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Schimming BC, Martins LL, de Oliveira FS, Pinheiro PFF, Domeniconi RF. Morphology and immunolocalization of aquaporins 1 and 9 in the agouti ( Dasyprocta azarae) testis excurrent ducts. Anim Reprod 2021; 18:e20210070. [PMID: 34840612 PMCID: PMC8607849 DOI: 10.1590/1984-3143-ar2021-0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/05/2021] [Indexed: 11/21/2022] Open
Abstract
This study investigated the morphology and immunoexpression of aquaporins (AQPs) 1 and 9 in the rete testis, efferent ducts, epididymis, and vas deferens in the Azara's agouti (Dasyprocta azarae). For this purpose, ten adult sexually mature animals were used in histologic and immunohistochemical analyses. The Azara's agouti rete testis was labyrinthine and lined with simple cubic epithelium. Ciliated and non-ciliated cells were observed in the epithelium of the efferent ducts. The epididymal cellular population was composed of principal, basal, apical, clear, narrow, and halo cells. The epithelium lining of vas deferens was composed of the principal and basal cells. AQPs 1 and 9 were not expressed in the rete testis. Positive reaction to AQP1 was observed at the luminal border of non-ciliated cells of the efferent ducts, and in the peritubular stroma and blood vessels in the epididymis, and vas deferens. AQP9 was immunolocalized in the epithelial cells in the efferent ducts, epididymis and vas deferens. The morphology of Azara's agouti testis excurrent ducts is similar to that reported for other rodents such as Cuniculus paca. The immunolocalization results of the AQPs suggest that the expression of AQPs is species-specific due to differences in localization and expression when compared to studies in other mammals species. The knowledge about the expression of AQPs in Azara's agouti testis excurrent ducts is essential to support future reproductive studies on this animal, since previous studies show that AQPs may be biomarkers of male fertility and infertility.
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Affiliation(s)
- Bruno Cesar Schimming
- Departamento de Anatomia, Universidade Estadual Paulista, Botucatu, São Paulo, Brasil
| | - Leandro Luis Martins
- Departamento de Anatomia, Universidade Estadual de Londrina, Londrina, PR, Brasil
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Wattanavises S, Silsirivanit A, Sawanyawisuth K, Cha’on U, Waraasawapati S, Saentaweesuk W, Luang S, Chalermwat C, Wongkham C, Wongkham S. Increase of MAL-II Binding Alpha2,3-Sialylated Glycan Is Associated with 5-FU Resistance and Short Survival of Cholangiocarcinoma Patients. ACTA ACUST UNITED AC 2019; 55:medicina55120761. [PMID: 31795149 PMCID: PMC6956088 DOI: 10.3390/medicina55120761] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 11/22/2019] [Accepted: 11/24/2019] [Indexed: 01/20/2023]
Abstract
Background and objectives: Sialylation plays important roles in tumor progression. Our present study aimed to demonstrate the alteration of sialylation and its role in cholangiocarcinoma (CCA). Materials and Methods: The α2,3- and α2,6-sialylation in CCA tissue was analyzed by lectin-histochemistry using Maackia amurensis lectin-II (MAL-II) and Sambucus nigra agglutinin (SNA). CCA cell lines were treated with the pan-sialylation inhibitor 3Fax-peracetyl-Neu5Ac (3F-Sia) followed by proliferation and chemosensitivity assays. Results: MAL-II binding α2,3-Sialylated Glycan (MAL-SG) and SNA binding α2,6-Sialylated Glycan (SNA-SG) were both elevated in CCA compared with hyperplastic/dysplastic (HP/DP) and normal bile ducts (NBD). The positive staining for MAL-SG or SNA-SG were found in 82% (61/74) of the CCA cases. Higher expression of MAL-SG in CCA was associated with shorter survival of the patients. The median survival of patients with high and low MAL-SG were 167 and 308 days, respectively, with overall survival of 233 days, suggesting the involvement of MAL-SG in CCA progression. MAL-SG expression of CCA cell lines was markedly decreased after treatment with 3F-Sia for 48 to 72 h. While proliferation of CCA cells were not affected by 3F-Sia treatment, their susceptibility to 5-fluorouracil (5-FU) was significantly enhanced. These results suggest that sialylation is involved in the development of 5-FU resistance and the sialylation inhibitor 3F-Sia can be used as a chemosensitizer for CCA. Conclusions: Sialylation is critically involved in the development of chemoresistance of CCA, and sialylation inhibitors may be used as a chemosensitizer in CCA treatment.
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Affiliation(s)
- Sasiprapa Wattanavises
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Atit Silsirivanit
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
- Correspondence: ; Tel.: +66-43-363-265
| | - Kanlayanee Sawanyawisuth
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Ubon Cha’on
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
| | - Sakda Waraasawapati
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | | | - Sukanya Luang
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Chalongchai Chalermwat
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
| | - Chaisiri Wongkham
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Sopit Wongkham
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.W.); (K.S.); (U.C.); (S.L.); (C.C.); (C.W.); (S.W.)
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
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Shannonhouse JL, Urbanski HF, Woo SL, Fong LA, Goddard SD, Lucas WF, Jones ER, Wu C, Morgan C. Aquaporin-11 control of testicular fertility markers in Syrian hamsters. Mol Cell Endocrinol 2014; 391:1-9. [PMID: 24791736 PMCID: PMC4368057 DOI: 10.1016/j.mce.2014.04.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 02/14/2014] [Accepted: 04/17/2014] [Indexed: 10/25/2022]
Abstract
The present study sought novel changes to the hamster testicular transcriptome during modulation of fertility by well-characterized photoperiodic stimuli. Transition from long days (LD, 14 h light/day) to short days (SD, 10h light/day) triggered testicular regression (61% reduction of testis weight, relative to LD) in SD-sensitive (SD-S) hamsters within 16 weeks. After 22 weeks of SD exposure, a third cohort of hamsters became SD-refractory (SD-R), and exhibited testicular recrudescence (137% testis weight gain, relative to SD-S). Partial interrogation of the testicular transcriptome by annealing-control-primer-modified differential display PCR provided several candidates for regulation of testicular functions. Multiple linear regression modeling indicated the best correlation for aquaporin 11 (Aqp11) with changes in testis weight. Correlations were also strongest for Aqp11 with expression levels of reference cDNAs that control spermatogenesis (Hspa2 and Tnp2), steroidogenesis (Cox2, 3βHsd, and Srebp2), sperm motility (Catsper1, Pgk2, and Tnp2), inflammation (Cox2), and apoptosis (Bax and Bcl2). Moreover, siRNA-mediated knockdown of testicular Aqp11 mRNA and protein reduced Hspa2 and Tnp2 mRNA levels, and it increased 3βHsd mRNA levels. It also reduced mRNA levels for Sept12, which is a testis-specific inducer of spermatogenesis. These results suggest a central role for testicular Aqp11 signaling in the coordinate regulation of crucial components of fertility.
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Affiliation(s)
- John L Shannonhouse
- Institute for Neuroscience, Texas A&M University, College Station, TX 77843, USA
| | - Henryk F Urbanski
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Shih-Lung Woo
- Department of Nutrition & Food Science, Texas A&M University, College Station, TX 77843, USA
| | - Li An Fong
- Department of Nutrition & Food Science, Texas A&M University, College Station, TX 77843, USA
| | - Scott D Goddard
- Department of Statistics, Texas A&M University, College Station, TX 77843, USA
| | - William F Lucas
- Department of Statistics, Texas A&M University, College Station, TX 77843, USA
| | - Edward R Jones
- Department of Statistics, Texas A&M University, College Station, TX 77843, USA
| | - Chaodong Wu
- Department of Nutrition & Food Science, Texas A&M University, College Station, TX 77843, USA
| | - Caurnel Morgan
- Institute for Neuroscience, Texas A&M University, College Station, TX 77843, USA; Department of Nutrition & Food Science, Texas A&M University, College Station, TX 77843, USA.
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