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Ovarian cancer ranks the third among gynecological malignancies, while its mortality rate is the highest. Even though recent treatment progress has been made after using PARP inhibitors, the prognosis is still poor. Anterior gradient protein 2 (AGR2) may be a marker for early diagnosis of ovarian cancer, and the expression of AGR2 suggests that the prognosis of ovarian cancer is better. However, Anterior gradient protein 3 (AGR3) could be used to differentiate high-grade and low-grade ovarian cancer, but its influence on prognosis is still controversial. AGR2 and AGR3 may be therapeutic targets for ovarian cancer. This article introduces the research progress of AGR2 and AGR3 in the diagnosis and treatment of ovarian cancer.
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Objective To investigate the clinical significance of flow cytometry(FCM)in cell apoptosis and prognosis in patients with acute leukemia.Methods FCMpropidium iodide(PI)DNA quantitative stain was used in 55 patients with acute leukemia(acute lymphoblastic leukemia treatment in 20 cases,alleviating period of 25 cases, 10 cases of acute non lymphocytic leukemia)to detect cell apoptosis and DNA cycle content changes,and compared with the control group.Results Acute leukemia cell apoptosis percentage Apo% in remission period was the highest, and it was (26.70 ±4.11)%,which of the initial treatment group was (10.23 ±1.05)%,remission with early treat-ment group and control group,the differences were statistically significant(t =3.970,2.341,all P <0.05).Leukemia DNA index (DI),aneuploid (AN rate),S phase cell percentage (SPF)value were (2.03 ±0.66 ),40% and (15.68 ±2.17)respectively,which were significantly increased.Conclusion The content of DNA in patients with acute leukemia is abnormal,the amount of apoptosis,SPF and other indicators have certain reference value for the prognosis of patients with acute leukemia.
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Objective To investigate the application and clinical significance of flow cytometry(FCM)in cerebrospinal fluid(CSF)detection in the diagnosis of central nervous system leukemia(CNSL).Methods By the CD34,CD45 based different monoclonal antibody combined FCM detection method,CSF of 100 patients with CNSL was detected multi parameter of minimal residual disease(MRD).And with the natural sedimentation of cerebrospinal fluid after smear method,CSF cytology results were compared and analyzed.Results Of the 100 patients,CSF exami-nation was positive in 42 patients.CSF cytology was positive in 16 cases,the difference was statistically significant (χ2 =4.19,P <0.05).10 cases of nervous system symptoms of CSF examination were positive,and only 5 cases of CSF cytology positive(χ2 =6.81,P =0.018).In 100 cases of MRD detection,18 cases increased in white blood cell count,FMC detected in 17 cases,cytological diagnosis of 11 cases (χ2 =5.89,P =0.024).CSF with elevated pres-sure in 11 patients,FCMpositive in 11 cases,cytology detected in 4 cases(χ2 =5.12,P =0.031).CSF protein was elevated in 19 cases,FCMdetected 17 cases,cytology detected 7 cases(χ2 =7.14,P =0.001).Conclusion FCM combined with routine CSF detection can improve the positive rate of CNSL diagnosis,and it has important significance for early detection and treatment of CNSL,and to prolong the disease -free survival of patients with leukemia.
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Objective To analyze the comparability and correlation of reticulocyte parameters on the Beckman‐Coulter LH780 (LH780)and Sysmex XN‐1000(XN‐1000)hematology analyzers .Methods 80 blood samples were measured by the two instru‐ments ,the RBC count ,percentage of Ret(Ret% ) ,Ret value(Ret#)and immature reticulocyte fraction(IRF) were analyzed ,and the correlation of Ret% ,Ret# and IRF between two instruments were also analysed .The correlation between percentage of high laser reticulocyte(HLR% ) of LH780 and percentage of middle fluorescent reticulogyte(MFR% )+percentage of high fluorescent reticu‐locyte(HFR% ) of XN‐1000 were compared using two calculation methods of each instrument ,and the application value of HLR%were analysed .Results No significant differences were founded in RBC count ,Ret% ,and Ret# between the two instruments(P>0 .05) ,while there was statistical difference in IRF between the the two instruments (P<0 .05) .The relative deviation coincidence rate of RBC count was 97 .5% ,the correlation coefficent (r) of Ret% ,Ret# and IRF were 0 .912 ,0 .895 and 0 .666 respectively . There were statistical differences and correlations between HLR% and MFR% + HFR% when using calculation method of XN‐1000 and LH780 respectively(r were 0 .666 and 0 .767 respectively ,P<0 .05) .Conclusion The RBC count could meet the matc‐hing requirement ,and the Ret% and Ret # may be highly correlated on the two instruments .While the reference range of IRF should be established in each instrument .
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Objective To study the effect of 2-methoxyestradiol (2-ME) on proliferation,apoptosis and its mechanism.Methods K562 cells were treated with 2-ME of different concentrations and time in vitro.Cell apoptosis rate was measured by flow cytometry(FCM).Activity of NF-Kappa B in nucleus was detected by electrophoretic molility shift assay(EMSA).Results After treatment with 2-ME,K562 cells apoptotic rate increased significantly.After treatment with 4μmol/L 2-ME for 24h、36h、48h,the activity of Caspase-3 and Caspase-9 were significantly higher and activity of NF-Kappa B in nucleus was significantly lower.Conclusion The present study showed that 2-ME induced apoptosis of K562 cells via active Caspase-3 and Caspase-9 and inhibit the activity of NF-kappa B in nucleus.This study provided useful experimental data for clinical application of 2-ME.