|
Here’s some interesting science you probably didn’t know (plus the Media City Scientific origin story): 15 years ago, the first journal club I ever delivered looked at the effects of culturing cells in serum derived from different animals. 🐁 Mouse cells cultured in human serum had a human-centric immune response. 👩🔬 Human cells cultured in mouse serum had a mouse-centric immune response. …And isn’t it interesting to consider these results in light of the fact that (all types of) cells are most commonly cultured in serum from fetal cows? 🐮 These findings lived rent-free in my mind until 2024 when I decided to do something about it. Like many scientists, I’ve cultured a lot of cells in FBS because “it works” and “that’s how everyone does it.” Like many scientists, I could also list the reasons why FBS is far from ideal scientifically and ethically. So, I started by optimising a chemically defined supplement for the most nutritionally demanding primary cells I had worked with, then expanded to other primary cell types and immortalised cells. One year later, we’ve started shipping an alternative to FBS that supports the growth of a broad range of cells. I’m a scientist, so I’m naturally skeptical, but I’ve collected enough data to feel pretty stoked about the direction of 2025. It’s also been about a year of being public on the internet about the company journey - mostly musings on cool science and startups, sharing learnings from founding a boot-strapped biotech as well as my previous four years with a hypergrowth, VC-backed startup. I’ve met so many scientists and engineers from around the world, and you've made this whole journey extra rewarding. Who knows? Maybe you’ll also find your life circling back to the very first journal club you ever delivered. ______ Much more science can be found in the paper by Warren et al: Resilience to bacterial infection: difference between species could be due to proteins in serum. It’s open access! 🥳 Graph shows how mouse cells differ in TNF production following challenge by 20ng/mL of LPS, when cultured in different types of serum. It also shows an inverse relationship between the lethal sensitivity of each species to LPS and TNF production by mouse cells cultured in each species' serum. The good news for this particular research model? Calf serum aligns with human serum more closely than many other species. Is this always the case? Time will tell.... 
0 Comments
I came across this article from a few years ago and thought it was rather interesting and concerning1/9/2025 The article outlines how a group illegally smuggled 13,000 L of FBS from South America into Australia, posing a significant biosecurity risk. The smuggled FBS was used by the CSIRO in its cattle research and had the potential to introduce foot and mouth disease into Australian herds.
Events such as these underscore the value in replacing FBS with a broad spectrum chemically defined replacement. Bovine blood products illegally smuggled into Australia in international conspiracy - ABC News Behind the scenes of building a biotech company: A big milestone unlocked and supply chain dramas 🥳 😵💫 The highs: 🥳 1️⃣ I’m so pleased with how our FBS-replacement solution, FRS, is looking. I’ve been working out the final shipping format over the past months, and every time I go into the laboratory and see a wide range of cells growing in FRS after weeks and months, it just makes my heart happy. 2️⃣ Product is being shipped to scientists doing important work, who want and need to replace FBS in their cell culture. Some of these folks have worked alongside me in the past, and it feels really special to share this moment with them. Frankly, I probably need to pause and celebrate this milestone a bit more. I think it just doesn’t feel real yet. The lows: 😵💫 1️⃣ Gosh, life sciences supply chain can be so tough in Australia. Reagents might come with a quoted 6-8 week lead time...but sometimes I’ve seen that become 4+ months if it arrives at all! Sometimes I wonder if I should just fly to the US to visit family & pick up reagents at the same time! (Would this make the flight a business expense? Not sure what the import implications would be, so please don’t interpret this musing as a recommendation!) 2️⃣ The last 2 months have brought some personal life challenges. One of my jobs as company leader is to constantly assess “what are the biggest risks to the business right now?” Reality is, at this tiny stage of company growth, if something slows me down even marginally, it’s going to slow down company progress as well. Something I’m keen to de-risk as we move into 2025 and figure out what scale-up looks like. Overall, it feels good. I’m a cautious scientist by nature, but I’m becoming increasingly excited about the potential FRS has to replace a great deal of FBS out there - making cell culture more sustainable, consistent, and contaminant free. Photo: Our first labels! It’s getting real 😍  This week in "behind the scenes of building a biotech company", it's IP protection, manufacturing and marketing! And - of course - a lot of cell culture. Scientists, don’t believe anyone who tells you starting a company is glamorous 🙃 Here’s the fun part of building a company ➡ You'll work across all areas of the business as you build the version 1 of all major processes. Here’s the reality of starting a company ➡ Initially, those self-developed V1 processes won’t be all that great. Where we’ve needed to upskill over the last month: 1️⃣ Forming a well-researched opinion on intellectual property strategy 2️⃣ Website design, company branding, and sales 3️⃣ Manufacturing, supply chain, and distribution strategy for scale and geographies 4️⃣ Financials big and small: from stress-testing our funding strategy to improving our accounting Where I’m confident: ✅ The science behind the product: As we would hope, given how long I’ve been a scientist! ✅ The market: Arguably the most important area to nail as an entrepreneur. ✅ Hiring, growing, and leading a technical team: It’s critical to make the right hires at the right time. I’ve done enough of this previously to be confident we’ll do a great job. ✅ Our ability to figure it out: Look, I’m naturally a little bit skeptical and a realist, probably “too much of a scientist” and not quite the ambitious, overly confident entrepreneur that plenty would argue I need to be in order to launch a company of this magnitude. But we’ve built a laboratory, made the necessary technical progress, spoken with hundreds of potential customers, built V1 pipelines in all the critical areas, and have done so on a shoestring budget. This time last year, all of those goals felt insane. Turns out that Katie-one-year-ago was capable of more than she thought she was. So manufacturing and scale-up strategy, let’s bring it on.  When I decided to build a biotech company, there were a series of routines or small habits I committed to. The goal? To build momentum across the many parameters of running business - from technical to customer to finance.
A few months in, here’s how those routines are compounding: ⤵ 1️⃣ Our laboratory is just down the road from my house. The convenient location means I run experiments constantly - including weekends & public holidays. ➡️ It’s not glamorous, but it’s honest work. I’m obsessed with this problem and have made good progress - but that’s a topic for a more technical post, coming soon! _______ 2️⃣ I share something I’ve learned publicly at least once a week. ➡️I grew very quicky in my previous role at an early-stage startup but didn't have the time/mental space to solidify those learnings. Humans learn best by teaching and I'm clearer on how to hire/lead/grow a team of scientists following this period of reflection & writing. Other positives: ✅ Helped a friend hire a scientist for her early-stage startup ✅ Found my first customers & collaborators ✅ Sending my words into the world felt intimidating, but so did the idea of shipping a product. Had to start somewhere! Hopefully it’s also useful for other scientists interested in entrepreneurship - that has always been the primary goal. _______ 3️⃣ I receive a daily update of the newest hits on google for my areas of scientific interest. ➡️Lots of new scientific learnings 😊 _______ 4️⃣ We're regularly applying for grants that Media City Scientific qualifies for. ➡️Some failures, but enough success to keep us funded! My co-founder takes on the lion’s share now; most government grants are administrated by non-scientists, so tailoring applications to the appropriate audience is important! I built my own cell culture facility in order to complete the early-stage R&D necessary to start a biotech company. Here are the questions that land my inbox most weeks ⤵
Wait, you built your own lab? That’s crazy! How did you do that? ➡️ I previously built a lab while working at another early-stage startup. My husband had just finished building our house, so we figured a laboratory couldn’t be too much more challenging. ___ How much did it cost? ➡️ We spent ~14k USD (20k AUD) to establish the laboratory. It required some investment, but it was much less expensive than most people expect! Factors that helped us do a lot with a limited budget: 💵Performing some of the building work ourselves (e.g. dry wall) 💵Purchasing second-hand lab equipment 💵Claiming 43.5% of R&D spending back from the Australian government (very helpful!) ___ Why didn’t you just rent lab space? ➡ I live ~2 hours from Sydney. Because this is regional Australia, there are no rental lab facilities nearby. I wanted the lab nearby so R&D could happen seven days a week. ____ Weren’t regulations a pain? ➡ Regulations were less complicated than I expected, largely because I'm not working with genetically modified organisms or anything similar. I am sure these vary between countries. ____ What are you doing in your lab? ➡ I’m developing a chemically defined, animal-component free substitute for fetal bovine serum. I’ve achieved some exciting results with a variety of nutritionally demanding primary cell types and will be sharing more soon 🎉 ____ That’s so cool that you built a lab! ➡ Thanks! I'm super excited about it! ____ Happy to answer any other questions - or give advice if you're thinking about doing this too! ____ 👋 I’m building a biotech company and sharing some of the behind-the-scenes online, in the hopes of lowering the barriers to entry for other scientists interested in commercialization. I’ve spent over 15 years working in mammalian cell culture labs, so a few years ago, I was happy to transition away from the bench to a more management-oriented role. Being a people manager is a huge responsibility; you inevitably have a massive impact on the lives and careers of your direct reports - for good or for bad. I also gained a lot of satisfaction from assembling the ideal team; one whose individuals’ strengths and weaknesses complimented each other, so they could achieve goals at maximum efficiency. And so, I wondered whether “returning to the bench” as I start my own company might feel monotonous compared to the new challenges around team management I had been enjoying. I shouldn’t have worried. Today, I get a bit of a thrill whenever I enter my lab; I built this lab and I own the IP I’m generating here! It still feels like this crazy dream I’m living and as a result, something as simple as passaging cells feels really cool. __________ Outside of the lab, here’s what I’m learning from building: 1️⃣ Get your webpage up. Someone told me “Get a landing page up early, even if it’s not the most gorgeous landing page, because you’ll learn a lot based on how people interact with it.” So true - and it has been really motivating to get emails from folks from around the world, keen to eliminate their use of FBS. 2️⃣ Build relationships early. I’ve been in the early-stage startup world for a while; it’s a world where research pivots really fast. Those pivots don’t happen so quickly in academic and other industry labs, so it’s been encouraging to realise that I can and should start conversations with collaborators early. 3️⃣ Old habits die hard. Awareness of the traps you’re predisposed to fall into and a team that holds you accountable is critical. Here are some areas I improved in after holding an executive role at a startup company: ➡️ Spending money as needed to reach research goals ➡️ Owning how capable I am ➡️ Saying no Here are the traps I’m continually reminding myself to avoid now that I’m building my own company: ➡️ Being too frugal ➡️ Hesitating to vocalize big goals to others because I feel insecure ➡️ Spreading myself too thin An embarrassing amount of overlap 🙃 Thankfully, being aware of the traps I’m predisposed to fall into means my community knows what to hold me accountable on. With their help, it won’t be those traps that get me!  An unexpected joy of lab life: the enthusiasm on my one-year-old son’s face on liquid nitrogen delivery day. Unsurprisingly, breaking down big boxes of consumables is his other favourite way to help me - I’m excited to show him more science as he gets older. Later, I’ll jump into the lab for a few hours to passage some cells. I’ve been trying to get access to a wide range of new cells lately - to expand the range of primary and immortalised cells that my serum-free media has been used to culture - so there’s a lot of cell culture in my future! I’ll readily admit when I committed to building something new, it felt scary. When people asked what I did for work, I stumbled through my answer. Four months on, it doesn’t feel that way anymore. I have moments where I wish I could do more or move faster (probably the realities of shifting from leading a team of 30 to becoming a one scientist team), but when I take time every month to look at what we’ve accomplished, I’m always pleased with how much happened in 30 days.  Microplastics absolutely everywhere - even in the milk we feed our babies!? Some scary science & the startup companies you should be aware of:
➡️ The big issue: Microplastics are tiny plastic particles. At 5-100nm in size, they enter humans by ingestion, inhalation, and dermal contact, but research using animal models and human cell lines suggests they’re also responsible for health problems. 🍼 Science deep-dive: Recently, microplastics were found in breast milk of 26 out of 34 new mothers. No relationship with the use of personal care products containing plastic compounds or consumption of food and drink in plastic packaging was identified, suggesting microplastics are pretty much unavoidable at this point. 👩🏽🔬 Keen to get involved? Startups like Matter. and Xampla (UK), Uluu (AU), and Mushroom Material (NZ) are building in this space by: ✅Removing microplastics from the environment ✅Recycling those microplastics ✅Replacing plastics with sustainable alternatives Viruses that attack bacteria, the immunology of breast milk, and how your DNA remembers fear. A little February round up of the cool science I’ve been digging into this month:
1️⃣ Breast milk has live stem cells in it. When you isolate these cells and expose them to the right nutrients, they can produce milk. This is the basic premise behind some of the early-stage companies centered around laboratory-grown breast milk. These milk-derived stem cells also have unusually low tumorigenic potential and don’t often form teratomas, which could make them great candidates for regenerative therapies. 2️⃣ Phages can be engineered to specifically target and kill cancer cells. Bacteriophages are viruses that infect bacteria, rather than eukaryotic cells like those found in humans. The potential use cases for phages are broad, ranging from human health to agriculture. Use of phages in cancer therapies is still early stage, but there’s a lot to suggest they could become a crucial therapy in years ahead. 3️⃣ Fear triggers epigenetic changes that can persist long-term. Better understanding of these molecular mechanisms could lead to better treatments for post-traumatic stress disorder. It also suggests that certain phobias - spiders, snakes - may be inherited from our ancestors. 1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6570695/ 2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10684691/ 3. https://www.nature.com/articles/s41380-024-02453-4 |
What's been happening?Sharing the Media City journey is important to us because we want to encourage the next generation of scientists to establish companies that will advance scientific research. Check back regularly for the "building in public" updates on what it looks like to establish a scientific company. Archives
January 2025
Categories |
RSS Feed
