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Engel KM, Dzyuba V, Dzyuba B, Schiller J. Different glycolipids in sperm from different freshwater fishes - A high-performance thin-layer chromatography/electrospray ionization mass spectrometry study. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8875. [PMID: 32621632 DOI: 10.1002/rcm.8875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Glycolipids play important roles in many physiological processes - despite their commonly low abundance. This study summarizes selected data on the (glyco)lipid composition of sperm from different fish species. METHODS Lipid extraction of fish sperm was performed according to the procedure by Bligh and Dyer. The lipid composition of the organic extracts was analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) and electrospray ionization ion trap (ESI-IT)MS coupled to high-performance thin-layer chromatography (HPTLC). RESULTS It was shown that sperm from carp, northern pike, rainbow trout and burbot contain high amounts of neutral and acidic glycosphingolipids as well as sulfoglycolipids. These particular lipids are presumably involved in reproduction requirements. CONCLUSIONS Phospholipids and glycolipids in crude lipid extracts can be analyzed in parallel by MS coupled to TLC. The direct application of tandem mass spectrometry (MS/MS) helps to elucidate the glycolipid structure. Thus, compositional analysis can be performed very rapidly.
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Affiliation(s)
- Kathrin M Engel
- Institute for Medical Physics and Biophysics, Medical Faculty, Leipzig University, Härtelstr. 16-18, Leipzig, 04107, Germany
| | - Viktoriya Dzyuba
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre for Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Borys Dzyuba
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre for Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Jürgen Schiller
- Institute for Medical Physics and Biophysics, Medical Faculty, Leipzig University, Härtelstr. 16-18, Leipzig, 04107, Germany
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Tanphaichitr N, Kongmanas K, Faull KF, Whitelegge J, Compostella F, Goto-Inoue N, Linton JJ, Doyle B, Oko R, Xu H, Panza L, Saewu A. Properties, metabolism and roles of sulfogalactosylglycerolipid in male reproduction. Prog Lipid Res 2018; 72:18-41. [PMID: 30149090 PMCID: PMC6239905 DOI: 10.1016/j.plipres.2018.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 12/16/2022]
Abstract
Sulfogalactosylglycerolipid (SGG, aka seminolipid) is selectively synthesized in high amounts in mammalian testicular germ cells (TGCs). SGG is an ordered lipid and directly involved in cell adhesion. SGG is indispensable for spermatogenesis, a process that greatly depends on interaction between Sertoli cells and TGCs. Spermatogenesis is disrupted in mice null for Cgt and Cst, encoding two enzymes essential for SGG biosynthesis. Sperm surface SGG also plays roles in fertilization. All of these results indicate the significance of SGG in male reproduction. SGG homeostasis is also important in male fertility. Approximately 50% of TGCs become apoptotic and phagocytosed by Sertoli cells. SGG in apoptotic remnants needs to be degraded by Sertoli lysosomal enzymes to the lipid backbone. Failure in this event leads to a lysosomal storage disorder and sub-functionality of Sertoli cells, including their support for TGC development, and consequently subfertility. Significantly, both biosynthesis and degradation pathways of the galactosylsulfate head group of SGG are the same as those of sulfogalactosylceramide (SGC), a structurally related sulfoglycolipid important for brain functions. If subfertility in males with gene mutations in SGG/SGC metabolism pathways manifests prior to neurological disorder, sperm SGG levels might be used as a reporting/predicting index of the neurological status.
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Affiliation(s)
- Nongnuj Tanphaichitr
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Obstetrics/Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Kessiri Kongmanas
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Division of Dengue Hemorrhagic Fever Research, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Kym F Faull
- Pasarow Mass Spectrometry Laboratory, University of California, Los Angeles, California, USA
| | - Julian Whitelegge
- Pasarow Mass Spectrometry Laboratory, University of California, Los Angeles, California, USA
| | - Federica Compostella
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Via Saldini 50, 20133 Milano, Italy
| | - Naoko Goto-Inoue
- Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Kanagawa 252-0880, Japan
| | - James-Jules Linton
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Brendon Doyle
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Richard Oko
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Hongbin Xu
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Luigi Panza
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Arpornrad Saewu
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Intasqui P, Camargo M, Del Giudice PT, Spaine DM, Carvalho VM, Cardozo KHM, Zylbersztejn DS, Bertolla RP. Sperm nuclear DNA fragmentation rate is associated with differential protein expression and enriched functions in human seminal plasma. BJU Int 2013; 112:835-43. [PMID: 23890255 DOI: 10.1111/bju.12233] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To analyse the proteomic profile of seminal plasma with the aim of identifying the proteins and post-genomic pathways associated with sperm DNA fragmentation. MATERIALS AND METHODS A cross-sectional study including 89 subjects from a human reproduction service was carried out. All semen samples were assessed for sperm DNA fragmentation using a comet assay. Results from 60 sperm were analysed using Komet 6.0.1 software and the 'Olive tail moment' variable was used to stratify these into low and high sperm DNA fragmentation groups. Seminal plasma proteins from the two groups were pooled and used for proteomic analysis. Quantitative data were used for functional enrichment studies. RESULTS Seventy-two proteins were identified or quantified in seminal plasma. Of these, nine were differentially expressed in the low group and 21 in the high group. Forty-two proteins were conserved between these groups. Functional enrichment analysis indicated that sperm DNA fragmentation was related to functions such as lipoprotein particle remodelling and regulation, fatty acid binding and immune response. Proteins found exclusively in the low group may be involved in correcting spermatogenesis and/or improving sperm function. Proteins in the high group were associated with increased innate immune response, sperm motility and/or maturation and inhibition of mitochondrial apoptosis. CONCLUSION Protein expression and post-genomic pathways of seminal plasma differ according to the rate of sperm DNA integrity.
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Affiliation(s)
- Paula Intasqui
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University
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4
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Interaction of arylsulfatase-A (ASA) with its natural sulfoglycolipid substrates: a computational and site-directed mutagenesis study. Glycoconj J 2009; 26:1029-45. [DOI: 10.1007/s10719-008-9222-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Revised: 11/06/2008] [Accepted: 12/09/2008] [Indexed: 10/20/2022]
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5
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Lingwood D, Fisher LJ, Callahan JW, Ballantyne JS. Sulfatide and Na+-K+-ATPase: A Salinity-sensitive Relationship in the Gill Basolateral Membrane of Rainbow Trout. J Membr Biol 2004; 201:77-84. [PMID: 15630545 DOI: 10.1007/s00232-004-0708-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Revised: 07/17/2004] [Indexed: 10/26/2022]
Abstract
We investigated the effect of salinity on the relationship between Na(+)-K(+)-ATPase and sulfogalactosyl ceramide (SGC) in the basolateral membrane of rainbow trout (Oncorhynchus mykiss) gill epithelium. SGC has been implicated as a cofactor in Na(+)-K(+)-ATPase activity, especially in Na(+)-K(+)-ATPase rich tissues. However, whole-tissue studies have questioned this role in the fish gill. We re-examined SGC cofactor function from a gill basolateral membrane perspective. Nine SGC fatty acid species were quantified by tandem mass spectrometry (MS/MS) and related to Na(+)-K(+)-ATPase activity in trout acclimated to freshwater or brackish water (20 ppt). While Na(+)-K(+)-ATPase activity increased, the total concentration and relative proportion of SGC isoforms remained constant between salinities. However, we noted a negative correlation between SGC concentration and Na(+)-K(+)-ATPase activity in fish exposed to brackish water, whereas no correlation existed in fish acclimated to freshwater. Differential Na(+)-K(+)-ATPase/SGC sensitivity is discussed in relation to enzyme isoform switching, the SGC cofactor site model and saltwater adaptation.
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Affiliation(s)
- D Lingwood
- Department of Zoology, University of Guelph, ON N1G 2W1, Canada.
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6
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Carmona E, Weerachatyanukul W, Soboloff T, Fluharty AL, White D, Promdee L, Ekker M, Berger T, Buhr M, Tanphaichitr N. Arylsulfatase a is present on the pig sperm surface and is involved in sperm-zona pellucida binding. Dev Biol 2002; 247:182-96. [PMID: 12074561 DOI: 10.1006/dbio.2002.0690] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have previously described the affinity of a pig sperm surface protein, P68, to mammalian zonae pellucidae (ZP). In this report, we identified P68 as arylsulfatase A (AS-A) based on the presence of P68 tryptic peptide sequences in the pig testis AS-A cDNA sequence. Our objective was to demonstrate the presence of AS-A on the sperm surface and to elucidate its role in ZP binding. Immunogold electron microscopy revealed the presence of AS-A on the sperm surface. Furthermore, live pig sperm and the extract of peripheral sperm plasma membrane proteins exhibited AS-A's desulfation activity. Significantly, the role of pig sperm surface AS-A in ZP binding was demonstrated by dose-dependent decreases of sperm-ZP binding upon sperm pretreatment with anti-AS-A IgG/Fab, and by the binding of Alexa-430-conjugated sperm surface AS-A to homologous ZP. ZP pretreatment with anti-pig-ZP3 antibody abolished AS-A binding, suggesting that ZP3, recognized as the pig sperm receptor, was AS-A's binding ligand. This was further confirmed by the ability of exogenous ZP3 to competitively inhibit AS-A-ZP binding. Similarly, purified ZP3alpha, a major sperm receptor component of ZP3, exhibited great inhibitory effect on AS-A-ZP binding. All of these results designated a new function of AS-A in gamete interaction.
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Affiliation(s)
- Euridice Carmona
- Hormones/Growth/Development Research Group, Ottawa Health Research Institute, Ontario, Canada K1Y 4E9
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7
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Påhlsson P, Spitalnik SL, Spitalnik PF, Fantini J, Rakotonirainy O, Ghardashkhani S, Lindberg J, Konradsson P, Larson G. Characterization of galactosyl glycerolipids in the HT29 human colon carcinoma cell line. Arch Biochem Biophys 2001; 396:187-98. [PMID: 11747296 DOI: 10.1006/abbi.2001.2610] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Glycoglycerolipids constitute a family of glycolipids with apparently very restricted expression in human tissues. They have previously been detected only in the testis and the nervous system. In the present study, two glycoglycerolipids were isolated from the HT29 human colon carcinoma cell line. The glycoglycerolipids were structurally characterized as a monogalactosylglycerolipid (1-O-alkyl-2-O-acyl-3-O-(beta-galactosyl)-sn-glycerol) and a digalactosylglycerolipid (1-O-alkyl-2-O-acyl-3-O-(beta-galactosyl(1-4)alpha-galactosyl)-sn-glycerol) using NMR and mass spectrometry. This digalactosylglycerolipid has not previously been structurally characterized. When HT29 cells were allowed to differentiate into more enterocyte-like cells by culture in glucose-free medium, expression of both of these glycoglycerolipids was greatly diminished. The presence of glycoglycerolipids in a human colon carcinoma cell line indicates that expression of this family of glycolipids may not be as restricted as previously thought. Instead this class of glycolipids may serve as differentiation antigens in various normal tissues and in tumor development. The Galalpha1-4Gal epitope was previously identified as a receptor for bacterial adhesins and toxins. The finding that this epitope is also linked to a glycerolipid moiety opens up new possible roles for this carbohydrate receptor in intracellular signaling.
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Affiliation(s)
- P Påhlsson
- Department of Biomedicine and Surgery, Linköping University, S-581 85 Linköping, Sweden.
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8
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Weerachatyanukul W, Rattanachaiyanont M, Carmona E, Furimsky A, Mai A, Shoushtarian A, Sirichotiyakul S, Ballakier H, Leader A, Tanphaichitr N. Sulfogalactosylglycerolipid is involved in human gamete interaction. Mol Reprod Dev 2001; 60:569-78. [PMID: 11746968 DOI: 10.1002/mrd.1122] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Recent results from our laboratory have revealed the role of sulfogalactosylglycerolipid (SGG) in mouse sperm-zona pellucida (ZP) binding. In this report, we demonstrated the presence of SGG in Percoll-gradient centrifuged (PGC) human sperm by high performance thin layer chromatography with orcinol and Azure A staining, specific for glycolipids and sulfolipids, respectively. SGG in human PGC sperm was quantified by its affinity to Azure A to be 12-15 mol% of sperm lipids. Indirect immunofluorescence revealed that SGG existed on both live and aldehyde fixed human sperm in the head region. Pretreatment of human PGC sperm with affinity purified antiSGG Fab markedly inhibited sperm binding to the ZP in a concentration dependent manner, without any changes in the spontaneous acrosome rate or sperm motility parameters. Fluorescently labeled SGG liposomes also bound uniformly to isolated human ZP, while fluorescently labeled galactosylglycerolipid (GG, SGG's parental lipid) or phosphatidylserine (PS, negatively charged like SGG) liposomes did not. All of these results suggested the role of human sperm SGG in ZP binding.
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Affiliation(s)
- W Weerachatyanukul
- Hormones/Growth/Development, Ottawa Health Research Institute, University of Ottawa Hospital, Ottawa, Ontario, Canada, K1Y 4E9
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9
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Mamelak D, Mylvaganam M, Tanahashi E, Ito H, Ishida H, Kiso M, Lingwood C. The aglycone of sulfogalactolipids can alter the sulfate ester substitution position required for hsc70 recognition. Carbohydr Res 2001; 335:91-100. [PMID: 11567640 DOI: 10.1016/s0008-6215(01)00209-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
3'-Sulfogalactolipids(SGLs), sulfogalactosyl ceramide (SGC), and sulfogalactoglycerolipid (SGG) bind to the N-terminal ATPase-containing domain of members of the heat shock protein 70 family. We have probed this binding specificity using a series of synthetic positional sulfated or phosphorylated glycolipid analogues, containing either a long-chain bisalkyl hydrocarbon-2-(tetradecyl)hexadecane (B30) or C(18) ceramide (SGC(18)) backbone. By TLC overlay and receptor ELISA, recombinant hsc70 bound ceramide-based glycoconjugates having 3'- or 4'-sulfogalactose glycone moieties and the 4'-sulfogalactose positional isomer conjugated to B30. Hsc70 binding was significantly decreased to the 3'-sulfogalactose conjugated to the long-chain branched alkane. 3'-Sulfoglucose conjugated to B30 was not bound, nor were similarly conjugated di-, tri-, and tetra-sulfated or phosphorylated galactolipids. These results highlight the importance of the position, rather than the number of sulfate esters within the galactose ring. This binding selectivity was shared by the sea urchin hsp70-related sperm receptor. A 3'-SGC-based soluble inhibitor, in which the acyl chain was replaced with an adamantyl group, inhibited binding of hsc70 to both 3'- and 4'-SGC species with an IC(50) of 50 and 75 microM, respectively, indicating a shared sulfogalactose binding site. These studies demonstrate the highly specific nature of hsc70/SGL binding and show, for the first time, that the lipid aglycone can alter the substitution position requirement for glycolipid recognition.
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Affiliation(s)
- D Mamelak
- Research Institute, Hospital for Sick Children, 555 University Avenue, Toronto, Ont., Canada M5G 1X8
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10
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Mamelak D, Lingwood C. The ATPase domain of hsp70 possesses a unique binding specificity for 3'-sulfogalactolipids. J Biol Chem 2001; 276:449-56. [PMID: 11024054 DOI: 10.1074/jbc.m006732200] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The region(s) of hsp70 critical for sulfogalactolipid (SGL) recognition has been defined through deletion analysis and site-directed mutagenesis. Truncated polymerase chain reaction products of hsp70 generated N-terminal fragments of 43, 35, 29, and 22 kDa. The C terminus substrate-binding domain (28 kDa) was also expressed. The N-terminal ATPase domain (rP43) shared the binding specificity of hsp70, because only sulfogalactosyl ceramide and sulfogalactosyl glycerolipid were recognized by both TLC overlay and RELISA. The C-terminal domain showed no binding. SGL binding of rP29 and rP22 was severely reduced. The loss of SGL binding for rP35 by RELISA but not TLC overlay was considered as a function of receptor presentation. The truncation of rP43 to rP35 demonstrates that residues 318-387 (the base of the ATP binding cleft) are critical for high affinity SGL binding. Mutagenesis showed that Arg(342) and Phe(198) are crucial for this process. SGL binding, mediated by these conserved residues within the ATPase domain of hsp70, implies that this binding specificity is evolutionarily conserved.
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Affiliation(s)
- D Mamelak
- Division of Infection, Immunity, Injury, and Repair, Research Institute, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
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11
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12
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Affiliation(s)
- I Ishizuka
- Teikyo University School of Medicine, Tokyo, Japan
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13
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Albright AV, Lavi E, O'Connor M, González-Scarano F. HIV-1 infection of a CD4-negative primary cell type: The oligodendrocyte. ACTA ACUST UNITED AC 1996. [DOI: 10.1007/bf02174000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Harouse JM, González-Scarano F. Infection of SK-N-MC cells, a CD4-negative neuroblastoma cell line, with primary human immunodeficiency virus type 1 isolates. J Virol 1996; 70:7290-4. [PMID: 8794385 PMCID: PMC190791 DOI: 10.1128/jvi.70.10.7290-7294.1996] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Most studies looking at CD4-independent infection have used laboratory strains or their respective molecular clones. To determine whether primary human immunodeficiency virus type 1 isolates could infect CD4-negative cells, we obtained a panel of 23 clinical isolates and characterized the early steps of the viral life cycle in SK-N-MC cells, a CD4-negative, galactosylceramide-positive neuroblastoma cell line. Eight of 23 isolates established a nonproductive infection; entry and postentry restrictions were noted in the others. We were unable to correlate the infectivity for SK-N-MC cells with established biological phenotypes, such as syncytium induction, or with genetic classifications, suggesting that pantropism is an independent biological variable.
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Affiliation(s)
- J M Harouse
- Graduate Group in Molecular Biology, University of Pennsylvania Medical Center, Philadelphia 19104-6146, USA
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15
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Boulanger J, Faulds D, Eddy EM, Lingwood CA. Members of the 70 kDa heat shock protein family specifically recognize sulfoglycolipids: role in gamete recognition and mycoplasma-related infertility. J Cell Physiol 1995; 165:7-17. [PMID: 7559808 DOI: 10.1002/jcp.1041650103] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have previously shown that several mycoplasma species associated with infertility bind specifically to sulfated glycolipids isolated from the mammalian reproductive tract. We now show that a germ cell-specific sulfoglycolipid binding protein (SLIP 1), which is a potent inhibitor of sperm/egg binding in vitro, is immunologically related to the heat shock protein(Hsp) 70 family of stress proteins and that Hsps are surface antigens in male germ cells. Our present data demonstrate that several mycoplasma and mammalian Hsps share this glycolipid binding specificity in vitro, and suggest that surface Hsps can function as adhesins which mediate sulfoglycolipid recognition in infectious disease and normal reproductive physiology.
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Affiliation(s)
- J Boulanger
- Department of Microbiology, Hospital for Sick Children, Toronto, Ontario, Canada
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16
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Tupper S, Wong PT, Kates M, Tanphaichitr N. Interaction of divalent cations with germ cell specific sulfogalactosylglycerolipid and the effects on lipid chain dynamics. Biochemistry 1994; 33:13250-8. [PMID: 7947732 DOI: 10.1021/bi00249a011] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sulfogalactosylglycerolipid (SGG) is a sulfoglycolipid found ubiquitously in the plasma membrane of mammalian male germ cells. Although its exact cellular function(s) is unknown, it is speculated that SGG may play a role in cation transport, which may be important in sperm-egg interaction. Given the significant role of Ca2+ in many fertilization-related events, the purpose of this study was to determine whether Ca2+ interaction with the negatively charged sulfate group of SGG results in changes to the SGG lipid chain molecular dynamics and to compare these lipid dynamics with those resulting from Na+, Mg2+, or Sr2+ interaction with SGG. Pressure-tuning Fourier transform infrared spectroscopy was used in this study. The results obtained showed that all three divalent cations interacted electrostatically with the sulfate moiety of hydrated SGG, although with varying degrees of strength. It was found that the hydrocarbon chains of hydrated SGG-Na+ multilamellar bilayers were interdigitated, thus increasing disorderedness of the terminal CH3 group of the hydrocarbon chains. The presence of each of the three divalent cations abolished this interdigitation state. Presumably, this is through the cross-linking interaction of each divalent cation with the sulfate groups of neighboring lipid molecules. Moreover, divalent cation interaction was found to increase the lipid chain dynamics of SGG, with Mg2+ inducing the greatest chain disorder followed by Ca2+ and then Sr2+. An increase in chain disorder would increase the bilayer fluidity. Such a phenomenon may prove relevant to the changes observed in the sperm plasma membrane during fertilization-related events.
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Affiliation(s)
- S Tupper
- Human IVF Labs, Reproductive Biology Unit, Loeb Research Institute, Ottawa Civic Hospital, Ontario, Canada
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17
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Vos JP, Lopes-Cardozo M, Gadella BM. Metabolic and functional aspects of sulfogalactolipids. BIOCHIMICA ET BIOPHYSICA ACTA 1994; 1211:125-49. [PMID: 8117740 DOI: 10.1016/0005-2760(94)90262-3] [Citation(s) in RCA: 166] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- J P Vos
- Laboratory of Veterinary Biochemistry, Utrecht, The Netherlands
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18
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Mack SR, Zaneveld LJ, Peterson RN, Hunt W, Russell LD. Characterization of human sperm plasma membrane: glycolipids and polypeptides. THE JOURNAL OF EXPERIMENTAL ZOOLOGY 1987; 243:339-46. [PMID: 3655689 DOI: 10.1002/jez.1402430219] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The plasma membranes from ejaculated human spermatozoa were removed by nitrogen cavitation (600 PSI for 10 min) and isolated by centrifugation followed by a discontinuous sucrose density gradient centrifugation. Glycolipid analysis of the plasma membrane revealed a three-fold enrichment in gangliosides: GM3 and GD1a/GD1b and neutral glycolipids: globoside and sulfatide as compared to that of whole human sperm. Two dimensional electrophoresis of human sperm plasma membranes revealed about 75 polypeptides. Several of these polypeptides were similar in migration and in display of shape and color to that found in boar sperm plasma membranes.
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Affiliation(s)
- S R Mack
- Department of Obstetrics/Gynecology, Rush University, Chicago, Illinois 60612
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Narasimhan R, Bennick A, Palmer B, Murray RK. Studies on the glycolipids of human saliva and gastric juice. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)33401-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Lingwood C, Schachter H. Localization of sulfatoxygalactosylacylalkylglycerol at the surface of rat testicular germinal cells by immunocytochemical techniques: pH dependence of a nonimmunological reaction between immunoglobulin and germinal cells. J Cell Biol 1981; 89:621-30. [PMID: 7019217 PMCID: PMC2111819 DOI: 10.1083/jcb.89.3.621] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The synthesis of sulfatoxygalactosylacylalkylglycerol (SGG) is a marker of germinal cell differentiation during spermatogenesis. Antibodies raised against this lipid have been used to visualize SGG on the surfaces of rat spermatocytes and spermatids. An ionic interaction between SGG and immunoglobulin was shown to occur at physiological pH, resulting in high fluorescence backgrounds for control cells treated with nonimmune sera. Immunofluorescence was therefore performed at alkaline pH such that this interaction was much reduced or eliminated. A method was also developed to detect surface-bound complement fixed in the presence of anti-SGG. SGG was found to be mobile within the plane of the membrane, undergoing ligand-induced "patching" and occasional "capping." However, this phenomenon was independent of temperature.
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Abstract
The chemical syntheses of naturally occurring glycolipids derived from sphingosine bases and glycerol derivatives, and the syntheses of polyisoprenoid lipid intermediates and other miscellaneous glycolipids recorded up to the end of 1977 are reviewed.
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Selivonchick DP, Schmid PC, Natarajan V, Schmid HH. Structure and metabolism of phospholipids in bovine epididymal spermatozoa. BIOCHIMICA ET BIOPHYSICA ACTA 1980; 618:242-54. [PMID: 7378437 DOI: 10.1016/0005-2760(80)90030-2] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Lipid analysis of bovine epididymal spermatozoa showed relatively large amounts of alkylacyl- and alk-1-enylacylglycerols in their choline and ethanol-amine phospholipids and alkylacylglycerol as the major constituent of a glycolipid tentatively identified as a monogalactosyl sulfate. The ether lipids exhibited remarkably simple molecular structures, i.e., the phospholipids had only 16:0 as alkyl and alk-1-enyl groups and their constituent fatty acids were almost exclusively 22:5 (n-6) and 22:6 (n-3). The glycolipid had mainly 16:0 as both alkyl and acyl moieties. In contrast, the diacyl choline and ethanolamine phosphoglycerides exhibited a much more complex fatty acid composition. 1,2-Diacylglycerols were the major nonpolar glycerolipid class and their acyl groups consisted almost exclusively of 14:0, 16:0 and 18:0. Labeled glycerol and dihydroxyacetone added to the incubation medium were readily incorporated into sperm lipids under both aerobic and anaerobic conditions. In each case, diacylcholine phosphoglycerides, diacylglycerols and phosphatidic acid were the major labeled lipids. Distribution of label among the molecular species of diacylglycerols and choline phosphoglycerides resembled somewhat their natural abundance. No radioactivity was found in alkylacyl or alk-1-enylacyl glycerolipids. The ether lipids may provide stable structural components of sperm membrane while the diacyl analogs undergo degradation and resynthesis.
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Narasimhan R, Murray RK. Comparative study of the glycosphingolipids of chicken bursa of Fabricius and of chicken, rat and human thymus. Biochem J 1978; 173:475-82. [PMID: 697731 PMCID: PMC1185801 DOI: 10.1042/bj1730475] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1. The glycosphingolipid compositions of the thymus and bursa of Fabricius of young male chickens were compared. The two tissues were found to contain complex mixtures of both neutral glycosphingolipids and gangliosides. Both tissues contained mono-, di-, tri-, tetra- and penta-glycosylceramides; the pentaglycosylceramide displayed a reaction of identity with authentic Forssman antigen when tested against a specific anti-(Forssman antigen) serum. The ganglioside G(m3) containing N-acetylneuraminic acid was the principle ganglioside of both tissues. 2. The thymus contained appreciable amounts of the simple ganglioside N-acetylneuraminylgalactosylceramide, a compound not found in the bursa. The ganglioside G(d3) (disialohaematoside) was detected in both tissues. 3. Rat and human thymus, like sheep thymus (Narasimhan, Hay, Greaves & Murray (1976) Biochim, Biophys. Acta 431, 578-591), both contained a tetraglycosylceramide species as their most complex neutral glycosphingolipid and possessed little or no Forssman antigen. They also contained a complex mixture of gangliosides. 4. The possible significance of these results is briefly discussed.
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Late spermatocytes from immature rat testis isolation, electron microscopy, lectin agglutinability and capacity for glycoprotein and sulfogalactoglycerolipid biosynthesis. Biochim Biophys Acta Gen Subj 1978. [DOI: 10.1016/0304-4165(78)90267-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kunihiro U, Ineo I, Tamio Y. Glycolipid composition of human testis at different ages and the stereochemical configuration of seminolipid. ACTA ACUST UNITED AC 1977. [DOI: 10.1016/0005-2760(77)90044-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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