetin is a heterodimer. The first 40 amino acid residues of the N-terminal region of Baltetin subunits share a high degree of sequence identity with other snaclecs. Baltetin had a specific, dose-dependent inhibitory effect on epinephrine-induced platelet aggregation in human platelet-rich plasma, inhibiting up to 69% of platelet aggregation. Analysis of the infrared spectra suggested that the interaction between Baltetin and platelets can be attributed to the formation of hydrogen bonds between the PO32- groups in the protein and PO2- groups in the platelet membrane. This interaction may lead to membrane lipid peroxidation, which prevents epinephrine from binding to its receptor. The present work suggests that Baltetin, a new C-type lectin-like protein isolated from B. alternatus venom, is the first snaclec to inhibit epinephrine-induced platelet aggregation. This could be of medical interest as a new tool for the development of novel therapeutic agents for the prevention and treatment of thrombotic disorders.
Collapse
Affiliation(s)
| | | | | | | | - Júnia de Oliveira Costa
- Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro, Campus Ituiutaba, Ituiutaba, MG, Brazil
| | | | | | - Eliane Candiani Arantes
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Anielle Christine Almeida Silva
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Campus Uberlândia, Uberlândia, MG, Brazil; Instituto de Física, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Fábio de Oliveira
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Campus Uberlândia, Uberlândia, MG, Brazil
| | - Carla Cristine Neves Mamede
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Campus Uberlândia, Uberlândia, MG, Brazil.
| |
Collapse
|
9
|
Mukherjee A, Saurabh S, Olive E, Jang YH, Lansac Y. Protamine Binding Site on DNA: Molecular Dynamics Simulations and Free Energy Calculations with Full Atomistic Details. J Phys Chem B 2021; 125:3032-3044. [DOI: 10.1021/acs.jpcb.0c09166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arnab Mukherjee
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
| | - Suman Saurabh
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
| | - Enrick Olive
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
| | - Yun Hee Jang
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Yves Lansac
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
- Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris-Saclay, 91405 Orsay, France
| |
Collapse
|
10
|
Ben Maamar M, Beck D, Nilsson E, McCarrey JR, Skinner MK. Developmental origins of transgenerational sperm histone retention following ancestral exposures. Dev Biol 2020; 465:31-45. [PMID: 32628935 PMCID: PMC7484192 DOI: 10.1016/j.ydbio.2020.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022]
Abstract
Numerous environmental toxicants have been shown to induce the epigenetic transgenerational inheritance of disease and phenotypic variation. Alterations in the germline epigenome are necessary to transmit transgenerational phenotypes. In previous studies, the pesticide DDT (dichlorodiphenyltrichloroethane) and the agricultural fungicide vinclozolin were shown to promote the transgenerational inheritance of sperm differential DNA methylation regions, non-coding RNAs and histone retention, which are termed epimutations. These epimutations are able to mediate this epigenetic inheritance of disease and phenotypic variation. The current study was designed to investigate the developmental origins of the transgenerational differential histone retention sites (called DHRs) during gametogenesis of the sperm. Vinclozolin and DDT were independently used to promote the epigenetic transgenerational inheritance of these DHRs. Male control lineage, DDT lineage and vinclozolin lineage F3 generation rats were used to isolate round spermatids, caput epididymal spermatozoa, and caudal sperm. The DHRs distinguishing the control versus DDT lineage or vinclozolin lineage samples were determined at these three developmental stages. DHRs and a reproducible core of histone H3 retention sites were observed using an H3 chromatin immunoprecipitation-sequencing (ChIP-Seq) analysis in each of the germ cell populations. The chromosomal locations and genomic features of the DHRs were analyzed. A cascade of epigenetic histone retention site alterations was found to be initiated in the round spermatids and then further modified during epididymal sperm maturation. Observations show that in addition to alterations in sperm DNA methylation and ncRNA expression previously identified, the induction of differential histone retention sites (DHRs) in the later stages of spermatogenesis also occurs. This novel component of epigenetic programming during spermatogenesis can be environmentally altered and transmitted to subsequent generations through epigenetic transgenerational inheritance.
Collapse
Affiliation(s)
- Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Eric Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - John R McCarrey
- Department of Biology, University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA.
| |
Collapse
|
11
|
Assay of 1-hydroxypyrene via aggregation-induced quenching of the fluorescence of protamine-modified gold nanoclusters and 9-hydroxyphenanthrene-based sensitization. Mikrochim Acta 2019; 186:700. [PMID: 31617023 DOI: 10.1007/s00604-019-3810-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 09/09/2019] [Indexed: 12/27/2022]
Abstract
This work describes a method for the determination of 1-hydroxypyrene (OH-Py) via aggregation-induced quenching of the emission of protamine-coated gold nanoclusters using 9-hydroxyphenanthrene (OH-Phe) as a sensitizer to boost the emission efficiency of nanoprobe. Under optimum conditions, the drop in fluorescence intensity at excitation/emission wavelengths of 300/596 nm is proportional to the concentrations of OH-Py in the range from 1.0 to 65 nM. The relative standard deviations are 4.2, 2.4 and 1.9% (for n = 11) at concentration levels of 8.0, 32 and 48 nM of OH-Py, respectively. The detection limit is 0.3 nM which is much lower than that of some previously reported methods. The recoveries from urine samples spiked with OH-Py ranged between 94.4 and 98.8%. Graphical abstract 1-Hydroxypyrene (OH-Py) can trigger the aggregation of protamine-gold nanoclusters (PRT-AuNCs), resulting in the emission quenching of PRT-AuNCs. 9-Hydroxyphenanthrene (OH-Phe) can boost the emission efficiency of nanoprobe. Thereby, a highly sensitive assay of OH-Py was established.
Collapse
|
12
|
D'Ippolito RA, Minamino N, Rivera-Casas C, Cheema MS, Bai DL, Kasinsky HE, Shabanowitz J, Eirin-Lopez JM, Ueda T, Hunt DF, Ausió J. Protamines from liverwort are produced by post-translational cleavage and C-terminal di-aminopropanelation of several male germ-specific H1 histones. J Biol Chem 2019; 294:16364-16373. [PMID: 31527083 DOI: 10.1074/jbc.ra119.010316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/26/2019] [Indexed: 11/06/2022] Open
Abstract
Protamines are small, highly-specialized, arginine-rich, and intrinsically-disordered chromosomal proteins that replace histones during spermiogenesis in many organisms. Previous evidence supports the notion that, in the animal kingdom, these proteins have evolved from a primitive replication-independent histone H1 involved in terminal cell differentiation. Nevertheless, a direct connection between the two families of chromatin proteins is missing. Here, we primarily used electron transfer dissociation MS-based analyses, revealing that the protamines in the sperm of the liverwort Marchantia polymorpha result from post-translational cleavage of three precursor H1 histones. Moreover, we show that the mature protamines are further post-translationally modified by di-aminopropanelation, and previous studies have reported that they condense spermatid chromatin through a process consisting of liquid-phase assembly likely involving spinodal decomposition. Taken together, our results reveal that the interesting evolutionary ancestry of protamines begins with histone H1 in both the animal and plant kingdoms.
Collapse
Affiliation(s)
| | - Naoki Minamino
- Division of Cellular Dynamics, National Institute for Basic Biology, Nishigonaka 38, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Ciro Rivera-Casas
- Environmental Epigenetics Group, Department of Biological Sciences, Florida International University, North Miami, Florida 33181
| | - Manjinder S Cheema
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - Dina L Bai
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
| | - Harold E Kasinsky
- Department of Zoology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Jeffrey Shabanowitz
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904
| | - Jose M Eirin-Lopez
- Environmental Epigenetics Group, Department of Biological Sciences, Florida International University, North Miami, Florida 33181
| | - Takashi Ueda
- Division of Cellular Dynamics, National Institute for Basic Biology, Nishigonaka 38, Myodaiji, Okazaki, Aichi 444-8585, Japan.,Department of Basic Biology, SOKENDAI (Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Donald F Hunt
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904.,Department of Pathology, University of Virginia, Charlottesville, Virginia 22903
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| |
Collapse
|
13
|
Protamine-stabilized gold nanoclusters as a fluorescent nanoprobe for lead(II) via Pb(II)-Au(I) interaction. Mikrochim Acta 2018; 185:483. [PMID: 30269212 DOI: 10.1007/s00604-018-3019-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/23/2018] [Indexed: 12/31/2022]
Abstract
The authors report on a one-pot approach for synthesizing highly fluorescent protamine-stabilized gold nanoclusters. These are shown to be a viable nanoprobe for selective and sensitive fluorometric determination of lead(II) via quenching of fluorescence via Pb(II)-Au(I) interaction. Under optimized conditions, fluorescence measured at excitation/emission peaks of 300/599 nm drops in the 80 nM-15 μM lead(II) concentration range. The detection limit is 24 nM, and relative standard deviations (for n = 11) at concentrations of 0.10, 4.0 and 15 μM are 1.6, 2.5 and 1.9%, respectively. The relative recoveries of added lead(II) in the water samples ranged from 97.9 ± 2.29% to 101.2 ± 1.83%. Graphical abstract Lead(II) ions are found to be able to selectively and sensitively quench the fluorescence of the protamine-gold nanoclusters (PRT-AuNCs). Thereby, an inexpensive, selective and sensitive lead(II) assay was established.
Collapse
|
14
|
Balhorn R, Steger K, Bergmann M, Schuppe HC, Neuhauser S, Balhorn MC. New monoclonal antibodies specific for mammalian protamines P1 and P2. Syst Biol Reprod Med 2018; 64:424-447. [DOI: 10.1080/19396368.2018.1510063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Rod Balhorn
- Briar Patch Biosciences LLC, Livermore, CA, USA
| | - Klaus Steger
- Department of Urology, Pediatric Urology and Andrology, Section Molecular Andrology, Justus Liebig University, Giessen, Germany
| | - Martin Bergmann
- Department of Veterinary Anatomy, Histology and Embryology, Giessen, Germany
| | | | - Stefanie Neuhauser
- Pferdezentrum Bad Saarow, Veterinary Faculty of the University, Berlin, Germany
| | | |
Collapse
|
15
|
Abstract
In this chapter, a short evolutionary history and comparative analysis of sperm nuclear basic proteins (SNBPs) in marine invertebrates are presented based on some of the most recent publications in the field and building upon previously published reviews on the topic. Putative functions of SNBPs in sperm chromatin beyond DNA packaging will also be discussed with a primary focus on outstanding research questions.In somatic cells of all metazoans, DNA is packaged into tightly folded and dynamically accessible chromatin by canonical histones H2A, H2B, H3 and H4. Sperm chromatin of many animals, on the other hand, is organised by small yet structurally highly heterogeneous proteins called SNBPs, which can package sperm DNA on their own or in combination with each other. In extreme cases, sperm chromatin is condensed into a volume 6-10 times smaller than that of a somatic nucleus. SNBPs are classified into three major groups: H1 histone-type proteins (H-type SNBPs), protamines (P-type SNBPs) and protamine-like proteins (PL-type SNBPs). P-type SNBPs are mostly found in vertebrates, while PL-type SNBPs are ubiquitous in many invertebrate phyla. PL-type and P-type SNBPs evolved from histone H-type SNBP precursors through vertical evolution. Porifera, Ctenophora and Crustacea, Echinoidea (phylum Echinodermata) and Hydrozoa (phylum Hydrozoa) lack SNBPs. Echinoidea and Hydrozoa, however, evolved novel nucleosomal histone variants with specific roles during spermatogenesis. Seemingly, chromatin condensation plays a critical role in the silencing and tight packing of the genome within the sperm nucleus of most animals. However, the question of what necessitates the compaction of some sperm DNA beyond classical nucleosomal packaging while other sperm function using 'normal' histones remains unanswered to date.
Collapse
Affiliation(s)
- Anna Török
- Centre for Chromosome Biology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland.
| | - Sebastian G Gornik
- Centre for Chromosome Biology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland.
- Centre for Organismal Studies (COS), Heidelberg University, Heidelberg, Germany.
| |
Collapse
|
16
|
Don TM, Lu KY, Lin LJ, Hsu CH, Wu JY, Mi FL. Temperature/pH/Enzyme Triple-Responsive Cationic Protein/PAA-b-PNIPAAm Nanogels for Controlled Anticancer Drug and Photosensitizer Delivery against Multidrug Resistant Breast Cancer Cells. Mol Pharm 2017; 14:4648-4660. [DOI: 10.1021/acs.molpharmaceut.7b00737] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Trong-Ming Don
- Department
of Chemical and Materials Engineering, Tamkang University, New Taipei City 25137, Taiwan
| | - Kun-Ying Lu
- Graduate
Institute of Biomedical Materials and Tissue Engineering, College
of Biomedical Engineering, Taipei Medical University, Taipei City 11031, Taiwan
- Graduate
Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Li-Jie Lin
- Department
of Chemical and Materials Engineering, Tamkang University, New Taipei City 25137, Taiwan
| | - Chun-Hua Hsu
- Department
of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jui-Yu Wu
- Graduate
Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department
of Biochemistry and Molecular Cell Biology, School of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Fwu-Long Mi
- Graduate
Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department
of Biochemistry and Molecular Cell Biology, School of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Graduate
Institute of Nanomedicine and Medical Engineering, College of Biomedical
Engineering, Taipei Medical University, Taipei 11031, Taiwan
| |
Collapse
|
17
|
Matias MS, de Sousa BB, da Cunha Pereira DF, Dias EHV, Mamede CCN, de Queiroz MR, Silva ACA, Dantas NO, Soares AM, de Oliveira Costa J, de Oliveira F. BaltDC: purification, characterization and infrared spectroscopy of an antiplatelet DC protein isolated from Bothrops alternatus snake venom. J Venom Anim Toxins Incl Trop Dis 2017; 23:36. [PMID: 28775739 PMCID: PMC5534087 DOI: 10.1186/s40409-017-0126-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/12/2017] [Indexed: 12/29/2022] Open
Abstract
Background Snake venoms are a complex mixture of proteins, organic and inorganic compounds. Some of these proteins, enzymatic or non-enzymatic ones, are able to interact with platelet receptors, causing hemostatic disorders. The possible therapeutic potential of toxins with antiplatelet properties may arouse interest in the pharmacological areas. The present study aimed to purify and characterize an antiplatelet DC protein from Bothrops alternatus snake venom. Methods The protein, called BaltDC (DC protein from B. alternatus snake venom), was purified by a combination of ion-exchange chromatography on DEAE-Sephacel column and gel filtration on Sephadex G-75. The molecular mass was estimated by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate (SDS-PAGE). The amino acid sequence of the N-terminal region was carried out by Edman degradation method. Platelet aggregation assays were performed in human platelet-rich plasma (PRP). Infrared (IR) spectroscopy was used in order to elucidate the interactions between BaltDC and platelet membrane. Results BaltDC ran as a single protein band on SDS-PAGE and showed apparent molecular mass of 32 kDa under reducing or non-reducing conditions. The N-terminal region of the purified protein revealed the amino acid sequence IISPPVCGNELLEVGEECDCGTPENCQNECCDA, which showed identity with other snake venom metalloproteinases (SVMPs). BaltDC was devoid of proteolytic, hemorrhagic, defibrinating or coagulant activities, but it showed a specific inhibitory effect on platelet aggregation induced by ristocetin and epinephrine in PRP. IR analysis spectra strongly suggests that PO32− groups, present in BaltDC, form hydrogen bonds with the PO2− groups present in the non-lipid portion of the membrane platelets. Conclusions BaltDC may be of medical interest since it was able to inhibit platelet aggregation.
Collapse
Affiliation(s)
- Mariana Santos Matias
- Postgraduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil
| | - Bruna Barbosa de Sousa
- Postgraduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil.,National Institute of Science and Technology in Nanobiopharmaceutics (N-Biofar), Belo Horizonte, MG Brazil
| | - Déborah Fernanda da Cunha Pereira
- Postgraduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil
| | - Edigar Henrique Vaz Dias
- Postgraduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil
| | - Carla Cristine Neves Mamede
- Institute of Agricultural Sciences, Federal University of Uberlândia (UFU), Monte Carmelo, MG Brazil.,National Institute of Science and Technology in Nanobiopharmaceutics (N-Biofar), Belo Horizonte, MG Brazil
| | - Mayara Ribeiro de Queiroz
- National Institute of Science and Technology in Nanobiopharmaceutics (N-Biofar), Belo Horizonte, MG Brazil
| | | | | | - Andreimar Martins Soares
- Center for the Study of Biomolecules Applied to Health (CEBio), Oswaldo Cruz Foundation (Fiocruz - Rondônia) and Health Group, Federal University of Rondônia (UNIR), Porto Velho, RO Brazil.,University Center São Lucas (UniSL), Porto Velho, RO Brazil
| | - Júnia de Oliveira Costa
- Postgraduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil.,Federal Institute of Education, Science and Technology of Triângulo Mineiro (IFTM), Campus Ituiutaba, Ituiutaba, MG Brazil
| | - Fábio de Oliveira
- Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG Brazil.,National Institute of Science and Technology in Nanobiopharmaceutics (N-Biofar), Belo Horizonte, MG Brazil
| |
Collapse
|
18
|
Lu KY, Li R, Hsu CH, Lin CW, Chou SC, Tsai ML, Mi FL. Development of a new type of multifunctional fucoidan-based nanoparticles for anticancer drug delivery. Carbohydr Polym 2017; 165:410-420. [DOI: 10.1016/j.carbpol.2017.02.065] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/26/2016] [Accepted: 02/16/2017] [Indexed: 12/25/2022]
|
19
|
Malý M, Křížek T. Determination of Protamine and Insulin Using Short-End Injection Capillary Electrophoresis. Chromatographia 2016. [DOI: 10.1007/s10337-016-3180-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
20
|
Ellard K, Serpa JJ, Petrotchenko EV, Borchers CH, Ausió J. Expression and purification of the full murine NPM2 and study of its interaction with protamines and histones. Biochem Biophys Rep 2016; 6:165-171. [PMID: 28955874 PMCID: PMC5600342 DOI: 10.1016/j.bbrep.2016.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/19/2016] [Accepted: 04/04/2016] [Indexed: 11/27/2022] Open
Abstract
Mouse nucleoplasmin M.NPM2 was recombinantly expressed and the protein consisting of the complete sequence was purified and characterized. Similar to its Xenopus laevis X.NPM2 counterpart, the protein forms stable pentameric complexes and exhibits an almost undistinguishable hydrodynamic ionic strength-dependent unfolding behavior. The interaction of N.PM2 with histones and mouse P1/P2 protamines revealed that these chromosomal proteins bind preferentially to the distal part of the nucleoplasmin pentamer. Moreover, the present work highlights the critical role played by histones H2B and H4 in the association of the histone H2A-H2B dimers and histone octamer with nucleoplasmin. Characterization of the entire mouse M.NPM2 protein. Determination of sites of interaction of M.NPM2 with histones and mouse protamines. Use of crosslinking mass spectrometry to determine protein-protein interactions. Analysis of the C-terminal NPM2 unfolding.
Collapse
Affiliation(s)
- Katherine Ellard
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6
| | - Jason J Serpa
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6.,Genome British Columbia Proteomics Centre, University of Victoria, Victoria, BC, Canada V8Z 7X8
| | - Evgeniy V Petrotchenko
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6.,Genome British Columbia Proteomics Centre, University of Victoria, Victoria, BC, Canada V8Z 7X8
| | - Christoph H Borchers
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6.,Genome British Columbia Proteomics Centre, University of Victoria, Victoria, BC, Canada V8Z 7X8
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6
| |
Collapse
|
21
|
Liu YY, Chen XF, Hu JW, Chen ZW, Zhang LJ, Cao MJ, Liu GM. Purification and Characterization of Protamine, the Allergen from the Milt of Large Yellow Croaker (Pseudosciaena crocea), and Its Components. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1999-2011. [PMID: 26886067 DOI: 10.1021/acs.jafc.5b05899] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The protamine in fish milt can cause anaphylaxis in humans. To determine the allergen in the milt of large yellow croaker (Pseudosciaena crocea), crude extracts were incubated with sera from allergic patients. The results showed that a 12 kDa multicomponent protein was the major allergen in the milt of large yellow croaker. The multicomponent protein was purified, and physicochemical characterization showed that it was a glycoprotein, highly stable in acid-alkali conditions, and weakly retained immunoglobulin E (IgE)-binding activity at high temperatures. Separation and immunoreactivity analysis of the components of the multicomponent protein showed that it had six components, and component 5 had the strongest IgE-binding activity with patient sera. N-terminal sequencing confirmed the multicomponent protein was protamine. Following analysis of protamine from different fish by reversed-phase liquid chromatography and circular dichroism spectra, the protamines from different fish were found to have a similar secondary structure, although their components were different.
Collapse
Affiliation(s)
- Yan-Yun Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Xiao-Feng Chen
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Jia-Wei Hu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Zhong-Wei Chen
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Ling-Jing Zhang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University , 43 Yindou Road, Xiamen, Fujian 361021, China
- Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen
| |
Collapse
|
22
|
Oldenhof H, Schütze S, Wolkers WF, Sieme H. Fourier transform infrared spectroscopic analysis of sperm chromatin structure and DNA stability. Andrology 2016; 4:430-41. [PMID: 26916383 DOI: 10.1111/andr.12166] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/07/2016] [Accepted: 01/11/2016] [Indexed: 01/16/2023]
Abstract
Sperm chromatin structure and condensation determine accessibility for damage, and hence success of fertilization and development. The aim of this study was to reveal characteristic spectral features coinciding with abnormal sperm chromatin packing (i.e., DNA-protein interactions) and decreased fertility, using Fourier transform infrared spectroscopy. Chromatin structure in spermatozoa obtained from different stallions was investigated. Furthermore, spermatozoa were exposed to oxidative stress, or treated with thiol-oxidizing and disulfide-reducing agents, to alter chromatin structure and packing. Spectroscopic studies were corroborated with flow cytometric analyses using the DNA-intercalating fluorescent dye acridine orange. Decreased fertility of individuals correlated with increased abnormal sperm morphology and decreased stability toward induced DNA damage. Treatment with the disulfide reducing agent dithiothreitol resulted in increased sperm chromatin decondensation and DNA accessibility, similar as found for less mature epididymal spermatozoa. In situ infrared spectroscopic analysis revealed that characteristic bands arising from the DNA backbone (ν1230, ν1086, ν1051 cm(-1) ) changed in response to induced oxidative damage, water removal, and decondensation. This coincided with changes in the amide-I region (intensity at ν1620 vs. ν1640 cm(-1) ) denoting concomitant changes in protein secondary structure. Reduction in protein disulfide bonds resulted in a decreased value of the asymmetric to symmetric phosphate band intensity (ν1230/ν1086 cm(-1) ), suggesting that this band ratio is sensitive for the degree of chromatin condensation. Moreover, when analyzing spermatozoa from different individuals, it was found that the asymmetric/symmetric phosphate band ratio negatively correlated with the percentage of morphologically abnormal spermatozoa.
Collapse
Affiliation(s)
- H Oldenhof
- Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Hannover, Germany
| | - S Schütze
- Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Hannover, Germany.,National Stud Lower Saxony, Celle, Germany
| | - W F Wolkers
- Institute of Multiphase Processes, Leibniz Universität Hannover, Hannover, Germany
| | - H Sieme
- Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
23
|
Shivanoor SM, David M. Fourier transform infrared (FT-IR) study on cyanide induced biochemical and structural changes in rat sperm. Toxicol Rep 2015; 2:1347-1356. [PMID: 28962477 PMCID: PMC5598370 DOI: 10.1016/j.toxrep.2015.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/07/2015] [Accepted: 10/09/2015] [Indexed: 11/30/2022] Open
Abstract
In the recent years, great attention had been focused on cyanide toxicity because of its widespread use in industries and considered to be a ubiquitous pollutant in the environment. Therefore, the current study aimed to evaluate the toxic effect of cyanide on rat sperms at molecular level by using FT-IR technique. For this purpose, rats were randomly divided into four groups and treated with 0.0, 0.64, 1.2 and 3.2 mg kg-1 body weight (BW) for the period of 90 days. The group treated with lower dose (0.64 mg kg-1 BW) showed an insignificant change in all the peaks, except the peaks assigned to olefinic 000000000000 000000000000 000000000000 111111111111 000000000000 111111111111 000000000000 000000000000 000000000000 C-H, CH2 asymmetric and CH2 symmetric stretching vibration in the lipids. While, the groups treated with higher doses (1.2 and 3.2 mg kg-1 BW) showed the significant decrease in the area under the peaks corresponds to different bio-molecules. In addition, spectral second derivative analysis showed the significant alteration in α-helix, turns, β-sheet, aggregated β-sheet and random coil structures in the proteins. In conclusion, the selected higher dosage of cyanide had caused significant decrease in the biochemical composition of rat sperms along with structural changes in the proteins. The FT-IR technique is an excellent tool used for the analysis of oxidative damage in the sperms.
Collapse
Affiliation(s)
- Shiddappa Mallappa Shivanoor
- Environmental and Molecular Toxicology Laboratory, Department of Zoology, Karnatak University, Dharwad, 580003 Karnataka, India
| | - Muniswamy David
- Environmental and Molecular Toxicology Laboratory, Department of Zoology, Karnatak University, Dharwad, 580003 Karnataka, India
| |
Collapse
|
24
|
Ausió J, González-Romero R, Woodcock CL. Comparative structure of vertebrate sperm chromatin. J Struct Biol 2014; 188:142-55. [PMID: 25264147 DOI: 10.1016/j.jsb.2014.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 09/11/2014] [Accepted: 09/17/2014] [Indexed: 12/11/2022]
Abstract
A consistent feature of sperm nuclei is its exceptionally compact state in comparison with somatic nuclei. Here, we have examined the structural organization of sperm chromatin from representatives of three vertebrate lineages, bony fish (Danio rerio), birds (Gallus gallus domesticus) and mammals (Mus musculus) using light and transmission electron microscopy (TEM). Although the three sperm nuclei are all highly compact, they differ in morphology and in the complement of compaction-inducing proteins. Whereas zebrafish sperm retain somatic histones and a nucleosomal organization, in the rooster and mouse, histones are largely replaced by small, arginine-rich protamines. In contrast to the mouse, the rooster protamine contains no cysteine residues and lacks the potential stabilizing effects of S-S bonds. Protamine driven chromatin compaction results in a stable, highly condensed chromatin, markedly different from the somatic nucleosome-based beads-on-a-string architecture, but its structure remains poorly understood. When prepared gently for whole mount TEM, the rooster and mouse sperm chromatin reveal striking rod-like units 40-50 nm in width. Also present in the mouse, which has very flattened sperm nuclei, but not rooster, where nuclei take the form of elongated cylinders, are toroidal shaped structures, with an external diameter of about 90 nm. In contrast, similarly prepared zebrafish sperm exhibit nucleosomal chromatin. We also examined the early stages in the binding of salmine (the salmon protamine) to defined sequence DNA. These images suggest an initial side-by-side binding of linear DNA-protamine complexes leading to the nucleation of thin, flexible rods with the potential to bend, allowing the ends to come into contact and fuse to form toroidal structures. We discuss the relationship between these in vitro observations and the rods and toroids seen in nuclei, and suggest an explanation for the apparent absence of these structures in TEM images of fully condensed sperm nuclei.
Collapse
Affiliation(s)
- Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada
| | - Rodrigo González-Romero
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada
| | | |
Collapse
|
25
|
Castillo J, Amaral A, Oliva R. Sperm nuclear proteome and its epigenetic potential. Andrology 2013; 2:326-38. [PMID: 24327354 DOI: 10.1111/j.2047-2927.2013.00170.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/08/2013] [Accepted: 11/11/2013] [Indexed: 11/29/2022]
Abstract
The main function of the sperm cell is to transmit the paternal genetic message and epigenetic information to the embryo. Importantly, the majority of the genes in the sperm chromatin are highly condensed by protamines, whereas genes potentially needed in the initial stages of development are associated with histones, representing a form of epigenetic marking. However, so far little attention has been devoted to other sperm chromatin-associated proteins that, in addition to histones and protamines, may also have an epigenetic role. Therefore, with the goal of contributing to cover this subject we have compiled, reviewed and report a list of 581 chromatin or nuclear proteins described in the human sperm cell. Furthermore, we have analysed their Gene Ontology Biological Process enriched terms and have grouped them into different functional categories. Remarkably, we show that 56% of the sperm nuclear proteins have a potential epigenetic activity, being involved in at least one of the following functions: chromosome organization, chromatin organization, protein-DNA complex assembly, DNA packaging, gene expression, transcription, chromatin modification and histone modification. In addition, we have also included and compared the sperm cell proteomes of different model species, demonstrating the existence of common trends in the chromatin composition in the mammalian mature male gamete. Taken together, our analyses suggest that the mammalian sperm cell delivers to the offspring a rich combination of histone variants, transcription factors, chromatin-associated and chromatin-modifying proteins which have the potential to encode and transmit an extremely complex epigenetic information.
Collapse
Affiliation(s)
- J Castillo
- Human Genetics Research Group, IDIBAPS, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Biochemistry and Molecular Genetics Service, Hospital Clinic, Barcelona, Spain
| | | | | |
Collapse
|
26
|
Saperas N, Ausió J. Sperm nuclear basic proteins of tunicates and the origin of protamines. THE BIOLOGICAL BULLETIN 2013; 224:127-136. [PMID: 23995738 DOI: 10.1086/bblv224n3p127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sperm nuclear basic proteins (SNBPs) are the chromosomal proteins that are found associated with DNA in sperm nuclei at the end of spermiogenesis. These highly specialized proteins can be classified into three major types: histone type (H-type), protamine-like type (PL-type), and protamine type (P-type). A hypothesis from early studies on the characterization of SNBPs proposed a mechanism for the vertical evolution of these proteins that involved an H1 → PL → P transition. However, the processes and mechanisms involved in such a transition were not understood. In particular, it was not clear how a molecular transition from a lysine-rich protein precursor (H1 histone) to the arginine-rich protamines might have taken place. In deuterostomes, the presence of SNBPs of the H-type in echinoderms and of protamines in the higher phylogenetic groups of vertebrates had long been known. The initial work on the characterization of tunicate SNBPs attempted to define the types and range of SNBPs that characterize this phylogenetically intermediate group. It was found that tunicate SNBPs belong to the PL-type. In this work we discuss how the study of SNBPs in the tunicates has been key to providing support to the H1 → PL → P transition. Most significantly, it was in tunicates that a potential molecular mechanism to explain the lysine-to-arginine transition was first reported.
Collapse
Affiliation(s)
- Núria Saperas
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Barcelona, Spain.
| | | |
Collapse
|
27
|
Liu T, Huang Y, Liu J, Zhao Y, Jiang L, Huang Q, Cheng W, Guo L. MicroRNA-122 influences the development of sperm abnormalities from human induced pluripotent stem cells by regulating TNP2 expression. Stem Cells Dev 2013; 22:1839-50. [PMID: 23327642 DOI: 10.1089/scd.2012.0653] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Sperm abnormalities are one of the main factors responsible for male infertility; however, their pathogenesis remains unclear. The role of microRNAs in the development of sperm abnormalities in infertile men has not yet been investigated. Here, we used human induced pluripotent stem cells to investigate the influence of miR-122 expression on the differentiation of these cells into spermatozoa-like cells in vitro. After induction, mutant miR-122-transfected cells formed spermatozoa-like cells. Flow cytometry of DNA content revealed a significant increase in the haploid cell population in spermatozoa-like cells derived from mutant miR-122-transfected cells as compared to those derived from miR-122-transfected cells. During induction, TNP2 and protamine mRNA and protein levels were significantly higher in mutant miR-122-transfected cells than in miR-122-transfected cells. High-throughput isobaric tags for relative and absolute quantification were used to identify and quantify the different protein expression levels in miR-122- and mutant miR-122-transfected cells. Among all the proteins analyzed, the expression of lipoproteins, for example, APOB and APOA1, showed the most significant difference between the two groups. This study illustrates that miR-122 expression is associated with abnormal sperm development. MiR-122 may influence spermatozoa-like cells by suppressing TNP2 expression and inhibiting the expression of proteins associated with sperm development.
Collapse
Affiliation(s)
- Te Liu
- International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University, Shanghai, China.
| | | | | | | | | | | | | | | |
Collapse
|