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Volume 66, Issue 4 (7-2008)
Abstract
Background: Ewing's sarcoma is one of the most malignant tumors in children and young adults. Only a few established cell lines of Ewing's sarcoma have been reported, which makes it difficult to study the biological features of these tumors. We have recently established a new Ewing's sarcoma cell line designated SS-ES-1, originating from a thoracic tumor of a 16-year-old female patient. The SS-ES-1 cells have been grown continuously in culture for over 90 passages. In this report, some characteristics of SS-ES-1 cells are presented.
Methods: The cells were grown in DMEM medium supplemented with 10% fetal bovine serum (FBS), 100 mg/ml streptomycin and 100 U/ml penicillin in a humidified atmosphere with 7% CO2 at 37 ºC. The cells were immunocytochemically characterized using a panel of monoclonal and polyclonal antibodies. Furthermore, the chemo-sensitivity of this cell line to some anticancer drugs was assessed using MTT assay and IC50 values were determined.
Results: Morphologically, the SS-ES-1 cell line is composed of poorly differentiated small round cells growing in a multilayer pattern. The immunocytochemical staining demonstrates strong reactivity to CD99, cytokeratin, neurofilament, p53 and Ki67 proteins, but no reactivity to GFAP. Based on IC50 values, SS-ES-1 cells display considerable sensitivity to vinblastine (2±0.7 pM), followed by vincristine (0.3±0.12 nM), doxorubicin (0.05±0.03 µM), etoposide (0.64±0.28 µM) and cisplatin (0.67±0.45 µM).
Conclusions: In conclusion, the SS-ES-1 cell line demonstrates unique cellular properties, which make it a useful model for studying various aspects of the biology of Ewing's sarcoma.
Aref Teymurinejad, Hossein Seidkhani , Zahra Mohebinejad, Amirreza Eidypou , Hamed Azadi ,
Volume 83, Issue 7 (10-2025)
Abstract
Background: Kidney stones are the third most common urinary tract disorder after prostate disease and infection. Painful attacks are the most common clinical manifestation, which is known as renal colic. The aim of the present study is to determine the effect of pethidine, pethidine and ketorolac, and ketorolac in patients with primary renal colic.
Methods: Renal colic patients at Imam Khomeini Hospital in Ilam from April 2023 and March 2023. were divided into three groups of 36 people. The first group received pethidine 25 mg, the second group received ketorolac 30 mg, and the third group received a combination of 2 drugs. A questionnaire included demographic information of the patients, heart rate, systolic and diastolic blood pressure, respiratory rate, oxygen saturation, side effects, pain intensity, length of hospitalization, and type of treatment received.
Results: After receiving the drug, the average heart rate increased in all three groups. But in group A, this increase was less than two groups, B and C, and this difference was not statistically significant (P=0.34). The average systolic blood pressure before receiving the drug was significantly higher in the three studied groups (P=0.006), which decreased after receiving the drug, but this decrease in systolic blood pressure in the three groups was not statistically significant (P=0.98). The average pain intensity before receiving the drug was 8.56 ± 1.2 in group A, 9.17 ± 0.878 in group B, and 8.86 ± 0.961 in group C. There was no significant difference between the three groups in terms of initial pain intensity (P=0.45). While the average pain intensity after receiving the medicine was significantly reduced and there was a significant difference (P<0.000).
Conclusion: Overall, the obtained results showed that ketorolac and pethidine have a faster effect and power compared to pethidine and ketorolac alone in controlling the pain of patients with renal colic, and the need for life-saving treatment is also less in this drug, and according to numerous studies, its side effects are also less.
