Houston biotech startup secures $10M seed round to propel cancer-fighting therapy from bench to bedside

fresh funding

CrossBridge Bio, formed during the TMC Innovation’s Accelerator for Cancer Therapeutics program, closed a $10 million seed round led by TMC Venture Fund and CE-Ventures. Photo via Getty Images

A Houston biotech company based off research out of UTHealth Houston has raised seed funding to continue developing its cancer-fighting therapeutic.

CrossBridge Bio, formed during the TMC Innovation’s Accelerator for Cancer Therapeutics program, closed a $10 million seed round led by TMC Venture Fund and Crescent Enterprises' VC arm, CE-Ventures. The round also included participation from Portal Innovations, Alexandria Venture Investments, Linden Lake Labs, and several pre-seed investors.

“We are thrilled to have the support of such experienced investors who share our vision of bringing transformative cancer therapies to patients in need,” Michael Torres, CEO of CrossBridge Bio, says in a news release. Torres served as an entrepreneur in residence of ACT.

The company is working on the next-generation of antibody-drug conjugates (ADC) therapeutics that process dual payloads as targeted treatments for a set of challenging cancers. The innovative treatment is based on research from UTHealth experts Dr. Kyoji Tsuchikama and Dr. Zhiqiang An.

“Our dual-payload ADC technology is designed to deliver synergistic therapeutic effects using highly stable linkers that ensure payload release only within the targeted cancer cells, thereby maximizing their therapeutic effectiveness while minimizing the liabilities associated with uptake in unintended tissues, as seen with many of today’s cancer treatments," Torres continues.

He explains that the funding will toward advancing CrossBridge's first development candidate, CBB-120, into preclinical non-GLP toxicology studies in addition to derisking the company’s proprietary linker technology with dual-payload applications, per the release.

As a result of the raise, William McKeon, president and CEO of the Texas Medical Center, and Damir Illich, manager of life sciences of CE-Ventures, will join CrossBridge Bio’s board of directors.

“We are proud to back CrossBridge Bio in their mission to develop the next generation of cancer therapies,” McKeon says in the release. “Their dual-payload ADCs are designed to deliver targeted drug release within cancer cells with greater stability, precision, and control. These breakthrough advancements have the potential to change patients’ lives worldwide and we look forward to helping drive their development.”

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Portal Innovations announced that Monique Knighten as an executive director in Houston. Photo via LinkedIn

Chicago life science innovation firm names Houston leader

who's who

After announcing its expansion into Houston last summer and opening its office in a new Texas Medical Center building, Portal Innovations has named its Houston leader.

Portal Innovations announced that Monique Knighten as an executive director in Houston in a LinkedIn post this week. She has over 15 years of experience in supporting research scientists and clinicians working to develop therapeutics in labs and clinics. According to her LinkedIn, she's served in the position since November.

Prior to her new role at Portal, Knighten worked as a manager level at Sartorius Stedim in Houston for five years. Before that role, she served as a technical sales consultant in Texas at Miltenyi Biotec, primarily in the immuno-oncology therapeutic market in the TMC.

Portal first announced its expansion into Houston in June of last year.

“Houston is one of the fastest-growing cities in the U.S., and home to one of the world’s leading cancer research institutions, The University of Texas MD Anderson Cancer Center,” Portal’s Founder and CEO John Flavin said at the time. “It’s critical for us to open in Texas and leverage nearby pipelines from Rice University, UTHealth Houston, Texas A&M, University of Houston, Baylor College of Medicine, and others across Houston’s innovative life sciences ecosystem. We’re thrilled to work with TMC to help grow tomorrow’s biotech and medtech leaders.”

Portal's local office is in the Helix Park complex's Collaborative Building, which opened in October. Helix Park is a 37-acre mixed-use campus currently under construction. The institutional agnostic, 250,000-square-foot building will anchor Helix Park and house research initiatives from the four founding partners: Texas Medical Center, The University of Texas MD Anderson Cancer Center, Texas A&M University Health Science Center, and The University of Texas Health Science Center at Houston.

Mayor Sylvester Turner, TMC CEO Bill McKeon, Governor Greg Abbott, and others gave their remarks at the TMC3 Collaborative Building opening. Photo by Natalie Harms

Texas Medical Center opens first building in massive Helix Park project

tmc3

For nearly a decade, the Texas Medical Center and its partners have been working on the plans for Helix Park, a 37-acre campus expansion of TMC. As of this week, the first building has opened its doors to the public.

The TMC3 Collaborative Building officially opened today to a crowd of media, public officials, and health care executives. The institutional agnostic, 250,000-square-foot building will anchor Helix Park and house research initiatives from the four founding partners: Texas Medical Center, The University of Texas MD Anderson Cancer Center, Texas A&M University Health Science Center, and The University of Texas Health Science Center at Houston.

“Today, we lay the cornerstone of a new campus fully dedicated to streamlining the commercialization of life-changing innovations in medicine and technologies,” William McKeon, president and CEO of TMC, says at the event. “We are incredibly excited to both welcome our founding institutions and industry partners to the Collaborative Building and to invite the community to experience the Helix Park campus and its beautiful parks with a series of special events in the months ahead."

Established to be a place for academic institution collaboration, the building — designed by Boston-based Elkus Manfredi Architects — will have wet laboratories, office space, and event facilities. Two venture groups — Portal Innovations and the TMC Venture Fund — will also move into the building.

Each institution will bring in select programs and initiatives. MD Anderson will house two institutions within the new building, including the James P. Allison Institute focused on immunotherapy and the Institute for Data Science in Oncology.

"The future of life sciences in Houston is brighter than ever before as we come together to officially open the TMC3 Collaborative Building,” Dr. Peter WT Pisters, president of MD Anderson, says. “Our clinicians and scientists work daily to advance innovations in cancer research and care – all of which will be amplified in this new environment within Helix Park that further cultivates collaboration, connectivity, and creativity.”

UTHealth will move its Texas Therapeutics Institute into the facility.

“With a shared commitment to improving the health and well-being of individuals and communities, we are bringing together academics and industry to accelerate discovery and medical breakthroughs,” Dr. Giuseppe N. Colasurdo, president and Alkek-Williams Distinguished Chair at UTHealth Houston, says. “Through the Texas Therapeutics Institute — already a signature collaborative enterprise at UTHealth Houston — our world-renowned leaders in therapeutic antibody development will have the opportunity to work closely with other leading researchers in the Texas Medical Center, greatly enhancing our collective ability to translate discoveries and ideas into effective treatments.”

Texas A&M, which has worked with Houston Methodist to develop its engineering medical program, will operate its Texas A&M Health’s Institute of Biosciences and Technology in the new space.

“As we open this state-of-the-art facility, we’re opening the door to a new era of collaboration. This building signifies the dismantling of silos to deliver game-changing therapies for the toughest diseases impacting Texans and citizens worldwide,” said John Sharp, Chancellor of The Texas A&M University System. “Texas A&M Health’s Institute of Biosciences and Technology has long been a trailblazer in drug discovery, and now, in the heart of this resource-rich ecosystem of the Texas Medical Center, we’re taking it up a notch. By positioning our scientists near their peers and esteemed clinicians, we’re igniting a spark that will fuel innovation and forge dynamic research programs.”

The next aspect of Helix Park to deliver will be the Dynamic One, a 700,000-square-foot industry research facility. Several other buildings, including a hotel, residential tower, and mixed-use building, are expected to deliver over the next few years. The "spine" of the project is six linked green spaces, designed by landscape architect Mikyoung Kim, that form an 18.7-acre campus, which is shaped like a DNA helix, hence the project's name.

At the opening event, leaders discussed the annual impact of over $5.4 billion expected after the campus is completed, and the 23,000 permanent new jobs and 19,000 construction jobs anticipated from Helix Park.

"Texas truly is the home of innovation. Our energy innovations are legendary, as are our innovations in space," says Texas Governor Greg Abbott, naming several of the state's innovative accomplishments. "Long before all of this innovation we're seeing now, Texas was the home of the Texas Medical Center."

Mayor Sylvester Turner spoke to the importance of collaboration.

"Individually, you can do things very well. Collectively, you can be transformational," he says. "One thing about this city, collaboration is the key. When we play well together, and when we build an integrated, robust ecosystem, everyone wins. That's Houston, and that's the way we operate."

A venture capital firm specializing in the life science sector revealed its plans to move into Houston. Rendering courtesy of TMC

Life science investment firm announces expansion into Houston

coming soon

A Chicago-based life science investment firm has announced its expansion into Houston.

Portal Innovations released the news today that it will move into 30,000 square feet of lab and office space in Texas Medical Center's new Helix Park complex's Collaborative Building. Helix Park is a 37-acre mixed-use campus currently under construction. The firm is expected to make the move in the secord quarter of next year.

Portal, along with its capital partners Beacon Capital and ZoE Life Sciences, is expanding into Houston to tap into the more than 4,800 biotech companies that are associated with TMC, per a news release.

“Houston is one of the fastest-growing cities in the U.S., and home to one of the world’s leading cancer research institutions, The University of Texas MD Anderson Cancer Center,” says Portal’s Founder and CEO John Flavin in the release. “It’s critical for us to open in Texas and leverage nearby pipelines from Rice University, UTHealth Houston, Texas A&M, University of Houston, Baylor College of Medicine, and others across Houston’s innovative life sciences ecosystem. We’re thrilled to work with TMC to help grow tomorrow’s biotech and medtech leaders.”

For TMC's community, the move means connecting Portal with its network of institutions for mentorship, events, networking, and more.

"TMC has steadily been building an innovation ecosystem in Houston through initiatives like the TMC Venture Fund, our incubator programs, and our global BioBridge relationships," says Bill McKeon, CEO of TMC, in the release. “In Portal, we have a partner with a proven track record of leveraging venture capital funding, expert partners, and strong programming to support dynamic, entrepreneurial businesses at pivotal moments of their growth. We look forward to building on our collective expertise and shared vision to further support the breakthroughs of early-stage life science ventures.”

The TMC3 Collaborative Building is the first completed building expected from the Helix Park development, along with the Dynamic One building anchored by Baylor College of Medicine. Both of which were originally slated to deliver later this year when the project details were revealed in 2022.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.

Cart.com's M&A move, energy innovators recognized, and more top articles from the week

trending news

Editor's note:Let's roundup the most-read Houston innovation news from the week. Trending Houston tech and startup articles from InnovationMap and its daily newsletter included a new health tech grant for Houston researchers, Cart.com's latest acquisition, and more.

Houston med school lands $3.5M grant to rollout genetic telehealth platform for underserved newborns

Baylor College of Medicine received $3.5 million to expand its telehealth platform to improve genomic diagnostics and care for critically ill newborns in underserved neonatal intensive care units in West and South Texas. Photo by Tim Bish on Unsplash

Baylor College of Medicine received $3.5 million to help hospitals in Texas better care for and diagnose some of the state's most vulnerable patients.

The funds come from the National Human Genome Research Institute for the Making Genomics Accessible to Newborns in Texas, or MAGNET, program. They'll be used to adapt BCM's Consultagene telehealth platform to be used in underserved neonatal intensive care units in West and South Texas, according to a statement.

Families in this region of the state currently can travel up to 300 miles to reach the nearest in-state geneticist, according to MAGNET. The program aims to help close that gap through BCM's established remote consultation service. Investigators also plan to create educational videos in English and Spanish to educate providers and patient caregivers on genetic diagnoses.

“Only 20 years ago, less than 3 percent of genetic conditions in newborns could be molecularly diagnosed,” Dr. Brendan Lee, co-principal investigator and professor and chair of the Department of Molecular and Human Genetics and Robert and Janice McNair Endowed Chair in Molecular and Human Genetics at BCM, says in a statement. Continue reading.

Houston e-commerce platform expands logistics network with acquisition of fulfillment operations arm

Cart.com has acquired OceanX, adding two new facilities and expanding its logistics network to enhance efficiency and support high-volume beauty, wellness, and lifestyle brands. Photo courtesy of Cart.com

A Houston e-commerce unicorn has made its latest strategic acquisition.

Cart.com, which operates a multichannel commerce platform, announced that it has acquired Guthy-Renker's wholly-owned fulfillment operations arm OceanX. The terms of the deal were not disclosed. Around 200 OceanX employees will be assumed onto the Cart.com team, and the fast-growing company will add two new facilities totaling over 600,000 square feet to its network, expanding to include a West Coast distribution hub in Southern California and its third facility near Columbus, Ohio.

"Acquiring OceanX is part of Cart.com’s strategy to continue to scale our platform and capabilities across industries, leveraging our proprietary technology to improve efficiency and deliver superior results to our clients and their customers,” Omair Tariq, Cart.com founder and CEO, says in a news release. “By deploying our Constellation OMS and WMS software and seasoned operations team across these two new facilities, we will improve order visibility, labor efficiency, shipping costs and customer satisfaction for the benefit of our new clients.” Continue reading.

3 clean energy innovators make Forbes list of top young energy professionals

Three young professionals have made the cut for this year's Forbes Under 30 list in the Energy and Green Tech list for 2025. Photos via Forbes

A handful of Houstonians have been named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

Kip Daujotas is an investment associate at Aramco Ventures, a $7.5 billion venture capital arm of the world's largest energy company. Houston is the Americas headquarters for Saudi Aramco. Since its inception in 2012, Aramco Ventures has invested in more than 100 tech startups. Daujotas joined the team over two years ago after studying for an MBA at Yale University. He led Aramco’s first direct air capture (DAC) investment — in Los Alamos, New Mexico-based Spiritus.

Also representing the corporate side of the industry, Wenting Gao immigrated from Beijing to obtain an economics degree from Harvard University, then got a job at consulting giant McKinsey, where she recently became the firm’s youngest partner. Gao works on bringing sustainability strategies to energy and materials companies as well as investors. Her areas of expertise include battery materials, waste, biofuels, and low-carbon products.

Last but not least, Houston entrepreneur Rawand Rasheed is co-founder and CEO of Houston-based Helix Earth. He co-founded the startup after earning a doctoral degree from Rice University and co-inventing Helix’s core technology while at NASA, first as a graduate research fellow and then as an engineer. The core technology, a space capsule air filtration system, has been applied to retrofitting HVAC systems for commercial buildings. Continue reading.

Rice University, Houston Methodist launch new institute to revolutionize health care through AI, innovation

Rice University and Houston Methodist have partnered to create the Digital Health Institute, combining advanced technology, artificial intelligence, and interdisciplinary expertise to transform health care. Photos courtesy

Rice University and Houston Methodist have established through a multi-year joint effort the Digital Health Institute, which aims to transform healthcare through advanced technology and the collaborative expertises of the university and hospital.

Rice’s leadership in engineering, digital health and artificial intelligence will combine with Houston Methodist’s academic medicine and research infrastructure.

“This partnership embodies Rice’s bold vision to lead at the forefront of innovation in health and responsible AI,” Rice President Reginald DesRoches says in a news release. “By combining our strengths with Houston Methodist, we are creating a transformative platform to address critical challenges in healthcare with solutions that are ethical, accessible and impactful. This initiative exemplifies our commitment to driving interdisciplinary collaboration and advancing global health for the benefit of humanity.” Continue reading.

2 Houston professors named as fellows for prestigious group of inventors

Omid Veiseh from Rice University and Edward Ratner from the University of Houston have been named 2024 National Academy of Inventors fellows for their innovative contributions. Courtesy photos

The highest professional distinction awarded to academic inventors, the National Academy of Inventors, have elected two fellows from Rice University and the University of Houston for its 2024 class.

Edward Ratner, computer information systems lecturer in the Department of Information Science Technology at the University of Houston’s Cullen College of Engineering, and Omid Veiseh, bioengineer at Rice University and director of the Biotech Launch Pad, were two of the 170 honorees representing 39 states and 12 countries.

The 2024 class will be honored and presented their medals on June 26 in Atlanta, Georgia by a senior official of the U.S. Patent and Trademark Office. Continue reading.

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