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Davodabadi F, Sajjadi SF, Sarhadi M, Mirghasemi S, Nadali Hezaveh M, Khosravi S, Kamali Andani M, Cordani M, Basiri M, Ghavami S. Cancer chemotherapy resistance: Mechanisms and recent breakthrough in targeted drug delivery. Eur J Pharmacol 2023; 958:176013. [PMID: 37633322 DOI: 10.1016/j.ejphar.2023.176013] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/28/2023]
Abstract
Conventional chemotherapy, one of the most widely used cancer treatment methods, has serious side effects, and usually results in cancer treatment failure. Drug resistance is one of the primary reasons for this failure. The most significant drawbacks of systemic chemotherapy are rapid clearance from the circulation, the drug's low concentration in the tumor site, and considerable adverse effects outside the tumor. Several ways have been developed to boost neoplasm treatment efficacy and overcome medication resistance. In recent years, targeted drug delivery has become an essential therapeutic application. As more mechanisms of tumor treatment resistance are discovered, nanoparticles (NPs) are designed to target these pathways. Therefore, understanding the limitations and challenges of this technology is critical for nanocarrier evaluation. Nano-drugs have been increasingly employed in medicine, incorporating therapeutic applications for more precise and effective tumor diagnosis, therapy, and targeting. Many benefits of NP-based drug delivery systems in cancer treatment have been proven, including good pharmacokinetics, tumor cell-specific targeting, decreased side effects, and lessened drug resistance. As more mechanisms of tumor treatment resistance are discovered, NPs are designed to target these pathways. At the moment, this innovative technology has the potential to bring fresh insights into cancer therapy. Therefore, understanding the limitations and challenges of this technology is critical for nanocarrier evaluation.
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Affiliation(s)
- Fatemeh Davodabadi
- Department of Biology, Faculty of Basic Science, Payame Noor University, Tehran, Iran.
| | - Seyedeh Fatemeh Sajjadi
- School of Biological Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
| | - Mohammad Sarhadi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Shaghayegh Mirghasemi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Mahdieh Nadali Hezaveh
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Samin Khosravi
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran.
| | - Mahdieh Kamali Andani
- Department of Biology, Faculty of Basic Science, Payame Noor University, Tehran, Iran.
| | - Marco Cordani
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, Complutense University of Madrid, Madrid, Spain; Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid, Spain.
| | - Mohsen Basiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Saeid Ghavami
- Academy of Silesia, Faculty of Medicine, Rolna 43, 40-555. Katowice, Poland; Research Institute of Oncology and Hematology, Cancer Care Manitoba-University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Biology of Breathing Theme, Children Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB R3E 3P5, Canada; Department of Human Anatomy and Cell Science, University of Manitoba College of Medicine, Winnipeg, MB R3E 3P5, Canada.
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Khosravi S, Ahmadizad S, Yekaninejad M, Karami M, Djafarian K. The effect of beetroot juice supplementation on muscle performance during isokinetic knee extensions in male Taekwondo athletes. Sci Sports 2021. [DOI: 10.1016/j.scispo.2020.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Schranger H, Khosravi S, Fitzek H, Abbas Q. Elaborating the Iodine/Polyiodide Equilibrium Effects in Nanoporous Carbon-based Battery Electrode via Extreme Mass Asymmetry in Hybrid Cells. ChemElectroChem 2021; 8:3155-3160. [PMID: 34595089 PMCID: PMC8457216 DOI: 10.1002/celc.202100458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/09/2021] [Indexed: 11/11/2022]
Abstract
This article discusses the conversion of electrodeposited iodine to polyiodides within the nanopores of carbon electrodes that affect the performance of iodide electrolyte-based electrochemical cells. Here, carbon electrodes have been polarized in aqueous sodium iodide electrolyte to store charge in the form of solid iodine via highly reversible reaction (2I-⇌I2+2e-). The stored iodine within the pores interacts with free iodide ions present in the bulk electrolyte via comproportionation reactions leading to polyiodide (I3 - and I5 -) formations. By tuning the mass asymmetry of carbon electrodes in hybrid cells and using the in-situ Raman spectroscopy on positive battery electrode, we show the influence of iodine/polyiodides equilibrium shifts on the self-discharge and voltage rebounds during open circuit conditions. This study provides insights into the charging mechanisms of carbon electrodes for iodine-based hybrid supercapacitors and battery systems.
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Affiliation(s)
- H. Schranger
- Institute for Chemistry and Technology of MaterialsStremayrgasse 09Graz University of Technology8010GrazAustria
| | - S. Khosravi
- Institute for Chemistry and Technology of MaterialsStremayrgasse 09Graz University of Technology8010GrazAustria
| | - H. Fitzek
- Graz Centre for Electron MicroscopySteyrergasse 178010GrazAustria
| | - Q. Abbas
- Institute for Chemistry and Technology of MaterialsStremayrgasse 09Graz University of Technology8010GrazAustria
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Abshirini M, Siassi F, Koohdani F, Qorbani M, Khosravi S, Aslani Z, Pak N, Sotoudeh G. Higher intake of dietary n-3 PUFA and lower MUFA are associated with fewer menopausal symptoms. Climacteric 2019; 22:195-201. [PMID: 30628472 DOI: 10.1080/13697137.2018.1547700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This study aimed to investigate the association between dietary fat quality and menopausal symptoms. METHODS We carried out a cross-sectional study with 393 Iranian postmenopausal women. Dietary intakes and menopausal symptoms were assessed, using a validated food frequency questionnaire and a menopausal rating scale (MRS) questionnaire, respectively. Participants were divided into low and high total MRS and its domain scores. RESULTS Women in the highest quartiles of monounsaturated fatty acids (MUFA) had higher somatic symptoms compared with women in the lowest quartile (odds ratio [OR] 3.41; 95% confidence interval [CI] 1.17-9.95). Women in the highest quartiles of n-3 polyunsaturated fatty acids (PUFA) (OR 0.58; 95% CI 0.32-1.05), eicosapentaenoic acid (EPA) (OR 0.66; 95% CI 0.37-1.20), and n-3:n-6 PUFA ratio (OR 0.49; 95% CI 0.25-0.97) had lower somatic symptoms compared to the lowest quartiles. The OR for psychological symptoms decreased from the lowest to the highest quartiles of n-3 PUFA (OR 0.47; 95% CI 0.20-1.11) and n-3:n-6 PUFA ratio (OR 0.46; 95% CI 0.24-0.86). Higher intakes of EPA (OR 0.53; 95% CI 0.29-0.99) and docosahexaenoic acid (OR 0.51; 95% CI 0.27-0.95) were found to be related with fewer urogenital symptoms. CONCLUSION Consuming diets low in MUFA intake, but high in n-3 PUFA, and with a more favorable ratio of n-3:n-6 PUFA may be helpful for improving menopausal symptoms.
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Affiliation(s)
- M Abshirini
- a Department of Community Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran.,b Students' Scientific Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - F Siassi
- a Department of Community Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| | - F Koohdani
- c Department of Cellular, Molecular Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| | - M Qorbani
- d Non-communicable Diseases Research Center , Alborz University of Medical Sciences , Karaj, Iran
| | - S Khosravi
- e Department of Social Medicine, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Z Aslani
- a Department of Community Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran.,b Students' Scientific Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - N Pak
- f Shariati Hospital, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran.,g Children Hospital of Excellence, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - G Sotoudeh
- a Department of Community Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
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Eskandari E, Dahmardeh T, Safdari V, Khosravi S, Pahlevani E. HLA-G gene 14-bp deletion variant protects Iranian subjects against chronic hepatitis B infection. Int J Immunogenet 2017; 44:322-327. [PMID: 28929613 DOI: 10.1111/iji.12337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 07/02/2017] [Accepted: 08/06/2017] [Indexed: 01/19/2023]
Abstract
To investigate whether 14-bp Ins/Del polymorphism in HLA-G gene is associated with the risk of chronic hepatitis B (CHB) infection. This study was performed on a total of 396 individuals including 199 CHB patients and 197 healthy subjects from a south-east Iranian population. We genotyped 14-bp Ins/Del polymorphism in the HLA-G gene using polymerase chain reaction method. The results of our study revealed that the HLA-G 14-bp deletion polymorphism was associated with a reduced risk of CHB at both allele and genotypic levels. The 14-bp Del allele and Ins/Del genotype were more frequent in control group than in CHB patients (37% vs 28% for Del allele with OR = 0.68 and p-value = .015; 73% vs 52% for Ins/Del genotype with OR = 0.43 and p-value = .001) and both were protective factors against CHB. However, no difference was found in the distribution of HLA-G 14-bp genotypes among subjects with varied levels of HBV DNA or hepatic enzymes (p > .05). Our findings, for the first time, suggest that the HLA-G 14-bp Ins/Del polymorphism may be a marker for genetic susceptibility to CHB infection.
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Affiliation(s)
- E Eskandari
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - T Dahmardeh
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - V Safdari
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - S Khosravi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Zahedan, Iran
| | - E Pahlevani
- Infectious Diseases & Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Khosravi S, Nordqvist P, Khabbaz F, Öhman C, Bjurhager I, Johansson M. Wetting and film formation of wheat gluten dispersions applied to wood substrates as particle board adhesives. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.11.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Safaee Ardekani G, Jafarnejad SM, Khosravi S, Martinka M, Ho V, Li G. Disease progression and patient survival are significantly influenced by BRAF protein expression in primary melanoma. Br J Dermatol 2014; 169:320-8. [PMID: 23550516 DOI: 10.1111/bjd.12351] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND Mutation of BRAF is a prevalent event in melanoma. Despite much attention to the role of BRAF mutation in melanoma, the status of BRAF protein expression and its significance in melanoma progression are unknown. OBJECTIVES We investigated the BRAF expression level in different stages of melanocytic lesions and evaluated its correlation with clinicopathological features and patient survival. METHODS Using tissue microarray, BRAF expression and its correlation with patient outcome was evaluated in 49 naevi samples and 370 patients with melanoma. We also evaluated the correlation of BRAF protein expression and V600E mutation using direct sequencing. RESULTS Compared with naevi samples, BRAF expression was remarkably increased in primary melanomas and further increased in metastatic melanomas (P = 1·8 × 10(-11) ). High BRAF expression was significantly correlated with thicker tumours, ulceration and higher American Joint Committee on Cancer stages (P = 1·5 × 10(-7) , 1·5 × 10(-5) and 3·6 × 10(-13) , respectively). In cases of primary melanoma, patients with high BRAF expression had significantly worse overall (P = 0·009) and disease-specific 5-year survival (P = 0·007). While there was a trend for higher prevalence of BRAF V600E mutation in patients with high BRAF protein expression, no significant correlation was observed between protein expression and BRAF mutation. Furthermore, univariate Cox regression analysis confirmed high BRAF protein expression as a strong risk factor for poor patient survival in primary melanoma [hazard ratio (HR) 2·08 for overall survival; HR 2·39 for disease-specific survival]. CONCLUSIONS Our data demonstrate that BRAF protein expression is significantly increased during melanoma progression. In addition, we revealed a novel prognostic value for BRAF protein expression in primary melanoma as it is significantly correlated with poor patient survival.
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Affiliation(s)
- G Safaee Ardekani
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, BC, Canada.
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Abstract
BACKGROUND Safety of blood donor is an important issue for a recipient of blood so all blood donors are to screened for viral such as HBV, HCV, and HIV. Nevertheless, infections sometime occur by blood and its products. OBJECTIVE Because we haven't got any awareness about isolated Hbc Ab from a blood donor who presented of occults B hepatitis which can transmit infection to blood recipient, we decided to evaluate HbcAb in a blood donor in this province. MATERIALS AND METHODS This is a cross-sectional study on a blood donor in Sistan-Balutuestan province in southeast of Iran in 2010. All individuals referred for blood donation recruited to this. After consent demographic data was recorded from each case, 5 ml blood sample was drawn and centrifuged to separate out the serum and then HbsAb, HbcAb was assayed. Data analyzed by SPSS 16 and frequency, chi- square test, and Fisher exact test was used and if P > 0.05 it was accented as significant association. RESULT All individuals were men with age 55 10.5 years. The number of people who had free job was 149 (34.6%) and the number of people whose education level was diploma was 159 (36.9%). About 423 (98.1%) lived in urban areas. The mean weight of men was 76.6 13.7; about 259 (60.1%) men were married. A total of 22 (5.1%) had a positive smoking history. HBc Ab was positive in 87 (20.2%). Nearly all people had HBsAb titer more than 10 IU/L. CONCLUSION This study showed that some of the blood donors had isolated HbcAb positive therefore we recommend HbcAb screening for blood donation.
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Affiliation(s)
- E Sanei Moghaddam
- Iranian Blood Transfusion Organization-Research Center, Zahedan Regional Educational Blood Transfusion Center, Iran
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Khosravi S, Wong RPC, Ardekani GS, Zhang G, Martinka M, Ong CJ, Li G. Role of EIF5A2, a downstream target of Akt, in promoting melanoma cell invasion. Br J Cancer 2014; 110:399-408. [PMID: 24178756 PMCID: PMC3899752 DOI: 10.1038/bjc.2013.688] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 08/26/2013] [Accepted: 10/09/2013] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Cutaneous melanoma is a life-threatening skin cancer because of its poorly understood invasive nature and high metastatic potential. This study examines the importance of eukaryotic translation initiation factor 5A2 (EIF5A2) in melanoma pathogenesis. METHODS We examined EIF5A2 expression in 459 melanocytic lesions using tissue microarray. In addition, melanoma cell lines were subjected to invasion and cell proliferation assays, zymography, FACS and real-time PCR to investigate the role of EIF5A2 in cancer progression. RESULTS Positive EIF5A2 staining increased from dysplastic naevi to primary melanomas (PMs; P=0.001), and further increased in metastatic melanomas (P=0.044). Eukaryotic translation initiation factor 5A2 expression was correlated with melanoma thickness (P<0.001) and was inversely correlated with the 5-year survival of PM patients especially those with tumour ≤2 mm thick. Strikingly, none of the latter died within 5 years in EIF5A2-negative staining group. Cox regression analysis revealed that EIF5A2 is an independent prognostic marker. Further, we found that EIF5A2 is a novel downstream target of phosphorylated Akt. Both melanoma cell invasion and MMP-2 activity increased and decreased with EIF5A2 overexpression and knockdown, respectively. CONCLUSION We for the first time showed that EIF5A2, as a target of PI3K/Akt, promotes melanoma cell invasion and may serve as a promising prognostic marker and a potential therapeutic target for melanoma.
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Affiliation(s)
- S Khosravi
- Department of Dermatology and Skin Science, Research Pavilion, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - R P C Wong
- Department of Dermatology and Skin Science, Research Pavilion, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - G S Ardekani
- Department of Dermatology and Skin Science, Research Pavilion, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - G Zhang
- Department of Dermatology and Skin Science, Research Pavilion, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - M Martinka
- Department of Pathology, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - C J Ong
- Department of Surgery, Vancouver Prostate Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - G Li
- Department of Dermatology and Skin Science, Research Pavilion, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
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Salehi M, Alavian SM, Tabatabaei SV, Izadi S, Sanei Moghaddam E, Amini Kafi-abad S, Gharehbaghian A, Khosravi S, Abolghasemi H. Seroepidemiology of HBV infection in South-East of iran; a population based study. Iran Red Crescent Med J 2012; 14:283-8. [PMID: 22829987 PMCID: PMC3398635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 01/09/2012] [Indexed: 10/31/2022]
Abstract
BACKGROUND Hepatitis B virus (HBV) infection is a major risk factor of cirrhosis and hepatocellular carcinoma affecting billions of people globally. Since information on its prevalence in general population is mandatory for formulating effective policies, this population based serological survey was conducted in Sistan and Baluchistan, where no previous epidemiological data were available. METHODS Using random cluster sampling 3989 healthy subjects were selected from 9 districts of Sistan and Baluchistan Province in southeastern Iran. The subjects' age ranged from 6 to 65 years old. Serum samples were tested for HBcAb, HBsAg. Screening tests were carried out by the third generation of ELISA. Various risk factors were recorded and multivariate analysis was performed. RESULTS The prevalence of HBsAg and HBcAb in Sistan and Baluchistan was 3.38% (95% CI 2.85; 3.98) and 23.58% (95% CI 22.29; 24.93) respectively. We found 8 cases of positive anti-HDV antibody. Predictors of HBsAg or HBcAb in multivariate analysis were age, marital status and addiction. CONCLUSION The rate of HBV infection in Sistan and Baluchistan was higher than other parts of Iran. Approximately 25% of general population in this province had previous exposure to HBV and 3% were HBsAg carriers. Intrafamilial and addiction were major routes of HBV transmission in this province.
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Affiliation(s)
- M Salehi
- Research Center for Infectious Disease and Tropical Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - S M Alavian
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, Iran,,Correspondence: Seyed Moayed Alavian, MD, Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Ground floor of Baqiyatallah Hospital, Mollasadra Ave., Vanak Sq., P.O.Box 14155-3651, Tehran, Iran. Tel.: +98-21-88067114, Fax: +98-21-88067114, E-mail:
| | - S V Tabatabaei
- Westfälische Wilhelms-Universität Münster, St.-Marien-Hospital GmbH, Gastroenterologishe Klinik, Lünen, Germany
| | - Sh Izadi
- Zahedan University of Medical Sciences, School of Public Health, Zahedan, Iran
| | - E Sanei Moghaddam
- Iranian Blood Transfusion Organization Research Center, Zahedan, Iran
| | - S Amini Kafi-abad
- Iranian Blood Transfusion Organization Research Center, Tehran, Iran
| | - A Gharehbaghian
- Iranian Blood Transfusion Organization Research Center, Tehran, Iran
| | - S Khosravi
- Iranian Blood Transfusion Organization Research Center, Tehran, Iran
| | - H Abolghasemi
- Iranian Blood Transfusion Organization Research Center, Tehran, Iran
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Khosravi S, Jin-Oh Hahn, Dumont GA, Ansermino JM. A Monitor-Decoupled Pharmacodynamic Model of Propofol in Children Using State Entropy as Clinical Endpoint. IEEE Trans Biomed Eng 2012; 59:736-43. [DOI: 10.1109/tbme.2011.2179033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nosratabad R, Moghadam E, Arababadi M, Khosravi S, Hassanshah G. IgA Deficiency Frequency in Zahedan Blood Transfusion Services Donors. J of Medical Sciences 2008. [DOI: 10.3923/jms.2008.519.522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ferbus D, Khosravi S, Dumont J, Billard C. In vivo and in vitro induction of 2'-5' oligoadenylate synthetase by interferon-alpha in nodular non-Hodgkin's lymphoma and correlations with the clinical response. J BIOL REG HOMEOS AG 1990; 4:127-34. [PMID: 2096597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We investigated the correlations between the in vivo-in vitro induction of 2'-5' oligoadenylate synthetase (2-5A synthetase) by IFN-alpha in cells isolated from patients with low-grade nodular non-Hodgkin's lymphoma (NHL) and subsequent clinical responses of these patients to IFN-alpha therapy. Eleven patients were treated daily with 9 x 10(6) U of IFN-alpha 2a in a phase II trial. After an eight week treatment, four patients achieved complete remission, one a partial response, one a minor response, and five failed to respond. Basal levels of 2-5A synthetase in lymph node tumor B cells and peripheral blood mononuclear cells (PBMC) isolated before therapy differed from patient to patient and were significantly lower than in PBMC from healthy donors (P less than 0.03). In vivo single injections of 9 x 10(6) U IFN-alpha 2a induced the 2-5A synthetase in PBMC from all patients to various degrees without quantitative relation to the clinical responses. Injection of a tenfold lower dose resulted in effects of similar extent in most cases. In vitro, IFN-alpha 2a induced the 2-5A synthetase in lymph node tumor B cells isolated before therapy, and the degree of induction was significantly higher in patients who proved to respond to therapy than in patients who displayed no or minor responses (P less than 0.013). This indicates that, in nodular NHL, the 2-5A synthetase assay may have some predictive value for responsiveness to IFN-alpha therapy.
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Affiliation(s)
- D Ferbus
- INSERM U. 245, Centre INSERM St-Antoine, Paris, France
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