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Editorial Board Abdul Khaliq Naveed National University of Science & Technology, Pakistan Amara Naksathit Mahidol University, Thailand Anne Brown Canadian Center of Science and Education, Canada Babu Subramanian Kongunadu Arts and Science College, India Billy Sinclair University of Cumbria, UK Da Jia UT Southwestern, USA Eric Albrecht Kennesaw State University, USA Florent Engelmann Institut de Recherche pour le Développement, France Fuqiang Li Cedars-Sinai Medical Center, USA Ignacy Kitowski Maria Curie-Sklodowska University, Poland Mark Andrew Skidmore The University of Liverpool, UK Michael L. Gleason Georgia College & State University, USA Mike Gormally National University of Ireland, UK Mike Watson University of Southern Queensland, Australia Muhammad Ishtiaq University of Azad Jammu & Kashmir, Pakistan Naowarat Cheeptham Thompson Rivers University, Canada Nikolas Zagris University of Patras, Greece Olga Kukal Queen’s University, Canada Olga Pantos University of Queensland, Australia Paramita Basu Indian Institute of Technology Kanpur, India Patrick Marcel Schaeffer James Cook University, Australia Peer Schenk The University of Queensland, Australia Praveen Rao Juvvadi Duke University Medical Center, USA Risto Penttinen University of Turku, Finland S Craig Roberts University of Liverpool, UK Salil Kumar Bose Nanyang Technological University, Singapore Sathishkumar Ramalingam Bharathiar University, India Seiji Shibasaki Hyogo University of Health Sciences, Japan Shree R. Singh National Cancer Institute, USA Stuart Craig Smith Deakin University, Australia Suchada Chanprateep Chulalongkorn University, Thailand Zaini Mohd Zain University Technology MARA, Malaysia International Journal of Biology January, 2010 Contents Induction of Prdx1 and Prdx6 in Liver Cells by Serum and TPA 3 Fenwick Gardiner, Pryce Gaynor & Shelley A. Phelan Localization of Guanylate Cyclase Receptor, Inositol Trisphosphate Receptor, and Calmodulin in Boar 13 Spermatozoa Ayele Gugssa, Ava Williams, Rakeb Tilahun, William Eckberg, Winston Anderson, Balwant Ahluwalia, Lalita Kaul & Diana Broomfield Population Genetics of Drosophila ananassae: Evidence for Population Sub-Structuring at the Level of 19 Inversion Polymorphism in Indian Natural Populations Pranveer Singh & Bashisth N. Singh Does an Actomyosin System Supplement the Axoneme in Mammalian Sperm 29 Terry Perot, Ayele Gugssa, William Eckberg, Balwant Ahluwalia, Baccio Baccetti & Winston Anderson Environmental Estrogens Stimulate Gene Transcription in the Prolactin Promoter 35 Winnifred Bryant, Sarah Korb, Anthonia Arikawe & Fong Lee Comparative Growth Performance of Mixed-Sex and Monosex Nile Tilapia Population in Freshwater Cage 44 Culture System under Indian Perspective Suman Bhusan Chakraborty & Samir Banerjee Breeding Ground Profile of Food Fish Species in Damodar River System 51 Lina Sarkar & Samir Banerjee Characterization of Gene Encoding Type-I Gonadotropin Releasing Hormone Receptor in Goat (Capra 62 hircus) Atul Upreti, Vimalkumar Mappilettu Balan, Anjani Kumar Srivastava & Kamal Kumar Saxena Characterization of Human Adipose Tissue Derived Hematopoietic Stem Cell, Mesenchymal Stem Cell 71 and Side Population Cells Dhanasekaran Marappagoundar, Indumathi Somasundaram, Rajkumar Sankaran, Pachaiyappan Viswanathan, Sangeeth Kumar Gnanasekaran, Vidya Vipparala, Sudarsanam Dorairaj & Baskaran Mayakesavan Identification of Phenol-Degrading Nocardia Sp. Strain C-14-1 and Characterization of Its Ring-Cleavage 79 2,3-Dioxygenase Haijuan Ma, Guangming Li, Ping Fang, Yalei Zhang & Deqiang Xu Culture and Identification of Candida Albicans from Vaginal Ulcer and Separation of Enolase on 84 SDS-PAGE P. Saravana Bhavan, R. Rajkumar, S. Radhakrishnan, C. Seenivasan & S. Kannan Cytoplasmic and Combining Ability Effects on Agro-Morphological Characters in Intra and Inter Crosses 94 of Pima and Upland Cottons (G. H irsu tum and G. Barbadense) Mohammad Reza Zangi, Nadali Babaeian Jelodar, Seid Kamal Kazemitabar & Mosarreza Vafaei-tabar DNA Damage in Workers Occupationally Exposed to Lead, Using Comet Assay 103 P.Manikantan, V.Balachandar & K. Sasikala 1 Vol. 2, No. 1 International Journal of Biology Contents In Silicon Cloning and Analysis of a LACS Gene from Glycine Max (L.) 111 Lili Yu, Xiaoli Tan, Weiwei Yuan & Fuge Zhu Spectrum of ATP7B Gene Mutations in Pakistani Wilson Disease Patients: A Novel Mutation Is Associated 117 with Severe Hepatic and Neurological Complication Abdul Khaliq Naveed, Asifa Majeed & Sumreena Mansoor Study Progress of Intergeneric Hybridization between Chicken and Quail 123 Xingming Li, Du Liang, Jincheng Zhang & Herong Liao A Rapid and Simple Method for Brassica Napus Floral-Dip Transformation and Selection of Transgenic 127 Plantlets Juan Li, Xiaoli Tan, Fuge Zhu & Jingjing Guo An Investigation of the Prevalence of Upper Limb Neuropathies in Different Types of College Musicians by 132 Use of Neurometrix Device Saunders Jones Jr MD & Christi Hernandez Gas Exchange, Chlorophyll and Growth Responses of Betula Platyphylla Seedlings to Elevated CO2 and 143 Nitrogen Xizhu Zhao, Zijun Mao & Juan Xu Effects of Sucrose on Germination and Seedling Development of Brassica Napus 150 Feng Xu, Xiaoli Tan & Zheng Wang Trace and Toxic Elements Accumulation in Food Chain Representatives at Livingston Island (Antarctica) 155 R. Metcheva, L.Yurukova, V. Bezrukov, M. Beltcheva, Y. Yankov & K. Dimitrov Current Situation and Progress in Treatment of Ascites by Reinfusion 162 Kunpeng Tian & Yajing Li A Study on Laboratory Rearing of Lady Bird Beetle (Coccinella Septempunctata) to Observe Its Fecundity 165 and Longevity on Natural and Artificial Diets Muhammad Ashraf, Muhammad Ishtiaq, Muhammad Asif, Muhammad Adrees, Muhammad Nauman Ayub, Tariq Mehmood & Muhammad Naeem Awan Healthy Culture of Aquatic Animals and Development of Green Fishery Medicine 174 Guangjun Wang, Xidong Mou, Guangping Yin & Qingshen Liu Combining Ability Estimates for Yield and Fibre Quality Traits in Line X Tester Crosses of Upland Cotton, 179 (Gossypium hirsutum) Kaliyaperumal Ashokkumar, R. Ravikesavan & Kirubakaran Silvas Jebakumar Prince Preparation and Swelling Behavior of Poly(N-isopropylacrylamide-co-acrylic Acid Derivatived 184 L-phenylalanine) Hydrogels Lin Jiang, Jiaojiao Chen & Li Chen 2 International Journal of Biology January, 2010 Induction of Prdx1 and Prdx6 in Liver Cells by Serum and TPA Fenwick Gardiner Department of Biology, Fairfield University, Fairfield, CT 06430, USA Pryce Gaynor Department of Biology, Fairfield University, Fairfield, CT 06430, USA St. Georges University School of Medicine Grenada, West Indies Shelley A. Phelan (Corresponding Author) Department of Biology, Fairfield University Fairfield, CT 06430, USA Tel: 203-254-4000 x3120 E-mail: [email protected] Abstract Peroxiredoxins are thiol-specific antioxidants that protect cells from oxidative damage and have proliferative and anti-apoptotic activity. We investigated the effect of serum and phorbol ester treatment on expression of Prdx1 and Prdx6 in H2.35 cells, and the possible role of Sp1 on Prdx6 induction. Serum stimulation induced a 30% increase in Prdx1 mRNA and a three-fold increase in Prdx6 mRNA. We showed a similar effect of phorbol ester treatment, which led to a 30% increase in Prdx1 mRNA, and over a two-fold increase in Prdx6 expression. Analysis of the Prdx6 proximal promoter sequence revealed four consensus Sp1 sites. Inhibition of Sp1 with mithramycin A blocked Prdx6 induction by TPA and inhibited the serum-induced transcriptional activity of the Prdx6 proximal promoter. These data suggest an important role for Prdx6 in the cellular response to serum and TPA, and implicate Sp1 as a possible mediator of Prdx6 regulation. Keywords: Peroxiredoxin, Prdx1, Prdx6, H2.35, Antioxidant, TPA, Serum 1. Introduction Reactive oxygen species (ROS) are unstable free radical derivates of oxygen formed as byproducts of many biochemical processes in the cell. ROS serve critical functions for many types of cells (Halliwell and Gutteridge, 1999), and recently have been implicated as key regulators of signal transduction (Immenschuh and Baumgart-Vogt, 2005). However, when concentrations of ROS become too high, macromolecules can become oxidized, causing detrimental cellular effects such as cell death (Halliwell and Gutteridge, 1999). These consequences have pathophysiological relevance, as oxidative stress is linked to the development of a number of diseases including cancer and neurodegenerative disease (Cross et al., 1987; Sun and Chen, 1998; Gius and Spitz, 2006). Peroxiredoxin proteins are thiol-specific antioxidant enzymes that reduce various cellular peroxide substrates using cysteine-containing active sites (Hofmann et al., 2002; Rhee et al., 2005). Mammals possess six members of the peroxiredoxin gene family, and the encoded proteins are classified into three groupings based on the number and position of active site cysteines: the 2-Cys type (Prdx1-4), the atypical 2-Cys Prdx (Prdx5), and the 1-cys member (Prdx6). In addition to their structural differences, these proteins vary in peroxide substrate specificity, cellular localization, tissue expression, and additional enzymatic activities (Hofmann et al., 2002; Rhee et al., 2005). Based on their functions, 3 Vol. 2, No. 1 International Journal of Biology peroxiredoxins can protect cells from ROS-induced cell damage and apoptosis, and regulate redox sensitive cell signaling involved in processes such as cell proliferation, differentiation, and transformation (Hofmann et al., 2002;