1
|
de Jesus Nascimento AE, Santos LC, Santos BR, Santos EO, Cunha MCDSG, Snoeck PPDN, de Lavor MSL, Silva JF. Spatial and temporal expression profile of sex steroid receptors and antioxidant enzymes in the maternal-fetal interface of domestic cats. Theriogenology 2023; 210:234-243. [PMID: 37542738 DOI: 10.1016/j.theriogenology.2023.08.001] [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: 06/08/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023]
Abstract
Sex steroids and antioxidant enzymes modulate uterine and placental physiology. Failures in the expression, signaling, and/or secretion of these mediators are associated with female infertility and gestational problems. However, there is no data on the expression profile of receptors for sex steroids and antioxidant enzymes in the maternal-fetal interface of domestic cats. Uterus and placenta samples from non-pregnant diestrus cats and cats in mid- and late pregnancy were used to analyze the protein and gene expression of the receptors for estrogen alpha (ERα), progesterone (PR), and androgen (AR) and the antioxidant enzymes superoxide dismutase 1 (SOD1), catalase, and glutathione peroxidase 1 (GPX1) by immunohistochemistry and qPCR. Higher uterine expression of ERα, Pr, and Sod1 was observed in the pregnant cats, especially in mid-pregnancy, compared to non-pregnant diestrus cats, as well as reduced endometrial catalase immunostaining. In the placenta, the mRNA expression of Erα, Pr, Ar, and Gpx1 was higher in late pregnancy in relation to mid-pregnancy. Moreover, weak or no placental expression was observed for catalase in mid- and late pregnancy, while strong immunostaining was observed for AR in trophoblasts and decidual cells in mid-pregnancy. The findings of this study demonstrated that pregnancy in female cats increases the uterine expression of sex steroid receptors and antioxidant enzymes, and that the placental expression of these mediators varies according to gestational age.
Collapse
Affiliation(s)
- Acácia Eduarda de Jesus Nascimento
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Luciano Cardoso Santos
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Bianca Reis Santos
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Emilly Oliveira Santos
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Maria Clara da Silva Galrão Cunha
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Paola Pereira das Neves Snoeck
- Hospital Veterinário, Departamento de Ciências Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Mário Sérgio Lima de Lavor
- Hospital Veterinário, Departamento de Ciências Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil
| | - Juneo Freitas Silva
- Centro de Microscopia Eletrônica, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, 45662-900, Ilhéus, Brazil.
| |
Collapse
|
2
|
Santos LC, Silva JF. Molecular Factors Involved in the Reproductive Morphophysiology of Female Domestic Cat ( Felis catus). Animals (Basel) 2023; 13:3153. [PMID: 37835759 PMCID: PMC10571923 DOI: 10.3390/ani13193153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 10/15/2023] Open
Abstract
The domestic cat (Felis catus) is considered an important model for the study of feline reproductive morphophysiology. However, although the morphological changes and clinical signs that occur during the estrous cycle and pregnancy are well known, little is known about the molecular mechanisms involved in the reproductive physiology of this animal species. Thus, this paper reviews the current knowledge about the modulation and expression profile of hormonal, immunological, redox, and growth mediators involved in the uterine, ovarian, and placental morphophysiology of domestic cats.
Collapse
Affiliation(s)
| | - Juneo Freitas Silva
- Nucleo de Pesquisas em Reproducao e Endocrinologia, Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus 45662-900, Brazil;
| |
Collapse
|
3
|
Hryciuk MM, Schröter F, Hennicke L, Braun BC. Spheroid formation and luteinization of granulosa cells of felids in a long-term 3D culture. Differentiation 2023; 131:38-48. [PMID: 37079952 DOI: 10.1016/j.diff.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/22/2023]
Abstract
In the present study, granulosa cells (GCs) from domestic cats and Persian leopard were cultured and characterized from selected days. The culture period was divided into two phases: maintenance, which lasted for 7 days, and luteinization, which followed for up to 11 days. Luteinization was performed on ultra-low attachment plates, supporting the formation of spheroids in a medium supplemented with insulin, forskolin, and luteinizing hormone (LH). GCs of domestic cat produced estradiol (E2) and progesterone (P4) during the maintenance phase. The gene expressions of some proteins involved in steroidogenesis were stable (STAR, HSD3B1) or decreased over time (CYP11A1, HSD17B1, CYP17A1, and CYP19A1), which was similar to the expressions of gonatropin receptors (LHCGR and FSHR). During the luteinization phase, P4 concentration significantly increased (P < 0.05), and E2, in contrast to the proliferation phase, was below detection range. The expression of genes of proteins involved in steroidogenesis (STAR, CYP11A1, HSD3B1, HSD17B1, CYP17A1, and CYP19A1) and of gonadotropin receptors (LHCGR and FSHR) significantly increased during the luteinization period, but some expressions exhibited a decrease at the end of the phase (LHCGR, FSHR, HSD17B1, CYP19A1). The morphology of the luteinized GCs of domestic cat resembled large luteal cells and had numerous vacuole-like structures. Also, the GCs of Persian leopard underwent luteinization, shown by increasing P4 production and HSD3B1 expression. This study confirms that GCs from felids can be luteinized in a 3D spheroid system which can be a basis for further studies on luteal cell function of felids. Additionally, we could show that the domestic cat can serve as a model species for establishing cell culture methods which can be transferred to other felids.
Collapse
Affiliation(s)
- Michał M Hryciuk
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, 10315, Berlin, Germany.
| | - Filip Schröter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Brandenburg Medical School, 16321, Bernau, Germany; Brandenburg Medical School, Faculty of Health Sciences Brandenburg, 14770, Brandenburg, Germany
| | - Luise Hennicke
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, 10315, Berlin, Germany
| | - Beate C Braun
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, 10315, Berlin, Germany
| |
Collapse
|
4
|
Vercellini R, Blanco PG, Arizmendi A, Diez M, Rodríguez R, Gobello C. Ovarian and uterine two-dimensional and Doppler ultrasonographic changes in the feline peri-estrus period. J Feline Med Surg 2022; 24:1053-1059. [PMID: 34915765 PMCID: PMC10812312 DOI: 10.1177/1098612x211067016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate two-dimensional and Doppler ultrasonographic changes of the ovary and uterus during estrus and the early post-estrus period in domestic cats. METHODS Two-dimensional and Doppler ultrasonographic evaluations of the ovaries and uterus were performed in seven queens on days 1, 3 and 5 of estrus, and 5 days after estrus (AE5). RESULTS On day 1, 5.4 ± 0.5 follicles of 2.1 ± 0.1 mm were detected progressively increasing in number and size up to day 5 and then decreased on AE5 (P <0.05). A maximum follicular diameter of 4.1 ± 0.1 mm was achieved on day 5. Both during and after estrus, the uterus was generally hypoechoic compared with the surrounding tissues and delineated by a thin hyperechoic line corresponding to the serosa. In some animals, the uterine layers were distinguished during and after estrus. The blood flow waveforms of the intraovarian and uterine arteries were characterized by a systolic peak and diastolic flow extending throughout the remainder of the cardiac cycle to the next systole. In the uterine artery waveforms, the early diastolic notch was mild or absent during most estrous observations. The resistance index of the intraovarian arteries decreased up to day 5, and then increased on AE5 (P <0.05). The resistance index of the uterine arteries was lower during estrus than in the post-estrus period (P <0.05). CONCLUSIONS AND RELEVANCE It is concluded that in the domestic cat, follicular number and diameter as well as ovarian and uterine blood flow changed during and immediately after estrus. Doppler ultrasound proved suitable to evaluate the hemodynamic changes involved in the cyclic remodeling of ovarian and uterine tissues that occurs during and after follicular growth in domestic cats.
Collapse
Affiliation(s)
- Rosario Vercellini
- Center of Reproductive Physiology and Diagnostic Imaging (CEFIRE & MECODIAG), Faculty of Veterinary Sciences, National University of La Plata (NULP), Argentina
- CONICET, La Plata, Argentina
| | - Paula G Blanco
- Center of Reproductive Physiology and Diagnostic Imaging (CEFIRE & MECODIAG), Faculty of Veterinary Sciences, National University of La Plata (NULP), Argentina
- CONICET, La Plata, Argentina
| | - Analía Arizmendi
- Teaching Hospital, Faculty of Veterinary Sciences (NULP), Argentina
- CONICET, La Plata, Argentina
| | - Marisa Diez
- Teaching Hospital, Faculty of Veterinary Sciences (NULP), Argentina
| | - Raúl Rodríguez
- Center of Reproductive Physiology and Diagnostic Imaging (CEFIRE & MECODIAG), Faculty of Veterinary Sciences, National University of La Plata (NULP), Argentina
- Teaching Hospital, Faculty of Veterinary Sciences (NULP), Argentina
| | - Cristina Gobello
- Center of Reproductive Physiology and Diagnostic Imaging (CEFIRE & MECODIAG), Faculty of Veterinary Sciences, National University of La Plata (NULP), Argentina
- CONICET, La Plata, Argentina
| |
Collapse
|
5
|
Blank MH, Adania CH, Swanson WF, de Souza Ramos Angrimani D, Nichi M, Alcindo de Barros Vaz Guimarães M, Barnabe RC. Comparative fecal steroid profile during pregnancy, parturition, and lactation between natural fertilization and embryo transfer in ocelots (Leopardus pardalis). Theriogenology 2022; 182:26-34. [DOI: 10.1016/j.theriogenology.2022.01.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 12/31/2022]
|
6
|
Braun BC, Jewgenow K. Role of sex steroids and prostaglandins during the luteal life cycle in domestic cats and lynxes. Domest Anim Endocrinol 2022; 78:106689. [PMID: 34688216 DOI: 10.1016/j.domaniend.2021.106689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/07/2021] [Accepted: 09/22/2021] [Indexed: 11/20/2022]
Abstract
Although lynxes and domestic cats are both felids, their luteal life cycles differ. As in many species, corpora lutea (CLs) of domestic cats regress after pregnancy or pseudopregnancy. By contrast, CLs of lynxes do not functionally regress following the cycle of their formation. They stay physiologically active and persist for several years. To obtain an improved understanding of the life cycle of both species, we comparatively studied the CLs of these species in detail. In this review, we summarize the similarities and differences of their CLs regarding sex steroid and prostaglandin generation and receptors. The most evident differences were visible in the CLs of lynxes, which persist from previous cycles, compared with CLs of lynxes and domestic cats from the recent luteal cycle. We assume that these differences could indicate processes ensuring long-term luteal survival and functionality, for example, by high estrogen production/metabolism or by antioxidative effects.
Collapse
Affiliation(s)
- B C Braun
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, 10315, Berlin, Germany.
| | - K Jewgenow
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, 10315, Berlin, Germany
| |
Collapse
|
7
|
Santos LC, Dos Anjos Cordeiro JM, Santana LDS, Barbosa EM, Santos BR, da Silva TQM, de Souza SS, Corrêa JMX, Lavor MSL, da Silva EB, Silva JF. Expression profile of the Kisspeptin/Kiss1r system and angiogenic and immunological mediators in the ovary of cyclic and pregnant cats. Domest Anim Endocrinol 2022; 78:106650. [PMID: 34399365 DOI: 10.1016/j.domaniend.2021.106650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 11/03/2022]
Abstract
The Kisspeptin/Kiss1r system has been studied in mammalian ovaries. However, there are still no studies on the modulation of this system and its relationship with angiogenic and immunological mediators in the ovary of domestic cats, especially during pregnancy. We evaluated the expression of Kisspeptin/Kiss1r and angiogenic and immunological mediators during folliculogenesis, luteogenesis and luteal regression of cyclic and pregnant cats. The ovary exhibited moderate to intense expression for Kiss1, VEGF, Flk-1, INFγ and MIF in oocytes and the follicular wall, while Kiss1r expression was low in granulosa cells. In these cells, there was also a greater expression of Kiss1, INFγ and MIF, mainly in secondary follicles, while tertiary and preovulatory follicles exhibited greater expression of VEGF and Flk-1 in this layer. In luteogenesis, Kiss1 immunostaining was higher in mature corpora lutea (MCL) of pregnant cats compared to vacuolated CL (VCL) and corpus albicans (CA). Pregnancy also increased the luteal gene expression of Kiss1 as well as Kiss1, Kiss1r, Flk-1, and MIF immunostaining in MCL, while reduced the area of VEGF expression in VCL and luteal mRNA expression of Mif when compared to non-pregnant animals. In addition, positive gene correlation between Kiss1r and Mif was observed in the CL. Kiss1, Kiss1r, Vegf and Mif expression were lower in the CA of cats in anestrus. These findings reveal that the expression of Kisspeptin/Kiss1r and angiogenic and immunological mediators, in the ovary of domestic cats, depend on the follicular and luteal stage, and the luteal expression of these mediators is influenced by pregnancy.
Collapse
Affiliation(s)
- Luciano Cardoso Santos
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | | | - Larissa da Silva Santana
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Erikles Macêdo Barbosa
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Bianca Reis Santos
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Thayná Queiroz Menezes da Silva
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Sophia Saraiva de Souza
- Department of Agricultural Sciences, Hospital Veterinario, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Janaina Maria Xavier Corrêa
- Department of Agricultural Sciences, Hospital Veterinario, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Mário Sergio Lima Lavor
- Department of Agricultural Sciences, Hospital Veterinario, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Elisângela Barboza da Silva
- Department of Agricultural Sciences, Hospital Veterinario, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil
| | - Juneo Freitas Silva
- Department of Biological Sciences, Centro de Microscopia Eletronica, Universidade Estadual de Santa Cruz, 45662-900, Ilheus, Brazil.
| |
Collapse
|
8
|
Binder C, Aurich J, Scarlet D, Reichart U, Walter I, Aurich C. Expression of nuclear progesterone receptor, progesterone receptor membrane components 1 and 2 and prostaglandin-endoperoxide synthase 2 in the endometrium and oviduct of spontaneously ovulating cats. Theriogenology 2021; 172:200-206. [PMID: 34271496 DOI: 10.1016/j.theriogenology.2021.06.017] [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: 07/16/2020] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/25/2022]
Abstract
Although ovulations not followed by pregnancy occur regularly in cats, differences in endometrial function between cats in the luteal and non-luteal phase have not been studied so far. Progesterone exerts its effects through a nuclear progesterone receptor (PGR) and via cell-membrane bound receptors referred to as progesterone receptor membrane component (PGRMC) 1 and 2. Progesterone receptor expression is regulated by gonadal steroid hormones and therefore may change throughout the oestrous cycle. Protein expression of PGR, PGRMC-1 and 2 and prostaglandin-endoperoxide synthase 2 (PTGS2) was analysed in the endometrium and oviduct of non-pregnant female cats in the follicular (n = 8) and luteal phase (n = 9). We hypothesized that the presence of corpora lutea (CL) is associated with downregulation of progesterone receptors and PTGS2. Cells of the luminal endometrial epithelium, endometrial stroma and oviductal epithelium were assessed by immunohistochemistry. The PGR protein expression was more pronounced in the endometrial epithelium than stroma (p < 0.001) and less pronounced in cats with a CL than without CL (p < 0.001) but did not differ between groups in the oviduct. The PTGS2 was localized only in the endometrial and oviductal epithelium and its expression was reduced in cats with CL (p = 0.001). In the endometrial epithelium, PGRMC-1 expression was reduced in cats with CL (p < 0.05). Expression of PGRMC-2 was highest in the endometrial epithelium and lowest in the endometrial stroma (p = 0.01) but did not differ between cats with and without CL. In conclusion, progesterone receptor and PTGS2 downregulation in the female cat closely resembles findings in other spontaneously ovulating domestic animal species.
Collapse
Affiliation(s)
- C Binder
- Obstetrics and Reproduction, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria.
| | - J Aurich
- Obstetrics and Reproduction, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria
| | - D Scarlet
- Obstetrics and Reproduction, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria
| | - U Reichart
- VetCore Facility for Research, Vetmeduni Vienna, Vienna, Austria
| | - I Walter
- VetCore Facility for Research, Vetmeduni Vienna, Vienna, Austria; Institute of Pathology, Department for Pathobiology, Vetmeduni Vienna, Vienna, Austria
| | - C Aurich
- Artificial Insemination and Embryo Transfer, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria
| |
Collapse
|
9
|
Santos LC, Dos Anjos Cordeiro JM, da Silva Santana L, Santos BR, Barbosa EM, da Silva TQM, Corrêa JMX, Niella RV, Lavor MSL, da Silva EB, de Melo Ocarino N, Serakides R, Silva JF. Kisspeptin/Kiss1r system and angiogenic and immunological mediators at the maternal-fetal interface of domestic cats. Biol Reprod 2021; 105:217-231. [PMID: 33774655 DOI: 10.1093/biolre/ioab061] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/09/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023] Open
Abstract
The Kisspeptin/Kiss1r system is a key regulator of reproduction by stimulating gonadotrophin-releasing hormone and luteinizing hormone release, and in vitro studies have shown that Kisspeptin can modulate angiogenesis and immune function, factors that are also essential for reproduction However, there are no studies on the expression of Kisspeptin/Kiss1r at the maternal-fetal interface in domestic cats and its relationship with angiogenic and immunological mediators. Thus, our objective was to evaluate the spatiotemporal expression profile of Kisspeptin/Kiss1r and angiogenic and immunological mediators in the uterus and placenta of domestic cats during pregnancy. Uterus and placenta samples were collected from cats in mid pregnancy (N = 6) and late pregnancy (N = 6), in addition to uterus from non-pregnant cats in diestrus (N = 7), to evaluate protein and gene expression of kisspeptin (Kiss1), kisspeptin receptor (Kiss1r), vascular endothelial growth factor (VEGF), tyrosine kinase receptor (Flk-1), placental growth factor (PLGF), interferon gamma (INFγ), migration inhibiting factor (MIF), tumor necrosis factor (TNFα), interleukins (IL6 and IL10) by immunohistochemistry and quantitative polymerase chain reaction. Pregnancy increased the uterine expression of Kiss1 and Kiss1r, especially at the late pregnancy, in addition to upregulating INFy, MIF, Vegf, Il10, and Tnf and downregulating Plgf. Higher placental expression of Kiss1r and Plgf mRNA occurred at the late pregnancy, while the expression of Kiss1, VEGF, Flk-1, INFy, TNFα, Il6, and IL10 was higher in the mid of pregnancy. A positive correlation between Kiss1 and Tnf was observed in the placenta, while Kiss1r had a negative correlation with Infγ, Il6, and Il10. The findings reveal that Kisspeptin/Kiss1r and angiogenic and immunological mediators at the maternal-fetal interface of pregnant cat have a gene correlation and are modulated by the gestational age. These data suggest possible functional links of Kisspeptin in placental angiogenesis and immunology.
Collapse
Affiliation(s)
- Luciano Cardoso Santos
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Jeane Martinha Dos Anjos Cordeiro
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Larissa da Silva Santana
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Bianca Reis Santos
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Erikles Macêdo Barbosa
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Thayná Queiroz Menezes da Silva
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Janaina Maria Xavier Corrêa
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Raquel Viera Niella
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Mário Sergio Lima Lavor
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Elisângela Barboza da Silva
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Natália de Melo Ocarino
- Departamento de Clinica e Cirurgia Veterinarias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rogéria Serakides
- Departamento de Clinica e Cirurgia Veterinarias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juneo Freitas Silva
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| |
Collapse
|
10
|
Hryciuk MM, Jewgenow K, Braun BC. Luteinizing Hormone Effect on Luteal Cells Is Dependent on the Corpus Luteum Stage in Felids. Animals (Basel) 2021; 11:ani11010179. [PMID: 33466590 PMCID: PMC7828684 DOI: 10.3390/ani11010179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/08/2021] [Indexed: 12/22/2022] Open
Abstract
Simple Summary The corpus luteum is a transient endocrine gland on the mammalian ovary, and its main function is to produce progesterone. Knowledge about the corpus luteum in felids is very limited and luteolytic and luteotrophic factors which regulate its maintenance and regression are not extensively studied. Information about corpus luteum function is needed to understand breeding strategies and to successfully implement assisted reproductive techniques for felids, of which most of the species are threatened. The aim of this study was to reveal the effect of luteinizing hormone on cultured luteal cells from corpora lutea obtained from selected felids and to investigate the protein expression of steroidogenic enzyme 3β-hydroxysteroid dehydrogenase by immunohistology. Abstract The objective of this study was to investigate the effect of luteinizing hormone (LH) on steroidogenic luteal cells obtained from corpora lutea (CL) of the domestic cat and selected wild felids. Luteal cells were isolated enzymatically from CL at different developmental stages and cultured for two days in the presence and absence of 100 ng/mL LH, respectively. Functionality was assessed by progesterone (P4) accumulation in cell culture media determined by ELISA. In addition, steroidogenic function was confirmed using immunohistochemistry for 3β-hydroxysteroid dehydrogenase (HSD3B). The enzymatic method allowed for the isolation of mostly small luteal cells in all investigated felids. Treatment with LH resulted in an increase in P4 secretion of cultured luteal cells obtained from CL in the formation stage (African lion) and development/maintenance stage (domestic cat (p < 0.05), Javan leopard), whereas luteal cells from more advanced stages of luteal development (regression) responded moderately or not at all to LH stimulation (domestic cat, Asiatic golden cat, Asiatic lion). The protein signal for HSD3B on CL was visible until development/maintenance. In conclusion, this study shows that LH promotes P4 production in luteal cells only until the onset of regression, when morphological signs are visible on the CL of felids and HSD3B is no longer detectable.
Collapse
|
11
|
Santos LC, Dos Anjos Cordeiro JM, da Silva Santana L, Santana LR, Santos BR, Barbosa EM, da Silva TQM, Corrêa JMX, Lavor MSL, da Silva EB, de Melo Ocarino N, Serakides R, Silva JF. Pyometra and estrous cycle modulate the uterine expression of the kisspeptin system and angiogenic and immune factors in cats. Biol Reprod 2020; 104:548-561. [PMID: 33348359 DOI: 10.1093/biolre/ioaa229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/26/2020] [Accepted: 12/14/2020] [Indexed: 12/16/2022] Open
Abstract
Failures in hypothalamic kisspeptin/Kiss1r signaling are associated with infertility, and in vitro studies have shown that kisspeptin can modulate angiogenesis and immune activity. Because there is no in vivo research on the functional relationship between these factors in the reproductive system, especially in domestic cats, we evaluated the expression profile of kisspeptin/Kiss1r and angiogenic and immunological mediators in the genital tract of cyclic cats and of those with pyometra. The uterus of cats in diestrus exhibited greater gene and protein expression of Kiss1, as well as Vegf, Pigf, Mif, and Il6. In contrast, Kiss1r presented greater expression in proestrus/estrus, similarly to that observed for the immunostaining of INFγ, MIF, TNFα, and IL10. These factors were positively correlated with Kiss1 and/or Kiss1r, and a positive correlation between Kiss1 and Kiss1r was also observed in the uterus of cats during the estrous cycle. Cats with pyometra showed greater immunostaining of Kiss1 and Kiss1r on the endometrial surface and reduced immunostaining of Kiss1 in deep glands, whereas there was a significant reduction in Vegf, Pigf, Mif, and Il6 mRNA, and an increase in Tnf mRNA. The findings reveal that there is a gene correlation between kisspeptin/Kiss1r and angiogenic and immune mediators in the uterus of the domestic cat, which is modulated by the estrous cycle, and that pyometra affects the expression of these mediators. This study suggests, for the first time, a functional relationship between the Kiss/Kiss1r system and angiogenic and immune mediators in the female genital tract.
Collapse
Affiliation(s)
- Luciano Cardoso Santos
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Jeane Martinha Dos Anjos Cordeiro
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Larissa da Silva Santana
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Larissa Rodrigues Santana
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Bianca Reis Santos
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Erikles Macêdo Barbosa
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Thayná Queiroz Menezes da Silva
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Janaina Maria Xavier Corrêa
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Mário Sergio Lima Lavor
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Elisângela Barboza da Silva
- Hospital Veterinario, Departamento de Ciencias Agrarias e Ambientais, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| | - Natália de Melo Ocarino
- Departamento de Clinica e Cirurgia Veterinarias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rogéria Serakides
- Departamento de Clinica e Cirurgia Veterinarias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juneo Freitas Silva
- Centro de Microscopia Eletronica, Departamento de Ciencias Biologicas, Universidade Estadual de Santa Cruz, Campus Soane Nazare de Andrade, Ilheus, Brazil
| |
Collapse
|
12
|
Karakas Alkan K, Alkan H, Tez G, Kanca H. Aglepristone and cloprostenol combination in the termination of late-term pregnancy in queens. J Feline Med Surg 2020; 22:907-915. [PMID: 31833792 PMCID: PMC10814403 DOI: 10.1177/1098612x19892087] [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] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Termination rates for the highly recommended aglepristone (AGL) treatment are low in late-term pregnancy in queens. We studied the effects of an AGL and cloprostenol (CLO) combination in the termination of late-term pregnancy. METHODS Pregnant queens were assigned to two groups. Queens in the AGL group (n = 10) received AGL 10 mg/kg, twice, 24 h apart. Queens in the AGL-CLO group (n = 9) were additionally injected with a single dose of CLO (5 μg/kg) 24 h after the second dose of AGL. Progesterone, 17beta(β)-oestradiol, cortisol, oxytocin and prostaglandin F2alpha (PGF2α) metabolite were measured in sera obtained at days 0, 1 and 2, and on the day of abortion. RESULTS Average gestational age in both groups was similar (AGL 38.61 ± 0.91 days vs AGL-CLO 39.39 ± 1.35 days; P >0.05). Termination rates were 80% and 100% in the AGL and AGL-CLO groups, respectively (P <0.05). Fetal expulsion time was significantly longer (P <0.001) in the AGL group (96.9 ± 6 h) compared with the AGL-CLO group (69.8 ± 3.3 h). Duration of abortion was 19.8 ± 2.6 h and 12.6 ± 1.4 h in the AGL and AGL-CLO groups, respectively (P <0.05). Both treatments were well tolerated. Significantly (P <0.05) lower serum progesterone concentrations were observed in both groups at the day of abortion and concentrations in the AGL-CLO group (4.19 ± 0.80 ng/ml) were lower than in the AGL group (9.89 ± 2.21 ng/ml; P <0.05). CONCLUSIONS AND RELEVANCE AGL and CLO combination increases pregnancy termination rate in late-term pregnant queens. In addition, CLO contributes to a decrease in luteal function in AGL-treated late-term pregnant queens.
Collapse
Affiliation(s)
- Kubra Karakas Alkan
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Hasan Alkan
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | - Gizem Tez
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Halit Kanca
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| |
Collapse
|
13
|
Hyndman TH, Algar KL, Woodward AP, Coiacetto F, Hampton JO, Nickels D, Hamilton N, Barnes A, Algar D. Estradiol-17β Pharmacokinetics and Histological Assessment of the Ovaries and Uterine Horns following Intramuscular Administration of Estradiol Cypionate in Feral Cats. Animals (Basel) 2020; 10:ani10091708. [PMID: 32967219 PMCID: PMC7552719 DOI: 10.3390/ani10091708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/13/2020] [Accepted: 09/17/2020] [Indexed: 01/25/2023] Open
Abstract
Simple Summary Feral cats (Felis catus) have a devastating impact on Australian native fauna. Several programs exist to control their numbers through lethal removal, using tools such as baiting with toxins. Adult male cats are especially difficult to control. We hypothesized that one way to capture these male cats is to lure them using female cats. As female cats are seasonal breeders, a method is needed to artificially induce reproductive (estrous) behavior so that they could be used for this purpose year-round (i.e., regardless of season). Estrogens can be given to cats to induce estrous behavior, but it is not known for how long this elevates the blood concentrations of estradiol. Following the administration of a long-acting estrogen, estradiol cypionate, to nine captive feral cats, blood estrogen concentrations remained elevated for several days. This information will be useful to ongoing studies that are investigating ways to reduce the abundance of feral cats in Australia, especially adult male cats. Abstract The control of feral cats (Felis catus) in Australia is a key biological conservation issue. Male cats are more difficult to control than female cats. Collared and tagged female cats displaying estrous behavior have been considered as a way to lure male cats and reveal their locations. As female cats are seasonal breeders, artificial induction of estrous behavior following the administration of a long-acting estrogen could improve their use for this purpose. Estradiol cypionate was intramuscularly administered to nine entire non-pregnant female feral cats, of unknown estrous status, at 0.1, 0.3, or 0.5 mg/kg. Mean peak serum concentrations of estradiol-17β were 365 pg/mL (0.1 mg/kg), 1281 pg/mL (0.3 mg/kg), and 1447 pg/mL (0.5 mg/kg). The time-course of estradiol-17β concentrations after various doses of estradiol cypionate was assessed using non-compartmental and non-linear mixed-effects methods. At the highest-studied dose (0.5 mg/kg), the 50th percentile of estradiol-17β concentrations exceeded 0.1 ng/mL for 11.8 days, and 0.05 ng/mL for 14.6 days. The duration increased with increasing dose. No signs of toxicity were noticed in any cat during the study. This information will be useful to ongoing studies that are investigating ways to reduce the abundance of feral cats in Australia, especially adult male cats.
Collapse
Affiliation(s)
- Timothy H. Hyndman
- School of Veterinary Medicine, Murdoch University, Murdoch 6150, Australia; (K.L.A.); (F.C.); (J.O.H.); (A.B.)
- Correspondence:
| | - Kelly L. Algar
- School of Veterinary Medicine, Murdoch University, Murdoch 6150, Australia; (K.L.A.); (F.C.); (J.O.H.); (A.B.)
| | - Andrew P. Woodward
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne 3030, Australia;
| | - Flaminia Coiacetto
- School of Veterinary Medicine, Murdoch University, Murdoch 6150, Australia; (K.L.A.); (F.C.); (J.O.H.); (A.B.)
| | - Jordan O. Hampton
- School of Veterinary Medicine, Murdoch University, Murdoch 6150, Australia; (K.L.A.); (F.C.); (J.O.H.); (A.B.)
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne 3030, Australia;
| | | | - Neil Hamilton
- Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre 6983, Australia; (N.H.); (D.A.)
| | - Anne Barnes
- School of Veterinary Medicine, Murdoch University, Murdoch 6150, Australia; (K.L.A.); (F.C.); (J.O.H.); (A.B.)
| | - David Algar
- Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre 6983, Australia; (N.H.); (D.A.)
| |
Collapse
|
14
|
Braun BC, Halaski N, Painer J, Krause E, Jewgenow K. The antioxidative enzyme SOD2 is important for physiological persistence of corpora lutea in lynxes. Sci Rep 2020; 10:3681. [PMID: 32111948 PMCID: PMC7048870 DOI: 10.1038/s41598-020-60634-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/22/2020] [Indexed: 01/27/2023] Open
Abstract
Corpora lutea (CL) are transient endocrine glands supporting pregnancy by progesterone production. They develop at the site of ovulation from the remaining follicle, are highly metabolically active and undergo distinct, transformative processes during their lifetime. In contrast to other species, CL of lynxes do not regress at the end of cycle, but remain functionally active (persist) for years. Reactive oxygen species (ROS) and anti-oxidative enzymes are described to be important for the functionality of CL. We examined ten anti-oxidative enzymes in fresh and persistent CL of lynxes as well as in domestic cat CL of different luteal stages. The gene expression profiles, especially those of SOD1 and SOD2, showed some remarkable differences between CL stages during non-pregnant and pregnant cycles of domestic cats and between fresh and persistent CL of lynxes. Lynx gene expression profiles of SODs were confirmed by western blot analysis, immunohistochemistry and activity assays. SOD2 was characterized by a conspicuous high expression and enzyme activity exclusively in persistent CL. We suggest that SOD2 is required to detoxify potential elevated superoxide anion levels by producing H2O2 in the physiologically persistent CL. This product might also act as a signaling molecule, securing the CL from apoptosis and insuring long-term luteal cell survival.
Collapse
Affiliation(s)
- B C Braun
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany.
| | - N Halaski
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| | - J Painer
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Management, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany.,Veterinary University Vienna, Research Institute for Wildlife Ecology, Savoyenstreet 1, 1160, Vienna, Austria
| | - E Krause
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle-Str. 10, 13125, Berlin, Germany
| | - K Jewgenow
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| |
Collapse
|
15
|
Hryciuk MM, Braun BC, Bailey LD, Jewgenow K. Functional and Morphological Characterization of Small and Large Steroidogenic Luteal Cells From Domestic Cats Before and During Culture. Front Endocrinol (Lausanne) 2019; 10:724. [PMID: 31798529 PMCID: PMC6867973 DOI: 10.3389/fendo.2019.00724] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 10/08/2019] [Indexed: 01/07/2023] Open
Abstract
The current study aimed to isolate, culture and characterize small (SLC) and large (LLC) steroidogenic cells from the corpora lutea (CL) of non-pregnant domestic cats. Isolation of feline SLC was based on an enzymatic digestion of luteal tissue, whereas LLC were obtained by mechanical disruption of CL. To assess function of both cell types, progesterone secretion and mRNA expression of selected genes involved in steroid and prostaglandin synthesis were measured, as well as relative transcript abundance of hormone receptors and anti-oxidative enzymes, before and during culture. The cells were cultured for 3 or 5 days without gonadotropins. Isolated feline SLC and LLC had different sizes (12 ± 3 μm vs. 34 ± 5 μm, respectively), morphologies (amount of lipid droplets) and behaved differently in culture. SLC attached and proliferated or spread quickly, but lost their steroidogenic function during culture (significant decrease in progesterone secretion and expression of steroidogenic genes). The expression of receptors for gonadotropins and prolactin also decreased. Prostaglandin synthase (PTGS2) decreased steadily over time, whereas mRNA expression of PGE2 synthase (PGES) increased. The gene expression of anti-oxidative enzyme glutathione peroxidase 4 (GPX4), also increased during culture, but not of superoxide dismutase 1 (SOD1). In comparison to SLC, LLC did not attach to culture plates, secreted more progesterone per inoculated cells and maintained steroidogenic function during culture. Expression of prostaglandin synthases (PTGS2 and PGES) was almost non-detectable. The gene expression of hormone receptors for prostaglandin F2 alpha (PTGFR), gonadotropins (LHCHR and FSHR), and prolactin (PRLR), as well as of anti-oxidative enzymes (GPX4, SOD1), increased over time. To conclude, we successfully isolated and cultured different types of feline steroidogenic luteal cells and comprehensively characterized both isolated cell types. This knowledge can be used to better understand the CL lifecycle in felines more broadly, and the established cell cultures will provide a foundation for future studies on luteolytic and luteotrophic factors in the domestic cat, and for comparison with other feline species, particularly lynx.
Collapse
Affiliation(s)
- Michał M. Hryciuk
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- *Correspondence: Michał M. Hryciuk
| | - Beate C. Braun
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Liam D. Bailey
- Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Katarina Jewgenow
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| |
Collapse
|
16
|
Progesterone, estrogen, and androgen receptors in the corpus luteum of the domestic cat, Iberian lynx ( Lynx pardinus ) and Eurasian lynx ( Lynx lynx ). Theriogenology 2016; 86:2107-2118. [DOI: 10.1016/j.theriogenology.2016.06.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 12/21/2022]
|
17
|
García Mitacek MC, Bonaura MC, Praderio RG, Nuñez Favre R, de la Sota RL, Stornelli MA. Progesterone and ultrasonographic changes during aglepristone or cloprosternol treatment in queens at 21 to 22 or 35 to 38 days of pregnancy. Theriogenology 2016; 88:106-117. [PMID: 27865408 DOI: 10.1016/j.theriogenology.2016.09.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 09/27/2016] [Accepted: 09/28/2016] [Indexed: 10/20/2022]
Abstract
Progesterone (P4) is a requirement for pregnancy development. Previous reports observed a maximal value of serum P4 concentration on 21 days after the first mating after which it slowly declines throughout the rest of pregnancy. Ultrasound examination should be performed to ensure that pregnancy interruption is complete. Limited information is available on the ultrasonic appearance of conceptuses during pregnancy termination in cats The objective was to study serum P4 concentration and ultrasonographic changes during aglepristone (ALI) or cloprostenol (CLO) treatment and to evaluate the fertility after treatment. Two experiments (EXP) were carried out to accomplish this aim. Sixty queens, 12- to 36-month-old, were used. On Days 21 to 22 of pregnancy (EXP I) or 35 to 38 of pregnancy (EXP II), queens were divided into three groups (G). Queens in G1 received ALI (10 mg/kg, sc; EXP I, n = 10; EXP II, n = 10) for 2 consecutive days. Queens in G2 received CLO (5 μg/kg, sc; EXP I, n = 10; EXP II = 10) for 3 consecutive days. Queens in G3 received 1 mL of saline solution (PLA, sc; EXP I, n = 10; EXP II = 10). Blood samples were taken before treatment (Day 0) and every day during 10 days after the treatment to measure serum P4 concentrations. Likewise, after treatment, queens were monitored daily by ultrasonography for 10 days and weekly until the end of gestation to obtain gestational sacs measurements (GS), fetal measurements, and fetal biophysical profile. Data were analyzed by ANOVA. Serum P4 concentrations were significantly different on Day 6 (EXP I) and on Day 1 (EXP II) in ALI and CLO groups compared with PLA group (P < 0.05 and P < 0.01; respectively). The ultrasonographic monitoring during treatment allowed assessing changes in the GS and fetal measurements, embryo-fetal viability, and risk of pregnancy loss. In conclusion, the results from this study reported changes in serum P4 concentration and in ultrasonography measurements during pregnancy interruption with ALI or CLO treatment. Also it was observed that ALI and CLO are safe drugs and can preserve posttreatment queen fertility. Therefore, the results obtained in our work will be applied in feline reproduction practice.
Collapse
Affiliation(s)
- M C García Mitacek
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina; CONICET, CABA, Capital Federal, Argentina
| | - M C Bonaura
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina; CONICET, CABA, Capital Federal, Argentina
| | - R G Praderio
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina; CONICET, CABA, Capital Federal, Argentina
| | - R Nuñez Favre
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina; CONICET, CABA, Capital Federal, Argentina
| | - R L de la Sota
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina; CONICET, CABA, Capital Federal, Argentina
| | - M A Stornelli
- Catedra y Servicio de Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Argentina.
| |
Collapse
|
18
|
Zschockelt L, Amelkina O, Siemieniuch MJ, Kowalewski MP, Dehnhard M, Jewgenow K, Braun BC. Synthesis and reception of prostaglandins in corpora lutea of domestic cat and lynx. Reproduction 2016; 152:111-26. [DOI: 10.1530/rep-16-0180] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/23/2016] [Indexed: 12/11/2022]
Abstract
Felids show different reproductive strategies related to the luteal phase. Domestic cats exhibit a seasonal polyoestrus and ovulation is followed by formation ofcorpora lutea(CL). Pregnant and non-pregnant cycles are reflected by diverging plasma progesterone (P4) profiles. Eurasian and Iberian lynxes show a seasonal monooestrus, in which physiologically persistent CL (perCL) support constantly elevated plasma P4 levels. Prostaglandins (PGs) represent key regulators of reproduction, and we aimed to characterise PG synthesis in feline CL to identify their contribution to the luteal lifespan. We assessed mRNA and protein expression of PG synthases (PTGS2/COX2, PTGES, PGFS/AKR1C3) and PG receptors (PTGER2, PTGER4, PTGFR), and intra-luteal levels of PGE2and PGF2α. Therefore, CL of pregnant (pre-implantation, post-implantation, regression stages) and non-pregnant (formation, development/maintenance, early regression, late regression stages) domestic cats, and prooestrous Eurasian (perCL, pre-mating) and metoestrous Iberian (perCL, freshCL, post-mating) lynxes were investigated. Expression ofPTGS2/COX2, PTGES and PTGER4 was independent of the luteal stage in the investigated species. High levels of luteotrophic PGE2in perCL might be associated with persistence of luteal function in lynxes. Signals for PGFS/AKR1C3 expression were weak in mid and late luteal stages of cats but were absent in lynxes, concomitant with low PGF2αlevels in these species. Thus, regulation of CL regression by luteal PGF2αseems negligible. In contrast, expression of PTGFR was evident in nearly all investigated CL of cat and lynxes, implying that luteal regression, e.g. at the end of pregnancy, is triggered by extra-luteal PGF2α.
Collapse
|
19
|
Amelkina O, Zschockelt L, Painer J, Serra R, Villaespesa F, Braun BC, Jewgenow K. Apoptosis-Related Factors in the Luteal Phase of the Domestic Cat and Their Involvement in the Persistence of Corpora Lutea in Lynx. PLoS One 2015; 10:e0143414. [PMID: 26599641 PMCID: PMC4658015 DOI: 10.1371/journal.pone.0143414] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 11/04/2015] [Indexed: 11/18/2022] Open
Abstract
The corpus luteum (CL) is a transient gland formed in the ovary after ovulation and is the major source of progesterone. In the Iberian and Eurasian lynx, CL physiologically persist after parturition and retain their capacity to produce progesterone, thus suppressing the ovarian activity. This unique reproductive characteristic has a big impact on the success of assisted reproduction techniques in the endangered Iberian lynx. The mechanisms behind CL persistence are not yet understood and require extensive studies on potential luteotropic and luteolytic factors in felids. Because the apoptosis system has been shown to be involved in structural regression of CL in many species, we aimed to investigate the capacity of perCL to undergo apoptosis. In addition, we performed initial studies on the apoptosis system in the luteal phase of the domestic cat. No previous research on this system has been made in this species. Our factors of interest included agents of the intrinsic apoptosis pathway, i.e., pro-survival B-cell CLL/lymphoma 2 (BCL2) and pro-apoptotic BCL2-associated X protein (BAX), the executioner caspase-3 (CASP3), as well as of the extrinsic pathway, i.e., pro-apoptotic receptor FAS, and tumor necrosis factor (TNF) and its receptors (pro-apoptotic TNFRSF1A and pro-survival TNFRSF1B). We analyzed the relative mRNA levels of these factors, as well as protein localization of CASP3 and TNF during stages of pregnancy and the non-pregnant luteal phase in CL of domestic cats. The same factors were investigated in freshly ovulated CL (frCL) and perCL of Iberian and Eurasian lynx, which were histologically analyzed. All factors were present in the CL tissue of both domestic cat and lynx throughout all analyzed stages. The presence of pro-apoptotic factors BAX, CASP3, FAS and TNFRSF1A in perCL of the Eurasian and Iberian lynx might indicate the potential sensitivity of perCL to apoptotic signals. The expression of pro-survival factors BCL2 and TNFRSF1B was significantly higher in perCL compared to frCL of studied Iberian lynx, suggesting the potential involvement of these factors in the structural integrity of perCL. In both Iberian lynx and pregnant and non-pregnant domestic cats, the expression of TNFRSF1A was significantly higher in forming CL compared to other stages, suggesting the conserved involvement of this factor in the tissue reorganization during formation of the feline CL. The mRNA levels of CASP3 and TNFRSF1B were highest during regression stages of domestic cat CL. The current study provides initial results on the possible involvement of the apoptosis system in the structure and function of the feline CL and in its physiological persistence.
Collapse
Affiliation(s)
- Olga Amelkina
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- * E-mail:
| | - Lina Zschockelt
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Johanna Painer
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Rodrigo Serra
- Iberian lynx captive breeding program, Centro Nacional de Reprodução de Lince Ibérico, Silves, Portugal
| | - Francisco Villaespesa
- Iberian lynx captive breeding program, Centro de Cría de Lince Ibérico El Acebuche, Parque Nacional de Doñana, Huelva, Spain
| | - Beate C. Braun
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Katarina Jewgenow
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| |
Collapse
|
20
|
Zschockelt L, Amelkina O, Koster S, Painer J, Okuyama MW, Serra R, Vargas A, Jewgenow K, Braun BC. Comparative analysis of intraluteal steroidogenic enzymes emphasises the functionality of fresh and persistent corpora lutea during pro--and metoestrus in the lynx. J Steroid Biochem Mol Biol 2015; 154:75-84. [PMID: 26170243 DOI: 10.1016/j.jsbmb.2015.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/30/2015] [Accepted: 07/05/2015] [Indexed: 10/23/2022]
Abstract
European lynx species demonstrate an atypical ovarian cycle compared to other felids. The physiological persistence of corpora lutea (CLs), reflected in constantly elevated progesterone (P4) concentrations in serum, is thought to ensure a seasonal monooestrus. Moreover, the coexistence of CLs from a recent ovulation (freshCLs) and persistent CLs from previous years (perCLs) on the same ovary has been proven. We assume that perCLs in lynxes occur due to fundamentally different mechanisms of luteal regression. Our study presents a detailed analysis of steroidogenic enzymes and steroids in fresh and perCLs obtained from Iberian lynxes during metoestrus, and in perCLs obtained from Eurasian lynxes during prooestrus. By quantitative PCR we measured relative mRNA amounts of steroidogenic acute regulatory protein (STAR), cytochrome P450 oxidases (CYPs), hydroxysteroid dehydrogenases (HSDs) and a steroid reductase (SRD). Protein expression in CLs was investigated for CYP11A1, CYP17A1, CYP19A1 and HSD3B. Additionally, the intraluteal and serum steroid content was determined. During metoestrus, mRNA amounts of STAR, CYP11A1, CYP19A1, HSD17B7 and SRD5A1 were significantly higher in perCLs compared to freshCLs. Protein of CYP11A1 was detected independently of the CL age in metoestrus, but expression was less evident in prooestrous perCLs. The protein signal of CYP17A1 was strong in freshCLs and perCLs of metoestrus, but weak at prooestrus. The presence of CYP19A1 protein was confirmed in each stage of the CL. These findings contribute to the hypothesis that CLs from previous years might support freshly developed CLs for pregnancy maintenance. However, initiation of ovulation might require a functional down-regulation of perCLs prior to breeding. It is noteworthy that the HSD3B1 mRNA amount was significantly elevated in fresh compared to perCLs (metoestrus). Accordingly, HSD3B protein was substantially present in freshCLs, whereas signals were literally absent in all perCLs. Elevated expression of HSD3B coincided with high intraluteal oestrogen concentrations in freshCLs; however, the enzyme pattern was less concordant with intraluteal P4 and androgen concentrations. Serum P4 concentrations of Iberian lynxes were constant between prooestrus and prolonged dioestrus. Moreover, constantly high serum oestrogen concentrations were measured during pro-, met- and prolonged dioestrus. The physiology of exceptionally high serum oestrogen concentrations outside the breeding season of lynxes merits further investigation. In conclusion our study supports the concept that the unique reproductive strategy of lynxes is directly linked to sustained intraluteal steroid biogenesis in persistent CLs.
Collapse
Affiliation(s)
- Lina Zschockelt
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| | - Olga Amelkina
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| | - Stefanie Koster
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| | - Johanna Painer
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| | - Minami W Okuyama
- Laboratory of Wildlife Biology and Medicine, Graduate School of Veterinary Medicine, Hokkaido University, 060-0818 Hokkaido, Japan.
| | - Rodrigo Serra
- National Center for Captive Breeding of the Iberian Lynx, 8375-082 Messines, Portugal.
| | - Astrid Vargas
- El Acebuche Iberian Lynx Captive Breeding Centre, Doñana, Matalascañas, Huelva 21760, Spain.
| | - Katarina Jewgenow
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| | - Beate C Braun
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, PF700430, 10324 Berlin, Germany.
| |
Collapse
|