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Revision as of 15:06, 18 September 2015
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Homepage
Cancer is the second leading cause of death in today’s society. Due to the high fatality rates of cancer, this disease has become a top priority for many organizations. There are many research facilities dedicated solely to curing cancer. The Central iGem project is presenting a unique spin on cancer treatment and research.
Meet The Team
Jared
Jared was once a no life, that is, until he joined IGEM -- of which then, he became a no life that does science. If he isn't in the lab, then in all likelihood, he would be attempting to learn idioms, reading papers, doing math, memorizing the quadratic formula, and devouring ice cream.
Jessica
Jessica Skall is a grade 12 student at Central Memorial Highschool. She recently moved to Calgary from Toronto, and she felt that iGem would be a good place to make friends with common interests in science. Long team plans of hers include becoming an international ESL teacher. That is all
Francis
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Natalie
Natalie is a grade twelve student in Central's Performing and Visual Arts program in the dramatic arts discipline. She has always had a passion for the arts, having done private voice lessons from ages 8-16 as well as being involved in several choirs including Central Memorial's concert choir. Natalie, although always very academic, became extremely fascinated with human biology throughout high school. She worked as a research assistant in the lab of Dr. Marie Fraser at the University of Calgary during summer of 2015, work in on a biomedical research project with future application in dislipodemia and cancer treatment. Her future aspirations are to study Life Sciences or Health Sciences and one day become a perfusionist.
Danielle
My name is Danielle and I am currently a grade 12 student at Central Memorial High School. At central, I am a part of the Performing Visual Arts program for dance. I do many genres of dance such as jazz, tap, ballet, lyrical, hip hop, and more. It takes up most of my free time. I am also a co-captain of the cheerleading team, and a member of the iGem team. Being a part of iGem is a great experience! In the future, I aspire to be a doctor, and this is why I am a member of the iGem team. IGem has broadened my knowledge and will potentially help me in fulfilling my career goals.
Alexia
Alexia Gendron is a simple 12th grader who spends her spare time perfecting recipes and playing piano. She enjoys reading, volunteering, good soup, Italian, and having insightful conversations. Although born in Calgary, Alberta, she was brought up in French, and attended a francophone school until her 10th grade. This has given her exposure to French-Canadian culture and taught her where to find it even if she finds herself a few provinces away from its origin. For five years she took karate and developed quite a fondness for martial arts. Despite having had to stop karate this year, she plans on starting to practice judo as soon as possible. After discovering Ronda Rousey, she found the very first person ever to move her so strongly, and she considers Rousey to be an inspiration. Right now, Alexia is focusing on the present, and is trying to enjoy her final year of high school before she graduates. Although she plans on attending university next year, she has yet to figure out exactly what she wants to study. She has always loved to learn all there is to learn and do all there is to do; she hopes to travel the world someday, meet fantastical people, and have a great collection of jaw-dropping stories to tell.
Zenab
Zenab Bhamgerwala is a grade 12 student at Central Memorial High School. She joined the iGEM team because of the vast amount of opportunities it offered. Through central iGEM, Zenab was able to perform various procedures in the lab and gain a great amount of experience in the world of synthetic biology. Outside of school she enjoys being the programming lead of her Robotics team, sketching, reading, and running long distance. In the future, Zenab hopes to pursue her passion of biomedical studies in post secondary. Joining this team has helped develop essential life skills and reaffirm her career decisions.
Vlad
Vladimir has been living in Calgary since day one. Growing up, he has experienced and explored everything from the bike paths in Fish Creek to the top of the Bow. At the age of eight, Vladimir developed a passion of photography and filmmaking, and carries it with him to this day. If he is not capturing photos, or studying, you can most likely find him zipping around from city to city on his bike. His passion for iGEM developed within the first weeks of grade ten, and carries into many aspects of his life. From lab work to media, Vladimir does it all.
Attributions
Thank you for you generous sponsorship
For giving us an opportunity and something worth my spare time
Special Thanks to: David Lloyd, our mentor
Iain George our other mentor
Ms.Wyshinski, who is practically a biologist and kept us on track
Mr.Klemmer for his great support
Why Synthetic Biology
Of the numerous treatments for cancer available today, not one has the ability to dependably cure cancer. In fact, not only is there no treatment guaranteed to reverse cancer, but there is also no treatment out there that doesn’t entail undesirable side effects. Notably, chemotherapy, surgery, and radiation therapy, the most common treatments for cancer, have grave effects. Chemotherapy is not an effective cure and rarely works without additional, complementary treatments. It is known for its aggressive side effects such as bone marrow suppression, hair loss, vomiting, damage to the nervous system and vital organs. People rendered weak by their cancer, often will not survive surgical procedures.
In a search for a treatment with a greater effectiveness or much less severe side effects, we’ve considered taking a different approach. Some preliminary work similar to our concept has already been done by biotech companies, such as Aduro BioTech Inc., who have engineered Listeria to elicit an immune response. However, it’s not to say that synthetic biology is by any means widely available or well-researched - no company or research team has made it beyond clinical trials, which are still revealing much on the subject and it remains a very controversial method. There is still much room for theories and experiments, for great pharmaceutical companies and tiny high school iGEM teams alike.
Antiangiogenic therapy is what many doctors are referring to as the future of cancer treatment. Through numerous trials, doctors have found that with antiangiogenic therapy tumours may be left dormant without need for further treatment. Currently, there are some antiangiogenic drugs being prescribed to cancer patients alongside their chemotherapy treatments. Our approach to antiangiogenic therapy, through our bacterial system of delivery, could one day potentially eliminate chemotherapy as the primary cancer treatment.
The Project; The Dream
This project is based on the idea of using antiangiogenesis to potentially kill cancerous growths. Angiogenesis is the growth of new blood vessels via cell-signalling pathways. These blood vessels supply tumors with nutrients, which fuel the ability of cancerous cells to further proliferate. Vascular endothelial growth factors (VEGF) are potent stimulators of tumour growth and endothelial cell proliferation. It also increases tumour permeability (thus allowing leakage of proangiogenic proteins into the tumour microenvironment). VEGF is caused by hypoxia and the resulting anaerobic proliferation. This project is based upon the idea that through antiangiogenic therapy, the growth and development of tumors is inhibited and the tumour will cease to proliferate. With extensive research, the Central iGem team was able to conclude that the cancer most suitable for antiangiogenic treatment was Colorectal Cancer. This cancer was the most viable option because Colorectal tumours are generally localized.Localization allows antiangiogenesis to not spread to healthy vasculature but rather become more potent to the tumour itself.
In order to introduce antiangiogenesis to the malignant tumours, the Central iGem team has developed a few constructs.
Construct: pLac Angiostatin
The angiostatin is needed for the antiangiogenic treatments. Angiostatin is a highly potent anti-angiogenic inhibitor which blocks tumour vasculature. Angiostatin is derived from plasminogen and is a proteolytic inhibitor of angiogenesis. Unlike the parent protein, the angiostatin kringle domain does inhibit angiogenic activity. pLac is already secreted by tumours on a constant basis.pLac is a lactic acid promoter that is generated due to the Warburg Effect (anaerobic respiration).
Construct: pLac RFP
This construct is comprised of pLac and red fluorescent protein, or RFP. This construct is designed to characterize and better define the pLac promoter, through the use of visual measurement. When the plac promoter is working, one can measure the RFP secreted, in red fluorescent units, or RFU, depicting the amount of RFP secreted, creating a better visual understanding of how well the promoter works.
The Project: The Bio-Brick
The Bio-brick that the Central iGem team has been designed with the Colorectal tumour environment in mind.The promoter is Lactic Acid, an acid produced in mass amounts due to the Warburg Effect. Most cancer cells, rely on aerobic glycolysis which is transformation of glucose to pyruvate when limited amounts of oxygen are available. One of the products of aerobic glycolysis is lactic acid. That is the Warburg Effect. Normal or healthy differentiated cells rely primarily on mitochondrial oxidative phosphorylation to generate the energy they need for cellular processes.
Once the bacteria is in an Lactic Acid environment there is a ribosome binding site which allows for protein synthesis. Angiostatin protein is later released which blocks the growth of new malignant vasculature. The secretion tag is then what forces this protein out of the bacteria. A stopper will be in effect that will signal the termination of the synthesis of the protein.
Antiangiogenesis is a practical concept for cancer patients. Ingestion, our method of delivery has a very limited degree of danger because it is one of the least invasive treatment options. It ensures that the bacteria will safely and simply pass through your system, without risk of any remaining in the body. Lactobacillus and bifidobacterium are possible bacteria to be used in the future, as E. Coli could be potentially harmful when introduced to the human digestive system. These bacteria are proven in clinical trials to be safe for ingestion.
Lab Protocol 1: Making LB Broth
This protocol is used to make LB Broth. This like every protocol has been adapted from the Synthetic Biology Guidebook for iGEM High School. Important note for all protocols: Everything must be sterile, and kept as aseptic as possible, throughout all procedures.
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Lab Protocol 1.5: Making LB Plates
This protocol is used to make LB Plates. Note how this protocol makes 500ml of LB Agar for 20-25 plates. It can be scaled up and down as required.
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Lab Protocol 2: Using the DNA Plate - Rehydrating
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Lab Protocol 3: Making Competent Cells
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Lab Protocol 4: Restriction Digestion
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Lab Protocol 5: Ligation
A few notes about the ligation: There should be a 3:1, insert DNA (the segment being added) to the vector DNA (the now linear plasmid backbone). Also, the amount of DNA in the ligation should be low, around 100ng.
The DNA concentration is assumed to be the same for both the insert and vector restriction digests, and it equals 25ng/µl, as set up by the previous protocol. Assuming the insert is about half the size of the vector, to get a molar ratio of 3 insert : 1 Vector, the volume ratio must 1.5 insert :1 vector.
Ligation buffers are usually 10 fold, (10x) more concentrated than needed. Therefore, they need to be diluted 10 times, i.e. 1µl in a total volume in 10µl.
*A general formula for determining the volume ratio of insert to vector.*
Vi / Vv = 3 x (Cv / Ci) x (Mi / Mv)
Vi = Volume Insert
Vv = Volume Vector
Cv = DNA conc. of vector restriction digest
Ci = DNA conc. of insert restriction digest
Mi = Molecular weight i.e. approximate size of insert
Mv = Molecular weight i.e. approximate size of vector
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Lab Protocol 6: Transformation
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Lab Protocol: Miniprep
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Lab Protocol 8: Making 10X TAE Buffer
To prepare 10x TAE Buffer you must first prepare a solution of 0.5M EDTA (pH 8.0).
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Lab Protocol: Agarose Gel Electrophoresis
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Safety
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec lacinia, mauris vel porta pellentesque, lectus mi aliquam erat, ut ultricies ex orci id massa. Cras ultrices lacinia libero sed porta. Pellentesque tempor vehicula leo, sit amet viverra dui posuere et. Vivamus gravida et felis ut interdum. Phasellus quis quam enim. Nullam suscipit viverra ex, sit amet bibendum massa scelerisque et. Nunc a lorem nisi. Integer ultricies metus sed mi pretium, vitae aliquet mi egestas. Duis gravida tellus quis sem scelerisque varius. Mauris erat lorem, congue sit amet erat eu, bibendum laoreet nisl. Morbi ac massa eu quam pulvinar lacinia lacinia et dui. Aliquam sed ex lobortis, lobortis tellus ut, pretium sem. Aenean id semper lacus. Sed sed mauris lobortis, tincidunt sapien vel, dictum ipsum. Nulla euismod dui at placerat pulvinar.
Ethics
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Logbook
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Outreach
Please click the images to see the explanation of the event
Using synthetic biology is not a firmly established practiced in the medical field. The central iGem team participated in several outreach opportunities, where they have explained this concept to different members of the public. These experiences have benefitted the project, increased every member’s awareness, and of great variety were, each in their own way, strongly impacting.