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Wu AM, Dudek A, Chen YL. Recognition factors of Dolichos biflorus agglutinin (DBA) and their accommodation sites. Glycoconj J 2023; 40:383-399. [PMID: 37266898 DOI: 10.1007/s10719-023-10118-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/27/2022] [Accepted: 04/20/2023] [Indexed: 06/03/2023]
Abstract
Dolichos biflorus agglutinin (DBA) is one of the well known plant lectins that are widely used in clinical serology to differentiate human blood group A1 and A2 erythrocytes and also applied to glycobiology. However, the knowledge of recognition factors of polyvalent (super) glycotopes in glycans and the roles of functional group and epimer in monosaccharide (sub-monosaccharide recognition factor) have not been well established. The size and shape of the recognition (combining) site of DBA has not been clearly defined. In this study, many importnat recognition factors of DBA-glycan binding were characterized by our established enzyme-linked lectinosorbent (ELLSA) and inhibition assays. The results of these assays showed that the intensity profile of the recognition factors for the major combining site of DBA was expressed by Mass relative potency (Mass R.P.) and shown by decreasing order of high density of polyvalent GalNAcα1 → (super glycotopes, 3.7 × 103) >> the corresponding β anomers >> monomeric GalNAcα1 → related glycotopes (GalNAc as 1.0) >> their GalNAc β-anomers >> Gal (absence of NHCH3CO at carbon-2 of GAlNAc) and GlcNAc (different epimer of Carbon-4 in GalNAc). From the all data available, it is proposed that the combining site of DBA should consist of a small cavity shape as major site and most complementary to monomeric GalNAcα → located at both terminal reducing end (Tn) and nonreducing end of glycan chains, and with a wide and broad area as subsite to accomodate from mono- to tetra-saccharides (GalNAcβ, Galβ1 → 3/4GlcNAc, lFuc1 → 2Galβ1 → 3/4GlcNAc, GalNAcβ1 → 3Galα1 → 4Galβ1 → 4Glc) at the nonreducing side. In this study, it has provided the most (comprehensive) recognition knowledge of DBA-glycan interactions at the factors of glycotope, super glycotope/sub-monosaccharide levels. Thus, it should expand and upgrade the conventional concept of the combining (recognition) site of DBA since 1980s.
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Affiliation(s)
- Albert M Wu
- Glycomics Res, Lab., Institute of Molecular and Cellular Biology, College of Medicine, Chang-Gung University, Kwei-san, Tao-yuan, 33302, Taiwan.
| | - Anna Dudek
- Glycomics Res, Lab., Institute of Molecular and Cellular Biology, College of Medicine, Chang-Gung University, Kwei-san, Tao-yuan, 33302, Taiwan
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-yuan, 333, Taiwan
| | - Yung Liang Chen
- Department of Medical Technology, Yuanpei University, Hsinchu City, 300, Taiwan
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Bashawat M, Braun B, Müller K, Hermann B. Molecular phenotyping of domestic cat ( Felis catus) testicular cells across postnatal development - A model for wild felids. THERIOGENOLOGY WILD 2023; 2:100031. [PMID: 37461433 PMCID: PMC10350788 DOI: 10.1016/j.therwi.2023.100031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Molecular characterisation of testicular cells is a pivotal step towards a profound understanding of spermatogenesis and developing assisted reproductive techniques (ARTs) based on germline preservation. To enable the identification of testicular somatic and spermatogenic cell types in felids, we investigated the expression of five molecular markers at the protein level in testes from domestic cats (Felis catus) at different developmental phases (prepubertal, pubertal I and II, postpubertal I and II) classified by single-cell ploidy analysis. Our findings indicate a prominent co-labelling for two spermatogonial markers, UCHL1 and FOXO1, throughout postnatal testis development. Smaller subsets of UCHL1 or FOXO1 single-positive spermatogonia were also evident, with the FOXO1 single-positive spermatogonia predominantly observed in prepubertal testes. As expected, DDX4+ germ cells increased in numbers beginning in puberty, reaching a maximum at adulthood (post-pubertal phase), corresponding to the sequential appearance of labelled spermatogonia, spermatocytes and spermatids. Furthermore, we identified SOX9+ Sertoli cells and CYP17A1+ Leydig cells in all of the developmental groups. Importantly, testes of African lion (Panthera leo), Sumatran tiger (Panthera tigris sumatrae), Chinese leopard (Panthera pardus japonesis) and Sudan cheetah (Acinonyx jubatus soemmeringii) exhibited conserved labelling for UCHL1, FOXO1, DDX4, SOX9 and CYP17A1. The present study provides fundamental information about the identity of spermatogenic and somatic testicular cell types across felid development that will be useful for developing ART approaches to support endangered felid conservation.
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Affiliation(s)
- M. Bashawat
- Department of Biology, Humboldt University of Berlin, Invalidenstr. 42, D-10115 Berlin, Germany
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, D-10315 Berlin, Germany
| | - B.C. Braun
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, D-10315 Berlin, Germany
| | - K. Müller
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, D-10315 Berlin, Germany
| | - B.P. Hermann
- Department of Neuroscience, Developmental and Regenerative Biology, The University of Texas at San Antonio, San Antonio, TX 78249, USA
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Valdivia M, Castañeda-Zegarra S, Lévano G, Lazo J, Reyes J, Bravo Z, Santiani A, Mujica F, Ruíz J, Gonzales GF. Spermatogonial stem cells identified by molecular expression of PLZF, integrin β1 and reactivity to Dolichos biflorus agglutinin in alpaca adult testes. Andrologia 2019; 51:e13283. [PMID: 30957907 DOI: 10.1111/and.13283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/21/2019] [Accepted: 03/08/2019] [Indexed: 12/13/2022] Open
Abstract
The identification system of spermatogonial stem cell (SSC) was established in alpaca using the molecular expression as well as the reactivity pattern to Dolichos biflorus agglutinin (DBA) by flow cytometry. Twenty-four testicles with their epididymis were recovered from adult alpacas at the slaughterhouse of Huancavelica-Perú. Samples were transported to the Laboratory of Reproductive Physiology at Universidad Nacional Mayor de San Marcos. Testes were selected for our study when the progressive motility of epididymal spermatozoa (ESPM) was above 30%. Isolation of SSC was performed with two enzymatic digestions. Finally, sperm viability was evaluated by means of the trypan blue vital stain in spermatogonial round cells. Samples with more than 80% viability were selected. Isolated cells cultured for 2 days were used for identifying the presence of SSCs by the expression of integrin β1 (116 bp) and PLZF (206 bp) genes. Spermatogonia were classified according to the DBA reactivity. Spermatogonia with a strong positive to DBA (sDBA+ ) were classified as SSC (Mean ± SEM=4.44 ± 0.68%). Spermatogonia in early differentiation stages stained weakly positive with DBA (wDBA+ ) (Mean ± SEM=37.44 ± 3.07%) and differentiated round cells as DBA negative (Mean ± SEM=54.12 ± 3.18%). With the use of molecular and DBA markers, it is possible to identify easily the spermatogonial stem cells in alpaca.
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Affiliation(s)
- Martha Valdivia
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú.,Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Sergio Castañeda-Zegarra
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Gloria Lévano
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Jorge Lazo
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Jhakelin Reyes
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Zezé Bravo
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Alexei Santiani
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Fidel Mujica
- Biological Sciences Faculty, Universidad Nacional San Cristóbal de Huamanga, Ayacucho, Perú
| | - Jaime Ruíz
- Laboratory of Reproductive Biotechnology, Faculty of Engineering Sciences, Universidad Nacional de Huancavelica, Huancavelica, Perú
| | - Gustavo F Gonzales
- Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
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Valdivia M, Reyes J, Bravo Z, Cancho C, Castañeda S, Limaymanta O, Woll P, Santiani A, Gonzales GF. In vitro culture of spermatogonial stem cells isolated from adult alpaca (Vicugna pacos) testes analysed with Dolichos biflorus by flow cytometry. Andrologia 2019; 51:e13269. [PMID: 30900308 DOI: 10.1111/and.13269] [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: 01/02/2019] [Revised: 02/11/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023] Open
Abstract
Spermatogonial stem cell (SSC) is known for its self-renewal capacity. We have studied the in vitro proliferation of isolated SSC from adult alpaca (Vicugna pacos) testes. A total of 107 samples were evaluated of which 31 were evaluated at baseline, 36 were cultivated in DMEM and 40 in STEMPRO media. Half of the cultivated samples was analysed after 14 days, and the rest after 21 days. Round cell subpopulations were identified with FITC-DBA by flow cytometry: strongly positive DBA (sDBA+) as SSC, weakly positive DBA (wDBA+) as in early differentiation and negative DBA as differentiated. At the beginning, 4.16% of the cells were SSC, 37.61% wDBA+ while 54.12% were DBA-. After 14 days, 42.28% of SSC, 44.68% wDBA+ and 11.07% DBA- were found in DMEM while 47.09% of SSC, 32.57% wDBA+ and 18.48% DBA- in STEMPRO. After 21 days 38.66% were SSC, 52.78% wDBA and 7.65% DBA- in DMEM and on STEMPRO media 47.92% SSC, 44.20% wDBA+, 4.93% DBA-. There is a significant difference between the number of initial and SSC cultivated, as well as between DBA- (p < 0.05), while there is no significant difference between the wDBA+ (p > 0.05). Our results suggest that both culture media are appropriate for the in vitro proliferation of alpacas SSC.
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Affiliation(s)
- Martha Valdivia
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú.,Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Jhakelin Reyes
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Zezé Bravo
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Christian Cancho
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Sergio Castañeda
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Orlando Limaymanta
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Patricia Woll
- Biochemical Laboratory, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Alexei Santiani
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Gustavo F Gonzales
- Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
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Silva AF, Escada-Rebelo S, Amaral S, Tavares RS, Schlatt S, Ramalho-Santos J, Mota PC. Can we induce spermatogenesis in the domestic cat using an in vitro tissue culture approach? PLoS One 2018; 13:e0191912. [PMID: 29414992 PMCID: PMC5802888 DOI: 10.1371/journal.pone.0191912] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 01/12/2018] [Indexed: 11/18/2022] Open
Abstract
The reduced number of animals in most wild felid populations implies a loss of genetic diversity. The death of juveniles, prior to the production of mature sperm, represents a loss of potential genetic contribution to future populations. Since 2011 mouse testicular organ culture has introduced an alternative mechanism to produce sperm in vitro from immature tissue. However, extension of this technology to other species has remained limited. We have used the domestic cat (Felis catus) as a model for wild felids to investigate spermatogenesis initiation and regulation, with the mouse serving as a control species. Testicular tissue fragments were cultured in control medium or medium supplemented with knockout serum replacement (KSR), AlbuMax, beta-estradiol or AlbuMax plus beta-estradiol. Contrary to expectations, and unlike results obtained in mouse controls, no germ cell differentiation could be detected. The only germ cells observed after six weeks of culture were spermatogonia regardless of the initial stage of tubule development in the donor tissue. Moreover, the number of spermatogonia decreased with time in culture in all media tested, especially in the medium supplemented with KSR, while AlbuMax had a slight protective effect. The combination of AlbuMax and beta-estradiol led to an increase in the area occupied by seminiferous tubules, and thus to an increase in total number of spermatogonial cells. Considering all the media combinations tested the stimulus for felid germ cell differentiation in this type of system seems to be different from the mouse. Studies using other triggers of differentiation and tissue survival factors should be performed to pursue this technology for the genetic diversity preservation in wild felids.
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Affiliation(s)
- Andreia F. Silva
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Sara Escada-Rebelo
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Sandra Amaral
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Renata S. Tavares
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Stefan Schlatt
- Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University of Münster, Münster, Germany
| | - João Ramalho-Santos
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Paula C. Mota
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
- * E-mail:
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Park HJ, Lee R, Lee WY, Kim JH, Do JT, Park C, Song H. Stage-specific expression of Sal-like protein 4 in boar testicular germ cells. Theriogenology 2017; 101:44-52. [DOI: 10.1016/j.theriogenology.2017.05.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/29/2017] [Accepted: 05/29/2017] [Indexed: 12/23/2022]
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