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Abdelnaby EA, Alhaider AK, Ghoneim IM, Salem NY, Ramadan ES, Farghali HA, Khattab MS, AbdElKader NA, Emam IA. Effect of pyometra on vascularity alterations, oxidative stress, histopathology and inflammatory molecules in feline. Reprod Biol 2024; 24:100855. [PMID: 38262266 DOI: 10.1016/j.repbio.2024.100855] [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: 07/07/2023] [Revised: 12/14/2023] [Accepted: 01/08/2024] [Indexed: 01/25/2024]
Abstract
This study aimed to investigate blood flow, hemodynamical features by Doppler ultrasound, the oxidative stress biomarkers from serum samples, and histopathology from uterine tissue, in healthy queens and queens with pyometra. Twenty queens were categorized into two groups, according to signs, history, and ultrasound findings, as pyometra and control healthy queens. Doppler ultrasonography, total antioxidant capacity (TAC), malondialdehyde (MDA), albumin, bacteriological isolation, histopathology, and immunohistochemistry of tumor necrosis factor-alpha (TNF-α) and nuclear factor kappa B (NF-κB) P65 were performed. Uterine diameter and thickness increased significantly in the pyometra group compared to control. Uterine peak velocity and flow rate were significantly higher in the control group. The pyometra group showed a significant decrease in albumin, TAC, and a significant increase in MDA. Fibrosis and mononuclear inflammatory cell infiltration were seen in the pyometra samples. The mean area percentage of TNF-α expression in the uteri of the pyometra group was higher. The expression of NF-κB P65 in the uteri in the pyometra group was significantly higher. Doppler ultrasonography can provide valuable information for diagnosing pyometra in queens by elevating the uterine thickness with reducing blood flow rate. Oxidative stress, TNF-α, and NF-κB expression alterations varied between pyometra and control groups.
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Affiliation(s)
- Elshymaa A Abdelnaby
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia; Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
| | - Abdulrhman K Alhaider
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
| | - Ibrahim M Ghoneim
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia; Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Noha Y Salem
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Eman S Ramadan
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Haithem A Farghali
- Department of Surgery and Anesthesia, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Marwa S Khattab
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Naglaa A AbdElKader
- Department of Surgery and Anesthesia, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Ibrahim A Emam
- Department of Surgery and Anesthesia, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
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2
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Sasidharan JK, Patra MK, Khan JA, Shah I, Sharma R, De UK, Saxena AC, Singh SK, Kumar H, Krishnaswamy N. Secretory leucocyte protease inhibitor (SLPI) as an adjunct prognostic biomarker for canine pyometra. Reprod Domest Anim 2023; 58:1604-1611. [PMID: 37727883 DOI: 10.1111/rda.14477] [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] [Received: 07/28/2023] [Accepted: 09/06/2023] [Indexed: 09/21/2023]
Abstract
Pyometra is a potentially life-threatening condition that affects intact female dogs in their middle to advance age. Timely diagnosis and appropriate treatment are critical for the survival of patients, especially when pyometra advances to sepsis. This study aimed to investigate the prognostic potential of certain haematology, serum biochemical and inflammatory biomarker, secretory leucocyte protease inhibitor (SLPI) for pyometra in bitches (n = 41). Blood samples were collected after clinical diagnosis of pyometra for haematology and serum biochemistry. Based on the prognosis following medical/surgical treatment, animals were retrospectively categorized into survivor (n = 29) and dead (n = 12). Endometrial tissue sections were obtained from the bitches undergoing ovariohysterectomy (n = 21). Serum concentration of SLPI was quantified using sandwich ELISA and its expression in the endometrium was investigated using RT-qPCR. A marked increase in the total leucocyte count (TLC), neutrophils, blood urea nitrogen (BUN) and serum creatinine was observed in the female dogs that did not survive. Significant elevation in the serum SLPI concentration (3.49 ± 0.44 vs. 2.38 ± 0.13 ng/mL) was observed in the bitches those died after the treatment, in comparison to those survived (p < .01). Additionally, there was a notable upregulation of SLPI in the endometrium in the bitches those died due to pyometra. Based on the ROC analysis results, it was observed that a cut-off concentration of 2.93 ng/mL for SLPI, 27.77 mg/dL for BUN and 16.3 × 103 /μL for TLC could effectively distinguish the prognosis of pyometra-affected dogs. From this study, it can be concluded that upregulation of SLPI in the endometrium and its elevated concentration in peripheral circulation along with TLC and BUN concentration could serve as valuable indicators for predicting the prognosis of pyometra in bitches.
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Affiliation(s)
| | - Manas Kumar Patra
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - Javid Ahmad Khan
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - Irfan Shah
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - Renu Sharma
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - Ujjwal Kumar De
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | | | - Sanjay Kumar Singh
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - Harendra Kumar
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, India
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3
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Hagman R. Pyometra in Small Animals 3.0. Vet Clin North Am Small Anim Pract 2023:S0195-5616(23)00071-2. [PMID: 37270345 DOI: 10.1016/j.cvsm.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Pyometra is a common disease in intact bitches and queens and occurs, although less frequently, in most other female pets. In bitches and queens, the illness is generally diagnosed within 4 months after estrus, in middle-aged to older individuals. Complications such as peritonitis, endotoxemia, and systemic inflammatory response syndrome are not uncommon and associated with more severe illness. Ovary-sparing surgical options such as hysterectomy could be considered in individuals with high-risk for detrimental side effects of spaying or without infection of the uterus but has not yet been evaluated for safety in pyometra.
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Affiliation(s)
- Ragnvi Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, PO Box 7054, Uppsala SE-75007, Sweden.
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4
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Sasidharan JK, Patra MK, Khan JA, Singh AK, Karikalan M, De UK, Saxena AC, Dubal ZB, Singh SK, Kumar H, Krishnaswamy N. Differential expression of inflammatory cytokines, prostaglandin synthases and secretory leukocyte protease inhibitor in the endometrium and circulation in different graded CEH-pyometra in bitch. Theriogenology 2023; 197:139-149. [PMID: 36516536 DOI: 10.1016/j.theriogenology.2022.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 11/24/2022]
Abstract
Cystic endometrial hyperplasia (CEH)-pyometra (CEH-P) is one of the most common reproductive disorders in bitches, posing a risk to both future fertility and life. The aims of the current study were to elucidate the differential expression patterns of inflammatory mediators at transcript and protein levels in the endometrium and to assess the concentrations of key inflammatory mediators in the peripheral circulation of bitches with different graded CEH-P. A total of 25 client-owned intact mixed breed bitches of 3-10 years presented to the outpatient department of RVP-TVCC of the institute were considered for the study. Of which, 22 cases suggestive of pyometra and 3 cases of CEH obtained during routine elective ovariohysterectomy were subjected to histopathological examination. Uteri were categorized into CEH (n = 3), moderate CEH-P (mCEH-P, n = 9), severe CEH-P (sCEH-P, n = 6) and atrophic pyometra (AT-P, n = 7). A group of age matched (n = 12) bitches without pyometra served as control. Endometrial transcripts such as IL6, IL8, PTGS2, PGFS, and SLPI were expressed differentially in the CEH and CEH-P bitch. In addition, a strong immunoreactivity (IR) of IL6, IL8, PTGS2, and mPGES1 was recorded in the sCEH-P uterus, while expression of IL10 was noticed in AT-P. In circulation, serum IL6 was the most relevant marker with high sensitivity of 96.2% and specificity of 84.6% at a cut off concentration 8.5 pg/mL followed by SLPI with 95.2% sensitivity, and 84.6% specificity at cut off concentration of 1.3 ng/mL. Serum IL10, PGFM and SLPI concentration in the peripheral circulation were 1.5-2.23 fold higher in mCEH-P, 0.87-2.5 fold higher in sCEH-P and 2.9-3.5 fold higher in AT-P than that of control. It is concluded that monitoring the serum concentration of IL6, IL10 and SLPI would be useful adjunct to the established hematobiochemical parameters in the management of pyometra in the bitch with critical illness.
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Affiliation(s)
- J K Sasidharan
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - M K Patra
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India.
| | - J A Khan
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - A K Singh
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - M Karikalan
- Centre for Wildlife Conservation, Management and Disease Surveillance, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - U K De
- Division of Veterinary Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India; Referral Veterinary Polyclinic, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - A C Saxena
- Referral Veterinary Polyclinic, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Z B Dubal
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - S K Singh
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - H Kumar
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - N Krishnaswamy
- Indian Veterinary Research Institute, Hebbal, Bengaluru, 560 024, India
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5
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Zhang Y, Chen W, Cheng X, Wang F, Gao C, Song F, Song F, Liang X, Fang W, Chen Z. Sphingomyelin Phodiesterase Acid-Like 3A Promotes Hepatocellular Carcinoma Growth Through the Enhancer of Rudimentary Homolog. Front Oncol 2022; 12:852765. [PMID: 35686107 PMCID: PMC9171240 DOI: 10.3389/fonc.2022.852765] [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: 01/12/2022] [Accepted: 04/25/2022] [Indexed: 12/24/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide, with unclear pathogenesis. Sphingomyelin phodiesterase acid-like 3A (SMPDL3A) affects cell differentiation and participates in immune regulation. However, its molecular biological function in HCC has not yet been elucidated. Methods Data from 180 HCC patients were analyzed the relationship between the expression of SMPDL3A in liver cancer tissues and the prognosis of liver cancer patients. Crispr-Cas9 dual vector lentivirus was used to knock out SMPDL3A in HCC cell lines. The effects of SMPDL3A on cell viability were determined by CCK8 assay, clone formation experiment, cell cycle assay, cell scratch, TUNEL experiment and flow cytometry. Xenograft tumor assays in BALB/c nude mice confirmed that SMPDL3A promoted tumor growth and in vivo. Preliminary exploration of SMPDL3A interacting protein by mass spectrometry analysis and co-immunoprecipitation. Results This study showed that the expression of SMPDL3A in HCC tissue differed from that in tumor-adjacent tissues. Moreover, the overall survival rate and tumor-free survival rate of patients with high-SMPDL3A expression were significantly lower than those with low-SMPDL3A expression. SMPDL3A expression was closely related to the level of protein induced by PIVKA-II, liver cirrhosis, tumor diameter, microvascular invasion, and Barcelona clinic liver cancer staging. Thus, SMPDL3A is an independent risk factor that affects the tumor-free survival rate and overall survival rate of HCC patients. In vitro study using Crispr-Cas9 genome editing technology revealed the knockout effect of SMPDL3A on cell proliferation, apoptosis, and migration. Cell counting kit-8 assay and clone formation experiment showed that sgSMPDL3A inhibited tumor cell proliferation and migration. Flow cytometry and TUNEL assay showed that sgSMPDL3A promoted apoptosis in tumors. Moreover, sgSMPDL3A inhibited tumor growth during subcutaneous tumor formation in nude mice. Immunohistochemistry of Ki67 and PNCA also indicated that sgSMPDL3A inhibited subcutaneous tumor proliferation in tumor-bearing nude mice. Further experiments showed that SMPDL3A interacts with the enhancer of rudimentary homolog (ERH). Conclusions High-SMPDL3A expression was related to poor prognosis of patients with HCC. Knockout of SMPDL3A inhibited the proliferation and migration and accelerated the migration of HCC cells. SMPDL3A interacted with ERH to affect the tumorigenesis and progression of HCC.
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Affiliation(s)
- Yu Zhang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Weipeng Chen
- School of Medicine, Nantong University, Nantong, China.,Department of General Surgery, Binhai County People's Hospital, Yancheng, China
| | - Xin Cheng
- School of Medicine, Nantong University, Nantong, China.,Department of General Surgery, Jingjiang People's Hospital, Taizhou, China
| | - Feiran Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Cheng Gao
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Fei Song
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Fengliang Song
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoliang Liang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Wanzhi Fang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Zhong Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Nantong University, Nantong, China
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6
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Bazzano M, Marchegiani A, Troisi A, McLean A, Laus F. Serum Amyloid A as a Promising Biomarker in Domestic Animals’ Reproduction: Current Knowledge and Future Perspective. Animals (Basel) 2022; 12:ani12050589. [PMID: 35268158 PMCID: PMC8909795 DOI: 10.3390/ani12050589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Acute phase proteins (APPs) are useful markers which can be evaluated in animals to assess health status and characterize inflammation, infection, and trauma. Among APPs, serum amyloid A (SAA) has been widely investigated in pets and food-producing species as a possible biomarker of inflammatory and infective conditions, especially in the field of animal reproduction. The aims of this paper are to review the literature available on the use of SAA for the diagnosis and monitoring of inflammatory reproductive disease in animals, critically appraising the usefulness of such marker and summarizing the current state of knowledge. Abstract The investigation of acute phase proteins in veterinary medicine has opened the doors towards the identification and use of new markers for a timely assessment of health status in both companion and food-producing animals. The aim of this paper is to review the literature available on the use of serum amyloid A (SAA), an acute phase protein, for the diagnosis and monitoring of reproductive disorders in animals. This review critically appraises the usefulness of such marker in clinical practice and summarizes the current state of knowledge. Recent advances in the diagnosis and monitoring of reproductive diseases are presented, highlighting where SAA evaluation may enhance early diagnostic tools for dogs, cats, cattle, and equines.
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Affiliation(s)
- Marilena Bazzano
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (A.M.); (A.T.); (F.L.)
- Correspondence:
| | - Andrea Marchegiani
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (A.M.); (A.T.); (F.L.)
| | - Alessandro Troisi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (A.M.); (A.T.); (F.L.)
| | - Amy McLean
- Department of Animal Science, University of California, Davis (UC Davis), Davis, CA 95616, USA;
| | - Fulvio Laus
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (A.M.); (A.T.); (F.L.)
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7
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Szczubiał M, Kankofer M, Wawrzykowski J, Dąbrowski R, Bochniarz M, Brodzki P. Activity of the glycosidases β-galactosidase, α-l-fucosidase, β-N-acetyl-hexosaminidase, and sialidase in uterine tissues from female dogs in diestrus with and without pyometra. Theriogenology 2022; 177:133-139. [PMID: 34700070 DOI: 10.1016/j.theriogenology.2021.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 01/05/2023]
Abstract
This study aimed to compare the activity of selected glycosidases (β-galactosidase, α-l-fucosidase, β-N-acetyl-hexosaminidase, and sialidase) in homogenates of uterine tissues obtained from female dogs with and without pyometra. In addition, it examined the availability of substrates for these glycosidases in the homogenates. The study was carried out on female dogs undergoing ovariohysterectomy for pyometra (n = 10) and clinically healthy dogs (n = 10) undergoing elective spaying. The activity of β-galactosidase, α-l-fucosidase, and β-N-acetyl-hexosaminidase was analyzed using a spectrofluorometer and that of sialidase using a colorimetric method. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis with Alcian Blue (AB) and Periodic Acid-Schiff (PAS) staining was performed to determine the presence of substrates for these glycosidases in the homogenates of uterine tissues. The results revealed that the activity of all the examined glycosidases was significantly higher (P < 0.05) in the uterine tissues isolated from dogs with pyometra in comparison to healthy dogs. The electrophoretic patterns of the selected samples showed several proteins, which contained different sugar moieties stained by AB and PAS and the profiles differed significantly between the pyometra group and the healthy group. Densitometric analysis of AB staining showed patterns between 233 and 148, 86 and 55, and 43 and 20 kDa, which differed markedly in sugar content between the examined groups of animals. Similarly, PAS staining analysis revealed patterns of different molecular weights, between 233 and 117 and between 55 and 32 kDa, which also differed in sugar content. These findings suggest that canine pyometra is accompanied by the increase in the activity of selected glycosidases in the uterus. This could potentially modify the glycan structures of uterine glycoproteins and in result their biological functions. Further studies are needed to elucidate the potential role of the increased activity of glycosidases in the pathogenesis of this disease.
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Affiliation(s)
- Marek Szczubiał
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland.
| | - Marta Kankofer
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - Jacek Wawrzykowski
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - Roman Dąbrowski
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Mariola Bochniarz
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Piotr Brodzki
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
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8
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Brachygnathia Inferior in Cloned Dogs Is Possibly Correlated with Variants of Wnt Signaling Pathway Initiators. Int J Mol Sci 2022; 23:ijms23010475. [PMID: 35008901 PMCID: PMC8745273 DOI: 10.3390/ijms23010475] [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: 11/15/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022] Open
Abstract
Abnormalities in animals cloned via somatic cell nuclear transfer (SCNT) have been reported. In this study, to produce bomb-sniffing dogs, we successfully cloned four healthy dogs through SCNT using the same donor genome from the skin of a male German shepherd old dog. Veterinary diagnosis (X-ray/3D-CT imaging) revealed that two cloned dogs showed normal phenotypes, whereas the others showed abnormal shortening of the mandible (brachygnathia inferior) at 1 month after birth, even though they were cloned under the same conditions except for the oocyte source. Therefore, we aimed to determine the genetic cause of brachygnathia inferior in these cloned dogs. To determine the genetic defects related to brachygnathia inferior, we performed karyotyping and whole-genome sequencing (WGS) for identifying small genetic alterations in the genome, such as single-nucleotide variations or frameshifts. There were no chromosomal numerical abnormalities in all cloned dogs. However, WGS analysis revealed variants of Wnt signaling pathway initiators (WNT5B, DVL2, DACT1, ARRB2, FZD 4/8) and cadherin (CDH11, CDH1like) in cloned dogs with brachygnathia inferior. In conclusion, this study proposes that brachygnathia inferior in cloned dogs may be associated with variants in initiators and/or regulators of the Wnt/cadherin signaling pathway.
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Abbas HA, Mohanty V, Wang R, Huang Y, Liang S, Wang F, Zhang J, Qiu Y, Hu CW, Qutub AA, Dail M, Bolen CR, Daver N, Konopleva M, Futreal A, Chen K, Wang L, Kornblau SM. Decoupling Lineage-Associated Genes in Acute Myeloid Leukemia Reveals Inflammatory and Metabolic Signatures Associated With Outcomes. Front Oncol 2021; 11:705627. [PMID: 34422660 PMCID: PMC8372368 DOI: 10.3389/fonc.2021.705627] [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: 05/05/2021] [Accepted: 07/07/2021] [Indexed: 12/28/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease with variable responses to therapy. Cytogenetic and genomic features are used to classify AML patients into prognostic and treatment groups. However, these molecular characteristics harbor significant patient-to-patient variability and do not fully account for AML heterogeneity. RNA-based classifications have also been applied in AML as an alternative approach, but transcriptomic grouping is strongly associated with AML morphologic lineages. We used a training cohort of newly diagnosed AML patients and conducted unsupervised RNA-based classification after excluding lineage-associated genes. We identified three AML patient groups that have distinct biological pathways associated with outcomes. Enrichment of inflammatory pathways and downregulation of HOX pathways were associated with improved outcomes, and this was validated in 2 independent cohorts. We also identified a group of AML patients who harbored high metabolic and mTOR pathway activity, and this was associated with worse clinical outcomes. Using a comprehensive reverse phase protein array, we identified higher mTOR protein expression in the highly metabolic group. We also identified a positive correlation between degree of resistance to venetoclax and mTOR activation in myeloid and lymphoid cell lines. Our approach of integrating RNA, protein, and genomic data uncovered lineage-independent AML patient groups that share biologic mechanisms and can inform outcomes independent of commonly used clinical and demographic variables; these groups could be used to guide therapeutic strategies.
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Affiliation(s)
- Hussein A Abbas
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Vakul Mohanty
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ruiping Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Yuefan Huang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.,Department of Biostatistics & Data Science, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Shaoheng Liang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.,Department of Computer Science, Rice University, Houston, TX, United States
| | - Feng Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jianhua Zhang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Yihua Qiu
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Chenyue W Hu
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Amina A Qutub
- Department of Bioengineering, Rice University, Houston, TX, United States
| | - Monique Dail
- Oncology Biomarker Development, Genentech Inc, South San Francisco, CA, United States
| | - Christopher R Bolen
- Oncology Bioinformatics, Genentech Inc, South San Francisco, CA, United States
| | - Naval Daver
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Marina Konopleva
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Andrew Futreal
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Linghua Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Steven M Kornblau
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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10
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Arendt M, Ambrosen A, Fall T, Kierczak M, Tengvall K, Meadows JRS, Karlsson Å, Lagerstedt AS, Bergström T, Andersson G, Lindblad-Toh K, Hagman R. The ABCC4 gene is associated with pyometra in golden retriever dogs. Sci Rep 2021; 11:16647. [PMID: 34404837 PMCID: PMC8370986 DOI: 10.1038/s41598-021-95936-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 07/29/2021] [Indexed: 11/24/2022] Open
Abstract
Pyometra is one of the most common diseases in female dogs, presenting as purulent inflammation and bacterial infection of the uterus. On average 20% of intact female dogs are affected before 10 years of age, a proportion that varies greatly between breeds (3–66%). The clear breed predisposition suggests that genetic risk factors are involved in disease development. To identify genetic risk factors associated with the disease, we performed a genome-wide association study (GWAS) in golden retrievers, a breed with increased risk of developing pyometra (risk ratio: 3.3). We applied a mixed model approach comparing 98 cases, and 96 healthy controls and identified an associated locus on chromosome 22 (p = 1.2 × 10–6, passing Bonferroni corrected significance). This locus contained five significantly associated SNPs positioned within introns of the ATP-binding cassette transporter 4 (ABCC4) gene. This gene encodes a transmembrane transporter that is important for prostaglandin transport. Next generation sequencing and genotyping of cases and controls subsequently identified four missense SNPs within the ABCC4 gene. One missense SNP at chr22:45,893,198 (p.Met787Val) showed complete linkage disequilibrium with the associated GWAS SNPs suggesting a potential role in disease development. Another locus on chromosome 18 overlapping the TESMIN gene, is also potentially implicated in the development of the disease.
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Affiliation(s)
- Maja Arendt
- Faculty of Health and Medical Sciences, Department of Veterinary Clinical Sciences, University of Copenhagen, Copenhagen, Denmark. .,Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.
| | - Aime Ambrosen
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tove Fall
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Marcin Kierczak
- Department of Cell and Molecular Biology, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Katarina Tengvall
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Jennifer R S Meadows
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Åsa Karlsson
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Anne-Sofie Lagerstedt
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tomas Bergström
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Göran Andersson
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kerstin Lindblad-Toh
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Ragnvi Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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11
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Nowak M, Aslan S, Kowalewski MP. Determination of novel reference genes for improving gene expression data normalization in selected canine reproductive tissues - a multistudy analysis. BMC Vet Res 2020; 16:440. [PMID: 33183298 PMCID: PMC7659137 DOI: 10.1186/s12917-020-02635-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 10/22/2020] [Indexed: 11/19/2022] Open
Abstract
Background Real time RT-PCR (qPCR) is a useful and powerful tool for quantitative measurement of gene expression. The proper choice of internal standards such as reference genes is crucial for correct data evaluation. In female dogs, as in other species, the reproductive tract is continuously undergoing hormonal and cycle stage-dependent morphological changes, which are associated with altered gene expression. However, there have been few attempts published so far targeted to the dog aimed at determining optimal reference genes for the reproductive organs. Most of these approaches relied on genes previously described in other species. Large-scale transcriptome-based experiments are promising tools for defining potential candidate reference genes, but were never considered in this context in canine research. Results Here, using available microarray and RNA-seq datasets derived from reproductive organs (corpus luteum, placenta, healthy and diseased uteri) of dogs, we have performed multistudy analysis to identify the most stably expressed genes for expression studies, in each tissue separately and collectively for different tissues. The stability of newly identified reference genes (EIF4H, KDELR2, KDM4A and PTK2) has been determined and ranked relative to previously used reference genes, i.e., GAPDH, β-actin and cyclophillin A/PPIA, using RefFinder and NormFinder algorithms. Finally, expression of selected target genes (luteal IL-1b and MHCII, placental COX2 and VEGFA, and uterine IGF2 and LHR) was re-evaluated and normalized. All proposed candidate reference genes were more stable, ranked higher and introduced less variation than previously used genes. Conclusions Based on our analyses, we recommend applying KDM4A and PTK2 for normalization of gene expression in the canine CL and placenta. The inclusion of a third reference gene, EIF4H, is suggested for healthy uteri. With this, the interpretation of qPCR data will be more reliable, allowing better understanding of canine reproductive physiology. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-020-02635-6.
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Affiliation(s)
- Marta Nowak
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich (UZH), Winterthurerstrasse 260, CH-8057, Zurich, Switzerland
| | - Selim Aslan
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Near East University, Nicosia, North Cyprus, Turkey
| | - Mariusz P Kowalewski
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich (UZH), Winterthurerstrasse 260, CH-8057, Zurich, Switzerland.
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12
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Pai P, Sukumar S. HOX genes and the NF-κB pathway: A convergence of developmental biology, inflammation and cancer biology. Biochim Biophys Acta Rev Cancer 2020; 1874:188450. [PMID: 33049277 DOI: 10.1016/j.bbcan.2020.188450] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/11/2020] [Accepted: 10/07/2020] [Indexed: 02/06/2023]
Abstract
The roles of HOX transcription factors as oncogenes and tumor suppressor genes, and the NF-KB pathway in chronic inflammation, both leading to cancer are well-established. HOX transcription factors are members of an evolutionarily conserved family of proteins required for anteroposterior body axis patterning during embryonic development, and are often dysregulated in cancer. The NF-KB pathway aids inflammation and immunity but it is also important during embryonic development. It is frequently activated in both solid and hematological malignancies. NF-KB and HOX proteins can influence each other through mutual transcriptional regulation, protein-protein interactions, and regulation of upstream and downstream interactors. These interactions have important implications both in homeostasis and in disease. In this review, we summarize the role of HOX proteins in regulating inflammation in homeostasis and disease- with a particular emphasis on cancer. We also describe the relationship between HOX genes and the NF-KB pathway, and discuss potential therapeutic strategies.
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Affiliation(s)
- Priya Pai
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America
| | - Saraswati Sukumar
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America.
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13
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SINGH LKIPJEN, PATRA MK, MISHRA GK, SAXENA AC, DE UK, SINGH SK, KUMAR H, KRISHNASWAMY N. Effect of systemic inflammatory response syndrome (SIRS) on prostaglandin metabolite and oxidative stress in canine pyometra. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2020. [DOI: 10.56093/ijans.v90i4.104199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pyometra, either open or closed cervix, inevitably progresses to systemic inflammatory response syndrome (SIRS), if ovariohysterectomy is not done timely. The aim of the study was to investigate the effect of pyometra led SIRS on certain serum biochemical and prostaglandin metabolite, 13,14-dihydro-15-keto PGF2 alpha (PGFM) and oxidative stress indices in the canine. The pyometra positive bitches were categorized as SIRS+ (n=29) and SIRS- (n =16) based on temperature (<100.5 or >102.5°F), respiration rate (>20/min), heart rate (>102/min), and total leukocytes count (<6×103 or >16×103 per μL). The SIRS+ bitches showed hypoalbuminemia, hyperglobulinemia, elevated blood urea nitrogen and creatinine, decreased super oxide dismutase (SOD) activity with moderate increase in the lipid peroxidation. Further, the SIRS+ bitches had significantly higher serum PGFM concentration (6.83±0.7 vs. 4.12±0.4 ng/mL) than SIRS- and the level was influenced by cervical patency. It was concluded that elevated serum PGFM along with hyperglobunemia, blood urea nitrogen, creatinine would be useful in diagnosis and monitoring of pyometra led SIRS in bitch.
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14
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Contrast-Enhanced Ultrasound in Cystic Endometrial Hyperplasia-Pyometra Complex in the Bitch: A Preliminary Study. Animals (Basel) 2020; 10:ani10081368. [PMID: 32784584 PMCID: PMC7460530 DOI: 10.3390/ani10081368] [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: 06/16/2020] [Revised: 08/04/2020] [Accepted: 08/04/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary In canine cystic endometrial hyperplasia–pyometra (CEH) syndrome, toxic factors and endometrial inflammatory reactions are responsible of increased blood flow and lower vascular resistance in uterine arteries. Color Doppler ultrasound is regarded as an adjunctive tool for quantitative assessment of endometrial vascularization during uterine disorders. The aim of this study was to assess, through contrast-enhanced ultrasound (CEUS) exam, the vascularization in endometrial microvessels in CEH-pyometra in order to evaluate the possibility of application in this syndrome. In twelve female dogs with clinical symptoms related to pyometra, echographic, Color Doppler and CEUS exams were performed. Histopathological examination revealed severe CEH and pyometra, immunohistochemical stain with CD 34 confirmed the presence of angiogenesis. CEUS exam revealed a widespread, intense and rapidly developing homogeneous enhancement of the hyperplastic endometrium with absence of signal only in cystic areas. All parameters of the quantitative analysis were not significantly influenced by region of interest dimension and position. CEUS may improve not invasive evaluations in the CEH-pyometra syndrome and virtually in CEH-mucometra. Abstract In cystic endometrial hyperplasia (CEH)–pyometra syndrome, toxic factors and endometrial remodeling culminate in changes characterized by exudative and degenerative inflammatory reaction. Recent studies on hemodynamic found an increased blood flow and lower vascular resistance in uterine arteries, suggesting color Doppler ultrasound as an adjunctive tool for quantitative assessment of endometrial vascularization during pyometra. The aim of this study was to assess, through contrast-enhanced ultrasound (CEUS) exam, the vascularization in endometrial microvessels in CEH-pyometra in order to evaluate the possibility of application in this syndrome. In twelve female dogs with clinical symptoms related to pyometra, B-mode, color Doppler and CEUS exams were performed. In CEH-pyometra uteri, histopathological examination revealed severe CEH and pyometra, immunohistochemical stain with CD 34 confirmed the presence of angiogenesis. CEUS exams revealed a widespread, intense and rapidly developing homogeneous enhancement of the hyperplastic endometrium, with absence of signal only in cystic areas. All parameters of the quantitative analysis were not significantly influenced by region of interest dimension and position. CEUS has the potential to improve clinical not invasive evaluations in the CEH-pyometra syndrome and virtually in CEH-mucometra.
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15
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Qian C, Jiang C, Hou J. The endometrium histopathology and cell ultrastructure in bitches with pyometra induced using progesterone and Escherichia coli. Tissue Cell 2020; 67:101414. [PMID: 32835946 DOI: 10.1016/j.tice.2020.101414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/03/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND We investigated uterine histopathological and ultrastructural changes in female dogs with pyometra induced by Escherichia coli (E. coli) inoculation using progesterone and/or estradiol. METHODS Dogs were ovariectomized and classified into six groups: Groups 1-6 corresponding to estradiol treatment followed by progesterone supplementation, progesterone supplementation only, estradiol supplementation only, simultaneous treatment using estradiol and progesterone, similar to Group 1 but with a double dose, and control group, respectively. RESULTS Pyometra was successfully induced in Groups 1, 2, 4, and 5, but not in Group 3. An uneven endometrial surface was observed, along with a purulent discharge, bleeding, inflammatory lesions, cystic endometrial hyperplasia (CEH) or cystic endometrial atrophy. Endometrial thickness percentage, uterine wall thickness, and the percentage of endometrial cyst area increased. Endometrial epithelial mushroom-like hyperplasia and the honeycomb-like structure exposed under the epithelium after flaky exfoliation were found, and the glandular epithelial villi became longer or shorter. Mitochondria expansion and increased lysosome were observed. Endoplasmic reticulum dilation and swelling and many inflammatory cells, especially plasma cell infiltration in the stroma, were found. CONCLUSIONS Endometrial histopathology and ultrastructural changes in affected dogs were accompanied by induction of pyometra, and they were affected by different hormonal patterns and E. coli.
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Affiliation(s)
- Cunzhong Qian
- College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, 210095, Jiangsu, China
| | - Chunyang Jiang
- College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, 210095, Jiangsu, China
| | - Jiafa Hou
- College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, 210095, Jiangsu, China.
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16
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The plasma proteome and the acute phase protein response in canine pyometra. J Proteomics 2020; 223:103817. [PMID: 32416315 DOI: 10.1016/j.jprot.2020.103817] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/24/2020] [Accepted: 05/09/2020] [Indexed: 01/30/2023]
Abstract
Canine pyometra is a common inflammatory disease of uterus in sexually mature bitches caused by secondary bacterial infection, leading to change in plasma proteins associated with the innate immune system. Proteomic investigation is increasingly being applied to canine diseases in order to identify and quantify significant changes in the plasma proteome. The aim of the study was to assess and quantify changes in plasma proteome profiles of healthy dogs and pyometra affected bitches using a TMT-based high-resolution quantitative proteomic approach. As a result, 22 proteins were significantly down-regulated including transthyretin, antithrombin, retinol-binding protein, vitamin D binding protein, paraoxonase 1, and kallikrein, while 16 were significantly up-regulated including haptoglobin light chain, alpha-1-acid glycoprotein, C-reactive protein precursor, and lipopolysaccharide-binding protein in dogs with pyometra. Pathway analysis indicated that acute inflammatory response, regulation of body fluid levels, protein activation cascade, the humoral immune response, and phagocytosis were affected in pyometra. Validation of biological relevance of the proteomic study was evident with significant increases in the concentrations of haptoglobin, C-reactive protein, alpha-1-acid glycoprotein, and ceruloplasmin by immunoassay. Pyometra in bitches was shown to stimulate an increase in host defence system proteins in response to inflammatory disease including the acute phase proteins. SIGNIFICANCE: The label-based high-resolution quantitative proteomics analysis and bioinformatic approach used in this study provide insight into the complex pathophysiology of inflammation associated with pyometra revealing proteins with biomarker potential. Early diagnosis and therapeutic intervention may prevent severe complications associated with advancing sepsis in dogs with pyometra. Therefore the identification of diagnostic biomarkers that, after clinical validation may be used in veterinary practice and protein relevant to pathways responding to disease are important findings of the study. Data are available via ProteomeXchange with identifier PXD015951.
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17
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Szczubiał M, Wawrzykowski J, Dąbrowski R, Bochniarz M, Brodzki P, Kankofer M. The effect of pyometra on glycosylation of proteins in the uterine tissues from female dogs. Theriogenology 2019; 131:41-46. [PMID: 30939355 DOI: 10.1016/j.theriogenology.2019.03.020] [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: 01/10/2019] [Revised: 03/20/2019] [Accepted: 03/24/2019] [Indexed: 12/26/2022]
Abstract
The main aim of this study was to investigate the effect of pyometra on glycosylation of proteins in the uterine tissues from female dogs, using western blotting with selected lectins (Sambucus nigra agglutinin - SNA and Maackia amurensis agglutinin - MAL II). In addition protein pattern of examined tissues was also evaluated. The study was performed on 10 female dogs undergoing ovariohysterectomy because of pyometra and 10 clinically healthy female dogs, undergoing elective spaying (ovariohysterectomy). Uterine tissue samples of 1 cm2 were taken from the middle region of each uterine horn in both group of animals immediately after ovariohysterectomy. Tissue samples were homogenized and analysed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting with SNA and MAL II. SDS-PAGE analysis showed differences between pyometra samples and controls in the amount of obtained protein fractions and the protein content in the individual fractions. Five protein (with a molecular weight of 193.78 kDa, 103.18 kDa, 77.67 kDa, 70.39 kDa, and 53.00 kDa) were found only in the pyometra samples. The remaining fractions differed in intensity of staining, which indicated differ abundance of a given protein. The results of western blotting with SNA and MAL II demonstrated that the pattern obtained from densitometric analysis differs between adequate healthy and pyometra samples with regard to the amount of protein fraction obtained as well as the intensity of staining of particular fraction. The pyometra tissues contained seven SNA-binding proteins (with a molecular weight 189.94 kDa, 165.51 kDa, 100.94 kDa, 59.42 KDa, 41.32 kDa, 35.16 kDa, and 32.6 kDa) that were not in the healthy tissues. Of the nine remaining fractions, six showed significantly higher (P < 0.05) intensity of staining in the healthy uterine tissues. In turn, the MAL II-binding protein with a molecular weight 75.85 kDa, 51.12 kDa, and 49.98 kDa were found only in the pyometra samples. Of the 28 remaining fractions, ten demonstrated significantly higher (P < 0.05), and five fractions had significantly lower (P < 0.05) intensity of staining in the pyometra tissues. The results obtained indicate that proteins in uterine tissues from female dogs with pyometra are differently glycosylated compared to normal uterine tissues. These findings provide the basis for further studies of the possible role of glycosylation in the pathogenesis of canine pyometra.
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Affiliation(s)
- Marek Szczubiał
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland.
| | - Jacek Wawrzykowski
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - Roman Dąbrowski
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Mariola Bochniarz
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Piotr Brodzki
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Marta Kankofer
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
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18
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Singh LK, Patra MK, Mishra GK, Singh V, Upmanyu V, Saxena AC, Singh SK, Das GK, Kumar H, Krishnaswamy N. Endometrial transcripts of proinflammatory cytokine and enzymes in prostaglandin synthesis are upregulated in the bitches with atrophic pyometra. Vet Immunol Immunopathol 2018; 205:65-71. [PMID: 30459003 DOI: 10.1016/j.vetimm.2018.10.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 10/16/2018] [Accepted: 10/21/2018] [Indexed: 10/28/2022]
Abstract
Inflammatory markers of endometrial origin are valuable in order to differentiate the pyometra from cystic endometrial hyperplasia in the bitch. In the present study, we hypothesized that histological categorization would distinguish the differential regulation of the proinflammatory genes in the endometrium of bitches with pyometra. Ovariohysterectomy was done on bitches with confirmatory diagnosis of pyometra (n = 18). Using endometrium to myometrium ratio of 0.79 as threshold, the uteri (n = 8/group) were categorized into hyperplastic pyometra (HP) and atrophic pyometra (AP). Two samples were excluded as the diagnosis was inconclusive. In parallel, endometrial tissue was collected for total RNA extraction to study the differential expression of TLR4, IL-6, IL-8, COX-2 and PGFS through real time PCR. Diestrus uterus of non-pyometra bitches (n = 6) served as control. The mean fold change (2-ΔΔCt) for the target genes was determined using β-actin as endogenous control and non-pyometra uterus as calibrator group. Except TLR4, other inflammatory genes were upregulated significantly by 1.82 to 3.74 times in the AP as compared to HP with maximum upregulation of COX-2 and PGFS. Further, correlation matrix with Spearman's rho revealed that IL-8 had strong positive correlation with COX-2 and PGFS in the AP group (P < 0.05). It is concluded that histological grading of pyometra into HP and AP revealed differential regulation of inflammatory cytokines and enzymes in the PG synthetic pathway in the canine endometrium that has diagnostic potential under clinical settings.
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Affiliation(s)
- Laishram Kipjen Singh
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Manas Kumar Patra
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India.
| | - Girish Kumar Mishra
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Vidya Singh
- Pathology Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Vikramaditya Upmanyu
- Division of Biological Standardization, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Abhishek C Saxena
- Division of Veterinary Surgery, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Sanjay Kumar Singh
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Goutam Kumar Das
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Harendra Kumar
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Narayanan Krishnaswamy
- Animal Reproduction Division, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
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Abstract
Uterine diseases are common in dogs, particularly in countries where elective spaying is not usually performed. The associated clinical illnesses may be of varying degree ranging from merely decreased fertility to a critical pyometra requiring intensive care to survive. The diagnosis of some uterine diseases is generally uncomplicated, such as in a classic pyometra presenting with enlarged, fluid-filled uterus, purulent vaginal discharge and characteristic signs of illness or in other disorders associated with uterine enlargement. However, it can be more puzzling in diseases with normal uterine size and very mild or obscure clinical signs. It is important to recognize the uterine diseases early because of the risk of potentially life-threatening complications such as sepsis developing if treatment is delayed in cases where bacterial infection is present. In breeding bitches, an early diagnosis, that is when the disease has not developed extensively, will increase the possibility of non-surgical treatment options without increased risk and thereby also increasing chances of maintained fertility. Early diagnosis and treatment initiation are thus favourable for complete recovery, also in less severe uterine diseases and those without infection. Molecular markers are molecules in biological samples that can be measured for diagnostic purposes, outcome prediction, and for gaining more information about different physiological and pathological conditions. Examples of commonly evaluated markers include laboratory variables analysed in blood, urine, cytological or tissue biopsy samples. Regarding the genetic pre-disposition for different uterine diseases in dogs, information is lacking. Recently, the global gene expression in uterine tissue in dogs has been investigated more closely, and newly developed technologies provide excellent opportunities for identifying molecular markers worth exploring further. The focus of this review article is to highlight findings on markers relevant for diagnosis, prediction of prognosis and treatment outcome in the most common uterine diseases in dogs.
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Affiliation(s)
- R Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
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20
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Balakrishnan A, Chakravortty D. Epithelial Cell Damage Activates Bactericidal/Permeability Increasing-Protein (BPI) Expression in Intestinal Epithelium. Front Microbiol 2017; 8:1567. [PMID: 28861073 PMCID: PMC5559428 DOI: 10.3389/fmicb.2017.01567] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/02/2017] [Indexed: 12/18/2022] Open
Abstract
As the first line of defense against invading pathogen, intestinal epithelium produces various antimicrobial proteins (AMP) that help in clearance of pathogen. Bactericidal/permeability-increasing protein (BPI) is a 55 kDa AMP that is expressed in intestinal epithelium. Dysregulation of BPI in intestinal epithelium is associated with various inflammatory diseases like Crohn's Disease, Ulcerative colitis, and Infectious enteritis's. In this paper, we report a direct correlation between intestinal damage and BPI expression. In Caco-2 cells, we see a significant increase in BPI levels upon membrane damage mediated by S. aureus infection and pore-forming toxins (Streptolysin and Listeriolysin). Cells detect changes in potassium level as a Danger-associated molecular pattern associated with cell damage and induce BPI expression in a p38 dependent manner. These results are further supported by in vivo findings that the BPI expression in murine intestinal epithelium is induced upon infection with bacteria which cause intestinal damage (Salmonella Typhimurium and Shigella flexneri) whereas mutants that do not cause intestinal damage (STM ΔfliC and STM ΔinvC) did not induce BPI expression. Our results suggest that epithelial damage associated with infection act as a signal to induce BPI expression.
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Affiliation(s)
- Arjun Balakrishnan
- Department of Microbiology and Cell Biology, Indian Institute of ScienceBangalore, India
| | - Dipshikha Chakravortty
- Department of Microbiology and Cell Biology, Indian Institute of ScienceBangalore, India.,Centre for Biosystems Science and Engineering, Indian Institute of ScienceBangalore, India
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21
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N-glycosylation of human sphingomyelin phosphodiesterase acid-like 3A (SMPDL3A) is essential for stability, secretion and activity. Biochem J 2017; 474:1071-1092. [PMID: 28104755 DOI: 10.1042/bcj20160735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 01/14/2017] [Accepted: 01/18/2017] [Indexed: 11/17/2022]
Abstract
Sphingomyelin phosphodiesterase acid-like 3A (SMPDL3A) is a recently identified phosphodiesterase, which is a secreted N-linked glycoprotein. SMPDL3A is highly homologous to acid sphingomyelinase (aSMase), but unlike aSMase cannot cleave sphingomyelin. Rather, SMPDL3A hydrolyzes nucleotide tri- and diphosphates and their derivatives. While recent structural studies have shed light on these unexpected substrate preferences, many other aspects of SMPDL3A biology, which may give insight into its function in vivo, remain obscure. Here, we investigate the roles of N-glycosylation in the expression, secretion and activity of human SMPDL3A, using inhibitors of N-glycosylation and site-directed mutagenesis, with either THP-1 macrophages or CHO cells expressing human SMPDL3A. Tunicamycin (TM) treatment resulted in expression of non-glycosylated SMPDL3A that was not secreted, and was largely degraded by the proteasome. Proteasomal inhibition restored levels of SMPDL3A in TM-treated cells, although this non-glycosylated protein lacked phosphodiesterase activity. Enzymatic deglycosylation of purified recombinant SMPDL3A also resulted in significant loss of phosphodiesterase activity. Site-directed mutagenesis of individual N-glycosylation sites in SMPDL3A identified glycosylation of Asn69 and Asn222 as affecting maturation of its N-glycans and secretion. Glycosylation of Asn356 in SMPDL3A, an N-linked site conserved throughout the aSMase-like family, was critical for protection against proteasomal degradation and preservation of enzymatic activity. We provide the first experimental evidence for a predicted 22 residue N-terminal signal peptide in SMPDL3A, which is essential for facilitating glycosylation and is removed from the mature protein secreted from CHO cells. In conclusion, site-specific N-glycosylation is essential for the intracellular stability, secretion and activity of human SMPDL3A.
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Immunomodulation in the canine endometrium by uteropathogenic Escherichia coli. Vet Res 2016; 47:114. [PMID: 27829462 PMCID: PMC5103487 DOI: 10.1186/s13567-016-0396-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 09/14/2016] [Indexed: 01/03/2023] Open
Abstract
This study was designed to evaluate the role of E. coli α-hemolysin (HlyA) in the pathogenesis of canine pyometra, and on the immune response of canine endometrial epithelial and stromal cells. In Experiment 1, the clinical, hematological, biochemical and uterine histological characteristics of β-hemolytic and non-hemolytic E. coli pyometra bitches were compared. More (p < 0.05) metritis cases were observed in β-hemolytic E. coli pyometra uteri than in non-hemolytic E. coli pyometra uteri. β-hemolytic E. coli pyometra endometria had higher gene transcription of IL-1β and IL-8 and lower gene transcription of IL-6 than non-hemolytic E. coli pyometra endometria (p < 0.01). In Experiment 2, the immune response of endometrial epithelial and stromal cells, to hemolytic (Pyo18) and non-hemolytic E. coli strains (Pyo18 with deleted hlya-Pyo18ΔhlyA- and Pyo14) were compared. Following 4 h of incubation, Pyo18 decreased epithelial cell numbers to 54% (p < 0.001), and induced death of all stromal cells (p < 0.0001), whereas Pyo18ΔhlyA and Pyo14 had no effect on cell numbers. Compared to Pyo18ΔhlyA and Pyo14, respectively, Pyo18 induced a lower transcription level of IL-1β (0.99 vs 152.0 vs 50.9 fold increase, p < 0.001), TNFα (3.2 vs 49.9 vs 12.9 fold increase, p < 0.05) and IL-10 (0.4 vs 3.6 vs 2.6 fold increase, p < 0.001) in stromal cells, after 1 h of incubation. This may be seen as an attempt of hemolytic E. coli to delay the activation of the immune response. In conclusion, endometrial epithelial and stromal cell damage induced by HlyA is a potential relevant step of E. coli virulence in the pathogenesis of pyometra.
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Affiliation(s)
- R Hagman
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
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24
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Identifying diagnostic endocrine markers and changes in endometrial gene expressions during pyometra in cats. Reprod Biol 2016; 16:174-80. [PMID: 27288342 DOI: 10.1016/j.repbio.2015.12.003] [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: 07/29/2015] [Revised: 12/04/2015] [Accepted: 12/27/2015] [Indexed: 11/22/2022]
Abstract
Pyometra is a significant reproductive problem in cats. The aims of this study were to evaluate (i) the immunological profile of queens by studying plasma concentrations of metabolites of prostacyclin I2 (6-keto-PGF1α), leukotriene B4 (LTB4) and leukotriene C4 (LTC4); and (ii) the gene transcription profiles of Toll-like receptors (TLRs) 2 and 4 (TLR2/4), PGE2-synthase (PGES), PGF2α-synthase (PGFS) and prostaglandin-endoperoxide synthase 2 (PTGS2) in the feline endometrium throughout the estrous cycle, after medroxyprogesterone acetate (MPA) treatment and during pyometra. The concentration of plasma 6-keto-PGF1α in pyometra was increased in comparison to other groups studied (p<0.01). Endometrial mRNA coding for TLR2 was up-regulated in cats suffering from pyometra compared to other groups (p<0.001). Expression of mRNA for TLR4 was up-regulated in endometria originating from MPA-treated cats, pyometra and late diestrus cats, compared with tissues from cats during estrus and anestrus (p<0.05). As expected, endometrial mRNA for PTGS2 was up-regulated only in pyometra, compared with other groups (p<0.001). Similarly, endometrial mRNA for PGFS was up-regulated in pyometra, compared with endometria from anestrus, late diestrus and from MPA-treated cats (p<0.05), or from cats during estrus (p<0.01). Overall, these results indicate that plasma concentrations of LTB4 and LTC4 are not useful diagnostic markers since they were not increased in queens with pyometra, in contrast to 6-keto-PGF1α. In addition, treatment with MPA evoked neither endocrine nor molecular changes in endometria of cats.
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25
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Jursza-Piotrowska E, Siemieniuch MJ. Comparison of the effect of lipopolysaccharide on tumor necrosis factor α (TNF-α) secretion and TNF and TNFR1 mRNA levels in feline endometrium throughout the estrous cycle during pyometra and after medroxyprogesterone acetate treatment. J Reprod Dev 2016; 62:385-91. [PMID: 27097764 PMCID: PMC5004795 DOI: 10.1262/jrd.2016-002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Endotoxins released by Gram-negative bacteria are potent stimulators of tumor
necrosis factor α (TNF-α) production. The objectives of this study were to evaluate
plasma levels of TNF-α, TNF-α secretion, and mRNA levels of TNF and
TNF-α receptor type 1 (TNFR1) following exposure to
lipopolysaccharide (LPS). For this, we used cultured endometrial cells or organ
cultures, throughout the estrous cycle, after hormone treatment with
medroxyprogesterone acetate (MPA), and during pyometra. Plasma TNF-α concentrations
were increased in animals at estrus (P < 0.05) compared to other groups. In the
LPS-challenged endometrium, secretion of TNF-α by tissues collected during estrus
increased (P < 0.001) compared to that of other groups. LPS, alone or combined
with TNF-α, upregulated TNF gene expression in the feline
endometrium at diestrus (P < 0.001 for both treatments), in queens treated
short-term with MPA (P < 0.01 and P < 0.05, respectively) and in queens treated
long-term with MPA (P < 0.01 and P < 0.001, respectively). During pyometra,
TNF and TNFR1 mRNA were increased only after
tissues were challenged with TNF-α and LPS (P < 0.001 and P < 0.01,
respectively). When cultured endometrial cells were challenged with LPS, the
concentration of TNF-α increased only in epithelial cells after 4 h and 12 h (P <
0.05 and P < 0.01, respectively). Since LPS did not affect stromal cells, but
TNF-α increased its own transcript after 2 h (P < 0.01), 4 h (P < 0.05) and 12
h (P < 0.001), we assume that stromal cells are not directly involved in pathogen
recognition, as was the case for epithelial cells.
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Affiliation(s)
- Ewelina Jursza-Piotrowska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
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Karlsson I, Hagman R, Johannisson A, Wang L, Södersten F, Wernersson S. Multiplex cytokine analyses in dogs with pyometra suggest involvement of KC-like chemokine in canine bacterial sepsis. Vet Immunol Immunopathol 2016; 170:41-6. [PMID: 26837616 DOI: 10.1016/j.vetimm.2016.01.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 12/18/2015] [Accepted: 01/18/2016] [Indexed: 12/17/2022]
Abstract
Clinical diagnostic criteria for sepsis (systemic inflammatory response syndrome caused by infection) are unspecific and, therefore, biomarkers for sepsis diagnosis are needed for appropriate treatment and patient survival. Pyometra, a common disease caused by bacterial infection of the uterus, results in sepsis in nearly 60% of cases in dogs. We used dogs with pyometra as a natural model for sepsis and collected serum samples from 39 dogs, of which 22 with pyometra and 17 healthy controls. Dogs with pyometra were further grouped into dogs with sepsis (n=18) and without sepsis (n=4). Serum concentrations of a panel of cytokines, including keratinocyte-derived chemokine (KC)-like, granulocyte-macrophages colony stimulating factor (GM-CSF), interleukin (IL)-2, IL-4, IL-6, IL-7, IL-8, IL-10, IL-15, IL-18, chemokine C-X-C motif ligand (CXCL)10 and tumor necrosis factor (TNF)-α, were measured using multiplex analyses. Serum C-reactive protein (CRP) levels were determined using an automated immunoturbidimetric assay. In addition to physical examination hematological and serum biochemical analyses were performed to evaluate the overall status of the dogs. Significantly higher concentrations of KC-like (757 vs 304 pg/ml) were detected in dogs with pyometra as compared to healthy dogs. Within the pyometra group, dogs with sepsis compared to dogs without sepsis had a higher KC-like concentration (873 vs 300 pg/ml). Hemoglobin levels were significantly lower in dogs with pyometra compared to healthy dogs, regardless of the presence or absence of sepsis, and correlated negatively with KC-like. KC-like concentrations correlated positively with CRP, number of hospitalization days, number of monocytes, concentrations of IL-8, and percentage band neutrophils. Our data suggest that bacterial infection triggers the expression of KC-like and further studies are warranted of KC-like as a possible biomarker for diagnosing sepsis and uterine bacterial infection in dogs.
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Affiliation(s)
- Iulia Karlsson
- Dept of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, SE-75007 Uppsala, Sweden
| | - Ragnvi Hagman
- Dept of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-75007 Uppsala, Sweden
| | - Anders Johannisson
- Dept of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-75007 Uppsala, Sweden
| | - Liya Wang
- Dept of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, SE-75007 Uppsala, Sweden
| | - Fredrik Södersten
- Dept of Biomedical Science and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-75007 Uppsala, Sweden
| | - Sara Wernersson
- Dept of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, SE-75007 Uppsala, Sweden.
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27
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Marth CD, Young ND, Glenton LY, Noden DM, Browning GF, Krekeler N. Deep sequencing of the uterine immune response to bacteria during the equine oestrous cycle. BMC Genomics 2015; 16:934. [PMID: 26572250 PMCID: PMC4647707 DOI: 10.1186/s12864-015-2139-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/23/2015] [Indexed: 11/14/2022] Open
Abstract
Background The steroid hormone environment in healthy horses seems to have a significant impact on the efficiency of their uterine immune response. The objective of this study was to characterize the changes in gene expression in the equine endometrium in response to the introduction of bacterial pathogens and the influence of steroid hormone concentrations on this expression. Methods Endometrial biopsies were collected from five horses before and 3 h after the inoculation of Escherichia coli once in oestrus (follicle >35 mm in diameter) and once in dioestrus (5 days after ovulation) and analysed using high-throughput RNA sequencing techniques (RNA-Seq). Results Comparison between time points revealed that 2422 genes were expressed at significantly higher levels and 2191 genes at significantly lower levels 3 h post inoculation in oestrus in comparison to pre-inoculation levels. In dioestrus, the expression of 1476 genes was up-regulated and 383 genes were down-regulated post inoculation. Many immune related genes were found to be up-regulated after the introduction of E. coli. These include pathogen recognition receptors, particularly toll-like receptors TLR2 and 4 and NOD-like receptor NLRC5. In addition, several interleukins including IL1B, IL6, IL8 and IL1ra were significantly up-regulated. Genes for chemokines, including CCL 2, CXCL 6, 9, 10, 11 and 16 and those for antimicrobial peptides, including secretory phospholipase sPLA2, lipocalin 2, lysozyme and equine β-defensin 1, as well as the gene for tissue inhibitor for metalloproteinases TIMP-1 were also up-regulated post inoculation. Conclusion The results of this study emphasize the complexity of an effective uterine immune response during acute endometritis and the tight balance between pro- and anti-inflammatory factors required for efficient elimination of bacteria. It is one of the first high-throughput analyses of the uterine inflammatory response in any species and several new potential targets for treatment of inflammatory diseases of the equine uterus have been identified. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2139-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christina D Marth
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia.
| | - Neil D Young
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia.
| | - Lisa Y Glenton
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia.
| | - Drew M Noden
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853-6401, USA.
| | - Glenn F Browning
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia.
| | - Natali Krekeler
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia.
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Haas M, Kaup FJ, Neumann S. Canine pyometra: a model for the analysis of serum CXCL8 in inflammation. J Vet Med Sci 2015; 78:375-81. [PMID: 26522810 PMCID: PMC4829503 DOI: 10.1292/jvms.15-0415] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Interleukin-8 (IL-8 or CXCL8) is a highly selective pro-inflammatory chemokine,
that is elevated in sera of humans and animals with various inflammatory diseases. CXCL8
is possibly involved in uncontrolled inflammation and the development of a systemic
inflammatory response syndrome (SIRS) and sepsis. Nevertheless, its behavior and precise
properties in the course of inflammation are not fully understood. Thus, we used naturally
occurring canine pyometra as a model of inflammation, in order to examine the behavior of
serum CXCL8 in relation to the disease intensity and commonly analyzed inflammatory
mediators. Using a commercially available canine ELISA kit, a significant increase of
CXCL8 was determined in the serum of 23 dogs with pyometra compared with 35 healthy dogs.
Interestingly, serum CXCL8 did not increase in severely diseased patients and behaved
contrary to white blood cells (WBC), neutrophils and C-reactive protein (CRP). The
measurement of serum CXCL8 may provide valuable information about the extent of ongoing
lesions and could be a useful complement for existing laboratory tests.
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Affiliation(s)
- Melanie Haas
- Institute of Veterinary Medicine, Georg August University of Göttingen, Burckhardtweg 2, D-37077 Göttingen, Germany
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29
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Voorwald FA, Marchi FA, Villacis RAR, Alves CEF, Toniollo GH, Amorim RL, Drigo SA, Rogatto SR. Molecular Expression Profile Reveals Potential Biomarkers and Therapeutic Targets in Canine Endometrial Lesions. PLoS One 2015. [PMID: 26222498 PMCID: PMC4519320 DOI: 10.1371/journal.pone.0133894] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Cystic endometrial hyperplasia (CEH), mucometra, and pyometra are common uterine diseases in intact dogs, with pyometra being a life threatening disease. This study aimed to determine the gene expression profile of these lesions and potential biomarkers for closed-cervix pyometra, the most severe condition. Total RNA was extracted from 69 fresh endometrium samples collected from 21 healthy female dogs during diestrus, 16 CEH, 15 mucometra and 17 pyometra (eight open and nine closed-cervixes). Global gene expression was detected using the Affymetrix Canine Gene 1.0 ST Array. Unsupervised analysis revealed two clusters, one mainly composed of diestrus and CEH samples and the other by 12/15 mucometra and all pyometra samples. When comparing pyometra with other groups, 189 differentially expressed genes were detected. SLPI, PTGS2/COX2, MMP1, S100A8, S100A9 and IL8 were among the top up-regulated genes detected in pyometra, further confirmed by external expression data. Notably, a particular molecular profile in pyometra from animals previously treated with exogenous progesterone compounds was observed in comparison with pyometra from untreated dogs as well as with other groups irrespective of exogenous hormone treatment status. In addition to S100A8 and S100A9 genes, overexpression of the inflammatory cytokines IL1B, TNF and IL6 as well as LTF were detected in the pyometra from treated animals. Interestingly, closed pyometra was more frequently detected in treated dogs (64% versus 33%), with IL1B, TNF, LBP and CXCL10 among the most relevant overexpressed genes. This molecular signature associated with potential biomarkers and therapeutic targets, such as CXCL10 and COX2, should guide future clinical studies. Based on the gene expression profile we suggested that pyometra from progesterone treated dogs is a distinct molecular entity.
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Affiliation(s)
- Fabiana Azevedo Voorwald
- Veterinary Clinic and Department of Surgery, São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | | | | | | | - Gilson Hélio Toniollo
- Veterinary Clinic and Department of Surgery, São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | - Renee Laufer Amorim
- Veterinary Clinic Department, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Sandra Aparecida Drigo
- Department of Urology, Faculty of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Silvia Regina Rogatto
- International Research Center (CIPE), A. C. Camargo Cancer Center, São Paulo, Brazil
- Department of Urology, Faculty of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- * E-mail:
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30
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Hagman R. Diagnostic and prognostic markers for uterine diseases in dogs. Reprod Domest Anim 2015; 49 Suppl 2:16-20. [PMID: 24947856 DOI: 10.1111/rda.12331] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Common uterine diseases in female dogs include cystic endometrial hyperplasia (CEH), mucometra, hydrometra and pyometra. It is important in clinical practice to recognize pyometra because it is potentially life-threatening due to the systemic illness induced by bacterial infection of the uterus. In contrast, the uterine content is sterile in CEH and mucometra/hydrometra, and clinical signs are mostly mild or absent. Optimal treatment depends on the type of uterine disease and its severity, but diagnosis and prognosis determination may be challenging and the diseases difficult to separate clinically. Diagnostic findings or biomarkers that may aid in the differentiation of the diseases are valuable, especially when several bitches are admitted with a fluid-filled uterus during night-time, and it has to be decided which patient to operate on first. Additionally, some variables may indicate outcome as measured by mortality or morbidity. If the uterus is not enlarged or fluid-filled, detection of uterine disease can be even more difficult. In this study, clinically useful variables with possible diagnostic or prognostic value for uterine diseases in dogs are discussed.
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Affiliation(s)
- R Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
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31
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Pathogenic Escherichia coli and lipopolysaccharide enhance the expression of IL-8, CXCL5, and CXCL10 in canine endometrial stromal cells. Theriogenology 2015; 84:34-42. [PMID: 25765298 DOI: 10.1016/j.theriogenology.2015.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 02/05/2015] [Accepted: 02/05/2015] [Indexed: 01/05/2023]
Abstract
Chemokines play a central role in cellular communication in response to bacterial infection. However, the knowledge of the chemokine responses to bacterial infections in dogs remains limited. Uterine bacterial infection (pyometra) is one of the most common bacterial diseases in dogs and causes sepsis in most of the cases. We have shown previously that dogs with pyometra have higher messenger RNA (mRNA) levels of chemokines in uterus. To assess whether the stromal part of the endometrium expresses chemokines in response to bacterial infection, we cultured endometrial stromal cells isolated from healthy dogs and exposed them to either live pathogenic Escherichia coli, isolated from the uterus of a dog with pyometra, or lipopolysaccharide. Changes in the mRNA expression of ELR(+) CXC chemokines, IL-8, CXCL5, CXCL7, and ELR(-) CXC chemokine, CXCL10, were measured after 24 hours using quantitative real-time polymerase chain reaction. Levels of IL-8, CXCL5, and CXCL10 were upregulated in endometrial stromal cells exposed to E coli and lipopolysaccharide, whereas the level of CXCL7 was decreased or unaffected. In addition, levels of IL-8 and CXCL5, but not CXCL7 or CXCL10, were significantly higher in dogs with pyometra than those in healthy dogs. Our findings show that pathogenic uterine-derived E coli induces a CXC chemokine response both in cultured endometrial stromal cells within 24 hours and in pyometra-affected uteri from dogs. Stromal cells could therefore play an important role in early neutrophil and T cell recruitment to the site of inflammation during gram-negative bacterial infection of the uterus. Further studies are needed to clarify the role of chemokines in host response to bacterial infection in dogs and the possibility of using chemokines as diagnostic parameters for bacterial infection in this species.
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Decreased plasma Chromogranin A361-372 (Catestatin) but not Chromogranin A17-38 (Vasostatin) in female dogs with bacterial uterine infection (pyometra). BMC Vet Res 2015; 11:14. [PMID: 25636335 PMCID: PMC4318355 DOI: 10.1186/s12917-015-0328-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 01/19/2015] [Indexed: 11/10/2022] Open
Abstract
Background Pyometra often induces systemic inflammatory response syndrome (SIRS) and early diagnosis is crucial for survival. Chromogranin A (CgA) is a neuroendocrine secretory protein that is co-released with catecholamines from the adrenal medulla and sympathetic nerve endings. A prognostic value of CgA has been found in humans that are critically ill or that have SIRS associated with infection. CgA has not yet been studied in dogs with bacterial infection. The aim of the study was to investigate CgA, measured by Chromogranin A361-372 (Catestatin; Cst) and Chromogranin A17-38 (Vasostatin; VS) in healthy dogs and in dogs with pyometra. Results Fifty dogs with pyometra, sampled prior to surgery and 64 healthy female dogs were included. In 19 pyometra cases, blood samples were also collected postoperatively. Concentrations of Cst and VS were measured in heparinised plasma and Cst also measured in EDTA plasma, by in-house radioimmunoassays. Student’s t-test and Wilcoxon two-sample test was used to test for differences between dog groups. Pre- and postoperative samples in dogs with pyometra were analysed by paired t-test. Pearson correlation was used to investigate associations of laboratory variables and hospitalization. P < 0.05 was considered significant. Concentrations of Cst were decreased in pyometra dogs (mean ± SE, 1.01 ± 0.05 nmol/L) compared to healthy dogs (mean ± SE, 1.70 ± 0.03 nmol/L) (p ≤ 0.0001). VS concentrations did not differ significantly between dogs with pyometra (0.40 ± 0.04 nmol/L) and healthy dogs (0.42 ± 0.03 nmol/L). Mean ± SE pre- and postoperative concentration of Cst (1.0 ± 0.04 nmol/L and 0.9 ± 0.2 nmol/L) and VS (0.36 ± 0.04 nmol/L and 0.36 ± 0.04 nmol/L) in dogs with pyometra did not differ significantly. Neither Cst nor VS concentrations were associated with duration of hospitalization and were not significantly different in the four dogs with pyometra that had prolonged (≥3 d) postoperative hospitalization. Conclusion Concentrations of Cst, but not VS, were decreased in pyometra. Cst and VS concentrations before and after ovariohysterectomy did not differ significantly and were not associated with duration of hospitalization. Further studies are warranted to evaluate a possible diagnostic or prognostic value for Cst and VS. Electronic supplementary material The online version of this article (doi:10.1186/s12917-015-0328-6) contains supplementary material, which is available to authorized users.
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33
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Karlsson I, Hagman R, Johannisson A, Wang L, Karlstam E, Wernersson S. Cytokines as immunological markers for systemic inflammation in dogs with pyometra. Reprod Domest Anim 2013; 47 Suppl 6:337-41. [PMID: 23279533 DOI: 10.1111/rda.12034] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/24/2012] [Indexed: 10/27/2022]
Abstract
Pyometra is a disease in dogs caused by bacterial infection of the uterus and resulting in SIRS (systemic inflammatory response syndrome) in nearly 6 of 10 cases. Clinical diagnostic criteria for SIRS are relatively unspecific, and biomarkers for the diagnosis of pyometra and SIRS in dogs are needed. Serum samples from 32 dogs were used in this study and grouped into dogs with pyometra and SIRS, dogs with pyometra without SIRS and healthy controls. The serum concentrations of IFN-γ, IL-4, IL-6, IL-7, IL-8, IL-10, IL-15, IL-18 and TNF-α were measured using multiplex analyses. The serum concentrations of CRP (C-reactive protein) were determined using sandwich ELISA. IL-7, IL-8, IL-15, IL-18 and TNF-α were detected in >94% of samples. IL-10 was detected in 28% of samples, and IL-4, IL-6 and IFN-γ were undetectable. Higher serum concentrations of IL-7 (p < 0.05) were detected in SIRS-positive dogs with pyometra (n = 13) as compared with healthy controls (n = 11). The concentrations of IL-8 were higher in SIRS-positive dogs with pyometra compared to the SIRS-negative group (n = 8; p < 0.05). Positive correlations of IL-15 with IL-18 (p < 0.0001) and with the concentrations of IL-7 (p < 0.0001 for both) were found, although there was no significant difference between groups. Furthermore, IL-15 correlated with concentrations of CRP (p < 0.05), which were higher in dogs with pyometra compared to controls (p < 0.0001). Our data suggest a role of several cytokines in the development of a systemic disease in dogs with pyometra and a possible diagnostic value for serum CRP, IL-7, IL-15 and IL-18 in canine SIRS caused by pyometra.
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Affiliation(s)
- I Karlsson
- Department of Anatomy, Physiology and Biochemistry, The Biomedical Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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34
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Dąbrowski R, Kostro K, Szczubiał M. Concentrations of C-reactive protein, serum amyloid A, and haptoglobin in uterine arterial and peripheral blood in bitches with pyometra. Theriogenology 2013; 80:494-7. [DOI: 10.1016/j.theriogenology.2013.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/16/2013] [Accepted: 05/16/2013] [Indexed: 10/26/2022]
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35
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Hagman R. Clinical and Molecular Characteristics of Pyometra in Female Dogs. Reprod Domest Anim 2012; 47 Suppl 6:323-5. [DOI: 10.1111/rda.12031] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/24/2012] [Indexed: 11/27/2022]
Affiliation(s)
- R Hagman
- Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala; Sweden
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36
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Oestrous cycle-related changes in production of Toll-like receptors and prostaglandins in the canine endometrium. J Reprod Immunol 2012; 96:45-57. [DOI: 10.1016/j.jri.2012.07.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/18/2012] [Accepted: 07/01/2012] [Indexed: 01/28/2023]
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37
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Zhou ZH, Chen T, Arora K, Hyams K, Kozlowski S. Complement C1 esterase inhibitor levels linked to infections and contaminated heparin-associated adverse events. PLoS One 2012; 7:e34978. [PMID: 22514695 PMCID: PMC3325920 DOI: 10.1371/journal.pone.0034978] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 03/08/2012] [Indexed: 11/18/2022] Open
Abstract
Activation of kinin-kallikrein and complement pathways by oversulfated-chondroitin-sulfate (OSCS) has been linked with recent heparin-associated adverse clinical events. Given the fact that the majority of patients who received contaminated heparin did not experience an adverse event, it is of particular importance to determine the circumstances that increase the risk of a clinical reaction. In this study, we demonstrated by both the addition and affinity depletion of C1inh from normal human plasma, that the level of C1inh in the plasma has a great impact on the OSCS-induced kallikrein activity and its kinetics. OSCS-induced kallikrein activity was dramatically increased after C1inh was depleted, while the addition of C1inh completely attenuated kallikrein activity. In addition, actual clinical infection can lead to increased C1inh levels. Plasma from patients with sepsis had higher average levels of functional C1inh and decreased OSCS-induced kallikrein activity. Lastly, descriptive data on adverse event reports suggest cases likely to be associated with contaminated heparin are inversely correlated with infection. Our data suggest that low C1inh levels can be a risk factor and high levels can be protective. The identification of risk factors for contact system-mediated adverse events may allow for patient screening and clinical development of prophylaxis and treatments.
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Affiliation(s)
- Zhao-Hua Zhou
- Division of Monoclonal Antibodies, Office of Pharmaceutical Sciences, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
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Kolset SO, Pejler G. Serglycin: a structural and functional chameleon with wide impact on immune cells. THE JOURNAL OF IMMUNOLOGY 2012; 187:4927-33. [PMID: 22049227 DOI: 10.4049/jimmunol.1100806] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Among the different proteoglycans expressed by mammals, serglycin is in most immune cells the dominating species. A unique property of serglycin is its ability to adopt highly divergent structures, because of glycosylation with variable types of glycosaminoglycans when expressed by different cell types. Recent studies of serglycin-deficient animals have revealed crucial functions for serglycin in a diverse array of immunological processes. However, its exact function varies to a large extent depending on the cellular context of serglycin expression. Based on these findings, serglycin is emerging as a structural and functional chameleon, with radically different properties depending on its exact cellular and immunological context.
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Affiliation(s)
- Svein O Kolset
- Department of Nutrition, University of Oslo, 0316 Oslo, Norway.
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Payan-Carreira R, Pires MA, Ström Holst B, Rodriguez-Martinez H. Tumour Necrosis Factor in the Canine Endometrium: An Immunohistochemical Study. Reprod Domest Anim 2010; 46:410-8. [DOI: 10.1111/j.1439-0531.2010.01681.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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