2006
DOI: 10.1136/vr.158.24.821
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Steroid hormone receptors in normal, dysplastic and neoplastic feline mammary tissues and their prognostic significance

Abstract: The expression of oestrogen-alpha and progesterone receptors was determined in 13 normal, 21 dysplastic and 53 neoplastic feline mammary tissues. Expression of the receptors was correlated with cell proliferation, as assessed by the MIB-1 immunolabelling index, and with the clinical course of the disease. The expression of oestrogen receptors was significantly higher in healthy tissues and in adenosis than in neoplastic lesions, and the levels of progesterone receptors increased in fibroadenomatous changes and… Show more

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Cited by 47 publications
(66 citation statements)
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“…17 In the field of veterinary pathology, the carcinogenesis of canine mammary tumors has been widely studied, 12 and several attempts have been made to establish a model of a molecular-based subgrouping of malignant tumors similar to that developed for human breast cancer. 9,35 To our knowledge, no studies on molecular subgrouping have been performed in feline mammary tumors, although the loss of hormone receptors in tumor progression is well known, 19,21,23 and several reports have evaluated the role of HER-2 overexpression in mammary carcinomas of cats. 22,26,31,41 A more profound study of feline carcinoma molecular subtypes would be valuable, since these carcinomas present a number of similarities with the disease in humans, such as the highly malignant behavior or the almost complete absence of myoepithelial proliferations (a common feature of mammary tumors in dogs, the so-called complex and mixed tumors).…”
Section: Discussionmentioning
confidence: 99%
“…17 In the field of veterinary pathology, the carcinogenesis of canine mammary tumors has been widely studied, 12 and several attempts have been made to establish a model of a molecular-based subgrouping of malignant tumors similar to that developed for human breast cancer. 9,35 To our knowledge, no studies on molecular subgrouping have been performed in feline mammary tumors, although the loss of hormone receptors in tumor progression is well known, 19,21,23 and several reports have evaluated the role of HER-2 overexpression in mammary carcinomas of cats. 22,26,31,41 A more profound study of feline carcinoma molecular subtypes would be valuable, since these carcinomas present a number of similarities with the disease in humans, such as the highly malignant behavior or the almost complete absence of myoepithelial proliferations (a common feature of mammary tumors in dogs, the so-called complex and mixed tumors).…”
Section: Discussionmentioning
confidence: 99%
“…It is commonly accepted that progesterone and its synthetic derivates play an essential role in the development of FMFAC (9,12,20,22,34,35). This condition usually occurs in cyclic and pregnant females, under the influence of endogenous progesterone (9,15,32).…”
Section: Praca Oryginalnamentioning
confidence: 99%
“…Chez la chienne, la fréquence de l'embolisation lymphatique varie aussi selon les auteurs : elle est de 25% dans une cohorte de 84 cas (De Las Mulas et al 2005) et de 38% parmi 29 cas rapportés par Millanta et al (2006), elle atteint 55% sur 102 cas (Gama et al 2008) et 78% dans une cohorte de 245 cas (Rasotto et al 2012). Dans une cohorte rétrospective des 350 carcinomes mammaires invasifs canins de notre Unité de recherches, la fréquence de l'embolisation lymphatique déterminée par HES est de 49% (171/350), c'est-à-dire une fréquence similaire à celle observée chez la chatte (communication personnelle).…”
Section: Fréquence De L'embolisation Lymphatiqueunclassified
“…Il est alors nécessaire de connaître les facteurs pronostiques afin de prévenir le devenir du patient et de mettre en place un plan thérapeutique adapté. Ceux utilisés dans le pronostic du cancer du sein sont également connus dans l'espèce féline : la taille tumorale (MacEwen et al 1984 ;Ito et al 1996 ;Viste et al 2002 ;Millanta et al 2005 a;Seixas et al 2011), la présence ou non de métastases ganglionnaires ou à distance (Weijer et al 1983 ;Ito et al 1996 ;Seixas et al 2011, Zapulli et al 2014, le type et le grade histologique du carcinome (Weijer et al 1983 ;Ito et al 1996 ;Castagnaro et al 1998 ;Millanta et al 2002 ;Seixas et al 2011 ;Segonzac, 2013 ;Zapulli et al 2014), le caractère complet de l'exérèse chirurgicale (Weijer et al 1983), le score d'expression du facteur de croissance épidermique de type 2 (HER2) (Millanta et al 2005b ;Rasotto et al 2011), l'expression des récepteurs des oestrogènes et de la progestérone (Millanta et al 2005b ;Millanta et al 2006) et l'invasion lymphovasculaire (Seixas et al 2011 ;Preziosi et al 2002 ;Tanabe et al 2002 ;Sarli et al 2003;Zapulli et al 2014).…”
Section: Introductionunclassified
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