Team:UB Indonesia/backup
From 2014.igem.org
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<h2 class="font-thin"><font color="#fff">Background</font></h2> | <h2 class="font-thin"><font color="#fff">Background</font></h2> | ||
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<h2 class="font-thin"><font color="#fff">Overview</font></h2> | <h2 class="font-thin"><font color="#fff">Overview</font></h2> | ||
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<a href="#preventing" class="fancybox"><p><i class="icon icon-shield"></i></p></a> | <a href="#preventing" class="fancybox"><p><i class="icon icon-shield"></i></p></a> | ||
<div id="preventing" style="display:none;width:700px;"> | <div id="preventing" style="display:none;width:700px;"> | ||
- | < | + | <h3><center>“Prevent is Better than Cure”</center></h3> |
- | <p align="justify"></p> | + | <p align="justify">Indonesia is an agricultural country that most of their society works as farmer. One of commodity in Indonesia is tea plantation which is located in Malang (Brawijaya University takes place). Malang is resited at 440-667 (mdpl) altitude, one of the tourist destinations in East Java because of the potential of natural and climatic owned. Malang climate conditions during 2008 temperatures recorded ranging from 22.7 ° C to 25.1 ° C. While the maximum temperature reached 32.7 ° C and minimum temperature of 18.4 ° C. The average air humidity range 79% - 86%. With a maximum moisture content of 99% and a minimum at 40%. These conditions favor the development of the tea plant (Camellia sinensis). <br><br> |
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+ | Tea extract contain EGCG used as the most effective antioxidant to against cervical cancer. But, levels of EGCG (Epigallocathecin gallate) in tea is very slightly. So, we will increase the level of this EGCG compound using siRNA to knockdown gene non-EGCG with expectation it will produce high yield of antioxidant. The applications are for supplement or feminine hygiene.<br><br> | ||
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+ | Tea plant (Camelia sinensis) has catechin compounds that contains antioxidants. Catechin family that most effective used as antioxidant is Epigallocathecin gallate (EGCG). Based on research in vitro or in silico, EGCG is able to inhibit the proliferation of cancer cells because stop over-expression between L1 HPV 16- EGFR (Epithel Growth Factor Receptor) bond but there are few of EGCG content in tea plant. Based on these problems, we would to over- expression EGCG by knockdown non-compound EGCG gene, so hopefully the content of EGCG on tea are more prominent. We design siRNA sequence from LAR gene (to inhibit non-EGCG compound) using bioinformatics tool and use P97 promoter to initiate expression in mammalian cell (using HeLa cell). That part will be insert into the psB1C3 linear backbone. To checking performance of this part, we insert sequence target of siRNA into the plasmid Bba_E0240 and get the promoter CMV from Bba_K747096 part. We also prepare for positive control and negative control for this experiment. Positive control part containing siRNA for GFP, insert into Bba_K747096 part that contain CMV promoter, and negative control containing CMV promoter and insert to the Bba_E0240 part containing GFP. Each part will be growth in HeLa cell culture and observed the succeding by fluorescent microscope. | ||
+ | </p> | ||
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<h2 class="font-thin"><font color="#fff">Preventing</font></h2> | <h2 class="font-thin"><font color="#fff">Preventing</font></h2> | ||
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<a href="#screening" class="fancybox"><p><i class="icon icon-stethoscope"></i></p></a> | <a href="#screening" class="fancybox"><p><i class="icon icon-stethoscope"></i></p></a> | ||
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- | <h2><center> | + | <h2><center>“Cercival Cancer Screening Kit”</center></h2> |
- | <p align="justify"></p> | + | <p align="justify"> |
+ | <b>1. Background</b><br> | ||
+ | Cervical cancer is one of the most common cancers in womenworldwide,with an estimated global incidence of 470,000 newcases and approximately 233,000 deaths per year. Then, we try to make an idea to build a new prototype for early detection to cervical cancer, especially caused by HPV 18 and HPV 16. From the previous results of the two teams, Calgary Team 2013 and Freiburg Team 2012, we build a new prototype with some combination from those teams. We learn about the prototype sensor from Calgary Team 2012 that consist of detector, linker, and reporter that combined into one small test pack. Then, to make the detector, we learn from Freiburg Team 2012 to constructing a new specific TALEs that can bind to our target sequences and we called it TALE 1 and TALE 2. <br> | ||
+ | TALEs or Transcription Activator-Like Effectors comes from natural bacterial effector proteins used by Xanthomonas sp. to modulate gene transcription in host plants to facilitate bacterial colonization (Boch J and Bogdanove, 2010).The central region of theprotein contains tandem repeats of 34 amino acids sequences (termed monomers) that arerequired for DNA recognition and binding (Kay, 2009). Here is the natural structure of TALE from Xanthomonas sp. :</p><br> | ||
+ | <center><img src="" width="" height=""><br> | ||
+ | Figure 1. Structure of TALEs derived from Xanthomonas sp. (Sanjana et al, 2013)</center><br><br> | ||
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+ | <b>2. What did We Do ?</b><br> | ||
+ | As explained before in the Background, we try to make a prototype based on the concept of Calgary Team 2013(https://2013.igem.org/Team:Calgary). So we construct a new TALEs that can bind with our target sequences, especially in HPV 18 and HPV 16. For building the detector, we received help from Freiburg Team 2012 (https://2012.igem.org/Team:Freiburg/Project/Overview)to construct two new TALEs. First, we search the target sequences with the alignment of whole genome of HPV 18 and HPV 16 via NCBI and MEGA5. We search two target sequences in left side and right side. Here are some works that we’ve done:</p><br> | ||
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<h2 class="font-thin"><font color="#fff">Screening</font></h2> | <h2 class="font-thin"><font color="#fff">Screening</font></h2> | ||
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<h2 class="font-thin"><font color="#fff">Therapy</font></h2> | <h2 class="font-thin"><font color="#fff">Therapy</font></h2> | ||
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Revision as of 07:23, 16 October 2014