RESUMEN
The therapeutic effect of a combination of paclitaxel (PTX) and platinum (PLT) in ovarian clear cell adenocarcinoma (CC) patients with measurable disease has yet to be elucidated. In this study, we used retrospective review to evaluate the results of treatment with a combination of PTX and PLT in CC patients with measurable disease. A total of 28 patients with measurable residual CC (15 cases with primary disease, 13 cases with recurrent disease) treated with combination PTX-PLT chemotherapy was identified through medical records from ten institutions. Clinical response to chemotherapy was evaluated using Response Evaluation Criteria in Solid Tumors criteria. Of the 28 cases, 8 of 15 patients with primary disease (53.3%) and 3 of 13 patients with recurrent disease (23.1%) responded to PTX-PLT chemotherapy. The response rate for cases with late recurrent disease (>12 months) was 20% (1/5), whereas the rate was 25% (2/8) for cases with early recurrent (<12 months) or refractory disease. Our results indicate that the combination of PTX and PLT may have greater efficacy against CC than conventional PLT-based chemotherapy that does not include PTX.
Asunto(s)
Adenocarcinoma de Células Claras/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Adenocarcinoma de Células Claras/mortalidad , Adenocarcinoma de Células Claras/patología , Adulto , Anciano , Cisplatino/administración & dosificación , Cisplatino/uso terapéutico , Intervalos de Confianza , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Estudios de Seguimiento , Humanos , Inmunohistoquímica , Japón , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Paclitaxel/uso terapéutico , Probabilidad , Estudios Retrospectivos , Medición de Riesgo , Análisis de Supervivencia , Resultado del TratamientoRESUMEN
AIM: To assess efficacy and complications of trans-Tenon's retrobulbar infusion of triamcinolone acetonide for posterior uveitic inflammation. METHODS: Non-randomised, uncontrolled, retrospective study of 51 eyes of 37 patients who underwent triamcinolone infusion for vitritis, cystoid macular oedema (CMO), or posterior retinal vasculitis using a long blunt cannula via an incision made through conjunctiva and Tenon's capsule. RESULTS: Overall clinical efficacy was 86%; 96% for vitritis, 82% for CMO, and 33% for posterior retinal vasculitis. Mean visual acuity improved within 1 month after triamcinolone infusion (p <0.05). Cataract progression and intraocular pressure elevation were observed in 31% and 27% of eyes, respectively. CONCLUSION: Trans-Tenon's retrobulbar triamcinolone infusion may be a safe and effective treatment for posterior uveitic inflammation.
Asunto(s)
Antiinflamatorios/administración & dosificación , Glucocorticoides/administración & dosificación , Triamcinolona Acetonida/administración & dosificación , Uveítis Posterior/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Catarata/patología , Progresión de la Enfermedad , Femenino , Humanos , Infusiones Intralesiones , Presión Intraocular/efectos de los fármacos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Resultado del Tratamiento , Uveítis Posterior/fisiopatología , Agudeza Visual/efectos de los fármacosRESUMEN
We present the first report of the use of an isosorbide dinitrate tablet for the purpose of uterine relaxation for manual extraction of a retained placenta. The tablet administered sublingually proved to be a rapid and effective uterine muscle relaxant for manual removal of the placenta without overt adverse effects.
Asunto(s)
Dinitrato de Isosorbide/administración & dosificación , Relajación Muscular/efectos de los fármacos , Retención de la Placenta/terapia , Administración Sublingual , Adulto , Dinoprost/administración & dosificación , Femenino , Humanos , Embarazo , Contracción Uterina/efectos de los fármacosRESUMEN
BACKGROUND: A new long-term care insurance system was launched in Japan in April 2000. OBJECTIVES: We performed the first national survey on special units of psychiatric hospitals for dementia patients to examine whether their disabilities were well reflected in the eligibility assessment. METHODS: Of all 248 dementia special units of psychiatric hospitals in Japan, 180 units (72.6%) participated in the survey. Five patients were randomly selected in each unit, and we used data of 802 (89.1%) of 900 patients whose care levels were obtained by the primary computer assessment. These patients were assessed using the Mini-Mental State Examination (MMSE), dementia rating scale by Gottfries et al. (1982) (GBS), and Activities of Daily Living (ADL). The mean score (SD) of the MMSE was 9.3 (6.9). RESULTS: Multiple regression analysis revealed that the scores of motor function in GBS, ADL, MMSE, and the degree of bedridden explained 73% of the variation of care level. The higher care levels were inversely related to lower MMSE scores. In the group of people who were not bedridden, the MMSE score sharply decreased even though their physical functions were maintained. There were no significant differences in the MMSE scores among the care level 1 and 5 groups except between care level 1 and 3 after controlling for the motor function scores in GBS. CONCLUSIONS: Our results suggest that care level and cognitive impairment are generally correlated in the primary assessment, but some adjustment measure for cognitive impairment is needed in mildly or moderately physically disabled patients.
Asunto(s)
Trastornos del Conocimiento/rehabilitación , Demencia/rehabilitación , Personas con Discapacidad/clasificación , Determinación de la Elegibilidad , Hospitales Psiquiátricos , Seguro de Cuidados a Largo Plazo/normas , Anciano , Femenino , Evaluación Geriátrica , Encuestas de Atención de la Salud , Humanos , Japón , Masculino , Escala del Estado Mental , Admisión del Paciente , Planificación de Atención al Paciente , Análisis de RegresiónRESUMEN
We report a case of angiosarcoma of the vagina in a 61-year-old woman who had undergone radical hysterectomy and pelvic irradiation for uterine cervical adenocarcinoma 14 years previously. Combination chemotherapy (cyclophosphamide, vincristine, doxorubicin and dacarbazine) and interleukin-2 induced complete remission of the tumor. The patient remained free from disease for 15 months.
Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Hemangiosarcoma/tratamiento farmacológico , Interleucina-2/uso terapéutico , Neoplasias Vaginales/tratamiento farmacológico , Ciclofosfamida/administración & dosificación , Dacarbazina/administración & dosificación , Diagnóstico Diferencial , Doxorrubicina/administración & dosificación , Esquema de Medicación , Femenino , Hemangiosarcoma/diagnóstico , Hemangiosarcoma/cirugía , Humanos , Histerectomía , Persona de Mediana Edad , Neoplasias Vaginales/diagnóstico , Neoplasias Vaginales/cirugía , Vincristina/administración & dosificaciónRESUMEN
OBJECTIVE: To assess the value of procedures for pre-operative diagnosis of cervical involvement of uterine corpus carcinoma. MATERIALS AND METHODS: Four diagnostic procedures, including cervical cytology, endocervical curettage (ECC), magnetic resonance imaging (MRI), and hysteroscopy, were performed for diagnosis of cervical involvement in 60 patients with uterine corpus carcinoma. The preoperative diagnosis based on results obtained using by each procedure was retrospectively compared with the diagnosis based on histological examination of surgical specimens. Data were analyzed according to the standard definition of sensitivity, specificity, positive predictive value and negative predictive value. RESULTS: Cervical involvement was confirmed in 18 patients (30%). ECC showed high sensitivity (90.9%) and specificity (88.9%). Cervical cytology showed high specificity (88.6%). MRI showed very high specificity (99.2%) and high sensitivity (88.5%) in cases with cervical stromal invasion. CONCLUSION: Cervical cytology and MRI are useful for excluding cervical involvement. ECC is useful for positive diagnosis. MRI may be useful for cases with stromal invasion. The use of a combination of several procedures is essential for obtaining an accurate diagnosis of cervical involvement in cases of uterine corpus carcinoma.
Asunto(s)
Cuello del Útero/patología , Neoplasias Endometriales/patología , Adulto , Anciano , Legrado , Neoplasias Endometriales/diagnóstico , Femenino , Humanos , Histeroscopía , Imagen por Resonancia Magnética , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Sensibilidad y EspecificidadRESUMEN
A 70-year-old, menopausal Japanese woman with large uterine tumor underwent total hysterectomy. Microscopic examination revealed a myxoid leiomyosarcoma with 5 to 6 mitoses/10 high power field (HPF). Immunohistochemically, the tumor cells reacted with desmin, suggesting that they are derived from uterine smooth muscle cells. The patient was treated with the combination chemotherapy consisting of cisplatin, adriamycin and cyclophosphamide, and she has been free from disease for 70 months after the operation.
Asunto(s)
Leiomiosarcoma/patología , Neoplasias Uterinas/patología , Anciano , Femenino , HumanosRESUMEN
We report a rare familial case of dementia with Lewy bodies (DLB). The patient was a man who died at the age of 51. His parents were first cousins. Among three siblings, two were diagnosed as probable cases of DLB, and one was a possible case, according to the clinical diagnostic criteria of the consortium on DLB. Following the patient's autopsy, he was found to have had DLB without neurofibrillary tangles or senile plaques (pure form of diffuse Lewy body disease). His other siblings have been followed for more than ten years. Although these patients with familial DLB displayed clinical variability, all three siblings showed progressive dementia of early onset and progressive language disorder with paraphasia and difficulty in finding words. Psychotic features were also seen in the three siblings. The patient's sister showed compulsive behavior, and the other two siblings showed symptoms of parkinsonism. Neuropathologically, in addition to the usual neuropathology of DLB, the autopsy findings showed numerous small spheroids in the stratum pyramidale from the subiculum to CA1 of the hippocampus. Significant neuronal loss in CA2-3 of the hippocampus was detected. Axonal flow disturbance may be involved in the hippocampal formations of this incidence of familial DLB.
Asunto(s)
Demencia/genética , Enfermedad por Cuerpos de Lewy/genética , Corteza Cerebral/patología , Consanguinidad , Demencia/diagnóstico , Femenino , Hipocampo/patología , Humanos , Enfermedad por Cuerpos de Lewy/diagnóstico , Masculino , Microscopía Electrónica , Persona de Mediana Edad , Examen Neurológico , Neuronas/patología , LinajeRESUMEN
BACKGROUND: The Japanese Society of Gynecologist and Obstetrician (JSGO) revised criteria for early uterine cervical cancer. OBJECTIVE: In this study, we investigated the value of the revised JSGO criteria. METHOD: Retrospective review was performed for 70 patients with tumors limited to the uterine cervix who were classified stage I under old JSGO criteria. RESULT: Forty patients were re-classified into stage IA1 and 4 patients into stage IA2. Incidence of lymph-vascular infiltration (LVI) in stage IA1 and IA2 were 5% and 25%. There was one patient with stage IA1 disease who had nodal metastasis and no patients with stage IA2 disease. There were 14 patients with stage IB1 disease and 12 patients with stage IB2 disease. Mortality of patients with stage IB2 disease was 25% and significantly higher than that of patients with stage IA and IB1 disease (P<0.001 and <0.05) CONCLUSION: Although the revised JSGO criteria for early cervical cancer are acceptable for assessment of patients, the therapy of patients is still controversial. We recommend that patients with stage IA1 and negative LVI should have less radical hysterectomy and patients with stage IA1 with LVI or stage IA2, IB should have radical hysterectomy.
Asunto(s)
Estadificación de Neoplasias/métodos , Neoplasias Uterinas/patología , Adulto , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Femenino , Humanos , Histerectomía , Japón/epidemiología , Invasividad Neoplásica , Sociedades Médicas , Neoplasias Uterinas/mortalidad , Neoplasias Uterinas/cirugíaRESUMEN
In this study, we evaluated whether proliferative activity and metastatic potential are prognostic factors in adenocarcinoma of the cervix. Formalin-fixed, paraffin-embedded sections from 34 patients with cervical adenocarcinoma or adenosquamous carcinoma were immunostained with monoclonal antibody MIB1, expressed in proliferating cells, and anti-nm23 antibody, reacts with metastasis suppression gene products. MIB1 positivity ranged from 0.2 approximately 54.7% with a mean of 21.4%. The level did not differ significantly between various clinicopathological categories. Although patient survival of high or low MIB1 expressing tumor was not significantly different, the disease-free interval of high (> or =25%) expressing tumor was significantly lower than that of low (<25%) expressing tumor. Strong and medium expression for nm23 were detected in 7 (21%) and 3 (9%) of patients. Tumor with strong nm23 expression tended to have a higher relapse rate. Although the survival of strong and weakly nm23 expressing tumor was not significantly different, the disease-free survival of strong nm23 expressing tumor was lower than that of weakly nm23 expressing tumor. MIB1 and nm23 immunostaining might be some of prognostic indicators of recurrence in cervical adenocarcinoma. In cervical adenocarcinoma, the nm23 gene products may not function as metastatic suppression but reflect proliferative activity.
Asunto(s)
Adenocarcinoma/metabolismo , Proteínas de Unión al GTP Monoméricas , Proteínas Nucleares/metabolismo , Nucleósido-Difosfato Quinasa , Factores de Transcripción/metabolismo , Neoplasias del Cuello Uterino/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Anticuerpos Monoclonales , Antígenos Nucleares , Femenino , Humanos , Inmunohistoquímica/métodos , Persona de Mediana Edad , Nucleósido Difosfato Quinasas NM23 , Recurrencia Local de Neoplasia , Modelos de Riesgos Proporcionales , Coloración y Etiquetado , Análisis de SupervivenciaRESUMEN
BACKGROUND: Dysgerminoma with syncytiotrophblastic giant cells is a rare ovarian tumor. Only ten cases of this tumor have been reported, and all tumors developed in normal ovaries. This report presents a case of dysgerminoma with syncytiotrophoblastic giant cells arising in a patient with 46,XX pure gonadal dysgenesis. CASE: An 18-year-old phenotypic female of normal height without somatic anomalies with nonfunctional ovaries underwent a bilateral gonadectomy for a right ovarian tumor and left streak gonad. The tumor revealed a dysgerminoma containing scattered syncytiotrophoblastic giant cells. Her serum hCG was elevated, and hCG was demonstrated within syncytiotrophoblastic giant cells immunohistochemically. The clinical diagnosis was stage Ia dysgerminoma with syncytiotrophoblastic giant cells. Her karyotype was 46,XX and the sex-determining region Y gene was not detected in tumor DNA by polymerase chain reaction analysis. CONCLUSION: This rare gonadal tumor may arise from dysgenetic gonads in addition to gonadoblastoma and pure dysgerminoma. It is an example of tumorgenesis in pure gonadal dysgenesis with no identifiable Y chromosome component.
Asunto(s)
Disgerminoma/complicaciones , Células Gigantes/patología , Disgenesia Gonadal/complicaciones , Neoplasias Ováricas/complicaciones , Trofoblastos/patología , Adolescente , Femenino , Humanos , Cromosoma XRESUMEN
To explore the change in age distribution of patients with uterine cervical cancer and its precursors, we analyzed 2,168,923 women in a series of mass screening for uterine cervical cancer in Fukushima Prefecture. The first examination rate was not increased over a 20-year period. During the screening period, severe dysplasia was found in 693 women, carcinoma in situ in 672 women, microinvasive carcinoma in 517 women, and frank invasive carcinoma in 421 women. The numbers of patients with frank invasive carcinoma was decreased gradually in every age group, which might reflect the effectiveness of our mass screening project. Although the detection rates of severe dysplasia, carcinoma in situ and microinvasive carcinoma have not changed in patients groups over 40 years old, the detection rates were increased in patients under the age of 39. These results may reflect a recent tendency for cervical cancer to increase in young women. It is important, therefore, to increase the screening rate for young women to prevent the progression with advanced cervical cancer.
Asunto(s)
Neoplasias del Cuello Uterino/epidemiología , Adulto , Distribución por Edad , Anciano , Femenino , Humanos , Japón/epidemiología , Tamizaje Masivo , Persona de Mediana Edad , Displasia del Cuello del Útero/epidemiologíaRESUMEN
Griffonia simplicifolia agglutinin I-B4 (GSAI-B4) has broader specificity for B antigen variants and can recognize the antigens in a wide variety of human tissues. Thus, the concentration range of GSAI-B4 required for staining and the susceptibility of staining to alpha-galactosidase digestion is presumed to correlate well with the density of B antigens in tissue sections. By microphotometric quantification of staining intensity at different concentrations of GSAI-B4 with or without alpha-galactosidase digestion, concentration of B antigens in selected tissues was evaluated and compared. Based on the present results and the previous ones of direct measurement of galactose of B antigens in sublingual glands and red blood cells (Ito et al., 1993), the order of concentration of B antigens in tissues examined was estimated as follows; mucous cells of sublingual glands from German nonsecretors < red blood cells and vascular endothelial cells (= 2.7 x 10(-3) nmole/cm2), thyroid papillary carcinomas and Hassall's corpuscles from nonsecretors < mucous cells of sublingual gland from Japanese nonsecretors < pancreatic acinar cells from both secretor and nonsecretors, Hassall's corpuscles and kidney collecting tubules form secretors < mucous cells of sublingual gland from secretors (> 8.5-11.7 nmole/cm2) and mucous cells of Brunner's gland from nonsecretors < mucous cells of Brunner's gland from secretors. From the above estimation, it is apparent that the expression of B antigen in Brunner's gland is partly dependent on the secretor status of individuals and that Japanese nonsecretors secrete substantial amounts of B antigens from sublingual gland while German nonsecretors do not. The present results also revealed an unexpected staining behavior of GSAI-B4 in some tissues, i.e. in mucous cells of sublingual glands and collecting tubules of kidney from secretors, staining intensity was markedly depressed at higher concentration of the lectin and this depression was recovered by prior alpha-galactosidase digestion. In addition, the present method was successfully applied for the estimation of the content of B antigens neo-expressed in thyroid papillary carcinomas, showing that the content of B antigen had a similar level to that of red blood cells and vascular endothelial cells.
Asunto(s)
Antígenos/análisis , Glándulas Duodenales/citología , Glándulas Duodenales/metabolismo , Carcinoma Papilar/metabolismo , Carcinoma Papilar/patología , Endotelio Vascular/metabolismo , Endotelio Vascular/patología , Histocitoquímica , Humanos , Hidrólisis , Indicadores y Reactivos , Lectinas , Fotometría , Glándula Sublingual/metabolismo , Glándula Sublingual/patología , Neoplasias de la Tiroides/metabolismo , Neoplasias de la Tiroides/patología , Fijación del Tejido , alfa-GalactosidasaRESUMEN
To clarify the influence of age on clinical and histologic features, young women with ovarian epithelial borderline tumors and carcinomas were analyzed. A retrospective review of 93 patients with ovarian common epithelial borderline tumors and carcinomas was performed. Twenty-one of 93 patients (22.6%) were under age 40. Predominant symptoms in young patients were abdominal pain or abdominal distention, but 4 (19%) patients had no symptom. Eleven (11/21; 52.4%) patients were nulliparous and six patients received conservative surgery to preserve fertility. The rate of histologic type and stage did not significantly differ between the young and older groups. Although overall survival between young and older patients did not significantly differ, the survival of young patients with advanced disease (stage III and IV) was significantly worse than in older patients with advanced disease. (p < 0.05).
Asunto(s)
Carcinoma/diagnóstico , Carcinoma/patología , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/patología , Adolescente , Adulto , Distribución por Edad , Anciano , Carcinoma/terapia , Femenino , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Glandulares y Epiteliales/diagnóstico , Neoplasias Glandulares y Epiteliales/patología , Neoplasias Glandulares y Epiteliales/terapia , Neoplasias Ováricas/terapia , Paridad , Pronóstico , Estudios Retrospectivos , Tasa de SupervivenciaRESUMEN
A 55-year-old woman presented with vaginal bleeding. A tumor was found in the cervix; it was composed of 2 distinctive elements: a clear-cell adenocarcinoma and a choriocarcinoma. Histologic findings suggested that the choriocarcinomatous element was derived from a preexisting clear-cell adenocarcinoma through a metaplastic process.
Asunto(s)
Adenocarcinoma de Células Claras/patología , Coriocarcinoma/patología , Neoplasias del Cuello Uterino/patología , Adenocarcinoma de Células Claras/tratamiento farmacológico , Adenocarcinoma de Células Claras/cirugía , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Coriocarcinoma/tratamiento farmacológico , Coriocarcinoma/cirugía , Gonadotropina Coriónica Humana de Subunidad beta/sangre , Femenino , Humanos , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/secundario , Persona de Mediana Edad , Radiografía , Neoplasias del Cuello Uterino/tratamiento farmacológico , Neoplasias del Cuello Uterino/cirugíaRESUMEN
The purpose of this study was to determine whether proliferative activity is a prognostic factor in ovarian clear cell adenocarcinoma. The paraffin-embedded sections from eight cases of ovarian clear cell adenocarcinoma were immunostained with monoclonal antibody MIB1 using microwave oven heating for antigen retrieval. The difference in survival (Kaplan-Meier) between patients with high and low MIB1 expression was estimated with the generalized Wilcoxon test. MIB1 positivity ranged from 1.80 to 27.12% with a mean of 11.43%. A cutoff point of 10% dichotomized patients into two groups. The survival of high (> or = 10%) expressing tumors was worse than that of low (< 10%) expressing tumors (p < 0.05). MIB1 immunostaining may have useful prognostic value in ovarian clear cell adenocarcinoma.
Asunto(s)
Adenocarcinoma de Células Claras/patología , Anticuerpos Monoclonales , División Celular , Neoplasias Ováricas/patología , Adulto , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Mitosis , Pronóstico , Reproducibilidad de los ResultadosRESUMEN
The monoclonal antibody 5-D-4 recognizes heavily sulphated forms of keratan sulphate epitope. It reacted strongly with the cell surfaces of most thyroid papillary carcinomas from all the individuals examined, independently of the blood group of the patients. Cells of follicular variants of papillary carcinomas were also labelled by 5-D-4. In contrast, no labelling with this antibody was observed in other types of thyroid neoplasms, or in normal tissues. The reactivity of 5-D-4 with papillary carcinomas was markedly reduced or abolished by prior digestion with endo-beta-galactosidase, keratanase II, or N-glycosidase F. Although keratanase digestion had no effect on 5-D-4 labelling, it revealed the binding sites of Griffonia simplicifolia agglutinin II (GSA-II), which recognizes terminal N-acetylglucosamine in a limited number of carcinoma cells from some individuals. Blood group ABH antigens, which are simultaneously expressed together with keratan sulphate epitope in cancer cells, were eliminated by digestion with endo-beta-galactosidase and N-glycosidase F, but were resistant to keratanase and keratanase II treatment. These results indicate that keratan sulphate oligosaccharides are cancer-associated and are probably oncofoetal antigens, as are the blood group antigens in human thyroid glands. The results suggests that poly-N-acetyllactosamine, which is ubiquitously and consistently produced in papillary carcinomas, is modified in two different ways: sulphation on the 6-position of at least some units of either galactose or N-acetylglucosamine or both, and decoration of non-reducing termini with the blood group antigens. Along with the endo-beta-galactosidase-GSA-II labelling procedure, labelling with 5-D-4 may be a useful diagnostic means for distinguishing papillary carcinoma from other types of thyroid neoplasms.
Asunto(s)
Sistema del Grupo Sanguíneo ABO , Carcinoma Papilar/metabolismo , Epítopos/análisis , Glicósido Hidrolasas , Sulfato de Queratano/análisis , Neoplasias de la Tiroides/metabolismo , Anticuerpos Monoclonales , Biopsia , Humanos , Polisacáridos/metabolismo , beta-Galactosidasa/metabolismoRESUMEN
Several studies have shown the deletion of blood group A or B antigens and the accumulation of H antigens in human breast carcinomas. Other studies have independently demonstrated that the binding sites of lectins such as Helix pomatia agglutinin (HPA) and Griffonia simplicifolia agglutinin I-B4 (GSAI-B4) are highly expressed in these cells. In order to clarify the molecular mechanisms of malignant transformation and metastasis of carcinoma cells, it is important to understand the relationship between such phenotypically distinct events. For this purpose, we examined whether the binding sites of these lectins and Ulex europaeus agglutinin I (UEA-I) are expressed concomitantly in the same carcinoma cells and analyzed their backbone structures. The expression of the binding sites of these lectins was observed independently of the blood group (ABO) of the patients and was not affected by the histological type of the carcinomas. Observation of serial sections stained with these lectins revealed that the distribution of HPA binding sites was almost identical to that of GSAI-B4 in most cases. Furthermore, in some cases, UEA-I binding patterns were similar to those of HPA and GSAI-B4 but in other cases, mosaic staining patterns with these lectins were also observed, i.e., some cell clusters were stained with both HPA and GSAI-B4 but not with UEA-I and adjacent cell clusters were stained only with UEA-I. Digestion with endo-beta-galactosidase or N-glycosidase F markedly reduced the staining intensity of these lectins. Together with the reduction of staining by these lectins, reactivity with Griffonia simplicifolia agglutinin II appeared in carcinoma cells following endo-beta-galactosidase digestion. Among the lectins specific to poly-N-acetyllactosamine, Lycopersicon esculentum agglutinin (LEA) most vividly and consistently stained the cancer cells. Next to LEA, pokeweed mitogen agglutinin was also effective in staining these cells. Carcinoma cells reactive with these lectins corresponded well to those stained with both HPA and GSAI-B4, and in some cases, with UEA-I. These results demonstrate that the binding sites of UEA-I, HPA, and GSAI-B4 are expressed concomitantly in the same carcinoma cells and all carry linear and branched poly-N-acetyllactosamine on N-glycans, suggesting that the synthesis of this complex carbohydrate is one of the most important and basic processes leading to the malignant transformation of cells, invasion, and metastasis of carcinoma cells.
Asunto(s)
Adenocarcinoma Escirroso/patología , Adenocarcinoma/patología , Neoplasias de la Mama/patología , Carcinoma Papilar/patología , Lectinas/química , Lectinas de Plantas , Polisacáridos/análisis , Sistema del Grupo Sanguíneo ABO/análisis , Anticuerpos Monoclonales , Sitios de Unión , Mama/patología , Secuencia de Carbohidratos , Femenino , Glicósido Hidrolasas , Humanos , Inmunohistoquímica , Datos de Secuencia Molecular , Sensibilidad y EspecificidadRESUMEN
To calculate the paternity probability in the cases of incest where the alleged father was either the father or the brother of the plaintiff's mother, some algebraic expressions applicable to a simple codominant diallelic genetic marker system were derived by modifying the formulas of Essen-Möller and Komatsu (the both formulas gave the same result). The paternity probability in the incest case is generally lower than that in usual case, because in the former case an allele present in the mother is sometimes found in both the alleged father and the child (plaintiff), even if the alleged father is not true father. The paternity probability in the incest case, however, becomes higher than that in usual case when an allele is common to both the alleged father and the child but not to the mother. The mean value of paternity probability becomes lower, as the relationship becomes closer between the alleged father and the mother.