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1.
Chinese Journal of Medical Genetics ; (6): 39-42, 2022.
Article in Chinese | WPRIM | ID: wpr-928357

ABSTRACT

OBJECTIVE@#To explore the genetic basis for a neonate affected with Glutaric aciduria type I (GA-I).@*METHODS@#Targeted capture and high-throughput sequencing was carried out for the proband and her parents. Candidate variants were verified by Sanger sequencing.@*RESULTS@#The proband was found to harbor compound heterozygous variants of the GCDH gene, namely c.523G>A and c.1190T>C, which was derived from her father and mother, respectively.@*CONCLUSION@#The compound heterozygous variants of the GCDH gene probably underlay the GA-I in the patient.


Subject(s)
Child , Female , Humans , Infant, Newborn , Amino Acid Metabolism, Inborn Errors/genetics , Brain Diseases, Metabolic/genetics , Glutaryl-CoA Dehydrogenase/genetics , High-Throughput Nucleotide Sequencing , Mutation
2.
Chinese Journal of Anesthesiology ; (12): 700-703, 2022.
Article in Chinese | WPRIM | ID: wpr-957513

ABSTRACT

Objective:To evaluate the efficacy of S-ketamine mixed with hydromorphone for improving patient-controlled intravenous analgesia (PCIA) after lumbar spinal surgery.Methods:Ninety-six American Society of Anesthesiologists physical status Ⅰ or Ⅱ patients, aged 18-64 yr, with body mass index of 18.5-29.9 kg/m 2, scheduled for elective lumbar fusion surgery under general anesthesia, were divided into 2 groups ( n=48 each) using a random number table method: hydromorphone for PCIA group (group H) and S-ketamine mixed with hydromorphone for PCIA group (group S+ H). PCIA was performed at the end of operation.PCIA solution contained hydromorphone 0.05 mg/ml mixed with S-ketamine 0.25 mg/ml in group S+ H and hydromorphone 0.05 mg/ml in group H. The PCIA pump was set up to deliver a 2 ml bolus dose with a 10-min lockout interval, background infusion at 2 ml/h and total volume of 200 ml.When the numerical rating scale score ≥4 and analgesia was ineffective by pressing the PCA pump for 3 consecutive times, hydromorphone 0.2 mg was intravenously injected as rescue analgesic.The cumulative consumption of hydromorphone (consumption for analgesic pump and consumption for rescue analgesia) and occurrence of adverse reactions such as pruritus, respiratory depression, nausea, vomiting, drowsiness, dizziness, headache, hallucinations and nightmares within 48 h after operation were recorded.The patients′ satisfaction with analgesia was recorded at 48 h after operation.The time to first flatus after operation and quality of recovery (QoR-15 scale) at 24 and 48 h after operation were recorded. Results:Compared with group H, the cumulative consumption of hydromorphone within 48 h after surgery were significantly reduced, the patients′ satisfaction with analgesia was increased, the time to first flatus after operation was shortened, QoR-15 scores were increased at 24 and 48 h after operation ( P<0.05), and no significant change was found in the requirement for rescue analgesia and incidence of adverse reactions within 48 h after surgery in group S+ H ( P>0.05). Conclusions:Compared with PCIA with hydromorphone, S-ketamine mixed with hydromorphone can reduce postoperative consumption of hydromorphone, increase satisfaction with analgesia, and promote early postoperative recovery after lumbar spinal surgery.

3.
Cancer Research and Treatment ; : 724-732, 2021.
Article in English | WPRIM | ID: wpr-889770

ABSTRACT

Purpose@#Capecitabine is an extensively used oral prodrug of 5-fluorouracil in treatment of colon cancer and is known to cause hand-foot syndrome (HFS). As the target enzyme for capecitabine, thymidylate synthase (TYMS) plays a key role for 5-fluorouracil metabolism and has been associated with some side effects caused by capecitabine. The aim of our study is to identify the possible genetic predictors of capecitabine-induced HFS (CAP-HFS) in Chinese colorectal cancer patients. @*Materials and Methods@#Whole exons of TYMS were sequenced for 288 extreme phenotype HFS patients, including 144 severe or early-onset (first 2 cycles) moderate HFS extreme cases and 144 extreme controls with no reported HFS. The associations between polymorphisms and CAP-HFS were analyzed using logistic regression under an additive model. @*Results@#We identified a novel risk mutation (c.1A>G, chr18:657743), was associated with severe HFS in an extreme case who was affected during the first cycle of treatment. Moreover, we identified three new variants, rs3786362, rs699517, rs2790, and two previously reported variants, 5’VNTR 2R/3R and 3′-untranslated region 6-bp ins-del, which were significantly associated with CAP-HFS (p < 0.05). In silico analysis revealed that the effect of these polymorphisms in the TYMS region on the development of HFS might not be restricted solely to the regulation of TYMS expression, but also the TYMS catalytic activity through the indirect effect on ENOSF1 expression. @*Conclusion@#This study identified new polymorphisms in TYMS gene significantly associated with CAP-HFS, which may serve as useful genetic predictors for CAP-HFS and help to elucidate the underlying mechanism of HFS.

4.
Cancer Research and Treatment ; : 724-732, 2021.
Article in English | WPRIM | ID: wpr-897474

ABSTRACT

Purpose@#Capecitabine is an extensively used oral prodrug of 5-fluorouracil in treatment of colon cancer and is known to cause hand-foot syndrome (HFS). As the target enzyme for capecitabine, thymidylate synthase (TYMS) plays a key role for 5-fluorouracil metabolism and has been associated with some side effects caused by capecitabine. The aim of our study is to identify the possible genetic predictors of capecitabine-induced HFS (CAP-HFS) in Chinese colorectal cancer patients. @*Materials and Methods@#Whole exons of TYMS were sequenced for 288 extreme phenotype HFS patients, including 144 severe or early-onset (first 2 cycles) moderate HFS extreme cases and 144 extreme controls with no reported HFS. The associations between polymorphisms and CAP-HFS were analyzed using logistic regression under an additive model. @*Results@#We identified a novel risk mutation (c.1A>G, chr18:657743), was associated with severe HFS in an extreme case who was affected during the first cycle of treatment. Moreover, we identified three new variants, rs3786362, rs699517, rs2790, and two previously reported variants, 5’VNTR 2R/3R and 3′-untranslated region 6-bp ins-del, which were significantly associated with CAP-HFS (p < 0.05). In silico analysis revealed that the effect of these polymorphisms in the TYMS region on the development of HFS might not be restricted solely to the regulation of TYMS expression, but also the TYMS catalytic activity through the indirect effect on ENOSF1 expression. @*Conclusion@#This study identified new polymorphisms in TYMS gene significantly associated with CAP-HFS, which may serve as useful genetic predictors for CAP-HFS and help to elucidate the underlying mechanism of HFS.

5.
Chinese Medical Journal ; (24): 943-947, 2019.
Article in English | WPRIM | ID: wpr-772172

ABSTRACT

BACKGROUND@#To prevent risk of life-threatening stent thrombosis, all patients need to undergo dual antiplatelet therapy (DAPT) for at least 6 weeks to 12 months after stent implantation. If DAPT is continued during noncardiac surgery, there is a risk of severe bleeding at the surgical site. Our study was to assess the risk of bleeding in patients with continued DAPT during orthopedic surgery.@*METHODS@#The clinical data of 78 patients with coronary heart disease who underwent orthopedic surgery from February 2006 to July 2018 were retrospectively analyzed. Prior to orthopedic surgery, DAPT was continued in 16 patients (group I), 24 patients were treated with single antiplatelet therapy (group II), and 26 patients received low-molecular-weight heparin therapy for more than 5 days after the discontinuation of all antiplatelet therapies (group III). Twelve patients were excluded, as they had undergone minimally invasive surgery such as transforaminal endoscopy and vertebroplasty. The perioperative blood loss of each patient was calculated using Nadler's formula and Gross' formula. The intraoperative bleeding volume, total volume of intraoperative bleeding in addition to postoperative drainage, and total blood loss were compared between groups. The level of significance was set at P  0.05). Six patients experienced postoperative cardiovascular complications due to the delayed restart of antiplatelet therapy; one of these patients in group III died from myocardial infarction.@*CONCLUSIONS@#Continued DAPT or single antiplatelet treatment during orthopedic surgery does not increase the total intraoperative and perioperative bleeding compared with switching from antiplatelet therapy to low-molecular-weight heparin. However, the discontinuation of antiplatelet therapy increases the risk of serious cardiac complications.


Subject(s)
Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Hemorrhage , Epidemiology , Orthopedic Procedures , Orthopedics , Methods , Platelet Aggregation Inhibitors , Therapeutic Uses , Postoperative Complications , Retrospective Studies
6.
Journal of Medical Informatics ; (12): 46-48, 2017.
Article in Chinese | WPRIM | ID: wpr-669151

ABSTRACT

The paper conducts whole-process management of digital medical records after visualized traditional paper medical records are stored in the database,and introduces the framework,application and its realization of the digital medical record information system which is able to change the management mode of traditional medical records,optimize the working process,achieve the integration of medical records information resources,and improve comprehensively the medical records management level.

7.
Chinese Journal of Cancer ; (12): 330-338, 2014.
Article in English | WPRIM | ID: wpr-320514

ABSTRACT

MicroRNAs (miRNAs), which play a role in tumorigenesis, may also serve as diagnostic or prognostic biomarkers. However, studies on human miRNA profiles in plasma from nasopharyngeal carcinoma (NPC) patients are in their infancy. Here, we used microarrays to perform systematic profiling of human miRNAs in plasma from NPC patients. We subsequently used real-time quantitative polymerase chain reaction (Q-PCR) to validate miRNAs with aberrant expression that could serve as potential biomarkers. By comparing the plasma miRNA profiles of 31 NPC patients and 19 controls, 39 of 887 human miRNAs were found to be aberrantly expressed. Considering the fold change and P value, miR-548q and miR-483-5p were validated in 132 samples from 82 NPC patients and 50 controls. Moreover, high expression of miR-548q and miR-483-5p was further found in 3 NPC cell lines and clinical biopsy tissues from 54 NPC patients and 22 controls. Our results revealed that miR-548q and miR-483-5p are potential biomarkers of NPC. Combining the receiver operating characteristic (ROC) analyses of these 2 miRNAs, an area under the ROC curve (AUC) of 0.737 with 67.1% sensitivity and 68.0% specificity were obtained, showing the preliminary diagnostic value of plasma miRNAs. Moreover, most NPC patients with a poor outcome exhibited high expression (> median) of miR-548q (70.6%) and miR-483-5p (64.7%) in tissue samples, indicating their prognostic value. The high expression levels of miR-548q and miR-483-5p in plasma, cell lines, and clinical tissues of NPC patients indicate that their roles in NPC should be explored in the future.


Subject(s)
Aged , Humans , Biomarkers , Carcinoma , MicroRNAs , Nasopharyngeal Neoplasms , Plasma , Prognosis , Real-Time Polymerase Chain Reaction , Sensitivity and Specificity
8.
Chinese Journal of Epidemiology ; (12): 385-388, 2013.
Article in Chinese | WPRIM | ID: wpr-318392

ABSTRACT

Objective To assess the impact of tea consumption on the risk of osteoporotic hip fractures.Methods Between January 2008 and June 2012,581 (148 males,433 females) incident cases of hip fractures were enrolled from four hospitals in Guangdong province,with 581 sex-and age-matched (± 3 years) controls from either hospitals or communities.Face-to-face interviews wer conducted to collect data pertaining to tea drinking and various covariates.Results Results from univariate conditional logistic analyses showed that an inverse association was observed in tea drinking and hip fracture risk.Longer time,greater frequency and dosage of tea consumption were dose-dependently associated with lower risk of hip fractures (P-trend <0.05).Compared to non drinkers,the odd ratios related to regular tea drinkers,subgroups with different length,frequency,dosage,type of tea consumption were ranged between 0.54 and 0.74 (all P<0.05).After adjustment for factors as age,daily energy intake,BMI,education levels,passive smoking,calcium supplement and physical activity,the dose-dependent associations among above said factors still remained significant.However,the strength of the association lowered slightly.The beneficial effect of tea was significant only in men but not in women.Similar effects were found in subjects with different education levels.Conclusion Regular tea drinking habit might decrease the risk of osteoporotic hip fractures in the elderly males.

9.
Chinese Journal of Epidemiology ; (12): 554-558, 2011.
Article in Chinese | WPRIM | ID: wpr-273142

ABSTRACT

Objective To assess the relationship between cardiovascular risk factors and osteoporosis. Methods 2202 women aged 50-73 years were included in this cross-sectional study from the communities in Guangzhou, from July 2008 to January 2010. Cardiovascular risk factors including age, years since menopause, physical activity, anthropometrics, body composition, blood pressure, fasting serum lipids, glucose and uric acid, intima-media thickness(IMT) of carotid artery were assessed. Ultrasonic bone density (speed of sound) at the radius and tibia were determined. Osteoporosis was defined as T-score≤-2.5. Common factors for the cardiovascular risk factors were extracted using the factor analysis method. Results Eight common factors representing obesity, lean mass, blood triglycerides and uric acid, cholesterol, age, blood pressure, IMT and physical activity were extracted. Data from the Multivariate logistic regression showed a dose-dependent association of greater scores of age and IMT factors and lower score of lean mass factor with the increased risk of osteoporosis at the radius and tibia. As compared with the bottom quartile, the OR (95%CI) of radius and tibia osteoporosis were 0.62 (0.44-0.88) and 0.62 (0.48-0.80) for lean mass factor, 4.02 (2.72-5.94) and 3.68(2.81-4.82) for age factor, 1.41 (1.00-2.00) and 1.54 (1.19-2.00) for IMT factors, respectively. Moreover, greater blood pressure score was associated with higher risk of radius osteoporosis while the higher obese score, was correlated with the increased risk of tibia osteoporosis. Conclusion The cardiovascular-related risk factors of greater IMT, obesity, blood pressure and lower lean mass scores were associated with increased osteoporosis risks while called for more concern among the Chinese women.

10.
Chinese Journal of Oncology ; (12): 164-169, 2009.
Article in Chinese | WPRIM | ID: wpr-255538

ABSTRACT

<p><b>OBJECTIVE</b>Hepatic stellate cells (HSC) in hepatocellular carcinoma (HCC) transdifferentiate into extracellular matrix-producing myofibroblasts. Activated HSC can promote invasion and metastasis of HCC. To understand the differences of HSC in normal liver and HCC, we compared the gene expression patterns in HCC cell induction-activated and culture-activated rat HSC.</p><p><b>METHODS</b>HSC were isolated by density centrifugation and exposed to conditioned medium from rat HCC cell line C5F. Expression of 22 012 genes in quiescent HSC, culture-activated HSC and HCC induction-activated HSC was analyzed by cDNA microarray and confirmed by real-time RT-PCR and Western blot.</p><p><b>RESULTS</b>1672 genes were differentially expressed in culture-activated HSC, including proinflammatory factors, cell adhesion molecules, cell surface receptors, signaling transduction molecules and immune factors. 711 genes were differentially expressed in HCC induction-activated HSC. Some of them were identical to those in culture-activated HSC. HCC Induction-activated HSC showed specific gene expression patterns, including Raf1, Rac2, Adam17, Wnt6, MMP-9 and TNF, suggesting that HCC cells can specifically induce HSC activation.</p><p><b>CONCLUSION</b>The gene expression patterns in HCC induction-activated HSC are different from those in culture-activated HSC. HCC induction-activated HSC may play a major role in the invasion and metastasis of HCC. In vivo activation should be considered as the standard for the study of HSC biology. HCC induction-activated HSC should be considered as the standard for HSC biology studies.</p>


Subject(s)
Animals , Male , Rats , Carcinoma, Hepatocellular , Metabolism , Pathology , Cell Line, Tumor , Cells, Cultured , Gene Expression Profiling , Gene Expression Regulation, Neoplastic , Hepatic Stellate Cells , Metabolism , Pathology , Liver Neoplasms , Metabolism , Pathology , Oligonucleotide Array Sequence Analysis , Rats, Inbred F344
11.
Chinese Journal of Hepatology ; (12): 665-668, 2009.
Article in Chinese | WPRIM | ID: wpr-306706

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the role of metronomic chemotherapy of S-1 on angiogenesis of hepatocellular carcinoma in animal model.</p><p><b>METHOD</b>S-1 was dissolved in a 0.5% (w/v) HPMC solution. 30 LCI-D20 were randomly devided into five groups: control group(O), 10 mg * kg(-1) * d(-1) S-1 group (A), 1 mg * kg(-1) * d(-1) S-1 group (B), 0.5 mg * kg(-1) * d(-1) S-1 group (C) and 0.25 mg * kg(-1) * d S-1 group (D). 28 days after the treatment with 0.5% (w/v) HPMC solution, tumors in LCI-D20 mice were moved out. Tumor mass was measured and microvessel density (MVD) was used to evaluate angiogenesis in tumor. The cellular apoptosis was determined using flow cytometry. The expression of VEGF, bFGF and TSP-1 was measured by RT-PCR.</p><p><b>RESULTS</b>The mean tumor mass was 2.01, 0.38, 1.12, 1.38, 2.27 g in O, A, B, C, D group, respectively. The mean MVD was 39.57, 19.90, 5.93, 17.10, 29.53 in O, A, B, C, D respectively. The mean tumor cellular apoptosis rate was 4.08%, 44.37%, 31.73%, 19.83%, and 8.25% in O, A, B, C, D respectively. The expression of VEGF and bFGF in O group was highest, and A was slightly low, and C and D taked the third place, and B was the lowst; The expression of TSP-1 in B was highest, and C and D were slightly low, and A taked the third place, and O was the lowst.</p><p><b>CONCLUSION</b>Metronomic chemotherapy of S-1 destabilizes pre-existing tumor vasculature and inhibits ongoing angiogenesis.</p>


Subject(s)
Animals , Male , Mice , Antimetabolites, Antineoplastic , Therapeutic Uses , Apoptosis , Carcinoma, Hepatocellular , Drug Therapy , Pathology , Drug Combinations , Fibroblast Growth Factor 2 , Genetics , Metabolism , Liver Neoplasms, Experimental , Drug Therapy , Pathology , Mice, Inbred BALB C , Mice, Nude , Neoplasm Transplantation , Neovascularization, Pathologic , Oxonic Acid , Therapeutic Uses , RNA, Messenger , Genetics , Metabolism , Random Allocation , Reverse Transcriptase Polymerase Chain Reaction , Tegafur , Therapeutic Uses , Vascular Endothelial Growth Factors , Genetics , Metabolism
12.
Chinese Journal of Hepatology ; (12): 431-434, 2006.
Article in Chinese | WPRIM | ID: wpr-341341

ABSTRACT

<p><b>OBJECTIVES</b>To investigate the cure effect of tumor antigen specific CTL on a model of human hepatocellular carcinoma in nude mice LCI-D20.</p><p><b>METHODS</b>Dendritic cells (DCs) were induced from peripheral blood mononuclear cells of healthy people in vitro by using recombinant human granulocyte-macrophage colony stimulating factor (rhGM-CSF) and interleukin-4 (rhIL-4) and were pulsed with tumor antigen from hepatocellular carcinoma cell line MHCC97H. Then tumor antigen specific cytotoxic T lymphocytes (CTLs) were induced. By intraperitoneal injection of tumour antigen specific CTLs into the LCI-D20, the preventive and therapeutic effects of these CTLs to HCC in the LCI-D20 model were assessed. Cytokine-induced killer (CIK) cells and phosphate buffer solution were used as controls at the same time.</p><p><b>RESULTS</b>The weights of tumors in the tumor antigen specific CTL group, in the CIK cell group and in the blank group were (1.11+/-0.63), (1.12+/-0.36) and (2.68+/-0.53) grams respectively (t = 5.18, t = 6.06, P < 0.01). The amount of blood alpha fetal protein in the tumor antigen specific CTL and CIK groups were (52.1+/-9.7) microg/L and (48.6+/-5.2) microg/L, and was (82.2+/-7.2) microg/L in the blank group (t = 17.26, t = 22.07, P < 0.01 respectively). The metastasis rates in livers were 16.7%, 16.7% and 58.3% in the tumor antigen specific CTL, CIK cell and blank control groups respectively (chi2= 4.44, P < 0.01). The survival time of the mice in the tumor antigen specific CTL group was (79.0+/-5.02) days, (73.3+/-7.0) days in the CIK group, and (52.3+/-5.2) days in the blank group (t = 14.56, t = 17.54, P < 0.01).</p><p><b>CONCLUSION</b>Tumor antigen specific CTLs may prevent metastasis in the LCI-D20 model and prolong the survival time.</p>


Subject(s)
Animals , Male , Mice , Antigens, Neoplasm , Allergy and Immunology , Carcinoma, Hepatocellular , Allergy and Immunology , Pathology , Cell Line, Tumor , Dendritic Cells , Cell Biology , Allergy and Immunology , Granulocyte-Macrophage Colony-Stimulating Factor , Pharmacology , Interleukin-4 , Pharmacology , Liver Neoplasms , Allergy and Immunology , Pathology , Mice, Nude , Neoplasm Metastasis , Neoplasm Transplantation , Recombinant Proteins , T-Lymphocytes, Cytotoxic , Allergy and Immunology
13.
Chinese Journal of Hepatology ; (12): 359-361, 2005.
Article in Chinese | WPRIM | ID: wpr-349111

ABSTRACT

<p><b>OBJECTIVES</b>To study the inhibition effect of Daltepartin Sodium (low molecular weight heparins) on human hepatocellular carcinoma (HCC) in nude mice.</p><p><b>METHODS</b>Metastatic model of HCC was established in nude mice. The model mice were randomly divided into 4 groups; they were the control group (saline solution), chemotherapy group (fluorouracil and Cis-dichlorodiamine platinum), Daltepartin Sodium group (Daltepartin Sodium), combined treatment group (Daltepartin Sodium and chemotherapy). Tumor sizes, tumor inhibition rates, tumor metastases, intratumoral microvessel density (MVD), CD31 and AFP were evaluated.</p><p><b>RESULTS</b>In comparison with the control and the chemotherapy group, the tumor sizes of the Daltepartin Sodium and the combined treatment group were significantly smaller; the tumor inhibitor rates were 0% versus 93.6%, 76.7%, 78.0%; MVD were 20.7+/-6.8 versus 18.2+/-2.6, 4.8+/-1.8 and 6.5+/-2.4; CD31 were 31.8+/-5.7 versus 25.5+/-5.1, 21.6+/-4.8 and 19.6+/-2.4; The incidence of liver metastasis was 80%, versus 70%, 20% and 10%; lung metastasis was 70% versus 60%, 20% and 10%; the peritoneal metastasis was 90% versus 60%, 30%and 30%. AFP were 121.8 ng/ml+/-31.4 ng/ml versus 21.5 ng/ml+/-13.3 ng/ml, 75.6 ng/ml+/-29.7 ng/ml and 55.8 ng/ml+/-38.0 mg/ml. Inhibiting effects of growth and metastasis of HCC in chemotherapy, Daltepartin Sodium and combined treatment groups were significantly different from those of the control group (F=9.191, P < 0.01), Daltepartin Sodium inhibited the angiogensis in the tumors more effectively than that in the control and chemotherapy groups (F=4.937, P < 0.01).</p><p><b>CONCLUSION</b>Daltepartin Sodium can inhibit tumor growth and metastasis by inhibiting tumor angiogenesis in our nude mice HCC model.</p>


Subject(s)
Animals , Male , Mice , Angiogenesis Inhibitors , Therapeutic Uses , Carcinoma, Hepatocellular , Drug Therapy , Pathology , Heparin, Low-Molecular-Weight , Therapeutic Uses , Liver Neoplasms, Experimental , Drug Therapy , Pathology , Mice, Inbred BALB C , Mice, Nude , Neoplasm Metastasis , Neoplasm Transplantation , Random Allocation
14.
Chinese Journal of Hepatology ; (12): 443-446, 2005.
Article in Chinese | WPRIM | ID: wpr-348779

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effectiveness of reconstruction of immunological functions of T cells on the degree of metastases of mouse hepatocarcinoma and the mechanisms of their functioning.</p><p><b>METHODS</b>The T cell model of immunological functions in Balb/c nu/nu mice was established and the effectiveness of the model was evaluated. The mice were divided into 4 groups. The immunological functions of T cells in experiment groups of Balb/c nu/nu mice were reconstructed. Metastases of the cancer in lymph nodes in each group were examined histologically. The formation time and growth rate of the tumors were calculated. The expression of MHCI and II of the tumor cell line and the difference of expression of immune associated gene were detected by Th1-Th2-Th3 gene array.</p><p><b>RESULTS</b>The ratio of CD3, CD4, CD8 and CD4/CD8 in the reconstructed group was higher than that in the control group. The average formation time was 7.7+/-0.6 days in Balb/c nu/nu mice and 11.5+/-1.3 days in Balb/c mice. The extent of metastases of the experiment group was lower than that of the control group (P < 0.05). The expression of MHCI of the high metastasis cell line was lower than that of the low metastasis cell line (P < 0.05). The expressions of Th1/Th2 associated genes in lymphocytes of high metastasis mice were lower than those of the low metastasis mice.</p><p><b>CONCLUSION</b>Reconstruction of the immunological function of T cells can influence the metastasis of mouse hepatocarcinoma. The alteration of MHC molecule and low expression of Th1/Th2 correlated genes in lymphocytes may be a factor influencing the metastasis of liver cancer.</p>


Subject(s)
Animals , Mice , CD4-CD8 Ratio , Carcinoma, Hepatocellular , Allergy and Immunology , Pathology , Liver Neoplasms , Allergy and Immunology , Pathology , Mice, Inbred BALB C , Mice, Nude , Neoplasm Transplantation , T-Lymphocytes , Allergy and Immunology , Th1 Cells , Allergy and Immunology , Th2 Cells , Allergy and Immunology , Tumor Cells, Cultured
15.
Chinese Journal of Oncology ; (12): 533-536, 2002.
Article in Chinese | WPRIM | ID: wpr-301943

ABSTRACT

<p><b>OBJECTIVE</b>To compare gene expression profile of human hepatocellular carcinoma (HCC) cell lines with different metastatic potentials, so as to screen for metastasis-related genes.</p><p><b>METHODS</b>Gene expression profile of MHCC97-L and HCCLM3, two HCC cell lines with similar genetic background but different in spontaneous metastatic potentials, were studied by cDNA microarray.</p><p><b>RESULTS</b>From 1,626 screened genes, 25 differentially expressed genes were found, 18 showed decreased expression including the decreased expression of cell cycle control genes Rb2, mismatch repair gene hMSH2, and signal transduction gene protein kinase C beta 2 and 7 increased expression including signal transduction gene MAP kinase kinase 6, cell proliferation gene E25, immunity related gene SP40, 40, etc in HCCLM3.</p><p><b>CONCLUSION</b>The genes, being closely associated with cancer metastasis, could be considered as potential markers to predict metastasis and targets for anti-metastasis intervention.</p>


Subject(s)
Humans , Blotting, Northern , Carcinoma, Hepatocellular , Genetics , Pathology , Gene Expression , Gene Expression Profiling , Liver Neoplasms , Genetics , Pathology , Neoplasm Metastasis , Genetics , Oligonucleotide Array Sequence Analysis , RNA, Neoplasm , Tumor Cells, Cultured
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