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Ausejo R, Falceto MV, Mitjana O, Garrido AM, Badiola JJ, Moreno B. Testicular tumors in commercial boars with infertility: A gross, histologic, and immunohistochemical study. Vet Pathol 2024:3009858241269836. [PMID: 39148404 DOI: 10.1177/03009858241269836] [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: 08/17/2024]
Abstract
Tumors in boars are uncommon, and testicular tumors even rarer. This study describes the pathological and immunohistochemical characteristics of a case series of testicular tumors in commercial boars with fertility problems. Tumors were detected in 19 of 333 animals (19/333, 5.9%). Macroscopically, tumors were observed in 13 (13/19, 68%) boars, while 6 cases (6/19, 32%) were only detected by microscopic examination. Testicular enlargement was observed in 1 boar, while in the others, tumors were only observed after removal of the scrotal skin or after sectioning of the testis. Histologically, tumors were classified as seminomas (16/19, 84%), mixed germ cell-stromal tumors (2/19, 11%), and B-cell lymphoma (1/19, 5%). Seminomas had 3 different growth patterns: intratubular (6/16, 38%), diffuse (4/16, 25%), and intratubular/diffuse (6/16, 38%). All tumors that were not evident on macroscopic examination were intratubular seminomas. Intratesticular metastases were observed in 2 cases and extratesticular metastases, located in the pampiniform plexus, were observed in 1 case. In 1 seminoma, the rete testis was also involved. By immunohistochemistry, all intratubular seminomas were negative for c-kit, cytokeratin, and vimentin. In diffuse seminomas, c-kit and cytokeratin were also negative, while vimentin showed granular or perinuclear cytoplasmic labeling in some areas. PAX-5 and CD-3 antibodies classified the lymphoma as a B-cell lymphoma. This study suggests that testicular tumors in boars may be more common than previously reported, especially when microscopic examination is performed. It also shows that testicular tumors in pigs are predominantly seminomas.
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Affiliation(s)
- Raquel Ausejo
- Department of Veterinary R&D, Magapor S.L., Ejea de los Caballeros, Spain
- Reproduction Unit, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
| | - María Victoria Falceto
- Reproduction Unit, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
- Agrifood Institute of Aragón (IA2), Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
| | - Olga Mitjana
- Reproduction Unit, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
- Agrifood Institute of Aragón (IA2), Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
| | - Ana María Garrido
- Reproduction Unit, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
| | - Juan José Badiola
- Agrifood Institute of Aragón (IA2), Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
- Research Center for TSE and Emerging Transmissible Diseases, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
| | - Bernardino Moreno
- Agrifood Institute of Aragón (IA2), Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
- Research Center for TSE and Emerging Transmissible Diseases, Pathology Department, Faculty of Veterinary Sciences, University of Zaragoza, Zaragoza, Spain
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2
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Roxon C, Slack J, Bender S, Burns H, Turner R. Multiple Sex Cord-stromal Tumors in a Standardbred Stallion Testis. J Equine Vet Sci 2023; 123:104246. [PMID: 36775076 DOI: 10.1016/j.jevs.2023.104246] [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: 12/06/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
A 12-year-old Standardbred stallion presented with a 5-month history of a growing mass in the left testis as well as an overall decrease in left testicular size. Palpation and ultrasonography of the left testis revealed a firm, hypoechoic, clearly delineated soft tissue mass in the craniolateral portion of the testis that measured 2.5 × 2.3 × 1.9 cm. Two smaller, hypoechoic regions also were visible ultrasonographically in the left testis, suggesting the presence of multifocal/multicentric neoplasia. The affected testis was very small (testicular volume of 40.3 cm3). The right testis was significantly larger (144.3 cm3), and the parenchyma was ultrasonographically normal. Due to the concern that these findings could indicate the presence of a more aggressive tumor type, unilateral orchiectomy was performed. Multiple soft tissue masses were identified grossly, and histopathologic evaluation identified the larger mass as a Sertoli cell tumor and the two smaller masses as mixed sex cord-stromal tumors with Sertoli cell and Leydig cell differentiation. To our knowledge, this the first report of concurrent Sertoli cell and mixed sex cord-stromal tumors in a single descended equine testis.
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Affiliation(s)
- Caroline Roxon
- Department of Clinical Studies (Roxon, Slack, Turner) and Department of Pathobiology (Bender) - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA
| | - JoAnn Slack
- Department of Clinical Studies (Roxon, Slack, Turner) and Department of Pathobiology (Bender) - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA
| | - Susan Bender
- Department of Clinical Studies (Roxon, Slack, Turner) and Department of Pathobiology (Bender) - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA
| | - Herb Burns
- Pine Bush Equine Services and Veterinary Hospital, Pine Bush, NY
| | - Regina Turner
- Department of Clinical Studies (Roxon, Slack, Turner) and Department of Pathobiology (Bender) - New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA.
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3
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Yuan L, Wang H, Yang H, Chen S, Yang D, Zhang Y. Expression of the NSE,SP,NFH and DβH in normal and cryptorchid testes of Bactrian camel. Anim Reprod 2022; 19:e20210087. [PMID: 35154438 PMCID: PMC8827324 DOI: 10.1590/1984-3143-ar2021-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022] Open
Abstract
Neuroendocrine substances play essential roles in regulating the normal physiological functions of testicles. The purpose of this study is to explore the localization and effects of four neuroendocrine markers (NSE, SP, NFH and DβH) in normal and cryptorchid testes of Bactrian camels using western blotting, transmission electron microscopy, immunohistochemistry, and immunofluorescence methods. The results showed that cryptorchidism caused a reduction in layers of spermatogenic epithelium and decreased glycogen positivity in the basement membrane. The ultrastructure revealed that macrophages were always found around the Leydig cells, crowded with swelling mitochondria in cryptorchidism. Expression of NSE in the Leydig cells of cryptorchidism was significantly weakened compared to that in the normal group(p<0.01). We found that SP was always distributed along the nerve fibers in normal testes and was expressed in the Leydig cells of cryptorchidism. However, expression of NFH in the cryptorchidic tissue was strongly positive in the spermatogenic epithelium, with limited expression in Leydig cells and no expression in peritubular myoid cells. Therefore, the expression of DβH in the Sertoli cells was comparatively strong in both the normal and cryptorchidism groups. NFH and DβH expression was significantly increased in the cryptorchidism group compared with the normal group (p<0.01). These findings indicated that the underdeveloped seminiferous epithelium and pathological changes in cryptorchid tissue in Bactrian camels were potentially related to a disorder in glycoprotein metabolism. Our results suggest that NSE and SP could help judge the pathological changes of cryptorchidism. The present study provides the first evidence at the protein level for the existence of NFH and DβH in Sertoli and Leydig cells in Bactrian camel cryptorchidism and provides a more in-depth understanding of neuroendocrine regulation is crucial for animal cryptorchidism.
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Affiliation(s)
| | - Hua Wang
- Gansu Agricultural University, China
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4
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Daggett J, Hawkins S, Phair K, West G, Place NJ, Struthers JD. Pathology in Practice. J Am Vet Med Assoc 2021; 257:599-602. [PMID: 32857005 DOI: 10.2460/javma.257.6.599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Sirri R, Tura G, Budai J, Beraldo P, Fiorentino M, Barbé T, Galeotti M, Sarli G, Mandrioli L. Histological and immunohistochemical characterization of 17 gonadal tumours in koi carp (Cyprinus carpio koi). JOURNAL OF FISH DISEASES 2021; 44:273-285. [PMID: 33098685 DOI: 10.1111/jfd.13280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Reports on abdominal tumours in koi carp are scarce and most are from the gonads. Their histological diagnosis is challenging due to the occurrence of mixed populations of neoplastic cells and the few availability of cross-reactive antibodies in fish tissues. The present study aims to provide a histopathological characterization of seventeen gonadal tumours, enriched by a wide antibody panel (vimentin, CD117, placental alkaline phosphatase-PLAP, AE1/AE3 cytokeratin, E-cadherin, proliferating cell nuclear antigen-PCNA, müllerian-inhibiting substance-MIS, GATA4 and Inhibin-α) applied on whole and tissue microarray (TMA) sections. Abdominal enlargement was associated with tumours filling 30%-80% of the abdominal cavity; frequently, the gonads had been completely replaced by neoplastic tissue. Twelve cases were characterized as sex cord-stromal tumours (SCSTs), three as germ cell tumours (GCTs), one as mixed germ cell sex cord-stromal tumour (MGCSCST) and one as carcinoma. By immunohistochemistry, PLAP enabled confirmation of GCTs, ovarian carcinoma and the objective identification of a further cell component in 8 out of the 12 SCSTs that were reclassified as mixed tumours. The use of an immunohistochemical panel can help in refining the histological diagnosis, but the morphological diagnosis still represents the main tool for the characterization of these tumours in koi carp.
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Affiliation(s)
- Rubina Sirri
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Giorgia Tura
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Jane Budai
- Department of Agrifood, Environmental and Animal Science, University of Udine, Udine, Italy
| | - Paola Beraldo
- Department of Agrifood, Environmental and Animal Science, University of Udine, Udine, Italy
| | - Michelangelo Fiorentino
- Department of Experimental, Diagnostic and Specialty Medicine DIMES, University of Bologna, Bologna, Italy
| | | | - Marco Galeotti
- Department of Agrifood, Environmental and Animal Science, University of Udine, Udine, Italy
| | - Giuseppe Sarli
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Luciana Mandrioli
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
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Urfer SR, Kaeberlein M. Desexing Dogs: A Review of the Current Literature. Animals (Basel) 2019; 9:E1086. [PMID: 31817504 PMCID: PMC6940997 DOI: 10.3390/ani9121086] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/30/2019] [Accepted: 12/02/2019] [Indexed: 12/23/2022] Open
Abstract
Background: Desexing dogs is promoted for population control, preventative healthcare, and behavior modification. Common methods are orchiectomy and ovariectomy/ovariohysterectomy. GnRH superagonist implants are available in some areas. Alternative methods like vasectomy and salpingectomy/hysterectomy are uncommon. The terminology used to describe desexing is inconsistent and contradictory, showing a need for the adaption of standardized terminology. Population Control: Surprisingly, empirical studies show no effects of desexing on population control in companion and shelter dogs despite desexing being consistently recommended in the literature. There is evidence for a population control effect in free-roaming dogs, where desexing also has benefits on zoonotic disease and bite risk. Population control in free-roaming dogs is mostly correlated with female, not male desexing. Health and Lifespan: Desexing affects numerous disease risks, but studies commonly neglect age at diagnosis and overall lifespan, age being by far the most important risk factor for most diseases. We argue that lifespan is a more important outcome than ultimate cause of death. A beneficial effect of desexing on lifespan is consistently demonstrated in females, while evidence for a beneficial effect in males is inconsistent. Studies are likely biased in desexing being a proxy for better care and desexed dogs having already lived to the age of desexing. Desexing reduces or eliminates common life-limiting diseases of the female reproductive system such as pyometra and mammary tumors, while no analogous effect exists in males. Disease risks increases across sexes and breeds include cruciate ligament rupture, various cancers, and obesity. Urinary incontinence risk is increased in females only. Various other disease risk changes show considerable variability between breeds and sexes. Behavioral Effects: Desexed males show reduced libido, roaming, conspecific mounting, and urinary marking frequency, as well as reduced male dog-directed aggression in a majority of males desexed for behavioral reasons. There is a detrimental effect on the risk and progression of age-related cognitive dysfunction. Desexed dogs may be less likely to cause bite injuries across sexes. The evidence for other effects such as human-directed aggression, human or object mounting, resource guarding, or shyness and anxiety is inconsistent and contradictory. There are few studies specific to females or individual breeds. Conclusions: The evidence for a beneficial effect of desexing is stronger in female than in male dogs; however, there is significant variation between breeds and sexes, and more research is needed to further elucidate these differences and to arrive at individualized evidence-based recommendations for clinical practice.
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Affiliation(s)
- Silvan R. Urfer
- Dog Aging Project, Department of Pathology, University of Washington, Seattle, WA 98195, USA
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7
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Kudo T, Kamiie J, Aihara N, Doi M, Sumi A, Omachi T, Shirota K. Malignant Leydig cell tumor in dogs: two cases and a review of the literature. J Vet Diagn Invest 2019; 31:557-561. [PMID: 31248354 PMCID: PMC6857010 DOI: 10.1177/1040638719854791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Malignant Leydig cell tumor (MLCT) is a rare testicular tumor in dogs. We report herein 2 dogs with MLCT and cutaneous metastasis. Grossly, marked enlargement and distortion of the involved testes were noted; on cut surface, the parenchyma was completely replaced by neoplastic tissue. In addition, these tumors had extensive necrosis and hemorrhage. Case 1 had a rapidly growing cutaneous mass in the left angle of the mouth; the lesion was well-circumscribed and had an indistinct lobular pattern. Case 2 had multiple cutaneous masses in the dorsal neck region, the thoracic back region, and the right hindlimb. Microscopically, the tumor lobules were composed of oval-to-polyhedral cells with eosinophilic cytoplasm and resembled testicular tumors. By immunohistochemistry, the neoplastic cells in both the testicular and cutaneous tumors were positive for inhibin-alpha and melan A. The mitotic counts of the primary tumors from cases 1 and 2 were 21 and 11 per 10 high-power fields, respectively. Based on these findings, the cases were diagnosed as MLCT with cutaneous metastasis. Ki-67 expression in the neoplastic cells of the 2 cases was higher than in benign Leydig cell tumors. Our findings may be helpful for the diagnosis of canine MLCT.
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Affiliation(s)
- Tomoo Kudo
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Junichi Kamiie
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Naoyuki Aihara
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Masaki Doi
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Ayumi Sumi
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Tetsuo Omachi
- PATHO LABO, Shizuoka, Japan
- Laboratory of Veterinary Pathology, School
of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Kinji Shirota
- Kinji Shirota,
Laboratory of Veterinary Pathology, Azabu University, 1-17-71
Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
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8
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Horňáková Ľ, Dianovský J, Holečková B, Šiviková K. A comprehensive study of disorder of sex development in Staffordshire bull terrier dog. Reprod Domest Anim 2019; 54:928-935. [PMID: 30903716 DOI: 10.1111/rda.13429] [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: 11/16/2018] [Revised: 03/01/2019] [Accepted: 03/07/2019] [Indexed: 01/01/2023]
Abstract
An 8-month-old female Staffordshire bull terrier was clinically examined because of external sexual organs abnormality-clitoral hypertrophy. As stated by the owner, the female dog had not been in heat yet. Serum profile of testosterone (3.39 ng/ml), as well as an anti-Műllerian hormone (24.0 ng/ml), suggested the presence of testicular tissue. On the contrary, the estimated level of 17β-oestradiol (24.6 pg/ml) was approximately two times higher when compared with the normal anoestrus values (5-10 pg/ml). A midline laparotomy was performed to detect the cranial parts of the genital system. Gonads resembling testicle or ovotestis (left) and hypoplastic testicle (right) was visible. Cranial portion of gonads was attached to structures indicative of bilateral epididymidis. The next tubular structures-oviducts were resected along with adherent parts of a hypoplastic uterus. Histological evaluation confirmed that the examined gonad samples were testicles with modified interstitial testicular tissue. Hypertrophy of interstitial space was predominantly formed by Leydig cells. Examination of a cross-section through the head of suspected epididymidis confirmed their characteristic structures. In addition, the characteristic configuration of the oviducts was presented. The uterus consisted of three walls, in which the endometrium was hypoplastic with the presence of endometrial glands. No Y chromosome was detected by chromosomal analysis using CFA Y probe and the amplification of SRY-gene coding region (813 bp) indicated genotype 78, XX; SRY-negative. Sequencing of SOX9 gene exons 1-3 did not reveal any differences in exon 1 and 3. On the contrary, a few changes were determined in the SOX9 exon 2 sequences: G instead of A at position 103; C instead of reference T at position 115; GCG instead of reference CGC at position 138-140; T instead of reference C at positions 161, 164 and 167.
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Affiliation(s)
- Ľubica Horňáková
- Clinics of Small Animals, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Ján Dianovský
- Department of Biology and Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Beáta Holečková
- Department of Biology and Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
| | - Katarína Šiviková
- Department of Biology and Genetics, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
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Webb JK, Reavill DR, Garner MM, Kiupel M, Graham JE. Characterization of Testicular Granular Cell Tumors in Domestic Rabbits (Oryctolagus Cuniculus). J Exot Pet Med 2019. [DOI: 10.1053/j.jepm.2018.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Kawata R, Ii T, Hori T, Machida Y, Ochiai K, Azakami D, Ishiwata T, Michishita M. Leydig cell tumor in an Amur tiger (Panthera tigris altaica). J Vet Med Sci 2019; 81:186-189. [PMID: 30541983 PMCID: PMC6395220 DOI: 10.1292/jvms.18-0573] [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] [Indexed: 12/05/2022] Open
Abstract
A 14-year and 8-month-old intact male Amur tiger presented with an enlarged left testis,
measuring 5.7 × 5.5 × 4.5 cm. The cut surface was mottled dark red to reddish brown in
color. Microscopically, the enlarged left testis comprised round or polygonal neoplastic
cells arranged in a diffuse sheet pattern. These neoplastic cells had a hyperchromatic
nucleus and an abundant eosinophilic cytoplasm. Immunohistochemically, these neoplastic
cells were positive for vimentin, chromogranin A, synaptophysin, melan-A, inhibin-α, and
S100 and negative for desmin and WT-1. Based on these morphological and
immunohistochemical findings, the tumor was diagnosed as a Leydig cell tumor.
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Affiliation(s)
- Risako Kawata
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Tatsuhito Ii
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Tatsuya Hori
- Department of Veterinary Reproduction, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
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11
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Rotstein DS, Stimmelmayr R, Adams B, Pederson M. Metastatic testicular Sertoli cell tumor in a free-ranging cryptorchid adult spotted seal Phoca largha in North Slope, Alaska, USA. DISEASES OF AQUATIC ORGANISMS 2019; 133:1-5. [PMID: 30997879 DOI: 10.3354/dao03338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This case describes a metastatic Sertoli cell tumor (SCT) with lymphatic spread to the abdominal and thoracic lymph nodes, pancreas, and adrenal gland in an adult spotted seal Phoca largha. The neoplasm was composed of tubules lined by palisading neoplastic cells separated by a variably dense fibrous stroma. This pinniped was 1 of 2 cryptorchid seals and the sole case of genital neoplasia among 70 ice seals necropsied by the North Slope Borough from 2012 to 2017. Overall, SCTs are rarely reported in marine mammals.
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12
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Shimizu N, Matsuda M. Identification of a Novel Zebrafish Mutant Line that Develops Testicular Germ Cell Tumors. Zebrafish 2018; 16:15-28. [PMID: 30300574 DOI: 10.1089/zeb.2018.1604] [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] [Indexed: 11/12/2022] Open
Abstract
Testicular tumors are the most common solid malignant tumors in men 20-35 years of age. Although most of testicular tumors are curable, current treatments still fail in 15%-20% of patients. However, insufficient understanding of the molecular basis and lack of animal models limit development of more effective treatments. This study reports the identification of a novel zebrafish mutant line, ns1402, which develops testicular germ cell tumors (TGCTs). While both male and female ns1402 mutants were fertile at young age, male ns1402 mutants became infertile as early as 9 months of age. This infertility was associated with progressive loss of mature sperm. Failure of spermatogenesis was, at least in part, explained by progressive loss of mature Leydig cells, a source of testosterone that is essential for spermatogenesis. Interestingly, TGCTs in ns1402 mutants contained a large number of Sertoli cells and gene expression profiles of Sertoli cells were altered before loss of mature Leydig cells. This suggests that changes in Sertoli cell properties happened first, followed by loss of mature Leydig cells and failure of spermatogenesis. Taken together, this study emphasizes the importance of cell-cell interactions and cell signaling in the testis for spermatogenesis and tissue homeostasis.
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Affiliation(s)
- Nobuyuki Shimizu
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey
| | - Miho Matsuda
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey
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13
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Canadas A, Romão P, Gärtner F. Multiple Cutaneous Metastasis of a Malignant Leydig Cell Tumour in a Dog. J Comp Pathol 2016; 155:181-184. [DOI: 10.1016/j.jcpa.2016.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/10/2016] [Accepted: 05/18/2016] [Indexed: 11/25/2022]
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14
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Mizukami S, Murakami T, Tanaka T, Machida N, Nomura K, Yoshida T, Shibutani M. Spermatogonial Nature of the Germ Cell Component of Canine Testicular Mixed Germ Cell-Sex Cord Stromal Tumours. J Comp Pathol 2016; 155:5-14. [PMID: 27241073 DOI: 10.1016/j.jcpa.2016.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 03/31/2016] [Accepted: 04/10/2016] [Indexed: 10/21/2022]
Abstract
The present study has characterized the germ cell component of canine testicular mixed germ cell-sex cord stromal tumours (MGSCTs) by examining the histological nature and histochemical and immunohistochemical features using gonocytic and spermatogonial cellular markers, c-Kit, placental alkaline phosphatase (PLAP), protein gene product 9.5 (PGP9.5), Sal-like protein 4 (SALL4), and the periodic acid-Schiff (PAS) reaction. Histologically, all 45 examples of MGSCTs were classified as spermatocytic seminomas (SSs) and Sertoli cell tumours in combination. The germ cell component of all MGSCTs was negative by PAS staining. Immunohistochemically, PLAP immunoreactivity was lacking in the germ cell component of all MGSCTs, which is not consistent with a gonocytic origin. The germ cell component was positive for PGP9.5 and SALL4 in all MGSCTs and positive for c-Kit in 53% of MGSCTs, which is consistent with the phenotype of spermatogonia. Furthermore, the germ cell component in 71% of MGSCTs had moderate immunoreactivity for SALL4, which is suggestive of a spermatogonial phenotype. Conversely, 29% of cases had a minor population of germ cells showing strong SALL4 immunoreactivity, suggesting a phenotype similar to prespermatogonia. The results suggest that the germ cell component of canine MGSCTs is morphologically classified as SS, with the majority of cases showing the spermatogonial phenotype and some cases containing a small population of prespermatogonia.
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Affiliation(s)
- S Mizukami
- Laboratory of Veterinary Pathology, Japan; Pathogenetic Veterinary Science, United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - T Murakami
- Laboratory of Veterinary Toxicology, Japan
| | - T Tanaka
- Laboratory of Veterinary Pathology, Japan; Pathogenetic Veterinary Science, United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - N Machida
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - K Nomura
- Veterinary Diagnostic Laboratory, Marupi Lifetech Co. Ltd., Osaka, Japan
| | - T Yoshida
- Laboratory of Veterinary Pathology, Japan
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15
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Histopathological pattern of gonads in cases of sex abnormalities in dogs: An attempt of morphological evaluation involving potential for neoplasia. Pathol Res Pract 2015; 211:772-5. [DOI: 10.1016/j.prp.2015.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/09/2015] [Accepted: 07/10/2015] [Indexed: 11/22/2022]
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16
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Kubiak M, Jayson SL, Denk D. Ovarian interstitial cell tumour in a Mongolian gerbil (Meriones unguiculatus). VETERINARY RECORD CASE REPORTS 2015. [DOI: 10.1136/vetreccr-2015-000182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Marie Kubiak
- Department of Zoo and Exotic animalsManor VetsBirminghamWest MidlandsUK
| | | | - Daniela Denk
- Department of IZVG PathologyInternational Zoo Veterinary GroupYeadonLeedsUK
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17
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Banco B, Giudice C, Ghisleni G, Romussi S, Behar D, Grieco V. Immunohistochemical Study of Mixed Germ Cell Sex Cord Stromal Tumours in 13 Canine Testes. J Comp Pathol 2015; 152:182-7. [DOI: 10.1016/j.jcpa.2014.12.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/02/2014] [Accepted: 12/17/2014] [Indexed: 11/26/2022]
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18
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Inoue S, Yonemaru K, Yanai T, Sakai H. Mixed germ cell-sex cord-stromal tumor with a concurrent interstitial cell tumor in a ferret. J Vet Med Sci 2014; 77:225-8. [PMID: 25311985 PMCID: PMC4363027 DOI: 10.1292/jvms.14-0435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 5-year-old male ferret presented with an enlarged canalicular testis in the left inguinal region. Microscopically, the enlarged testis consisted of a diffuse intimately admixed proliferation of c-kit-positive germ cell-like and Wilms tumor-1 protein-positive Sertoli cell-like components, but no Call-Exner body was detected. In addition, the compact proliferation of steroidogenic acute regulatory protein-intense positive interstitial cells was identified in a separate peripheral area of the mass. Based on histopathological and immunohistochemical findings, the tumor was diagnosed as a mixed germ cell-sex cord-stromal tumor with a concurrent interstitial cell tumor.
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Affiliation(s)
- Saki Inoue
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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19
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Hohšteter M, Artuković B, Severin K, Kurilj AG, Beck A, Šoštarić-Zuckermann IC, Grabarević Ž. Canine testicular tumors: two types of seminomas can be differentiated by immunohistochemistry. BMC Vet Res 2014; 10:169. [PMID: 25096628 PMCID: PMC4129470 DOI: 10.1186/s12917-014-0169-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 07/21/2014] [Indexed: 11/30/2022] Open
Abstract
Background Testicular tumors are the most common genital neoplasms in male dogs, with Leydig cell tumors (LCT), seminomas (SEM), and Sertoli cell tumors (SCT) the most common forms. Human SEM are classified as classical (CSEM) or spermatocytic (SSEM). Intratubular germ cell neoplasia of undifferentiated origin (IGCNU) is another form of human testicular tumor. The aim of this study was to verify that CSEM/SSEM classification is valid in dogs and confirm the existence of canine IGCNU. Results Testicular tumors were found in 46% of dogs at necropsy and accounted for 7% of tumors biopsied. The median age of dogs with tumors at necropsy was 10.16 years; median age at positive biopsy was 10.24 years. The most common tumors, in decreasing order, were LCT, mixed tumors, SEM and SCT at necropsy, and SEM, SCT, mixed tumors, LCT, peripheral nerve sheath tumor, and teratoma in the biopsy group. IGCNU was found in 3% of testicles at necropsy and in 3% of biopsy samples. Two dogs had testicular tumor metastasis. Expression of c-KIT was most common in SEM and seminomatous components of mixed tumors. PLAP was mostly expressed in IGCNU, SEM, teratoma, and some mixed tumors. Cytokeratin was mainly expressed in SCT. CD30 expression was low in both groups. Conclusions The high tumor incidence at necropsy can be attributed to older age. Tumor incidence in biopsy samples, dog age, and histological classification were consistent with previous studies. The higher incidence of SEM and SCT in the biopsy group probably resulted from the obvious clinical expression of these tumor types. The low incidence of metastasis confirmed the predominance of benign tumors. Low CD30 expression confirmed the low incidence of testicular embryonal carcinoma. Cytokeratin helps differentiate stromal tumors, especially SCT, from germ cell tumors. Histology and c-KIT and PLAP expression indicate that IGCNU exists in dogs. Expression of c-KIT and PLAP confirmed that CSEM and SSEM classification is valid in dogs.
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20
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Hara S, Morita R, Shiraki A, Segawa R, Ogawa T, Takimoto N, Suzuki K, Nomura K, Shibutani M. Expression of protein gene product 9.5 and Sal-like protein 4 in canine seminomas. J Comp Pathol 2014; 151:10-8. [PMID: 24680979 DOI: 10.1016/j.jcpa.2014.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 12/01/2013] [Accepted: 02/02/2014] [Indexed: 01/20/2023]
Abstract
The aim of the present study was to characterize canine classical seminoma (SE) and spermatocytic seminoma (SS) by immunohistochemical expression of gonocytic and spermatogonial cellular markers (c-Kit, placental alkaline phosphatase [PLAP], protein gene product 9.5 [PGP9.5] and Sal-like protein 4 [Sall4]) and histochemically by the periodic acid-Schiff (PAS) reaction. Twenty-five cases of SE and 23 cases of SS were investigated. Two cases of dysgerminoma were also examined. c-Kit was expressed on the cell membrane of 13 of 25 cases of SE (52%) and four of 23 cases of SS (16%). This marker was not expressed in dysgerminoma. PLAP immunoreactivity was observed in the cytoplasm of neoplastic cells of six of 25 cases of SE (24%). PLAP was not expressed in cases of SS and dysgerminoma. All samples of SE, SS and dysgerminoma showed cytoplasmic expression of PGP9.5 and nuclear immunoreactivity for Sall4. There was fine granular cytoplasmic PAS staining in neoplastic cells in five of 25 cases of SE (20%), while all samples of SS and dysgerminoma cases were PAS negative. These findings suggest that it is not possible to differentiate canine SE and SS using these markers. This may be because canine SS may be derived from spermatogonia that can differentiate to spermatocytes and also because cases of canine SE might consist of neoplastic cells that have lost their gonocytic nature. This study was the first to show positive immunoreactivity for Sall4 in canine seminomas and dysgerminomas and expression of PGP9.5 in canine dysgerminomas.
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Affiliation(s)
- S Hara
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - R Morita
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan; Pathogenetic Veterinary Science, United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - A Shiraki
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan; Pathogenetic Veterinary Science, United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - R Segawa
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - T Ogawa
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - N Takimoto
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - K Suzuki
- Laboratory of Veterinary Toxicology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - K Nomura
- Veterinary Diagnostic Laboratory, Marupi Lifetech Co., Ltd., Osaka, Japan
| | - M Shibutani
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan.
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21
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Chambers JK, Uchida K, Murata Y, Watanabe KI, Ise K, Miwa Y, Nakayama H. Cystic rete testis with testicular dysplasia in a rabbit. J Vet Med Sci 2014; 76:751-5. [PMID: 24430659 PMCID: PMC4073347 DOI: 10.1292/jvms.13-0608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
An 8-year-old intact rabbit was presented to a veterinary hospital with a
complaint of enlarged left scrotum. Histological examination revealed a single large cyst
adjacent to an efferent ductule-like tissue. The cyst wall was composed of monolayer
cuboidal cells surrounded by dysplastic testicular tissue, and the seminiferous tubules
were not developed at all. The epithelial cells of the cyst possessed the same properties
as the epithelial cells of the rete testis that were positive for CD 10 and cytokeratin
18, negative for p63 and lacked desmin-positive muscular layer. The dysplastic testicular
tissue was composed of two types of cells: small pleomorphic cells with a condensed
nucleus (sex cord-like cells) and large round cells with cytoplasmic lipid droplets
(Leydig cells). Both of these cells were positive for vimentin and melan A that are
consistent with the staining pattern of Sertoli cells and Leydig cells. This is the first
report to demonstrate cystic rete testis with testicular dysplasia in animals.
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Affiliation(s)
- James K Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan
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22
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Ramos-Vara JA, Webster JD, DuSold D, Miller MA. Immunohistochemical evaluation of the effects of paraffin section storage on biomarker stability. Vet Pathol 2013; 51:102-9. [PMID: 23435571 DOI: 10.1177/0300985813476067] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Environmental stresses can alter immunoreactivity of biomarkers in stored tissue sections. The effect of temperature and lighting on 49 cellular or microbial antigens was evaluated in 4 serial paraffin sections, cut 12 months, 10 months, 8 months, 5 months, 3 months, 1 month, 3 days, and 1 day before immunohistochemistry. Slides were stored at room temperature (RT) in the dark, at 4°C in the dark, at RT under fluorescent light, or at RT with windowpane exposure to sunlight. Immunohistochemistry was performed simultaneously in an automated immunostainer. Immunoreactivity was compared with that in the corresponding 1-day-old section and scored as 4 (<10% reduction), 3 (10%-25% reduction), 2 (26%-60% reduction), 1(>60% reduction), or 0 (no reactivity). Any loss of immunoreactivity was proportional to the tissue section age and was least in sections stored in the dark. Immunoreactivity was only completely lost in light-exposed sections and as early as 1 month for CD45. Other markers with complete loss of immunoreactivity were bovine viral diarrhea virus, CD18 (only with fluorescent light), CD31, CD68, canine parvovirus, chromogranins, and thyroid transcription factor-1. Markers with complete loss after light exposure also had reduced immunoreactivity when stored in the dark, as early as day 3. Eight markers (Bartonella spp, CD11d, high molecular weight cytokeratins, feline coronavirus, GATA-4, insulin, p63, progesterone receptor) had minimal decrease in immunoreactivity, regardless of treatment. In conclusion, light-induced antigen decay (tissue section aging) is antigen dependent and could explain unexpectedly weak or negative immunohistochemical reactions in stored paraffin sections.
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Affiliation(s)
- J A Ramos-Vara
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, 406 South University, West Lafayette, IN 47907, USA.
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23
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Brömel C, Nelson R, Feldman E, Munro C, Kass P, Vico A, Labelle P, Conley A. Serum Inhibin Concentration in Dogs with Adrenal Gland Disease and in Healthy Dogs. J Vet Intern Med 2013; 27:76-82. [DOI: 10.1111/jvim.12027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 10/22/2012] [Accepted: 10/29/2012] [Indexed: 12/27/2022] Open
Affiliation(s)
- C. Brömel
- Department of Population Health and Reproduction
| | | | | | - C.J. Munro
- Department of Population Health and Reproduction
| | - P.H. Kass
- Department of Population Health and Reproduction
| | - A.E. Vico
- Department of Population Health and Reproduction
| | - P. Labelle
- Department of Pathology, Microbiology & Immunology (Labelle); School of Veterinary Medicine; University of California; Davis CA
| | - A.J. Conley
- Department of Population Health and Reproduction
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24
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Marino G, Zanghì A. Activins and inhibins: expression and role in normal and pathological canine reproductive organs: a review. Anat Histol Embryol 2012; 42:1-8. [PMID: 22632402 DOI: 10.1111/j.1439-0264.2012.01161.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 04/09/2012] [Indexed: 11/30/2022]
Abstract
Activins and inhibins are regulatory proteins of the reproductive function. Inhibins antagonise the activin signalling at different levels and are responsible for the negative feedback in the regulation of the release of pituitary follicle stimulating hormone (FSH), which, in turn, is promoted by locally produced activins. In the canine ovary, both peptides are expressed by developing follicles and corpora lutea. Activins may play a stimulatory role in follicular development, promoting the aromatase function; inhibins modulate these processes and suppress the hyperplasic/neoplastic stimuli. Activins are required for ovulation and corpus luteum formation, while inhibins stimulate progesterone synthesis. The exclusive production of alpha-inhibin by granulosa cells allows the peptide to be used as marker to identify canine ovarian stromal tumours by immunohistochemistry. In the male, activins are powerful morphogenetic factors in the foetal testis. In the adult, they display a modulating action on spermatogenesis and Sertoli cell function. Inhibins, produced mainly by Leydig cells, promote testosterone secretion. Canine testicular tumours, such as Leydig, Sertoli and granulosa cell tumours (GCTs), may express inhibin subunits and produce high circulating levels of these glycoproteins. In the canine prostate, activins inhibit epithelium proliferation, antagonising androgen effects, but they are synthesised under androgenic stimulus.
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Affiliation(s)
- G Marino
- Department of Veterinary Public Health, Messina 98168, Italy.
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25
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Irizarry Rovira AR, Lynch S, David M, Ramos Vara JA. Gonadoblastoma in the ovaries of a lesser galago (Galago senegalensis braccatus). J Comp Pathol 2012; 147:204-8. [PMID: 22520808 DOI: 10.1016/j.jcpa.2012.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 01/04/2012] [Accepted: 01/09/2012] [Indexed: 01/06/2023]
Abstract
An enlarged right ovary was removed from a 14-year-old lesser galago (Galago senegalensis braccatus). Cytological preparations consisted of a heterogeneous population of neoplastic cells admixed with extracellular hyaline structures and cell-free nuclei. Microscopically, the ovary was replaced with gonadoblastoma and was composed of nests of germinal cells, including large oocyte-like cells, and sex cord-stromal cells arranged in palisading patterns around the germinal cells, the periphery of the nests and around extracellular hyaline material. The animal died 2 years after initial diagnosis. Necropsy examination revealed gonadoblastoma in the left ovary. The germinal cells of the tumour in the right and left ovaries were immunoreactive for calretinin, OCT3/4, PGP 9.5, Ki67 and/or faintly for cytokeratins. Sex cord-stromal cells were immunoreactive for calretinin, OCT3/4, GATA-4, E-cadherin and vimentin. Luteinized sex cord-stromal cells were immunoreactive for inhibin-alpha. The extracellular hyaline material was immunoreactive for laminin. This is the first case of gonadoblastoma in a non-human primate.
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Affiliation(s)
- A R Irizarry Rovira
- Department of Pathology, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA.
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26
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Durkes A, Garner M, Juan-Sallés C, Ramos-Vara J. Immunohistochemical characterization of nonhuman primate ovarian sex cord-stromal tumors. Vet Pathol 2012; 49:834-8. [PMID: 22273575 DOI: 10.1177/0300985811432345] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study evaluates the immunoreactivity of 12 sex cord-stromal tumors of nonhuman primates (11 granulosa cell tumors and 1 luteoma). The markers selected are used in the characterization of gonadal tumors in dogs and other species, including cytokeratins AE1/AE3, GATA-4, inhibin-α, neuron-specific enolase, protein gene product 9.5, and vimentin. A normal nonhuman primate ovary was used as a control and to optimize immunolabeling. Staining was graded as follows: 0 (nonstaining), 1+ (< 10% positive cells), 2+ (10%-50% positive cells), and 3+ (> 50% positive cells). Calretinin, GATA-4, neuron-specific enolase, and vimentin were the most consistently expressed markers (12 of 12). Cytokeratins AE1/AE3 were also consistently expressed (11 of 12). Inhibin-α and protein gene product 9.5 were expressed in 8 and 10 sex cord-stromal tumors, respectively. Results indicate that immunoreactivity of nonhuman primate sex cord-stromal tumors is similar to that observed in other species and that calretinin, GATA-4, and neuron-specific enolase are the most consistently expressed markers in nonhuman primate sex cord-stromal tumors.
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Affiliation(s)
- A Durkes
- Department of Comparative Pathobiology, Purdue University, 406 South University, West Lafayette, IN 47907, USA
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27
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Grieco V, Banco B, Ferrari A, Rota A, Faustini M, Veronesi MC. Inhibin-α Immunohistochemical Expression in Mature and Immature Canine Sertoli and Leydig Cells. Reprod Domest Anim 2011; 46:920-3. [DOI: 10.1111/j.1439-0531.2011.01784.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Saegusa Y, Hayashi H, Taniai E, Imaoka M, Ohishi T, Wang L, Mitsumori K, Shibutani M. Spermatocytic seminoma with neuroectodermal differentiation and sertoli cell tumor in a dog. Vet Pathol 2010; 48:1024-8. [PMID: 20930104 DOI: 10.1177/0300985810385150] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Two distinct nodules developed in a cryptorchid testis of an 8-year-old male West Highland White Terrier. One nodule was a Sertoli cell tumor. The other was a spermatocytic seminoma with focal primitive neuroectodermal differentiation: formation of Homer-Wright rosettes and perivascular pseudorosettes, with immunoreactivity for S-100 protein, neuron-specific enolase, synaptophysin, neurofilament-68 kDa, microtubule-associated protein 2, and vimentin. The dog was alive and healthy 2 years after castration.
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Affiliation(s)
- Y Saegusa
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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29
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Ramos-Vara JA, Miller MA, Gilbreath E, Patterson JS. Immunohistochemical Detection of CD34, E-cadherin, Claudin-1, Glucose Transporter 1, Laminin, and Protein Gene Product 9.5 in 28 Canine and 8 Feline Meningiomas. Vet Pathol 2010; 47:725-37. [DOI: 10.1177/0300985810364528] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The variation in histologic pattern of meningiomas can make their diagnosis challenging. The immunohistochemical profile of 28 canine and 8 feline meningiomas was examined. Tumor types included anaplastic (6 dogs), angiomatoid (1 cat), fibroblastic (3 dogs, 1 cat), meningothelial (1 dog), microcystic (2 dogs), myxoid (3 dogs), psammomatous (4 cats), and transitional (13 dogs, 2 cats). The authors compared the expression of novel markers (CD34, E-cadherin, claudin-1, glucose transporter 1 [GLUT-1], laminin, and protein gene product [PGP] 9.5) with published markers (cytokeratins, glial fibrillary acidic protein [GFAP], progesterone receptor, S100, and vimentin). Neoplastic cells were immunohistochemically positive for vimentin in 100% of the meningiomas; CD34, 94%; GLUT-1, 86%; E-cadherin, 81%; S100, 75%; laminin, 72%; claudin-1, 60%; PGP 9.5, 55%; progesterone receptor, 44%; pancytokeratins, 39%; cytokeratins 8/18, 17%, and GFAP in 9%. Ki67 index did not correlate well with mitotic index. Based on these results and those in the human literature, immunohistochemistry for vimentin, CD34, and E-cadherin is proposed to support a diagnosis of meningioma. Immunohistochemistry for claudin-1, albeit of only moderate to low sensitivity in canine and feline meningiomas, may help to distinguish meningioma from some mesenchymal neoplasms involving the brain and associated structures, such as schwannomas, which in humans express claudin-1 poorly or not at all. Further studies with CD34, E-cadherin, and claudin-1 in canine and feline tumors that may mimic meningiomas are needed to determine the adequacy of this approach.
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Affiliation(s)
- J. A. Ramos-Vara
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana
| | - M. A. Miller
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana
| | - E. Gilbreath
- Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan
| | - J. S. Patterson
- Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan
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30
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Ichimura R, Shibutani M, Mizukami S, Suzuki T, Shimada Y, Mitsumori K. A case report of an uncommon sex-cord stromal tumor consisted of luteal and sertoli cells in a spayed bitch. J Vet Med Sci 2009; 72:229-34. [PMID: 19940389 DOI: 10.1292/jvms.09-0235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We report a rare case of benign sex cord-stromal tumor consisted largely of luteoma with minor portion of Sertoli cell tumor located at the position of the left ovary excision in an 11-year-old ovariectomized bitch. Granulosa cell component was lacking, and both luteal and Sertoli cell portions were entirely positive for inhibin alpha and neuron-specific enolase, whereas luteoma portion alone was positive for Wilms' tumor-1 (WT1), immunohistochemically. The results suggest that this tumor is a possible complication of incomplete ovarian excision at the time of ovariectomy and consisted of uncommon hybrid of luteal and Sertoli cells to be diagnosed as an unclassified sex cord-stromal tumor if applied in human cases. WT1-expression pattern suggested the signature of the difference in the phenotype of these cell types.
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Affiliation(s)
- Ryohei Ichimura
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
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31
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Grieco V, Banco B, Giudice C, Mosca F, Finazzi M. Immunohistochemical expression of the KIT protein (CD117) in normal and neoplastic canine testes. J Comp Pathol 2009; 142:213-7. [PMID: 19683721 DOI: 10.1016/j.jcpa.2009.07.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2008] [Revised: 06/04/2009] [Accepted: 07/03/2009] [Indexed: 01/15/2023]
Abstract
The aim of the present study was to characterize the expression of the KIT protein (CD117) in normal and neoplastic canine testes. Archival samples of normal testis (n=5), interstitial cell tumours (ICTs; n=10), Sertoli cell tumours (SCTs; n=10) and seminomas (n=10) were selected. Seminomas were subclassified on the basis of expression of placental alkaline phosphatase (PLAP) as classical seminoma (SE; PLAP positive; n=5) or spermatocytic seminoma (SS; PLAP negative; n=5). In normal testes, KIT expression was observed in Leydig cells and in spermatogonia. All ICTs expressed KIT, but no SCT was positively labelled. Seven of 10 seminomas expressed KIT and these tumours were reclassified on this basis as SS (KIT negative) or SE (KIT positive). These findings are consistent with observations of SE in man where many of the neoplastic cells reach the stage of spermatogonia where PLAP expression is lost and that of KIT is maintained. It would therefore appear that immunolabelling for KIT expression is a more appropriate means of distinguishing between canine SE and SS.
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Affiliation(s)
- V Grieco
- Dipartimento di Patologia Animale, Igiene e Sanità Pubblica Veterinaria, Sezione di Anatomia Patologica Veterinaria e Patologia Aviare, Facoltà di Veterinaria, Università degli Studi di Milano, Milano, Italy.
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32
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Ramos-Vara JA, Miller MA. Immunohistochemical Evaluation of GATA-4 in Canine Testicular Tumors. Vet Pathol 2009; 46:893-6. [PMID: 19429994 DOI: 10.1354/vp.08-vp-0287-r-bc] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
GATA-4 is a transcription factor expressed in Sertoli cells and less commonly in Leydig (interstitial) cells but not germ cells in adult human beings, cattle, pigs, and mice. We examined GATA-4 in 76 formalin-fixed, paraffin-embedded canine testicular tumors, including 21 Sertoli cell tumors (SCT), 28 Leydig (interstitial) cell tumors (LCT), 24 seminomas (GCT), and 3 mixed germ cell sex cord-stromal tumors (MGSCT). Our hypothesis was that immunohistochemistry for GATA-4 could discriminate between germ cell and sex cord-stromal tumors of the canine testis. SCTs (21/21) had strong diffuse nuclear and weak and inconsistent cytoplasmic staining. LCTs (27/28) also had strong diffuse nuclear staining and much weaker and granular cytoplasmic staining. GCTs were negative for this marker. Sex cord-stromal cells of MGSCT were also positive. These results indicate that GATA-4 is mainly expressed in sex cord-stromal tumors and not in germ cell tumors of the canine testis.
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Affiliation(s)
- J. A. Ramos-Vara
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, West Lafayette, IN
| | - M. A. Miller
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, West Lafayette, IN
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Yu CH, Hwang DN, Yhee JY, Kim JH, Im KS, Nho WG, Lyoo YS, Sur JH. Comparative immunohistochemical characterization of canine seminomas and Sertoli cell tumors. J Vet Sci 2009; 10:1-7. [PMID: 19255517 PMCID: PMC2801099 DOI: 10.4142/jvs.2009.10.1.1] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Primary testicular tumors are the most common causes of cancer in male dogs. Overall, the majority of canine patients should be cured by testicular surgery. However, tumor markers are not well-known in veterinary medicine. We sought to determine using immunohistochemistry whether the combined human testicular tumor markers (placental alkaline phosphatase, OCT3/4, CD30, alpha-fetoprotein, inhibin-alpha, vimentin, c-KIT, and desmin) are expressed in canine seminomas and Sertoli cell tumors (SCTs). We examined 35 canine testicular tumors, 20 seminomas and 15 SCTs. c-KIT was expressed markedly in canine seminomas. Both inhibin-alpha and vimentin were expressed significantly in canine SCTs. The results of this study demonstrate differences and similarities between tumor marker expression of testicular tumors in dogs and humans. All the main markers in current routine use are discussed as well as potential useful markers for benign and malignant tumors, and tumor progression.
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Affiliation(s)
- Chi-Ho Yu
- Department of Veterinary Pathobiology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea
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Yearley JH, King N, Liu X, Curran EH, O'Neil SP. Biphasic malignant testicular sex cord-stromal tumor in a cotton-top tamarin (Saguinus oedipus) with review of the literature. Vet Pathol 2008; 45:922-7. [PMID: 18984797 DOI: 10.1354/vp.45-6-922] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A 20-year old male cotton-top tamarin (Saguinus oedipus) was presented with unilateral enlargement of an intrascrotal testicle. Fine-needle aspiration cytology demonstrated a neoplastic population with Call-Exner-like bodies and features of malignancy. The animal was castrated, and histologic examination revealed a biphasic sex cord-stromal tumor, with one region resembling Sertoli-cell tumor and one region resembling granulosa-cell tumor, with extensive microfollicular pattern and many Call-Exner bodies. Eight months after castration, the animal was euthanized on discovery of a caudal abdominal mass that displaced organs, was highly infiltrative, and extended into the paravertebral musculature with lysis of vertebral bone. Metastases to lymph node and lung were also present. Histologic examination of the abdominal tumor showed multifocal formation of Call-Exner bodies in an otherwise highly dedifferentiated population. Positive immunolabeling for alpha inhibin confirmed the sex cord-stromal origin of the abdominal and paravertebral tumor masses. This case has similarities to malignant testicular granulosa-cell tumor of humans.
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Affiliation(s)
- J H Yearley
- New England Primate Research Center, Harvard Medical School, Southborough, MA 01772, USA.
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