Reversal of antiprogestin resistance and progesterone receptor isoform ratio in acquired resistant mammary carcinomas

To explore mechanisms related to hormone resistance, three resistant variants of the MPA mouse breast cancer tumor model with low levels of progesterone receptor (PR) isoform A (PR-A)/high PR-B expression were developed by prolonged selective pressure with antiprogestins. The resistant phenotype of...

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Autor principal: Wargon, V.
Otros Autores: Helguero, L.A, Bolado, J., Rojas, P., Novaro, V., Molinolo, A., Lanari, C.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2009
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Acceso en línea:Registro en Scopus
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024 7 |2 cas  |a estradiol, 50-28-2; lonaprisan, 211254-73-8; mifepristone, 84371-65-3; mitogen activated protein kinase 1, 137632-08-7; mitogen activated protein kinase 3, 137632-07-6; protein kinase B, 148640-14-6; tamoxifen, 10540-29-1; Hormone Antagonists; Mifepristone, 84371-65-3; Mitogen-Activated Protein Kinase 1, 2.7.1.37; Mitogen-Activated Protein Kinase 3, 2.7.1.37; Protein Isoforms; Proto-Oncogene Proteins c-akt, 2.7.1.37; Receptors, Progesterone; progesterone receptor A; progesterone receptor B 
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100 1 |a Wargon, V. 
245 1 0 |a Reversal of antiprogestin resistance and progesterone receptor isoform ratio in acquired resistant mammary carcinomas 
260 |c 2009 
270 1 0 |m Lanari, C.; Laboratory of Hormonal Carcinogenesis, Institute of Experimental Biology and Medicine (IBYME), National Research Council of Argentina (CONICET), Obligado 2490, 1428 Buenos Aires, Argentina; email: clanari@dna.uba.ar 
506 |2 openaire  |e Política editorial 
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504 |a Molinolo, A.A., Lanari, C., Charreau, E.H., Sanjuan, N., Pasqualini, C.D., Mouse mammary tumors induced by medroxyprogesterone acetate: Immunohistochemistry and hormonal receptors (1987) J Natl Cancer Inst, 79, pp. 1341-1350 
504 |a Vanzulli, S.I., Soldati, R., Meiss, R., Colombo, L., Molinolo, A.A., Lanari, C., Estrogen or antiprogestin treatment induces complete regression of pulmonary and axillary metastases in an experimental model of breast cancer progression (2005) Carcinogenesis, 26, pp. 1055-1063. , doi:10.1093/carcin/bgi060 
504 |a Simian, M., Molinolo, A., Lanari, C., Involvement of matrix metalloproteinase activity in hormone-induced mammary tumor regression (2006) Am J Pathol, 168, pp. 270-279. , doi:10.2353/ajpath.2006. 050012 
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520 3 |a To explore mechanisms related to hormone resistance, three resistant variants of the MPA mouse breast cancer tumor model with low levels of progesterone receptor (PR) isoform A (PR-A)/high PR-B expression were developed by prolonged selective pressure with antiprogestins. The resistant phenotype of one tumor line was reversed spontaneously after several consecutive passages in syngeneic BALB/c mice or by 17-b-estradiol or tamoxifen treatment, and this reversion was significantly associated with an increase in PR-A expression. The responsive parental tumors disclosed low activation of ERK and high activation of AKT; resistant tumors on the other hand, showed the opposite, and this was associated with a higher metastatic potential, that did not revert. This study shows for the first time in vivo a relationship between PR isoform expression and antiprogestin responsiveness, demonstrating that, whereas acquired resistance may be reversed, changes in kinase activation and metastatic potential are unidirectional associated with tumor progression. © Springer Science+Business Media, LLC. 2008.  |l eng 
536 |a Detalles de la financiación: Secretaria de Ciencia y Tecnica, Universidad de Buenos Aires, PICT 05-15038, PICT 03-14406 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, PIP 5351 
536 |a Detalles de la financiación: Financial support Sales Foundation, SECyT (PICT 03-14406 and PICT 05-15038) and CONICET (PIP 5351). 
593 |a Laboratory of Hormonal Carcinogenesis, Institute of Experimental Biology and Medicine (IBYME), National Research Council of Argentina (CONICET), Obligado 2490, 1428 Buenos Aires, Argentina 
593 |a Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Stockholm, Sweden 
593 |a Oral and Pharyngeal Cancer Branch, NIDCR, NIH, Bethesda, MD 20892-4340, United States 
690 1 0 |a ACQUIRED HORMONE RESISTANCE 
690 1 0 |a AKT 
690 1 0 |a ANTIPROGESTINS 
690 1 0 |a BREAST CANCER 
690 1 0 |a DE NOVO HORMONE RESISTANCE 
690 1 0 |a ERK 
690 1 0 |a ESTROGEN RECEPTORS 
690 1 0 |a HORMONE RESISTANCE 
690 1 0 |a METASTASIS 
690 1 0 |a PROGESTERONE RECEPTOR ISOFORMS 
690 1 0 |a TUMOR REGRESSION 
690 1 0 |a ESTRADIOL 
690 1 0 |a ESTROGEN RECEPTOR ALPHA 
690 1 0 |a LONAPRISAN 
690 1 0 |a MIFEPRISTONE 
690 1 0 |a MITOGEN ACTIVATED PROTEIN KINASE 1 
690 1 0 |a MITOGEN ACTIVATED PROTEIN KINASE 3 
690 1 0 |a PROGESTERONE RECEPTOR A 
690 1 0 |a PROGESTERONE RECEPTOR B 
690 1 0 |a PROTEIN KINASE B 
690 1 0 |a TAMOXIFEN 
690 1 0 |a HORMONE ANTAGONIST 
690 1 0 |a ISOPROTEIN 
690 1 0 |a MIFEPRISTONE 
690 1 0 |a MITOGEN ACTIVATED PROTEIN KINASE 1 
690 1 0 |a MITOGEN ACTIVATED PROTEIN KINASE 3 
690 1 0 |a PROGESTERONE RECEPTOR 
690 1 0 |a PROGESTERONE RECEPTOR A 
690 1 0 |a PROGESTERONE RECEPTOR B 
690 1 0 |a PROTEIN KINASE B 
690 1 0 |a ANIMAL EXPERIMENT 
690 1 0 |a ANIMAL MODEL 
690 1 0 |a ANIMAL TISSUE 
690 1 0 |a ARTICLE 
690 1 0 |a AXILLARY LYMPH NODE 
690 1 0 |a BREAST CANCER 
690 1 0 |a BREAST CARCINOMA 
690 1 0 |a CANCER INHIBITION 
690 1 0 |a CANCER RESISTANCE 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a FEMALE 
690 1 0 |a LYMPH NODE METASTASIS 
690 1 0 |a METASTASIS POTENTIAL 
690 1 0 |a MOUSE 
690 1 0 |a NONHUMAN 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a TUMOR GROWTH 
690 1 0 |a ANIMAL 
690 1 0 |a BAGG ALBINO MOUSE 
690 1 0 |a CELL PROLIFERATION 
690 1 0 |a DRUG RESISTANCE 
690 1 0 |a EXPERIMENTAL NEOPLASM 
690 1 0 |a FLUORESCENT ANTIBODY TECHNIQUE 
690 1 0 |a METABOLISM 
690 1 0 |a PATHOLOGY 
690 1 0 |a SURVIVAL RATE 
690 1 0 |a WESTERN BLOTTING 
690 1 0 |a ANIMALS 
690 1 0 |a BLOTTING, WESTERN 
690 1 0 |a CELL PROLIFERATION 
690 1 0 |a DRUG RESISTANCE, NEOPLASM 
690 1 0 |a FEMALE 
690 1 0 |a FLUORESCENT ANTIBODY TECHNIQUE 
690 1 0 |a HORMONE ANTAGONISTS 
690 1 0 |a LYMPHATIC METASTASIS 
690 1 0 |a MAMMARY NEOPLASMS, EXPERIMENTAL 
690 1 0 |a MICE 
690 1 0 |a MICE, INBRED BALB C 
690 1 0 |a MIFEPRISTONE 
690 1 0 |a MITOGEN-ACTIVATED PROTEIN KINASE 1 
690 1 0 |a MITOGEN-ACTIVATED PROTEIN KINASE 3 
690 1 0 |a PROTEIN ISOFORMS 
690 1 0 |a PROTO-ONCOGENE PROTEINS C-AKT 
690 1 0 |a RECEPTORS, PROGESTERONE 
690 1 0 |a SURVIVAL RATE 
653 0 0 |a ru 486; zk 230211, Bayer Schering, Germany 
700 1 |a Helguero, L.A. 
700 1 |a Bolado, J. 
700 1 |a Rojas, P. 
700 1 |a Novaro, V. 
700 1 |a Molinolo, A. 
700 1 |a Lanari, C. 
773 0 |d 2009  |g v. 116  |h pp. 449-460  |k n. 3  |p Breast Cancer Res. Treat.  |x 01676806  |t Breast Cancer Research and Treatment 
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