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Differential gene expression between squamous cell carcinoma of esophageus and its normal epithelium; altered pattern of mal,akrlc2, and rablla expression

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World Journal of Gastroenterology 2004年第12期10卷 1716-1721页

作者： Sakineh Kazemi-Noureini Sergio Colonna-Romano Abed-ali ziaee Mohammad-ali Malboobi Mansour Yazdanbod Parviz Setayeshgar Bruno Maresca Institute of Biochemistry and Biophysics University of TehranTehranIran PO Box:13145-1384 International Institute of Genetics and Biophysics National Research CouncilVia Marconi 1280125 NaplesItaly National Research Center for Genetic Engineering and Biotechnology(NRCGEB) TehranIran Shanati Hospital Department of SurgeryMedical University of TehranTehranIran Pathology department Madaen HospitalTehranIran and University of Salerno School of PharmacyDept.Pharmaceutical SciencesFiscianoSalernoItaly

AIM: To identify the altered gene expression patterns in squamous cell carcinoma of esophagus (ESCC) in relation to adjacent normal esophageal epithelium. METHODS: Total RNA was extracted using SV total RNA isolation kit from snap frozen tissues of ESCC samples and normal esophageal epithelium far from the tumor. Radio-labeled cDNA were synthesized from equal quantities of total RNAs of tumor and normal tissues using combinations of 24 arbitrary 13-mer primers and three different anchoring oligo-dT primers and separated on sequencing gels. cDNA with considerable different amounts of signals in tumor and normal tissue were reamplified and cloned. Using southern blot, the clones of each band were controlled for false positive results caused by probable heterogeneity of cDNA population with the same size. Clones that confirmed differential expression by slot blot selected for sequencing and northern analysis. Corresponding full-length gene sequences was predicted using human genome project data, related transcripts were translated and used for various protein/motif searches to speculate their probable functions. RESULTS: The 97 genes showed different levels of cDNA in tumor and normal tissues of esophagus. The expression of mal gene was remarkably down. regulated in all 10 surveyed tumor tissues. Akrlc2, a member of the aldoketo reductase 1C family, which is involved in metabolism of sex hormones and xenobiotics, was up-regulated in 8 out of 10 inspected ESCC samples. Rablla, RPL7, and RPL28 showed moderate levels of differential expression. Many other cDNAs remained to further studies. CONCLUSION: The mal gene which is switched-off in all ESCC samples can be considered as a tumor suppressor gene that more studies in its regulation may lead to valuable explanations in ESCC development. Akrlc2 which is upregulated in ESCC probably plays an important role in tumor development of esophagus and may be proposed as a potential molecular target in ESCC treatments. Differentia

关键词：基因表达鳞状细胞癌上皮细胞家兔 ESCC 食管

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How to Approach Real Mathematical Modeling in Surge Capacity: Clinical Review

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Open Journal of Emergency Medicine 2017年第2期5卷 85-91页

作者： ali ziaee Shervin Assari Helia Ghanean A. Jalali Saleem Abboud Youssef Emergency Department Saudi German Hospital Dubai UAE University of Michigan Michigan USA Research Associate UHN Toronto Canada Karolinska Institute Sweden Emergency Specialist Saudi German Hospital Dubai UAE

Objectives: Science of surge is one of most important topics in the realm of disaster preparedness. Since 2006, after Academic Emergency Medicine (AEM) Consensus Conference, few articles with quantitative data address decision making in surge capacity. The aim of this article is looking forward to the facts about mathematical modeling and proposes real modeling in decision making to have better outcome. Methods: Literature Research was performed on database for the last ten years (2007-2017). Articles with mathematical modeling were separated and classified based on the usage of them in the field. Results: All current mathematical studies compared based on pre-hospital and hospital setting and flexibility in change of global level of care in time. Integrated model of sigmoid curve and HASC (Hospital Acute Care Surge Capacity) with name B-H integrated modeling in two-hour interval proposed. Conclusion: This study shows dynamic process of disaster planning based on outcome and reality. The proposed model makes surge capacity more predictable and adjustable.

关键词： Surge Capacity Disaster Mathematical and Modeling

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Identification of squamous cell carcinoma associated proteins by proteomics and loss of beta tropomyosin expression in esophageal cancer

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World Journal of Gastroenterology 2006年第44期12卷 7104-7112页

作者： Ferdous Rastgar Jazii Zahra Najafi Reza Malekzadeh Thomas P Conrads Abed ali ziaee Christian Abnet Mansour Yazdznbod ali Asghar Karkhane Ghasem H Salekdeh National Institute of Genetic Engineering and Biotechnology POBOX: 14155 6343 Tehran Iran Digestive Disease Research Center Shariati Hospital Medical University Tehran Iran Laboratory of Proteomics and Analytical Technologies SAIC -Frederick B Frederick MD 21702 United States Institute of Biochemistry and Biophysics Tehran University Tehran Iran NCI Center for Cancer Research CancerPrevention Studies Branch Bethesda United States Department of surgery Shariati Hospital Medical University Tehran Iran Agricultural Biotechnology ResearchInstitute of Iran Karaj Iran

AIM: To assess the proteome of normal versus tumor tissue in squamous cell carcinoma of the esophagus (SCCE) in Iranian patients and compare our results with former reports by using proteomics. METHODS: Protein was extracted from normal and tumor tissues. Two dimensional electrophoresis was carried out and spots with differential expression were identified with mass spectrometry. RNA extraction and RT-PCR along with immunodetection were performed. RESULTS: Fourteen proteins were found whose expression levels differed in tumor compared to normal tissues. Mass spectrometric analysis resulted in the identification of β-tropomyosin (TMβ), myosin light chain 2 (and its isoform), myosin regulatory light chain 2, peroxyredoxin 2, annexinⅠand an unknown polypeptide as the down regulated polypeptides in tumor tissue. Heat shock protein 70 (HSP70), TPM4-ALK fusion oncoprotein 2, myosin light polypeptide 6, keratinⅠ, GH16431p and calreticulin were the up-regulated polypeptides found in tumor tissue. Several of these proteins, such as TMβ,HSP70, annexinⅠ, calreticulin, TPM4-ALK and isoforms of myosins, have been well recognized in tumorigenesis of esophageal or other types of cancers. CONCLUSION: Our study not only supports the involve- ment of some of the formerly reported proteins in SCCE but also introduces additional proteins found to be lost in SCCE, including TMβ.

关键词：食道鳞片细胞空间电泳多肽

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