Difference between revisions of "Team:HZAU-China/Safety"

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             z-index: 1;
 
             z-index: 1;
 
             background-color: #EEEEEE;
 
             background-color: #EEEEEE;
−
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−
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             box-shadow: 0 5px 15px #CCCCCC;
 
             box-shadow: 0 5px 15px #CCCCCC;
 
             display: none;
 
             display: none;
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         }
 
         }
  
−
         .daohang a:hover span{
+
         .daohang a:hover span {
−
             transform: rotateY(180deg);          
+
             transform: rotateY(180deg);
−
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+
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−
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+
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−
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+
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             -ms-transform: rotateY(180deg);
−
             transition: all 0.5s ease-in-out;          
+
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−
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+
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−
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+
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         }
 
         }
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         }
 
         }
  
−
         @media screen and (max-width: 880px) {
+
         @media screen and (max-width: 900px) {
  
 
             .daohang .caidan {
 
             .daohang .caidan {
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             .daohang .longName .item:before {
 
             .daohang .longName .item:before {
−
            width: 150px;
+
                width: 150px;
−
            left: 20px;
+
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             }
  
 
             .daohang .longName .item:hover:after {
 
             .daohang .longName .item:hover:after {
−
            width: 150px;
+
                width: 150px;
−
            left: 20px;
+
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−
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+
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             width: 80%;
 
             width: 80%;
 
             /* height: auto; */
 
             /* height: auto; */
−
             margin: 20px 20px 0 0;
+
             margin: 20px 40px 0 0;
 
             /* right: 2%; */
 
             /* right: 2%; */
 
             /* top: 90px; */
 
             /* top: 90px; */
−
             padding: 20px 3%;
+
             padding: 50px 3%;
 
             float: right;
 
             float: right;
 
             /* position: relative; */
 
             /* position: relative; */
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         .cebian {
 
         .cebian {
−
             width: 15%;
+
             width: 200px;
 
             /* height: 80vh; */
 
             /* height: 80vh; */
 
             float: left;
 
             float: left;
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             /* border:2px solid black */
 
             /* border:2px solid black */
 
             /* background-color: #323643 */
 
             /* background-color: #323643 */
 +
        }
 +
 +
        .zhengwen p{
 +
            text-align: justify !important;
 +
            font-family:  'Times New Roman',Helvetica,'Open Sans',  Arial, sans-serif !important;
 +
            color: #3B3B3B;
 +
            font-size: 26px !important;
 +
            padding-right: 20px;
 
         }
 
         }
  
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         .h1 {
 
         .h1 {
−
            height: 100px;
+
             line-height: 55px;
−
             line-height: 100px;
+
 
             font-weight: bold;
 
             font-weight: bold;
 +
            height:auto;
 
             font-family: 'Product Sans', sans-serif;
 
             font-family: 'Product Sans', sans-serif;
−
             font-size: 50px;
+
             font-size: 40px;
−
             color: black;
+
             color: #3B3B3B;
−
             border-bottom: 3px solid black;
+
             border-bottom: 2px solid #676767;
−
             /* margin: 0 2.4%; */
+
            margin-bottom: 20px;
 +
        }
 +
 
 +
        .h2 {
 +
            height: 40px;
 +
            line-height: 40px;
 +
            font-weight: bold;
 +
            height:auto;
 +
            /* font-weight: bold; */
 +
            font-family: 'Product Sans', sans-serif;
 +
            font-size: 30px;
 +
            color: #484848;
 +
             /* margin-bottom: 20px; */
 +
        }
 +
 
 +
        .h3 {
 +
            height: 30px;
 +
            line-height: 30px;
 +
            font-weight: bold;
 +
            height:auto;
 +
            /* font-weight: bold; */
 +
            font-family: 'Product Sans', sans-serif;
 +
            font-size: 24px;
 +
            color: #484848;
 +
            /* margin-bottom: 20px; */
 +
        }
 +
       
 +
        table {
 +
            color: #3B3B3B;
 
         }
 
         }
  
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         #float02 {}
 
         #float02 {}
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         div.floatCtro {
 
         div.floatCtro {
 
             width: 100%;
 
             width: 100%;
−
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+
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             margin: 0;
 
             margin: 0;
 
             position: relative;
 
             position: relative;
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             display: block;
 
             display: block;
 
             width: 100%;
 
             width: 100%;
−
             height: 40px;
+
             /* height: auto; */
 +
            /* text-align: left !important; */
 
             color: #ffffff !important;
 
             color: #ffffff !important;
 
             font-size: 16px;
 
             font-size: 16px;
 +
            padding:0;
 
             background-color: #323643;
 
             background-color: #323643;
 
             border-bottom: 1px solid black;
 
             border-bottom: 1px solid black;
−
             /* border-radius: 5px; */
+
             padding:0 3%;
 
             text-decoration: none !important;
 
             text-decoration: none !important;
 
         }
 
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         div.floatCtro .daohanger {
 
         div.floatCtro .daohanger {
 
             width: 100%;
 
             width: 100%;
−
             text-align: justify !important;
+
             text-align: left !important;
−
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+
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−
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+
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             font-family: Arial;
 
             font-family: Arial;
−
             font-size: 14px;
+
             font-size: 14px !important;
 
             color: #676767;
 
             color: #676767;
 
             margin: 0;
 
             margin: 0;
−
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+
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             cursor: pointer;
 
             cursor: pointer;
 
             background: #fff;
 
             background: #fff;
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             width: 100%;
 
             width: 100%;
 
             height: 40px;
 
             height: 40px;
 +
            padding:10px 8%;
 
             /* margin: 10px 0 0 0; */
 
             /* margin: 10px 0 0 0; */
 
             background: #FFF;
 
             background: #FFF;
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         div.floatCtro a span {
 
         div.floatCtro a span {
 
             display: block;
 
             display: block;
−
             height: 44px;
+
             height: auto;
−
             line-height: 44px;
+
            text-align: left !important;
 +
             line-height: 18px;
 
             font-family: Arial;
 
             font-family: Arial;
 
             font-size: 16px;
 
             font-size: 16px;
−
            padding-left: 8%;
 
 
         }
 
         }
  
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         .biaoti {
 
         .biaoti {
−
             line-height: 40px;
+
             display: inline-block;
−
             width: 50%;
+
            margin: 8px 0;
−
             margin-left: 6%;
+
             /* width: 50%; */
−
             text-align: center;
+
             /* margin-left: 6%; */
 +
             /* text-align: center; */
 
             text-decoration: none !important;
 
             text-decoration: none !important;
 
         }
 
         }
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         @media screen and (max-width: 1200px) {             
 
         @media screen and (max-width: 1200px) {             
 
            
 
            
 +
            .cebian {
 +
            width: 15%;
 +
            }
 +
 +
            .zhengwen {
 +
            margin: 20px 20px 0 0;
 +
 
             .daohangyi {
 
             .daohangyi {
−
                 font-size: 12px;
+
                 font-size: 14px;
 
             }
 
             }
 +
            .daohangyi img {
 +
                display: none;
 +
            } 
 
         }
 
         }
  
−
         @media screen and (max-width: 880px) {
+
         @media screen and (max-width: 900px) {
  
 
             .daohangyi img {
 
             .daohangyi img {
 
                 display: none;
 
                 display: none;
 
             }   
 
             }   
−
 
+
           
 
             .laoshi img {
 
             .laoshi img {
 
                 height: 30vh;
 
                 height: 30vh;
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                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Improve">Improve</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Improve">Improve</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/InterLab">InterLab</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/InterLab">InterLab</a>
 +
                <a class="item" href="https://2018.igem.org/Team:HZAU-China/Notebook">Notebook</a>
 +
 
             </li>
 
             </li>
 
             <li class="hiLight shortName">
 
             <li class="hiLight shortName">
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                     <span class="xjtPic"></span>
 
                     <span class="xjtPic"></span>
 
                 </a>
 
                 </a>
−
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Safety">Safty</a>
+
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Safety">Safety</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Human_Practices">Human Practices</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Human_Practices">Human Practices</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Public_Engagement">Public Engagement</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Public_Engagement">Public Engagement</a>
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                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Collaborations">Collaborations</a>
 
                 <a class="item" href="https://2018.igem.org/Team:HZAU-China/Collaborations">Collaborations</a>
 
             </li>
 
             </li>
−
             <li class="shortName">
+
             <li class="hiLight shortName">
−
                 <a class="nav_head" href="https://2018.igem.org/Team:HZAU-China/Parts">
+
                 <a class="nav_head" href="#">
 
                     <span>Parts</span>
 
                     <span>Parts</span>
 +
                    <span class="xjtPic"></span>
 
                 </a>
 
                 </a>
 +
                <a class="item" href="https://2018.igem.org/Team:HZAU-China/Basic_Part">Basic</a>
 +
                <a class="item" href="https://2018.igem.org/Team:HZAU-China/Composite_Part">Composite</a>
 
             </li>
 
             </li>
 
         </ul>
 
         </ul>
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         <!-- 正文 -->
 
         <!-- 正文 -->
 
         <div class="zhengwen">
 
         <div class="zhengwen">
−
            <img class="daimg" src="https://static.igem.org/mediawiki/2018/7/70/T--HZAU-China--hezhao1.png" alt="">
 
 
             <div id="float01" class="cur">
 
             <div id="float01" class="cur">
−
                 <div class="h1">biaotiyi</div>
+
                 <div class="h1">Introduction</div>
 +
                <!-- <div class="h2">Introduction</div> -->
 +
                <p>This year, we have done a lot of work in order to meet the requirement of biosafety. After
 +
                    collecting
 +
                    opinions from experts and the public, we learned that the general concerns are about: How is it
 +
                    safe to
 +
                    apply bacteriotherapy against cancer without causing unexpected damage or infection? We took these
 +
                    concerns seriously and have found some practical solutions.</p>
 +
                <div class="h2">Safety Form</div>
 +
                <p>Salmonella Typhimuriu is not entirely harmless. In fact, the strain sl1344 which we chose for our
 +
                    project may as well cause slight enteritis. However, we chose it base on the fact that it is a
 +
                    well-learned intracellular pathogen with a lot of engineering experience we can refer to, which is
 +
                    suitable for delivering GSDMD into cells. So we finished the Check in Form and the Safety and
 +
                    Security
 +
                    Form carefully to make sure the information is clear and intact as well as we can.</p>
 +
                <div class="h2">Salmonella Gene Knock out</div>
 +
                <p>Gene sifA is a vital gene located in Salmonella pathogenicity island, which increases the stability
 +
                    of
 +
                    Salmonella-Containing Vacuole (SCV) after infection. We knocked out the sifA gene from Salmonella
 +
                    Typhimurium str. SL1344 genome by conjugation transfer. The aim is to reduce the toxicity of
 +
                    Salmonella
 +
                    itself, then allow the GSDMD protein, which is able to rupture the phospholipid bilayer structure,
 +
                    to
 +
                    release into the cytoplasm of a tumor cell.
 +
                    After gene knock out, the strain can be easily controlled by human macrophage. See also Design and
 +
                    Result pages for details.</p>
 +
                <div class="h2">Enhanced Targeting Specificity</div>
 +
                <p>Salmonella has natural taxis towards tumor microenvironment. Base on the results of public survey
 +
                    and
 +
                    some opinions from experts, we decided to enhance the targeting specificity to a new level. We
 +
                    designed
 +
                    a new circuit to introduce OmpA-RGD protein as a surface recognition molecule, where RGD is a
 +
                    well-studied tumor homing tripeptide that binds specifically to alpha v beta 3 (αvβ3) integrin, a
 +
                    protein widely distributed on the surface of tumor cells. We successfully displayed RGD on the
 +
                    surface
 +
                    of a bacteria strain, also proved its targeting ability towards αvβ3. See also <a href="https://2018.igem.org/Team:HZAU-China/Design">Design</a>
 +
                    and <a href="https://2018.igem.org/Team:HZAU-China/Results">Results</a> pages.</p>
  
 
             </div>
 
             </div>
 
             <div id="float02">
 
             <div id="float02">
−
                 <div class="h1">biaotier</div>
+
                 <div class="h1">Lab Safety</div>
 +
                <div class="h2">General Safety Matters:</div>
 +
                <p>In our lab there is a safety training for everyone which covered following aspects:</p>
 +
                <p>1. Personal peripheral wear: Lab coat and gloves must be worn all the time during work. Personnel
 +
                    must
 +
                    wash their hands after experiments, or before they leave the laboratory working areas. Open-toed
 +
                    footwear must not be worn in laboratories. Eating, drinking, smoking, applying cosmetics, handling
 +
                    contact lenses and sleeping is prohibited in the laboratory working areas.</p>
 +
                <p>2. Chemical safety: We printed “Dos and don’ts when using hazardous chemicals” and posted them on
 +
                    marked place. Students are trained to use dry powder extinguishers and carbon dioxide fire
 +
                    extinguishers in our lab.</p>
 +
                <p>3. GMO safety: No biological materials are allowed to be brought out of our lab. Strains must be put
 +
                    into death before dumping.</p>
 +
                <p>4. Study of guidelines: We listed some biosafety websites used for team member education:<br><br>
  
−
            </div>
+
                    Govern biosafety in research laboratories:<br>
−
            <div id="float03">
+
                    <a href="http://english.biosafety.gov.cn/">http://english.biosafety.gov.cn/</a><br><br>
−
                 <div class="h1">biaotisan</div>
+
 
−
                  
+
                    Biosafety guidelines of our institution:<br>
 +
                    <a href="http://swx.hzau.edu.cn/">http://swx.hzau.edu.cn/</a> <br><br>
 +
 
 +
                    Regulations that govern biosafety in research laboratories:<br>
 +
                    <a href="http://english.biosafety.gov.cn/">http://english.biosafety.gov.cn/</a><br><br></p>
 +
 
 +
                <div class="h2">Our lab</div>
 +
                <p>Our lab locates in the building of Department Life Science and Technology, Huazhong Agricultural
 +
                    University. An access controlling system prevents unauthorized person form entering, you have to
 +
                    show
 +
                    your student ID card to get into the door. Our biological wastes are managed by trained stuff
 +
                    therefore
 +
                    will not enter the water body or contaminate the outside environment.</p>
 +
                 <div class="h2">Policies</div>
 +
                 <p>Here we illustrate that our 2018 project did not involve human experimentation, gene drive, use of
 +
                    animals, or use of any parts from risk group 4 organisms. Our compliance with the “Do Not Release”,
 +
                    “Deletions as Modification” and “Anti-Microbial Resistance (AMR)” policies is demonstrated above,
 +
                    as we
 +
                    always take care of what we use and never let experimental organisms with resistance plasmid or
 +
                    genome
 +
                    modification out of the lab alive without handling. As for the Human Subject Research policy, our
 +
                    survey is basically about the public’s opinions or attitude towards newly emerged cancer
 +
                    treatments,
 +
                    which barely involved any ethical issues. Nevertheless, we referred to the “Guidelines on Ethical
 +
                    Review of Biomedical Research Involving Human Subjects (NHFPC, 2016)”, and the “International
 +
                    Guidelines on Market Views, Social Surveys and Data Analysis (ICC/ESOMAR, 2016)”, before designing
 +
                    the
 +
                    questionnaire, for the protection of the public. All the safety rules are also obeyed, see previous
 +
                    descriptions.</p>
 
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                    <span class="biaoti">Safty</span>
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                <p class="daohanger">neironger</p>
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            <p class="daohanger">Introduction</p>
−
                <p class="daohanger">neirongsan</p>
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            <p class="daohanger">Lab Safety</p>
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                 <a>
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            <a>
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                    <span>Back&nbsp;to&nbsp;Top</span>
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                 <span>Back&nbsp;to&nbsp;Top</span>
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            </div>
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            <a class="daohangyi" href="https://2018.igem.org/Team:HZAU-China/Human_Practices">
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                <span class="biaoti">Human Practices</span>
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            <a class="daohangyi" href="https://2018.igem.org/Team:HZAU-China/Public_Engagement">
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                <span class="biaoti">Public Engagement</span>
+
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                <span class="xsjPic"><img src="https://static.igem.org/mediawiki/2018/7/7c/T--HZAU-China--ysj.svg" alt=""></span>
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            <span class="biaoti">Human Practices</span>
 +
            <span class="xsjPic"><img src="https://static.igem.org/mediawiki/2018/7/7c/T--HZAU-China--ysj.svg" alt=""></span>
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        </a>
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        <a class="daohangyi" href="https://2018.igem.org/Team:HZAU-China/Public_Engagement">
 +
            <span class="biaoti">Public Engagement</span>
 +
            <span class="xsjPic"><img src="https://static.igem.org/mediawiki/2018/7/7c/T--HZAU-China--ysj.svg" alt=""></span>
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Revision as of 20:29, 16 October 2018

Introduction

This year, we have done a lot of work in order to meet the requirement of biosafety. After collecting opinions from experts and the public, we learned that the general concerns are about: How is it safe to apply bacteriotherapy against cancer without causing unexpected damage or infection? We took these concerns seriously and have found some practical solutions.

Safety Form

Salmonella Typhimuriu is not entirely harmless. In fact, the strain sl1344 which we chose for our project may as well cause slight enteritis. However, we chose it base on the fact that it is a well-learned intracellular pathogen with a lot of engineering experience we can refer to, which is suitable for delivering GSDMD into cells. So we finished the Check in Form and the Safety and Security Form carefully to make sure the information is clear and intact as well as we can.

Salmonella Gene Knock out

Gene sifA is a vital gene located in Salmonella pathogenicity island, which increases the stability of Salmonella-Containing Vacuole (SCV) after infection. We knocked out the sifA gene from Salmonella Typhimurium str. SL1344 genome by conjugation transfer. The aim is to reduce the toxicity of Salmonella itself, then allow the GSDMD protein, which is able to rupture the phospholipid bilayer structure, to release into the cytoplasm of a tumor cell. After gene knock out, the strain can be easily controlled by human macrophage. See also Design and Result pages for details.

Enhanced Targeting Specificity

Salmonella has natural taxis towards tumor microenvironment. Base on the results of public survey and some opinions from experts, we decided to enhance the targeting specificity to a new level. We designed a new circuit to introduce OmpA-RGD protein as a surface recognition molecule, where RGD is a well-studied tumor homing tripeptide that binds specifically to alpha v beta 3 (αvβ3) integrin, a protein widely distributed on the surface of tumor cells. We successfully displayed RGD on the surface of a bacteria strain, also proved its targeting ability towards αvβ3. See also Design and Results pages.

Lab Safety
General Safety Matters:

In our lab there is a safety training for everyone which covered following aspects:

1. Personal peripheral wear: Lab coat and gloves must be worn all the time during work. Personnel must wash their hands after experiments, or before they leave the laboratory working areas. Open-toed footwear must not be worn in laboratories. Eating, drinking, smoking, applying cosmetics, handling contact lenses and sleeping is prohibited in the laboratory working areas.

2. Chemical safety: We printed “Dos and don’ts when using hazardous chemicals” and posted them on marked place. Students are trained to use dry powder extinguishers and carbon dioxide fire extinguishers in our lab.

3. GMO safety: No biological materials are allowed to be brought out of our lab. Strains must be put into death before dumping.

4. Study of guidelines: We listed some biosafety websites used for team member education:

Govern biosafety in research laboratories:
http://english.biosafety.gov.cn/

Biosafety guidelines of our institution:
http://swx.hzau.edu.cn/

Regulations that govern biosafety in research laboratories:
http://english.biosafety.gov.cn/

Our lab

Our lab locates in the building of Department Life Science and Technology, Huazhong Agricultural University. An access controlling system prevents unauthorized person form entering, you have to show your student ID card to get into the door. Our biological wastes are managed by trained stuff therefore will not enter the water body or contaminate the outside environment.

Policies

Here we illustrate that our 2018 project did not involve human experimentation, gene drive, use of animals, or use of any parts from risk group 4 organisms. Our compliance with the “Do Not Release”, “Deletions as Modification” and “Anti-Microbial Resistance (AMR)” policies is demonstrated above, as we always take care of what we use and never let experimental organisms with resistance plasmid or genome modification out of the lab alive without handling. As for the Human Subject Research policy, our survey is basically about the public’s opinions or attitude towards newly emerged cancer treatments, which barely involved any ethical issues. Nevertheless, we referred to the “Guidelines on Ethical Review of Biomedical Research Involving Human Subjects (NHFPC, 2016)”, and the “International Guidelines on Market Views, Social Surveys and Data Analysis (ICC/ESOMAR, 2016)”, before designing the questionnaire, for the protection of the public. All the safety rules are also obeyed, see previous descriptions.

Safety

Introduction

Lab Safety

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Human Practices Public Engagement