Innovative Houston lab works with 'ghost hearts' to study impact of regenerative medicine

stem cell magic

A Houston research team is studying the effects of regenerative medicine on hearts. Photo via TMC.org

Ask any high achiever and they’ll tell you — failure is the path to success.

As Camila Hochman-Mendez puts it, “I’m like Thomas Edison, right? I know a thousand ways of how not to create a lightbulb.” But she’s not really talking about electricity. Hochman-Mendez is director of Regenerative Medicine Research and the Biorepository Core at Texas Heart Institute.

Hochman-Mendez follows another pioneering woman in the role, Doris Taylor. The younger scientist took on the prime job when Taylor left in 2020. By then, Hochman-Mendez had been at The Texas Heart Institute for three years, moving from research scientist to assistant director in just four months.

Regenerative Medicine is every bit as exciting as it sounds. At Hochman-Mendez’s lab, her team creates ghost hearts — organs from which all cells are scrubbed, leaving collagen, fibronectin, and laminin in the shape of the formerly beating ticker. The goal is to use the decellularized organs as protein scaffolds that, once injected with stem cells, will once again contract and pump blood.

Hochman-Mendez cautions that we are still years away from that point, but her lab is working hard to get there.

“The ultimate goal is to develop functional hearts that can be used for transplant,” says Hochman-Mendez.

Those hearts would be made from the patient’s own cells, avoiding organ rejection, which the scientist says is essentially trading one disease for another. But she is realistic about that fact that there are many barriers to her success.

“It does come with a lot of technical challenges,” she says.

These challenges include the simple number of cells that billions, and potentially hundreds of billions of cardiomyocytes are needed to recreate a human heart. The necessary protocols, Hochman-Mendez explains, are extremely costly and labor intensive.

It also takes 60 days for the cells to reach a maturity at which they can function. The lab recently received a pair of grants targeted at creating bioreactors that can be reliable for at least those 60 days.

The third major issue facing the Regenerative Medicine lab is contamination.

“It needs to be very sterile,” says Hochman-Mendez. “It needs to be so clean that if you have one tiny bacteria there, you’re screwed.”

Fortunately, the scientist says that her favorite hobby is computer programming. She and a physician colleague have created a robotic arm that can help to prevent the contamination that often stemmed from humans manually injecting stem cells into the decellularized organs.

This not only works towards solving the contamination problem, it also allows the team to more accurately distribute the cells that they add, using an injection map. To that end, she is producing a three-dimensional model of a protein scaffold that will allow her team and other scientists in the field of regenerative medicine to understand how the cells really disperse when they inject them.

When will her lab produce working hearts?

“I try to be very conservative on timing,” she says.

She explains that it will take significant leaps in technology to make a heart mature to the level at which it’s usable for an adult body in 60 days.

“That’s magic and I don’t believe in magic,” she says, but adds that she hopes to have a prototype ready to be tested in five years.

Hochman-Mendez does this all with a small team of nine researchers, most of whom happen to be female.

“The best candidates are the ones that I select," she says. "The majority are females. I think it’s a mix of trying to be very unbiased, but I usually don’t even look at the name before looking at the CV to preselect the people that I interview.”

And together, Hochman-Mendez are making medical history, one success-spawning failure at a time.

Camila Hochman-Mendez is director of Regenerative Medicine Research and the Biorepository Core at Texas Heart Institute. Photo via texasheart.org

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Doris Taylor from the Texas Heart Institute has been named to the National Academy of Inventors.

Houston inventor receives national recognition for leading innovation

Leading lady

A Houston inventor is being recognized for her leadership within cardiovascular regenerative medicine. Doris A. Taylor from the Texas Heart Institute has been named among the National Academy of Inventors' 54 academic inventors to the spring 2019 class of NAI Senior Members.

Taylor's work involves finding alternatives for the current practices for organ transplants, including the whole organ decellularization/recellularization technologies she developed in 2008.

"Dr. Taylor's work has revolutionized the field by making it possible to bioengineer scaffolds that effectively mimic natural organs," says Dr. Darren Woodside, Texas Heart Institute's vice president for research, in a news release. "The three U.S. patents she currently holds have spun off 28 international patents, stimulating the worldwide tissue engineering industry. Her current research team is refining these technologies and developing others, potentially revolutionizing the transplantation industry and eliminating wait lists for life-saving transplantable organs."

NAI selects its honorees by identifying their impact on the welfare of society, the release reads, and have proven success with their patents, licensing, and commercialization.

NAI Senior Members are active faculty, scientists and administrators from its Member Institutions who have demonstrated remarkable innovation producing technologies that have brought, or aspire to bring, real impact on the welfare of society. They also have proven success in patents, licensing and commercialization.

An individual's nomination for the NAI Senior Member class by its supporting institution is a distinct honor and a significant way for the organization to publicly recognize its innovators on a national level.At their host institutions, Senior Members foster a spirit of innovation, while educating and mentoring the next generation of inventors.

The new class of NAI Senior Members includes representatives from 32 institutions. Texas A&M University has two researchers in the class — Robert Balog, an associate professor in the Department of Electrical and Computer Engineering, and Balakrishna Haridas, a professor of practice in the Department of Biomedical Engineering and executive director for technology commercialization and entrepreneurship for the Texas A&M Engineering Experiment Station.

This latest class of NAI Senior Members represents 32 research universities and government and non-profit research institutes. They are named inventors on over 860 issued U.S. patents. In February, two Houston inventors were named to the inaugural class of senior members.

"NAI Member Institutions support some of the most elite innovators on the horizon. With the NAI Senior Member award distinction, we are recognizing innovators that are rising stars in their fields," says Paul R. Sanberg, NAI president, in the release. "This new class is joining a prolific group of academic visionaries already defining tomorrow."

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New AI program powered by Mark Cuban opens applications for Houston students

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The Mark Cuban Foundation is partnering with digital consultant company Perficient’s Houston office to bring a one-of-its-kind, free artificial intelligence camp to high school students in Houston.

Applications, which are open now online, will close September 30.

“With the proliferation of AI, it’s more important than ever to increase AI education – especially among today’s youth,” Bill Davis, senior vice president at Perficient, says in a news release.

The curriculum will focus on the latest developments in the world of AI and Generative AI. The camp — held at Perficient’s Houston office on November 2, 9 and 16 — will provide students with necessary tools and technologies to help inspire a new generation of AI users and professionals. The camp aims to help underserved high school students with a focus on recruiting students of color, first generation college students, girls, and those from lower to moderate income households.

“As AI continues to become an undeniable force in all of our lives, it’s crucial that we open the door to this knowledge, especially to young people who want to explore it,” Cuban says in the release. “While technology expands and becomes more advanced, it becomes more critical that we ensure our students are prepared when they apply for schools or jobs in the future. Thanks to our work with Perficient, the bootcamp will offer an avenue to explore this fascinating field of technology to any student, no matter their means.”

Students can select from six tracks in the course that include healthcare, arts and entertainment, business and entrepreneurship, computer science, sports science, or education and career readiness. The AI Bootcamps are introductory and accessible to students in ninth through 12th grade with an interest in technology without any prior computer science experience. Transportation, resources and food will be provided.

As classes like STEM increase in popularity more programs have been created to help increase interest. More than 233,000 high school students in Texas took Career and Technical Education courses focused on STEM from 2020-2021.

“We’re proud to partner with the Mark Cuban Foundation to educate the next generation of technology leaders, mentoring students in AI, and ensuring the future of STEM,” Davis said in a news release.

UTSI's advisory board digs into cybersecurity's challenges, trends + tech

From The Board

In today's digital landscape, the convergence of Information Technology (IT) and Operational Technology (OT) presents both opportunities and challenges for critical infrastructure asset owners and operators.

UTSI, a leading systems integrator of OT technology, has assembled an OT Cybersecurity Advisory Board to address these challenges and highlight standard processes and best practices to evaluate and secure these environments.

“We are excited about the strength of our esteemed Advisory Board and are confident that these strategic alliances will enhance our competitiveness,” says Shaun Six, president of UTSI International.

A few of the drivers of OT and IT convergence include increased efficiency, enhanced data, and improved remote monitoring and control capabilities. It exists to promote the promise of connectivity, data visualization, and to enable AI and better decision-making.

Key challenges
However, there are challenges. Increased attack surface, legacy systems, and infrastructure, as well as differing security requirements and regulatory and compliance challenges are all present.

“As we witnessed our global infrastructure recover from the largest outage on July 19, this is a clear and present example of how the application of technology between IT/OT can have an impact on the underlying interdependencies in critical systems and infrastructure," says Cherise Esperaza, co-founder and president of Security Gate. "Therefore, there is an ever-increasing need for resources to be expended for this endeavor, and understanding the areas of risk alongside business outcomes as it relates to the convergence will be a critical to ensuring optimal availability of these systems.”

Increased monitoring

When it comes to security monitoring and incident response, it's vital to incorporate new tools to monitor, meeting the same standards as legacy assets and reporting vulnerabilities.

"Continuous monitoring is one of the most critical aspects of securing your IT/OT infrastructure," offers Eric Rippetoe, former CISO of Federal Energy Regulatory Commission and UTSI cybersecurity consultant. "Automated tools coupled with mature processes allow organizations to rapidly detect security threats and enable teams to quickly respond to address issues. Having a security incident and not knowing about it could result in huge remediation costs and major long-term reputational damage."

Emerging technology and trends
With the rise of AI, it makes sense now more than ever to follow the principle of "never trust, always verify." A Zero Trust architecture is a strategic approach to cybersecurity that secures an organization by eliminating implicit trust and continuously validating every stage of a digital interaction.

In line with this approach, UTSI International Corporation, as a Gold Partner of ThreatGEN, has been intensively utilizing ThreatGEN's AutoTableTop™ incident response tabletop exercise simulation tool. This advanced technology is helping UTSI provide meaningful tabletop exercises to their client base, particularly in high-risk SCADA and OT environments.

Clint Bodungen, president of ThreatGEN, emphasizes the tool's significance: "This tool is designed to sharpen incident response capabilities for teams operating in critical SCADA and OT environments. In these high-stakes settings, where system availability is paramount and the consequences of failure can be catastrophic, AutoTableTop™ provides an unparalleled platform for realistic, AI-driven tabletop exercises. It allows teams to practice and refine their responses to a wide range of scenarios, with practically zero planning time required, ensuring they're prepared for the unique challenges posed by industrial control systems where even a minor slip-up could have deadly consequences. This application of advanced simulation technology aligns with the industry's move towards more robust and realistic cybersecurity training, especially in sectors where the stakes are exceptionally high."

In conclusion
The convergence of IT and OT presents significant cybersecurity challenges for critical infrastructure. However, by understanding these challenges and implementing effective strategies, organizations can protect their essential systems from cyber threats.

“Maintaining an accurate inventory of assets poses a significant challenge for companies with control system networks," says Derek Harp, chairman, Control System Cyber Security Association International. "As outlined in our 2024 OT Cybersecurity Technology Report, not only is it difficult to identify these assets, but understanding their communication adds an additional layer of complexity. Typically, companies only gain a snapshot of their OT network status and assets' interactions during periodic assessments. Not surprisingly, our research also indicates that the frequency of these critical evaluations is increasing.”

The role of UTSI's OT Cybersecurity Advisory Board, along with the use of advanced tools like Security Gate and ThreatGEN, is pivotal in navigating this complex landscape. As the threat landscape continues to evolve, proactive measures and ongoing investment in cybersecurity will be crucial to safeguarding our most critical assets.

Play it back: Houston therapeutics co. sees momentum with expanded treatment opportunities

houston innovators podcast Episode 253

It's been a busy summer for Houston-based Coya Therapeutics, a clinical-stage biotech company that's creating revolutionary treatments for neurodegenerative diseases like Alzheimer’s, Parkinson’s, and ALS.

In July, Coya announced that has expanded its collaboration with Houston Methodist Research Institute, or HMRI. The publicly traded company also announced fresh funding from the Johnson Center for Cellular Therapeutics.

Last month, Coya reported that it has expanded its treatment research to see how GLP-1 drugs — a trending drug for weight loss — can enhance the effects of its proprietary therapeutics. By combining the medicines, Howard Berman, co-founder and CEO of Coya Therapeutics, says he thinks Coya can better treat these complex immune-based diseases.

Berman joined the Houston Innovators Podcast in April of 2023 to discuss taking Coya public and his passion for the company's mission.

"I was interested in what I could do for my dad," Berman says on the Houston Innovators Podcast, explaining how he took the meeting with Dr. Stanley Appel, who then presented him with some of his research. "By slide five my jaw had hit the ground.

"He had shown that he could stop the progression in one of his early trials of ALS," Berman says.

Berman shares more of the Coya Therapeutics story on the podcast, as well as how he sees Houston's potential as an emerging hub for biotech.

"The next number of years as we develop this therapeutic regimen for ALS, we have the potential to transform Houston into something more than it is currently," he says. "Our success will be the city's success."

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