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de Lacerda LB, Rios WM, Masson AP, Brandão IT, Milani TM, Borges MC, Ramalho LNZ, Barbosa MCR, Miyoshi A, Silva CL. Oral administration of Hsp65-producing Lactococcus lactis attenuates allergic asthma in a murine model. J Appl Microbiol 2020; 130:2075-2086. [PMID: 33124086 DOI: 10.1111/jam.14913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/09/2020] [Accepted: 10/23/2020] [Indexed: 01/09/2023]
Abstract
AIMS Allergic asthma is a chronic inflammatory lung disease characterized by a Th2-type immune response pattern. The development of nonspecific immunotherapy is one of the primary goals for the control of this disease. METHODS AND RESULTS In this study, we evaluated the therapeutic effects of Lactococcus lactis-producing mycobacterial heat shock protein 65 (LLHsp65) in an ovalbumin (OVA)-induced allergic asthma model. OVA-challenged BALB/c mice were orally administrated with LLHsp65 for 10 consecutive days. The results demonstrate that LLhsp65 attenuates critical features of allergic inflammation, like airway hyperresponsiveness and mucus production. Likewise, the treatment decreases the pulmonary eosinophilia and the serum level of OVA-specific IgE. In addition to deviating immune responses towards Th1-cytokine profile, increase regulatory T cells, and cytokine levels, such as IL-6 and IL-10. CONCLUSIONS Our results reveal that the mucosal immunotherapy of LLHsp65 significantly reduces the overall burden of airway allergic inflammation, suggesting a promising therapeutic strategy for allergic asthma treatment. SIGNIFICANCE AND IMPACT OF THE STUDY This research reveals new perspectives on nonspecific immunotherapy based on the delivery of recombinant proteins by lactic acid bacteria to treat of allergic disorders.
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Affiliation(s)
- L B de Lacerda
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - W M Rios
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - A P Masson
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - I T Brandão
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - T M Milani
- Department of Internal Medicine, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M C Borges
- Department of Internal Medicine, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - L N Z Ramalho
- Department of Pathology Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M C R Barbosa
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - A Miyoshi
- Department of Ecology, Genetics and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - C L Silva
- Department of Biochemistry and Immunology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Santana RC, Machado AA, Martinelli ALC, Jordão AA, Ramalho LNZ, Vannucchi H. Assessment of indicators of vitamin A status in non-cirrhotic chronic hepatitis C patients. ACTA ACUST UNITED AC 2016; 49:e4785. [PMID: 26577844 PMCID: PMC4678655 DOI: 10.1590/1414-431x20154785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Accepted: 05/10/2015] [Indexed: 12/31/2022]
Abstract
Subjects with chronic liver disease are susceptible to hypovitaminosis A due to
several factors. Therefore, identifying patients with vitamin deficiency and a
requirement for vitamin supplementation is important. Most studies assessing vitamin
A in the context of hepatic disorders are conducted using cirrhotic patients. A
cross-sectional study was conducted in 43 non-cirrhotic patients with chronic
hepatitis C to evaluate markers of vitamin A status represented by serum retinol,
liver retinol, and serum retinol-binding protein levels. We also performed the
relative dose-response test, which provides an indirect estimate of hepatic vitamin A
reserves. These vitamin A indicators were assessed according to the stage of liver
fibrosis using the METAVIR score and the body mass index. The sample study was
predominantly composed of male subjects (63%) with mild liver fibrosis (F1). The
relative dose-response test was <20% in all subjects, indicating vitamin A
sufficiency. Overweight or obese patients had higher serum retinol levels than those
with a normal body mass index (2.6 and 1.9 µmol/L, respectively; P<0.01). Subjects
with moderate liver fibrosis (F2) showed lower levels of serum retinol (1.9
vs 2.5 µmol/L, P=0.01) and retinol-binding
protein levels compared with those with mild fibrosis (F1) (46.3 vs
67.7 µg/mL, P<0.01). These results suggested an effect of being overweight on
serum retinol levels. Furthermore, more advanced stages of liver fibrosis were
related to a decrease in serum vitamin A levels.
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Affiliation(s)
- R C Santana
- Divisão de Infectologia, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - A A Machado
- Divisão de Infectologia, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - A L C Martinelli
- Divisão de Gastroenterologia, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - A A Jordão
- Divisão de Nutrologia e Nutrição, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - L N Z Ramalho
- Departamento de Patologia, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - H Vannucchi
- Divisão de Nutrologia e Nutrição, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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3
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Ramalho LNZ, Ribeiro-Silva A, Cassali GD, Zucoloto S. The Expression of p63 and Cytokeratin 5 in Mixed Tumors of the Canine Mammary Gland Provides New Insights into the Histogenesis of These Neoplasms. Vet Pathol 2016; 43:424-9. [PMID: 16846983 DOI: 10.1354/vp.43-4-424] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cytokeratin 5 and p63 have been described as basal and myoepithelial cell markers in human breast. Mixed tumors of the canine mammary gland have been associated with a myoepithelial origin. Cytokeratin 5 expression has not been evaluated in these tumors. We investigated the relation between cytokeratin 5 and p63 double-immunohistochemical expression in 23 mixed tumors of the canine mammary gland (10 benign mixed tumors and 13 carcinomas arising from benign mixed tumors) and their origin. Cytokeratin 5 and p63 co-expression was observed in myoepithelial cells of benign mixed tumors, as well as in squamous differentiation of carcinoma arising from benign mixed tumors. Though a few interstitial spindle cells of the mesenchymal components expressed both p63 and cytokeratin 5, the basal epithelial cells were labeled only by cytokeratin 5. The co-expression of p63 and cytokeratin 5 in myoepithelial cells and squamous differentiation suggest that, like in human breast, cytokeratin 5 can also be considered a myoepithelial- and squamous-cell differentiating marker in canine tumors. The presence of some interstitial spindle cells stained for p63 and cytokeratin 5 might be associated with a myoepithelial origin of the mesenchymal component of mixed tumors of the canine mammary gland. Moreover, contrary to p63, basal epithelial cells were labeled by cytokeratin 5, indicating that cytokeratin 5 may not represent an exclusive myoepithelial cell marker but also a basal epithelial cell marker in canine mixed tumors. According to these data, basal epithelial cells may be related to the origin of the epithelial component of mixed tumors of the canine mammary gland.
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Affiliation(s)
- L N Z Ramalho
- Department of Pathology, Faculty of Medicine of Ribeirão Preto, Avenida Bandeirantes 3900, Campus Universitário Monte Alegre, São Paulo, Brazil.
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Terra VA, Souza-Neto FP, Frade MAC, Ramalho LNZ, Andrade TAM, Pasta AAC, Conchon AC, Guedes FA, Luiz RC, Cecchini R, Cecchini AL. Genistein prevents ultraviolet B radiation-induced nitrosative skin injury and promotes cell proliferation. J Photochem Photobiol B 2015; 144:20-7. [PMID: 25668145 DOI: 10.1016/j.jphotobiol.2015.01.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/21/2015] [Accepted: 01/22/2015] [Indexed: 01/21/2023]
Abstract
Nitric oxide (NO) levels increase considerably after 24h of exposure of skin to ultraviolet B (UVB) radiation, which leads to nitrosative skin injury. In addition, increased NO levels after exposure to UVB radiation are associated with inhibition of cell proliferation. Compared to the UV-control group, UV-genistein at 10 mg/kg (UV-GEN10) group showed tissue protection, decreased lipid peroxide and nitrotyrosine formation, and low CAT activity. Furthermore, NO levels and iNOS labeling remained high. In this group, the reduction in lipid peroxides and nitrotyrosine was accompanied by upregulation of cell proliferation factors (Ki67 and PCNA), which indicated that prevention of nitrosative skin injury promoted cell proliferation and DNA repair. Genistein also prevented nitrosative events, inhibited ONOO(-) formation, which leads to tissue protection and cell proliferation. The UV-GEN15 group did not result in a greater protective effect compared to that with UV-GEN10 group. In the UV-GEN15 group, histological examination of the epidermis showed morphological alterations without efficient protection against lipid peroxide formation, as well as inhibition of Ki67 and PCNA, and VEGF labeling, which suggested inhibition of cell proliferation. These results help to elucidate the mechanisms underlying the photoprotective effect of genistein and reveal the importance of UVB radiation-induced nitrosative damage.
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Affiliation(s)
- V A Terra
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - F P Souza-Neto
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil; Laboratorio de Patofisiologia e Radicais Livres, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - M A C Frade
- Departamento de Clínica Medica, Divisão de Dermatologia, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - L N Z Ramalho
- Departamento de Patologia e Medicina Legal, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - T A M Andrade
- Departamento de Clínica Medica, Divisão de Dermatologia, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - A A C Pasta
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - A C Conchon
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - F A Guedes
- Departamento de Patologia e Medicina Legal, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - R C Luiz
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - R Cecchini
- Laboratorio de Patofisiologia e Radicais Livres, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil
| | - A L Cecchini
- Laboratorio de Patologia Molecular, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil; Laboratorio de Patofisiologia e Radicais Livres, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, PR-445, km 380, 86051-990 Londrina, PR, Brazil.
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Pereira FA, Mattar R, Facincani I, Defino HLA, Ramalho LNZ, Jorgetti V, Volpon JB, de Paula FJA. Pamidronate for the treatment of osteoporosis secondary to chronic cholestatic liver disease in Wistar rats. Braz J Med Biol Res 2012; 45:1255-61. [PMID: 22983176 PMCID: PMC3854229 DOI: 10.1590/s0100-879x2012007500143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Accepted: 08/31/2012] [Indexed: 11/22/2022] Open
Abstract
Osteoporosis is a major complication of chronic cholestatic liver disease (CCLD). We evaluated the efficacy of using disodium pamidronate (1.0 mg/kg body weight) for the prevention (Pr) or treatment (Tr) of cholestasis-induced osteoporosis in male Wistar rats: sham-operated (Sham = 12); bile duct-ligated (Bi = 15); bile duct-ligated animals previously treated with pamidronate before and 1 month after surgery (Pr = 9); bile duct-ligated animals treated with pamidronate 1 month after surgery (Tr = 9). Rats were sacrificed 8 weeks after surgery. Immunohistochemical expression of IGF-I and GH receptor was determined in the proximal growth plate cartilage of the left tibia. Histomorphometric analysis was performed in the right tibia and the right femur was used for biomechanical analysis. Bone material volume over tissue volume (BV/TV) was significantly affected by CCLD (Sham = 18.1 ± 3.2 vs Bi = 10.6 ± 2.2%) and pamidronate successfully increased bone volume. However, pamidronate administered in a preventive regimen presented no additional benefit on bone volume compared to secondary treatment (BV/TV: Pr = 39.4 ± 12.0; Tr = 41.2 ± 12.7%). Moreover, the force on the momentum of fracture was significantly reduced in Pr rats (Sham = 116.6 ± 23.0; Bi = 94.6 ± 33.8; Pr = 82.9 ± 22.8; Tr = 92.5 ± 29.5 N; P < 0.05, Sham vs Pr). Thus, CCLD had a significant impact on bone histomorphometric parameters and pamidronate was highly effective in increasing bone mass in CCLD; however, preventive therapy with pamidronate has no advantage regarding bone fragility.
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Affiliation(s)
- F A Pereira
- Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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6
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Castro e Silva O, Sankarankutty AK, Martinelli ALC, Souza FF, Teixeira AC, Feres O, Mente ED, Oliveira GR, Akita R, Muglia V, Elias J, Ramalho LNZ, Zucoloto S. Therapeutic Effect of Hyperbaric Oxygen in Hepatic Artery Thrombosis and Functional Cholestasis After Orthotopic Liver Transplantation. Transplant Proc 2006; 38:1913-7. [PMID: 16908321 DOI: 10.1016/j.transproceed.2006.06.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Among the postoperative complications, hepatic artery thrombosis can occur in up to 10% of adult orthotopic liver transplants and intervention is indicated when this occurs within 30 days by retransplantation. Primary graft dysfunction, which can occur in up to 30% of the cases and is another potential complication, although reversible, has a relatively high mortality rate. Hyperbaric therapy, an efficient mode of tissue oxygenation, is being used in an increasing number of clinical situations. We report here two cases where hyperbaric oxygen therapy greatly benefited patients with complications after orthotopic liver transplantation: one with hepatic artery thrombosis and the other with primary graft dysfunction. Both patients showed rapid clinical recovery with gradual reduction of liver and canalicular enzymes soon after commencing hyperbaric oxygen therapy.
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Affiliation(s)
- O Castro e Silva
- Special Liver Transplantation Unit, Departments of Surgery and Anatomy, Hospital das Clínicas, Ribeirão Preto School of Medicine, University of São Paulo, Av. Bandeirantes 3900, CEP 14049-900, Ribeirão Preto, São Paulo, Brazil.
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Ramalho LNZ, Maggiori MS, Ribeiro-Silva A, Peres LC. P63 Expression in Hydropic Abortion and Gestational Trophoblastic Diseases. Placenta 2006; 27:740-3. [PMID: 16026831 DOI: 10.1016/j.placenta.2005.05.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2005] [Revised: 05/11/2005] [Accepted: 05/12/2005] [Indexed: 11/24/2022]
Abstract
Gestational trophoblastic diseases are a group of interrelated diseases of trophoblastic tissue that include partial hydatidiform mole, complete hydatidiform mole, invasive mole, choriocarcinoma, and placental site trophoblastic tumor. P63 is a p53 homologue that, in normal placentas, is expressed in the cytotrophoblast cells. The role of p63 in gestational trophoblastic diseases, however, merits further investigation. Immunohistochemistry with the p63 antibody (clone 4A4) was performed in formalin-fixed paraffin-embedded samples of hydropic abortion (n=10), partial hydatidiform mole (n=12), complete hydatidiform mole (n=12) and choriocarcinoma (n=5). P63 expression was quantitatively assessed as 0 (no stained cells), + (less than 10% positive cells), ++ (10-50% positive cells), and +++ (more than 50% positive cells). The intensity was scored as 0 (absence), + (weak), ++ (moderate), or +++ (strong). Statistical analysis was carried out by the Fisher test. In contrast to the other diagnoses, none of the choriocarcinomas analyzed exhibited p63-positive cells. There was no difference in distribution of p63 positive cells between hydropic abortion, partial hydatidiform mole, and complete hydatidiform mole. Concerning the intensity of immunostaining, there was difference only between partial hydatidiform mole and complete hydatidiform mole. According to our results, p63 might be useful to differentiate a choriocarcinoma from other gestational trophoblastic diseases. Besides, since the intensity of p63 expression was much stronger in partial hydatidiform mole and complete hydatidiform mole than in hydropic abortion, this feature may be helpful in distinguishing these two diagnoses in challenging cases.
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Affiliation(s)
- L N Z Ramalho
- Departamento de Patologia, Faculdade de Medicina de Ribeirão Preto, Avenida Bandeirantes 3900, Campus Universitário Monte Alegre, 14049-900, Ribeirão Preto, São Paulo, Brazil
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8
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Ribeiro-Silva A, Ramalho LNZ, Garcia SB, Brandão DF, Chahud F, Zucoloto S. p63 correlates with both BRCA1 and cytokeratin 5 in invasive breast carcinomas: further evidence for the pathogenesis of the basal phenotype of breast cancer. Histopathology 2005; 47:458-66. [PMID: 16241993 DOI: 10.1111/j.1365-2559.2005.02249.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To study the expression of p63, cytokeratin (CK) 5 and CK8/18 in invasive ductal carcinomas and their relationship with BRCA1 and other pathological and immunohistochemical features of clinical significance. METHODS AND RESULTS Immunohistochemistry with the antibodies p63, CK5, CK8/18, BRCA1, oestrogen receptor, progesterone receptor, p53, c-erbB-2 and Ki67 was performed in 102 formalin-fixed paraffin-embedded samples of invasive ductal carcinomas. The CK5+ cases were submitted to a double-immunolabelling study with p63. There was a strong relationship between CK5 and p63 expression and both markers were associated with hormonal receptor-negative high-grade carcinomas with high proliferative rate. Furthermore, there was coexpression of CK5 and p63 in neoplastic cells, indicating that p63, like CK5, is a marker of the basal phenotype of breast cancer. There was a strong relationship between reduced expression of BRCA1 with both p63 and CK5 expression as well as an inverse correlation between p63 and CK8/18 expression, suggesting that loss of p63 expression is required for the transition between a basal to a luminal phenotype of breast carcinoma. CONCLUSIONS Since p63 is thought to be a marker of stem cells and may act as an oncogene, our data support the idea that BRCA1 acts as stem cell regulator.
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Affiliation(s)
- A Ribeiro-Silva
- Department of Pathology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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9
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Ribeiro-Silva A, Ramalho LNZ, Garcia SB, Zucoloto S. Does the correlation between EBNA-1 and p63 expression in breast carcinomas provide a clue to tumorigenesis in Epstein-Barr virus-related breast malignancies? Braz J Med Biol Res 2004; 37:89-95. [PMID: 14689049 DOI: 10.1590/s0100-879x2004000100013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Several investigators have identified Epstein-Barr virus (EBV) particles in breast carcinomas, a fact that supports a role for EBV in mammary tumorigenesis. The possible mechanism involved in this process is not clear. The present study was carried out in an attempt to determine whether there is a relationship between latent infection with EBV and p53 and p63 expression in breast carcinomas. Immunohistochemistry developed with 3.3-diaminobenzidine tetrahydrochloride was performed in 85 formalin-fixed paraffin-embedded breast carcinomas using anti-EBV EBNA-1, anti-p63, anti-p53, anti-estrogen receptor (ER) and anti-progesterone receptor (PR) antibodies. The cases were selected to represent each of the various histologic types: intraductal carcinoma (N=12), grade I invasive ductal carcinoma (N=15), grade II invasive ductal carcinoma (N=15), grade III invasive ductal carcinoma (N=15), tubular carcinoma (N=8), lobular carcinoma (N=10), and medullary carcinoma (N=10). The ductal breast carcinomas were graded I, II and III based on the Scarff-Bloom and Richardson grading system modified by Elston and Ellis. One slide containing at least 1000 neoplastic cells was examined in each case. ER, PR, p63, p53 and EBNA-1 were positive in 60, 40, 11.8, 21.2 and 37.6% of carcinomas, respectively. There was a correlation between EBNA-1 and p63 expression (P<0.001), but not between EBNA-1 and p53 (P=0.10). These data suggest a possible role for p63 in the mammary tumorigenesis associated with Epstein-Barr virus infection.
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MESH Headings
- Adult
- Aged
- Biomarkers, Tumor
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/virology
- Carcinoma, Ductal, Breast/genetics
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/virology
- DNA-Binding Proteins
- Epstein-Barr Virus Nuclear Antigens/genetics
- Female
- Gene Expression Regulation, Neoplastic
- Genes, Tumor Suppressor
- Herpesvirus 4, Human/isolation & purification
- Humans
- Immunohistochemistry
- Middle Aged
- Phosphoproteins/genetics
- Receptors, Estrogen/analysis
- Receptors, Progesterone/analysis
- Trans-Activators/genetics
- Transcription Factors
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Proteins
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Affiliation(s)
- A Ribeiro-Silva
- Departamento de Patologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.
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10
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Castro-e-Silva O, Zucoloto S, Marcassa LG, Marcassa J, Kurachi C, Melo CAS, Ramalho FS, Ramalho LNZ, Bagnato VS. Spectral response for laser enhancement in hepatic regeneration for hepatectomized rats. Lasers Surg Med 2003; 32:50-3. [PMID: 12516071 DOI: 10.1002/lsm.10141] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVES The low intensity laser therapy (LILT) has been widely used in all medical fields due to its therapeutic effects in reparative process, pain relief, and biostimulation. Even though there is a therapeutic window of wavelengths for clinical application, little has been done concerning the frequency spectrum response to biological effects. In this work, we investigate the dependence of different wavelengths irradiation in the enhancement of the tissue regeneration after partial hepatectomy in Wistar rats. STUDY DESIGN/MATERIALS AND METHODS The proliferating cell nuclear antigen (PCNA) labeling index and the respiratory control (oxygen consumption in extracted mitochondria) were the tests used to evaluate the liver regeneration after laser irradiation with different wavelengths. RESULTS AND CONCLUSIONS The results show a correlated spectral response that can be explained based on the combined effect of light penetration on biological tissues and the biomolecular excitation efficiency for each wavelength used.
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Affiliation(s)
- O Castro-e-Silva
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Av. dos Bandeirantes 3900, 14048-900 Ribeirão Preto, São Paulo, Brazil
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Araujo Lima AALD, Ramalho LNZ, Zucoloto S, Bagnato VS, Silva Júnior ODC. ESTUDO DA FOSFATASE ALCALINA EM RATOS CIRRÓTICOS HEPATECTOMIZADOS APÓS APLICAÇÃO DE LASER. Acta Cir Bras 2001. [DOI: 10.1590/s0102-86502001000500006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Araujo Lima AALD, Sankarankutty AK, Ramalho LNZ, Zucoloto S, Silva Júnior ODC. MÉTODO DE INDUÇÃO DE CIRROSE BILIAR SECUNDÁRIA COM USO DE PRÓTESE DE SILICONE. Acta Cir Bras 2001. [DOI: 10.1590/s0102-86502001000500008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Araujo Lima AALD, Ramalho LNZ, Zucoloto S, Bagnato VS, Silva Júnior ODC. ESTUDO DAS AMINOTRANSFERASES EM RATOS CIRRÓTICOS HEPATECTOMIZADOS APÓS APLICAÇÃO DE LASER. Acta Cir Bras 2001. [DOI: 10.1590/s0102-86502001000500014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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14
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Araujo Lima AALD, Ramalho LNZ, Zucoloto S, Bagnato VS, Silva Júnior ODC. ESTUDO DO POTENCIAL DE MEMBRANA MITOCONDRIAL EM RATOS CIRRÓTICOS HEPATECTOMIZADOS APÓS APLICAÇÃO DE LASER. Acta Cir Bras 2001. [DOI: 10.1590/s0102-86502001000500007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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15
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Ramalho FS, Ramalho LNZ, Zucoloto S, Castro-e-Silva Jr O, Corrêa FMA. Efeito de agentes anti-hipertensivos sobre as células estreladas durante a regeneração hepática em ratos. Acta Cir Bras 2000. [DOI: 10.1590/s0102-86502000000600028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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16
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Ramalho FS, Ramalho LNZ, Castro-e-Silva Jr O, Zucoloto S, Corrêa FMA. Efeito dos inibidores da enzima conversora da angiotensina sobre a regeneração hepática (estudo experimental). Acta Cir Bras 2000. [DOI: 10.1590/s0102-86502000000600030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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