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1.
Zhonghua Yi Xue Za Zhi ; 100(17): 1320-1325, 2020 May 05.
Artículo en Zh | MEDLINE | ID: mdl-32375440

RESUMEN

Objective: To explore the effect of phenolamine on the outcome and prognosis of patients with myocardial injury due to sepsis. Methods: From January 2015 to December 2017, 62 septic patients with myocardial injury were randomly divided into study group (n=32) and control group (n=30). Two groups were given conventional treatment, while the study group was treated with phentolamine. The NT-pro brain natriuretic pepitide (NT-proBNP), cardiac troponin I (cTnI), lactate dehydrogenase (LDH), creatine kinase isoenzymes (CK-MB) and tumor necrosis factor (TNF)-α, high-sensitivity C-reactive protein (hs-CRP), interleukin (IL)-1ß, IL-6 were detected at 0,12, 24, 48, 72 h and 7 d after hospitalization. And left ventricular ejection fraction (LVEF), e', E and A in each time period were observed. The 28 d survival rate and length of ICU stay were observed in both groups. The data were compared with single sample t test between the two groups. Results: After 12, 24, 48, 72 h and 7 d, NT-proBNP, cTnI, LDH, CK-MB, TNF-α, hs-CRP, IL-1ß, IL-6 in the study group were all significantly lower than those in the control group (all P<0.05). The cardiac function indexes of LVEF, E/A and E/e' in the study group were all significantly improved when compared with those in the control group (all P<0.05). The length of ICU stay and 28-day mortality in the study group were significantly lower than those in the control group ((9.8±3.6) d vs (13.0±4.1) d, t=3.152, P=0.004; 21.9% vs 36.7%, χ(2)=5.078, P=0.021). Conclusion: Combined application of phentolamine can significantly improve the outcome of sepsis patients with myocardial injury and improve the survival rate.


Asunto(s)
Fentolamina/uso terapéutico , Sepsis , Humanos , Péptido Natriurético Encefálico , Pronóstico , Sepsis/tratamiento farmacológico , Volumen Sistólico , Función Ventricular Izquierda
2.
Zhonghua Yi Xue Za Zhi ; 98(39): 3162-3165, 2018 Oct 23.
Artículo en Zh | MEDLINE | ID: mdl-30392275

RESUMEN

Objective: To evaluate the value of apparent diffusion coefficient (ADC) histogram in neonatal brain alteration with congenital heart disease (CHD). Methods: MRIs of 60 neonates with CHD confirmed by echocardiography were retrospectively analyzed in Children's Hospital of Nanjing Medical University from January 2012 to December 2016.Twenty-two MRIs of neonates with mild pneumonia or scalp hematoma who were suspicious of brain disease but normal MRI findings were enrolled as normal control.MRIcron and ImgJ softwares were used to acquire ADC histogram.The correlation between the gestational age and ADC histogram values were calculated respectively.Then t-test was used to analyze the differences of the histogram values and the diagnostic efficacy of different parameters was analyzed using the receiver operating characteristic curve. Results: The ADC values were significantly correlated with the gestational age (P<0.05). The 70th-90th ADC, skewness, kurtosis and variance were statistically significant (P<0.05). The area under the curve of the 90th ADC value was the largest at 0.698. Conclusions: The ADC histogram can quantify and objectively provide more diffusion information of brain tissue. It is a rapid and feasible quantitative method to identify brain changes in neonates with CHD.


Asunto(s)
Imagen de Difusión por Resonancia Magnética , Interpretación de Imagen Asistida por Computador , Encéfalo , Niño , Cardiopatías , Humanos , Recién Nacido , Estudios Retrospectivos
3.
Zhonghua Yi Xue Za Zhi ; 97(5): 338-342, 2017 Feb 07.
Artículo en Zh | MEDLINE | ID: mdl-28219189

RESUMEN

Objective: To explore the effects of phentolamine on hemodynamic of patients with severe sepsis . Methods: From January 2015 to August 2016, using random number table, 59 patients with severe sepsis were divided into research group and the control group by conventional treatment in Department of Emergency, the Second People's Hospital of Nanning City. The patients of the research group were given phentolamine injection. The CI, ITBVI, EVLWI, SVRI of the patients were monitored by PICCO on 6, 12, 24, 48, 72 h before and after treatment. Measuring clearance of blood lactic acid, lactic acid, comparing two groups of blood lactic acid, lactic acid clearance change tendency, 28 d survival rate and time of the two groups in the ICU of patients was observed. Results: CI, SVRI, ITBVI of the research group was increased obviously, and EVLWI decreased obviously(P<0.05 or P<0.01)12, 24, 48, 72 h after treatment. The levels of blood lactic acid, lactic acid clearancef the research group improved better than that of the control group(P<0.05 or P<0.01) after treatment of 12, 24, 48, 72 h time points, especially lactate clearance increased significantly than the control group[(27.2±2.2) mmol/L vs(13.9±3.0) mmol/L, t=8.322, P=0.034]on 6 h. Time in ICU and 28 days rate of the research group was less than the control group[(9.8±3.6)d vs(13.0±4.1)d, P=0.004 ; (22.6% vs 35.7%, P=0.021)]. Conclusion: Phentolamine can significantly improve the early condition of hemodynamic and the survival rates of patients with severe sepsis.


Asunto(s)
Sepsis , Hemodinámica , Humanos , Monitoreo Fisiológico , Fentolamina
4.
Genet Mol Res ; 14(4): 15730-8, 2015 Dec 02.
Artículo en Inglés | MEDLINE | ID: mdl-26634540

RESUMEN

The extracellular matrix metalloproteinase inducer (EMMPRIN, CD147) is a member of the immunoglobulin family and shows increased expression in tumor cells. We examined the effect of RNAi-mediated EMMPRIN gene silencing induced by lentiviral on the growth and cycle distribution of MCF-7 breast cancer cells. Lentiviral expressing EMMPRIN-short hairpin RNA were packaged to infect MCF-7 cells. The inhibition efficiency of EMMPRIN was validated by real-time fluorescent quantitation polymerase chain reaction and western blotting. The effect of EMMPRIN on cell proliferation ability was detected using the MTT assay and clone formation experiments. Changes in cell cycle were detected by flow cytometry. EMMPRIN-short hairpin RNA-packaged lentiviral significantly down-regulated EMMPRIN mRNA and protein expression, significantly inhibited cell proliferation and in vitro tumorigenicity, and induced cell cycle abnormalities. Cells in the G0/G1 and G2/M phases were increased, while cells in the S phase were decreased after infection of MCF-7 cells for 3 days. The EMMPRIN gene facilitates breast cancer cell malignant proliferation by regulating cell cycle distribution and may be a molecular target for breast cancer gene therapy.


Asunto(s)
Basigina/genética , Neoplasias de la Mama/genética , Ciclo Celular/genética , Silenciador del Gen , Proliferación Celular , Femenino , Expresión Génica , Técnicas de Silenciamiento del Gen , Humanos , Células MCF-7 , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , ARN Mensajero/genética , ARN Mensajero/metabolismo , ARN Interferente Pequeño/genética , Proteínas de Unión al ARN/genética , Proteínas de Unión al ARN/metabolismo
5.
J Postgrad Med ; 60(4): 366-71, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25370543

RESUMEN

BACKGROUND: Recent review of older (≥45-years-old) patients admitted to our trauma center showed that more than one-third were using neuro-psychiatric medications (NPMs) prior to their injury-related admission. Previously published data suggests that use of NPMs may increase patients' risk and severity of injury. We sought to examine the impact of pre-injury NPM use on older trauma patients' morbidity and mortality. MATERIALS AND METHODS: Retrospective record review included medication regimen characteristics and NPM use (antidepressants-AD, antipsychotics-AP, anxiolytics-AA). Hospital morbidity, mortality, and 90-day survival were examined. Comparisons included regimens involving NPMs, further focusing on their interactions with various cardiac medications (beta blocker - BB; angiotensin-converting enzyme inhibitor/angiotensin receptor blocker - ACE/ARB; calcium channel blocker - CCB). RESULTS: 712 patient records were reviewed (399 males, mean age 63.5 years, median ISS 8). 245 patients were taking at least 1 NPM: AD (158), AP (35), or AA (108) before injury. There was no effect of NPM monotherapy on hospital mortality. Patients taking ≥3 NPMs had significantly lower 90-day survival compared to patients taking ≤2 NPMs (81% for 3 or more NPMs, 95% for no NPMs, and 89% 1-2 NPMs, P < 0.01). Several AD-cardiac medication (CM) combinations were associated with increased mortality compared to monotherapy with either agent (BB-AD 14.7% mortality versus 7.0% for AD monotherapy or 4.8% BB monotherapy, P < 0.05). Combinations of ACE/ARB-AA were associated with increased mortality compared to ACE/ARB monotherapy (11.5% vs 4.9, P = 0.04). Finally, ACE/ARB-AD co-administration had higher mortality than ACE/ARB monotherapy (13.5% vs 4.9%, P = 0.01). CONCLUSIONS: Large proportion of older trauma patients was using pre-injury NPMs. Several regimens involving NPMs and CMs were associated with increased in-hospital mortality. Additionally, use of ≥3 NPMs was associated with lower 90-day survival.


Asunto(s)
Antagonistas Adrenérgicos beta/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Mortalidad Hospitalaria , Hipertensión/tratamiento farmacológico , Trastornos Mentales/tratamiento farmacológico , Polifarmacia , Heridas y Lesiones/complicaciones , Antagonistas Adrenérgicos beta/efectos adversos , Anciano , Anciano de 80 o más Años , Inhibidores de la Enzima Convertidora de Angiotensina/efectos adversos , Quimioterapia Combinada , Femenino , Humanos , Hipertensión/mortalidad , Puntaje de Gravedad del Traumatismo , Masculino , Trastornos Mentales/mortalidad , Persona de Mediana Edad , Estudios Retrospectivos , Heridas y Lesiones/epidemiología
6.
Genet Mol Res ; 13(2): 3805-11, 2014 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-24938467

RESUMEN

The endothelial NO synthase (eNOS) enzyme is expressed during the early stages of cardiogenesis and plays an important role in normal heart development. Genetic variations of eNOS G894T have been shown to influence individual susceptibility to some phenotypes of congenital heart disease (CHD) in different populations. We conducted a case-control study comprised of 945 CHD patients and 972 non-CHD individuals in a Chinese population. Two functional single nucleotide polymorphisms (SNPs) (T-786C: rs2070744 and G894T: rs1799983) and one tagging SNP (rs7830) were evaluated in our study, and we assessed their association with the risk of CHD. Compared with the rs7830 CC/AC genotypes, the eNOS rs7830 AA genotype showed a significantly increased risk of CHD (adjusted odds radio (OR) = 1.45, 95% confidence interval (CI = 1.13-1.85). A stratified analysis was performed and showed that the association between the rs7830 AA genotype and CHD risk was stronger in patients with perimembranous ventricular septal defects (adjusted OR = 1.62, 95%CI = 1.20-2.20). Our results suggest that the eNOS rs7830 polymorphism may contribute to the susceptibility of sporadic CHD in a Chinese population.


Asunto(s)
Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Cardiopatías Congénitas/genética , Óxido Nítrico Sintasa de Tipo III/genética , Pueblo Asiatico , Estudios de Casos y Controles , Preescolar , Femenino , Haplotipos , Cardiopatías Congénitas/patología , Humanos , Lactante , Masculino , Factores de Riesgo
7.
Genet Mol Res ; 12(3): 2937-44, 2013 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-24065649

RESUMEN

Recent evidence has shown that the microRNA polymorphism may play an important role in the susceptibility to congenital heart disease (CHD). A potentially functional SNP rs4938723 (T>C) in the promoter region of pri-miR-34b/c might affect transcription factor GATA binding and therefore pri-miR-34b/c expression. We genotyped the pri-miR-34b/c polymorphism in a case-control study of 590 patients and 672 controls in a Han Chinese population and assessed the effects of the pri-miR-34b/c polymorphism on CHD susceptibility by TaqMan SNP genotyping assay. There was no association between the pri-miR-34b/c polymorphism and the risk of CHD in both genotype and allelic frequency. In a subsequent analysis of the association between this polymorphism and CHD classification, there was still no significant difference in both genotype and allelic frequency. Our results suggest that the pri-miR-34b/c polymorphism rs4938723 is not associated with susceptibility to sporadic CHD in the Han Chinese population.


Asunto(s)
Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Cardiopatías Congénitas/genética , MicroARNs/genética , Estudios de Casos y Controles , Niño , Preescolar , China , Femenino , Genotipo , Humanos , Lactante , Masculino , Polimorfismo de Nucleótido Simple
11.
Transplant Proc ; 39(5): 1620-2, 2007 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-17580202

RESUMEN

Recent advances suggest human umbilical cord is a new source for stem cells. Our laboratory has established a method to readily isolate and expand stem cells from human umbilical cord tissues. The aim of this study was to investigate the therapeutic potential of human umbilical cord-derived stem (UCDS) cells in ischemic diseases. The UCDS cells were characterized by flow cytometry and differentiation into osteogenic and adipogenic cells. Unilateral hind limb ischemia was surgically induced by femoral artery ligation in nude mice. The animals were intramuscularly injected with 10(6) UCDS cells or control phosphate-buffered saline. Blood perfusion of ischemic limbs was detected by laser Doppler perfusion imaging. Transplantation of UCDS cells to the ischemic limbs of nude mice significantly improved the blood flow to the affected limbs. Thus, transplantation of UCDS cells may potentially be a promising treatment for human ischemic diseases.


Asunto(s)
Trasplante de Células Madre de Sangre del Cordón Umbilical , Miembro Posterior/irrigación sanguínea , Isquemia/terapia , Animales , Humanos , Masculino , Ratones , Ratones Desnudos , Trasplante Heterólogo , Cordón Umbilical
12.
Eur Rev Med Pharmacol Sci ; 20(8): 1516-20, 2016 04.
Artículo en Inglés | MEDLINE | ID: mdl-27160123

RESUMEN

OBJECTIVE: The present study was designed to explore expression and prognostic value of miR-485-5p in patients with gastric cancer. PATIENTS AND METHODS: We determined the expression level of miR-485-5p in 132 cases of paired GC and adjacent non-tumor tissues by quantitative real-time PCR (qRT-PCR). The relevance of miR-485-5p expression to the clinicopathological factors was assessed. Overall survival (OS) was examined using Kaplan-Meier curves and the Cox proportional hazards regression model. RESULTS: The expression of miR-485-5p was significantly down-regulated in GC tissues compared with adja-cent normal tissues (p < 0.01). MiR-485-5p expression was positively correlated with larger tumor size (p = 0.003), deeper invasion depth, (p = 0.005), positive lymph node metastasis (p = 0.039), advanced tumor-node-metastasis (TNM) stage (p = 0.017). Patients survival analysis showed that a clear positive correlation between miR-485-5p expression level and survival time of gastric cancer patients (p < 0.001). Multivariate analyses confirmed that a low level of miR-485-5p expression was an independent predictor of poor prognosis in GC patients. CONCLUSIONS: Expression level of miR-485-5p serves as a novel biomarker for the overall survival of patients with gastric cancer.


Asunto(s)
MicroARNs/metabolismo , Neoplasias Gástricas , Humanos , Metástasis Linfática , Pronóstico , Modelos de Riesgos Proporcionales
13.
Biomaterials ; 25(10): 1883-90, 2004 May.
Artículo en Inglés | MEDLINE | ID: mdl-14738852

RESUMEN

Poly(L-lactide-co-epsilon-caprolactone) [P(LLA-CL)] with L-lactide to epsilon-caprolactone ratio of 75 to 25 has been electrospun into nanofibers. The relationship between electrospinning parameters and fiber diameter has been investigated. The fiber diameter decreased with decreasing polymer concentration and with increasing electrospinning voltage. The X-ray diffractometer and differential scanning colorimeter results suggested that the electrospun nanofibers developed highly oriented structure in CL-unit sequences during the electrospinning process. The biocompatibility of the nanofiber scaffold has been investigated by culturing cells on the nanofiber scaffold. Both smooth muscle cell and endothelial cell adhered and proliferated well on the P(LLA-CL) nanofiber scaffolds.


Asunto(s)
Materiales Biocompatibles/química , Materiales Biomiméticos/química , Células Endoteliales/citología , Miocitos del Músculo Liso/citología , Poliésteres/química , Ingeniería de Tejidos/métodos , Materiales Biocompatibles/síntesis química , Materiales Biomiméticos/síntesis química , Técnicas de Cultivo de Célula/métodos , División Celular/fisiología , Tamaño de la Célula , Células Cultivadas , Electroquímica , Células Endoteliales/fisiología , Matriz Extracelular , Miocitos del Músculo Liso/fisiología , Nanotecnología/métodos , Nanotubos/química , Nanotubos/ultraestructura , Poliésteres/síntesis química , Rotación , Textiles
14.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 14(10): 579-82, 1994 Oct.
Artículo en Zh | MEDLINE | ID: mdl-7719086

RESUMEN

Through the treatment of 65 cases of painful diseases with electroacupuncture, in comparing with the analgesic effect of contralateral stimulation (CS) and ipsilateral stimulation (IS), it was verified that IS and CS had the similar effect on pain-relieving, while CS was better in improving motor impairment. By testing the rat's pain threshold and recording the neuronal activity in the D-PAG, it was found that neither IS nor CS could increase the pain threshold in the unilateral D-PAG lesioned rats, and the excited neuronal discharge was recorded in the unilateral D-PAG by stimulating rat's Zusanli (ST 36) at each side. It indicates that IS and CS might share the same high level afferent pathway in acupuncture analgesia in CNS.


Asunto(s)
Analgesia por Acupuntura , Terapia por Acupuntura/métodos , Electroacupuntura , Umbral del Dolor , Adulto , Anciano , Animales , Potenciales Evocados , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Migrañosos/terapia , Sustancia Gris Periacueductal/fisiopatología , Periartritis/terapia , Ratas , Ratas Wistar , Articulación del Hombro , Codo de Tenista/terapia
15.
Cell Death Dis ; 4: e828, 2013 Oct 03.
Artículo en Inglés | MEDLINE | ID: mdl-24091671

RESUMEN

Accumulating evidence indicates that cancer-initiating cells (CICs) are responsible for cancer initiation, relapse, and metastasis. Colorectal carcinoma (CRC) is typically classified into proximal colon, distal colon, and rectal cancer. The gradual changes in CRC molecular features within the bowel may have considerable implications in colon and rectal CICs. Unfortunately, limited information is available on CICs derived from rectal cancer, although colon CICs have been described. Here we identified rectal CICs (R-CICs) that possess differentiation potential in tumors derived from patients with rectal adenocarcinoma. The R-CICs carried both CD44 and CD54 surface markers, while R-CICs and their immediate progenies carried potential epithelial-mesenchymal transition characteristics. These R-CICs generated tumors similar to their tumor of origin when injected into immunodeficient mice, differentiated into rectal epithelial cells in vitro, and were capable of self-renewal both in vitro and in vivo. More importantly, subpopulations of R-CICs resisted both 5-fluorouracil/calcium folinate/oxaliplatin (FolFox) and cetuximab treatment, which are the most common therapeutic regimens used for patients with advanced or metastatic rectal cancer. Thus, the identification, expansion, and properties of R-CICs provide an ideal cellular model to further investigate tumor progression and determine therapeutic resistance in these patients.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/patología , Resistencia a Antineoplásicos , Mesodermo/patología , Células Madre Neoplásicas/patología , Neoplasias del Recto/tratamiento farmacológico , Neoplasias del Recto/patología , Animales , Anticuerpos Monoclonales Humanizados/farmacología , Anticuerpos Monoclonales Humanizados/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Apoptosis/efectos de los fármacos , Carcinogénesis/efectos de los fármacos , Carcinogénesis/patología , Diferenciación Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Cetuximab , Medio de Cultivo Libre de Suero/farmacología , Resistencia a Antineoplásicos/efectos de los fármacos , Transición Epitelial-Mesenquimal/efectos de los fármacos , Fluorouracilo/farmacología , Fluorouracilo/uso terapéutico , Humanos , Receptores de Hialuranos/metabolismo , Molécula 1 de Adhesión Intercelular/metabolismo , Leucovorina/farmacología , Leucovorina/uso terapéutico , Ratones , Células Madre Neoplásicas/efectos de los fármacos , Células Madre Neoplásicas/metabolismo , Compuestos Organoplatinos/farmacología , Compuestos Organoplatinos/uso terapéutico , Fenotipo , Esferoides Celulares/efectos de los fármacos , Esferoides Celulares/patología , Ensayos Antitumor por Modelo de Xenoinjerto
16.
Acta Biomater ; 6(2): 372-82, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19632361

RESUMEN

Electrospinning of collagen and chitosan blend solutions in a 1,1,1,3,3,3-hexafluoroisopropanol/trifluoroacetic acid (v/v, 90/10) mixture was investigated for the fabrication of a biocompatible and biomimetic nanostructure scaffold in tissue engineering. The morphology of the electrospun collagen-chitosan nanofibers was observed by scanning electron microscopy (SEM) and stabilized by glutaraldehyde (GTA) vapor via crosslinking. Fourier transform infrared spectra analysis showed that the collagen-chitosan nanofibers do not change significantly, except for enhanced stability after crosslinking by GTA vapor. X-ray diffraction analysis implied that both collagen and chitosan molecular chains could not be crystallized in the course of electrospinning and crosslinking, and gave an amorphous structure in the nanofibers. The thermal behavior and mechanical properties of electrospun collagen-chitosan fibers were also studied by differential scanning calorimetry and tensile testing, respectively. To assay the biocompatibility of electrospun fibers, cellular behavior on the nanofibrous scaffolds was also investigated by SEM and methylthiazol tetrazolium testing. The results show that both endothelial cells and smooth muscle cells proliferate well on or within the nanofiber. The results indicate that a collagen-chitosan nanofiber matrix may be a better candidate for tissue engineering in biomedical applications such as scaffolds.


Asunto(s)
Quitosano/química , Colágeno/química , Endotelio/citología , Matriz Extracelular , Músculo Liso/citología , Nanofibras , Materiales Biocompatibles , Microscopía Electrónica de Rastreo , Imitación Molecular , Espectroscopía Infrarroja por Transformada de Fourier , Difracción de Rayos X
17.
Cell Prolif ; 41(5): 803-12, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18616697

RESUMEN

OBJECTIVES: In this study, a group of cells that expressed both osteogenic and adipogenic characters was identified from murine adipose stromal cells. MATERIALS AND METHODS: These cells could be enriched in the Sca-1-1 population and express both osteogenic and adipogenic genes. Osteogenic induction enhanced expression of osteogenic genes and inhibited expression of adipogenic genes, while adipogenic induction enhanced expression of adipogenic genes and inhibited expression of osteogenic genes. These cells have been called osteo-adipo progenitors (OAPs). RESULTS: OAPs expressed transcription factor runt-related transcription factor 2 (RUNX2) and peroxisome proliferator-activated receptor-gamma (PPAR-gamma) proteins in cytoplasm. When OAPs were cultured in adipogenic medium, PPAR-gamma moved to the nucleus and the cells differentiated into adipocytes, while the RUNX2 remained in the cytoplasm. In contrast, when OAPs were cultured in osteogenic medium, RUNX2 moved to the nucleus and the cells differentiated to osteocytes, while the PPAR-gamma remained in the cytoplasm. CONCLUSIONS: These experiments suggest that osteoblasts and adipocytes share a common predecessor, the OAP, in murine adipose stromal cells.


Asunto(s)
Adipocitos/citología , Tejido Adiposo/citología , Osteocitos/citología , Células Madre/citología , Adipogénesis/genética , Animales , Ataxina-1 , Ataxinas , Diferenciación Celular , Linaje de la Célula , Movimiento Celular , Separación Celular , Medios de Cultivo , Citometría de Flujo , Técnica del Anticuerpo Fluorescente , Regulación de la Expresión Génica , Ratones , Proteínas del Tejido Nervioso/metabolismo , Proteínas Nucleares/metabolismo , Osteogénesis , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Células del Estroma/citología
18.
Leukemia ; 22(1): 170-8, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17851553

RESUMEN

A novel nude mice model of human extranodal nasal type NK/T-cell lymphoma was established by subcutaneously implanting the sample taken from the patient with secondary extranodal nasal type NK/T-cell lymphoma of the stomach into the right axillary region of a BALB/c (nu/nu) nude mouse. This model had been successfully transplanted in vivo for thirty-two generations with a stable growth cycle. The survival rates of both resuscitation and transplantation were 100%. Histologically, the tumor cells were medium to large size and arranged in sheets, with a little mesenchyma, and disseminated almost in all passages of the lymphoma-bearing nude mice. Immunologically, the tumor cells were positive for CD56, cytoplasmic CD3, granzyme B or TIA-1 and LMP1, sometimes for CD8 but negative for surface CD3, CD7, CD20 and CD1a. EBER1/2 was found. No T-cell receptor gamma gene rearrangement was detected in the transplanted tumors. Furthermore, both human sequencing-tagged sites SY14 and Y chromosome were detected by PCR or fluorescent in situ hybridization, respectively, in the transplanted tumor. The transplanted tumor in this novel nude mice model maintained the essential features of human extranodal nasal type NK/T-cell lymphoma, and it would be an ideal tool in vivo for further research of the tumor.


Asunto(s)
Modelos Animales de Enfermedad , Células Asesinas Naturales , Linfoma de Células T/patología , Neoplasias Nasales/patología , Animales , Resultado Fatal , Femenino , Humanos , Inmunofenotipificación , Hibridación Fluorescente in Situ , Linfoma de Células T/inmunología , Masculino , Ratones , Ratones Endogámicos BALB C , Ratones Desnudos , Persona de Mediana Edad , Neoplasias Nasales/inmunología
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