New Houston biotech co. developing capsules for hard-to-treat tumors

biotech breakthroughs

Sentinel BioTherapeutics is developing cytokine interleukin-2 (IL-2) capsules to fight many solid tumors. Photo via Getty Images.

Houston company Sentinel BioTherapeutics has made promising headway in cancer immunotherapy for patients who don’t respond positively to more traditional treatments. New biotech venture creation studio RBL LLC (pronounced “rebel”) recently debuted the company at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago.

Rima Chakrabarti is a neurologist by training. Though she says she’s “passionate about treating the brain,” her greatest fervor currently lies in leading Sentinel as its CEO. Sentinel is RBL’s first clinical venture, and Chakrabarti also serves as cofounder and managing partner of the venture studio.

The team sees an opportunity to use cytokine interleukin-2 (IL-2) capsules to fight many solid tumors for which immunotherapy hasn't been effective in the past. “We plan to develop a pipeline of drugs that way,” Chakrabarti says.

This may all sound brand-new, but Sentinel’s research goes back years to the work of Omid Veiseh, director of the Rice Biotechnology Launch Pad (RBLP). Through another, now-defunct company called Avenge Bio, Veiseh and Paul Wotton — also with RBLP and now RBL’s CEO and chairman of Sentinel — invested close to $45 million in capital toward their promising discovery.

From preclinical data on studies in mice, Avenge was able to manufacture its platform focused on ovarian cancer treatments and test it on 14 human patients. “That's essentially opened the door to understanding the clinical efficacy of this drug as well as it's brought this to the attention of the FDA, such that now we're able to continue that conversation,” says Chakrabarti. She emphasizes the point that Avenge’s demise was not due to the science, but to the company's unsuccessful outsourcing to a Massachusetts management team.

“They hadn't analyzed a lot of the data that we got access to upon the acquisition,” explains Chakrabarti. “When we analyzed the data, we saw this dose-dependent immune activation, very specific upregulation of checkpoints on T cells. We came to understand how effective this agent could be as an immune priming agent in a way that Avenge Bio hadn't been developing this drug.”

Chakrabarti says that Sentinel’s phase II trials are coming soon. They’ll continue their previous work with ovarian cancer, but Chakrabarti says that she also believes that the IL-2 capsules will be effective in the treatment of endometrial cancer. There’s also potential for people with other cancers located in the peritoneal cavity, such as colorectal cancer, gastrointestinal cancer and even primary peritoneal carcinomatosis.

“We're delivering these capsules into the peritoneal cavity and seeing both the safety as well as the immune activation,” Chakrabarti says. “We're seeing that up-regulation of the checkpoint that I mentioned. We're seeing a strong safety signal. This drug was very well-tolerated by patients where IL-2 has always had a challenge in being a well-tolerated drug.”

When phase II will take place is up to the success of Sentinel’s fundraising push. What we do know is that it will be led by Amir Jazaeri at MD Anderson Cancer Center. Part of the goal this summer is also to create an automated cell manufacturing process and prove that Sentinel can store its product long-term.

“This isn’t just another cell therapy,” Chakrabarti says.

"Sentinel's cytokine factory platform is the breakthrough technology that we believe has the potential to define the next era of cancer treatment," adds Wotton.

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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

2 Houston professors named as fellows for prestigious group of inventors

top innovators

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.

Ratner’s research includes artificial intelligence, machine learning, image analysis, video compression and video streaming, and has led to 40 patents currently. His inventions on adaptive video streaming assists the technology used today for streaming video over the internet. Ratner becomes the 40th UH faculty who is either a fellow or senior member of the NAI.

“Ed Ratner’s recognition as a Fellow of the NAI is a testament to his exceptional creativity, dedication and impact in advancing innovation,” Ramanan Krishnamoorti, vice president of energy and innovation at UH, says in a news release. “Here at the University of Houston, we take great pride in fostering a culture where visionary thinkers like Ed can thrive. This honor reflects not only his remarkable achievements but also the University’s commitment to shaping the future through groundbreaking research and invention.”

Veiseh is a current professor of bioengineering, a Cancer Prevention and Research Institute of Texas Scholar and faculty director of the Rice Biotech Launch Pad, which is a Houston-based accelerator that focuses on “expediting the translation of the university’s health and medical technology discoveries into cures,” according to a news release from Rice.

His research focuses on developing innovative treatments that involve combining synthetic biology, molecular engineering and advanced materials science. He also helped lead a $45 million project funded by the Advanced Research Projects Agency for Health (ARPA-H) to create implantable cancer monitoring and treatment devices.

“It is our mission to make sure that scientific and technological advancements are translated from laboratory discoveries into life-saving cures and products that have a real and enduring impact on patients’ lives,” said Veiseh in a news release. “I am honored to be recognized by this distinguished award and would like to thank my collaborators at Rice and elsewhere for working toward this shared goal of improving lives through better, more effective treatments.”

2023, UH’s Vincent Donnelly, Moores professor of Chemical and Biomolecular Engineering, and Christine Ehlig-Economides, Hugh Roy and Lillie Cranz Cullen Distinguished university chair of Petroleum Engineering, all received the Fellows honor. Other 2024 Texas-based fellows include Malcom Brenner from Baylor College of Medicine, Maria Croyle from The University of Texas at Austin, Jaime Grunlan from Texas A&M University, and more.

Rice University opens biotech venture studio in TMC

rapidly scaling

In its mission to amplify and advance biotech innovation, Rice University has announced its latest initiative — a new lab focused on bringing life-saving medical technologies to commercialization.

Established to rapidly build companies based on Rice University's portfolio of over 100 patents, RBL LLC is a new biotech venture creation studio based in Texas Medical Center Helix Park. RBL comes on the heels of establishing the Rice Biotech Launch Pad, a biotech innovation accelerator that opened last year.

Paul Wotton, executive director of the Rice Biotech Launch Pad, co-founded RBL with his colleagues Omid Veiseh, Rice professor of bioengineering and faculty director of the Rice Biotech Launch Pad; Jacob Robinson, Rice professor of electrical and computer engineering; and Dr. Rima Chakrabarti, a physician scientist and venture capital investor with KdT Ventures.

“This is a pivotal moment for Houston and beyond,” Wotton, who serves as RBL’s managing partner, says in a news release from Rice. “Houston has rapidly emerged as a global life sciences powerhouse, blending cutting-edge research with early clinical applications at Rice and the city’s world-renowned hospital systems.

"Investors from across the nation are recognizing Houston’s potential, and with RBL, we’re building on that momentum," he continues. "We’ll not only amplify the work of the Rice Biotech Launch Pad but expand our reach across Texas, creating opportunities for biotech ventures statewide and driving growth for the biotech industry as a whole.”

Strategically located in TMC, RBL will collaborate with medical leaders, investors, corporations, and other players both in the same building and on the greater TMC campus.

“Leveraging Rice University’s Biotech Launch Pad breakthroughs and pairing it with the world-class translational infrastructure of TMC Helix Park well positions RBL to drive unprecedented advances in patient care,” William McKeon, president and CEO of the TMC, says in the release. “This partnership between academia, industry and health care is exactly what’s needed to transform medical discoveries into real-world solutions that improve lives globally.”

RBL is Rice's latest effort to bridge the gap between academia and biotech innovation, an effort led by Paul Cherukuri, Rice’s chief innovation officer, who reportedly spearheaded development of the new initiative.

“RBL is a game-changer for Rice, Houston and the global biotech community,” Cherukuri adds. “This venture not only accelerates the commercialization of our innovations but also sets a blueprint for other universities looking to maximize the real-world impact of their discoveries. By combining scientific expertise with entrepreneurial support from Day Zero together with strategic clinical partnerships in the TMC, we’re creating a model for driving large-scale biotech innovation that universities everywhere should aspire to replicate.”

Since the Rice Biotech Launch Pad was established, Motif Neurotech closed its series A round with an oversubscribed $18.75 million, the hub secured a $34.9 million grant, and a “living pharmacy” founded at the Launch Pad received industry validation.

“RBL provides a powerful platform to translate high-impact scientific discoveries into therapies that will dramatically improve patient outcomes,” Veiseh says. “Our goal is to rapidly bring Rice’s pioneering research into the clinic, delivering life-saving solutions to patients around the world.”

Rice’s Biotech Launch Pad will lead the effort to commercialize the device. Photo courtesy Rice University

Rice researchers secure $35M federal grant to advance medical device technology

big money

Rice University has secured part of a nearly $35 million federal grant aimed at commercializing a bioelectric implant for treatment of type 2 diabetes and obesity.

The federal Advanced Research Projects Agency for Health awarded the $34.9 million grant to Rice and several other universities.

Rice’s Biotech Launch Pad will lead the effort to commercialize the self-contained, implantable Rx On-site Generation Using Electronics (ROGUE) device. ROGUE houses cells that are engineered to produce type 2 diabetes and obesity therapies in response to patients’ needs.

Carnegie Mellon University leads the team of researchers handling development and testing of ROGUE, which acts as a “living pharmacy” designed to make biologic drugs available on demand in a patient’s body.

The ROGUE initiative aims to keep the cost of this treatment significantly below the cost of other biologics-based treatments.

“ROGUE’s innovative design combines efficient biological manufacturing, long-term durability, and patient-friendly features that have the potential to transform the landscape of biologics delivery,” Omid Veiseh, professor of bioengineering and faculty director of the Rice Biotech Launch Pad, says in a news release.

Paul Wotton, an in-house entrepreneur at the university and executive director of the Rice accelerator, is helping guide ROGUE toward becoming an independent company.

“With the Biotech Launch Pad, our goal is venture creation in parallel to the groundbreaking research at Rice and its collaborating institutions,” Wotton says.

Omid Veiseh is professor of bioengineering and faculty director of the Rice Biotech Launch Pad. Photo courtesy Rice University

The two new awardees are LymphGuide and HEXASpec, which were selected from 26 applications. Each company received an $100,000 grant. Photo courtesy of The Ion

2 lab-stage Houston startups receive fresh funding from Rice University grant program

cashing in on innovation

Rice University has doled out another batch of grants from its program supporting lab-based innovations.

The One Small Step Grant, which was announced a year ago and gave out its first grants in February, was established to fund Rice-founded, lab-stage projects on their path to commercialization

“The One Small Step Grant invites applications from students and faculty who are tackling some of the world’s most pressing challenges and preparing to bring their innovative technologies to market,” Nafisa Istami, innovation manager at Rice, says in a news release. “We received highly competitive applications from across campus, truly showcasing the growing momentum of technology innovation happening at Rice.”

The two new awardees are LymphGuide and HEXASpec, which were selected from 26 applications. Each company received an $100,000 grant.

LymphGuide was developed by Martha Fowler in Rice professor Omid Veiseh’s lab. The hydrogel platform is a customizable alginate that's combined with an engineered cell therapy to aid in lymphatic cell regrowth, initially targeting the treatment and prevention of lymphedema.

"We are profoundly grateful to the One Small Step Grant for supporting our vision to treat lymphedema,” says Martha Fowler, cofounder of LymphGuide. “This funding will propel our biotechnology into pre-clinical evaluation to make a meaningful impact in scientific research and for people suffering from lymphatic disease.” Fowler is also an active contributor in the Rice entrepreneurship ecosystem and an Liu Idea Lab of Innovation and Entrepreneurship Innovation Fellows Cohort 2 member.

Led by by Tianshu Zhai in Rice professor Jun Lou’s lab, HEXASpec develops inorganic fillers and molding compounds for next-generation chip packaging. Zhai is also one of the Liu Idea Lab of Innovation and Entrepreneurship Innovation Fellows.

“We are thrilled to receive the One Small Step Grant from Rice Innovation,” says Tianshu Zhai, cofounder of HEXASpec. “This support is crucial for advancing HEXASpec and signifies the strong backing of the Rice entrepreneurship community. We’re grateful for the opportunity to develop our technology with such robust support.”

The next round of grant opportunities will open next month with an online application process.

“The One Small Step Grant program is a demonstration of Rice’s commitment to supporting the commercialization of Rice technologies,” says Adrian Trömel, associate vice president of Innovation Strategy and Investments. “Each cycle further highlights the impactful work of Rice students and faculty to solve global problems across industries.”

“This breakthrough technology has the potential to reshape the landscape of disease treatment and the future of research and development in the field of cell-based therapies." Photo via Getty Images

Rice lab cooks up breakthrough 'living pharmacy' research for potential cell therapy treatment

biotech innovation

Rice University’s Biotech Launchpad has created an electrocatalytic on-site oxygenator, or ecO2, that produces oxygen intended to keeps cells alive. The device works inside an implantable “living pharmacy,” which the Rice Biotech Launch Pad team believes will one day be able to administer and regulate therapeutics within a patient’s body.

Last week, Rice announced a peer-reviewed publication in Nature Communications detailing the development of the novel rechargeable device. The study is entitled “Electrocatalytic on-site oxygenation for transplanted cell-based-therapies.”

How will doctors use the “living pharmacy?” The cell-based therapies implanted could treat conditions that include endocrine disorders, autoimmune syndromes, cancers and neurological degeneration. One major challenge standing in the way of bringing the technology beyond the theoretical has been ensuring the survival of cells for extended periods, which is necessary to create effective treatments. Oxygenation of the cells is an important component to keeping them alive and healthy and the longer they remain so, the longer the therapeutics will be helpful.

Other treatments to deliver oxygen to cells are ungainly and more limited in terms of oxygen production and regulation. According to Omid Veiseh, associate professor of bioengineering and faculty director of the Rice Biotech Launch Pad, oxygen generation is achieved with the ecO2 through water splitting that is precisely regulated using a battery-powered, wirelessly controlled electronic system. New versions will have wireless charging, which means it could last a patient’s entire lifetime.

“Cell-based therapies could be used for replacing damaged tissues, for drug delivery or augmenting the body’s own healing mechanisms, thus opening opportunities in wound healing and treatments for obesity, diabetes and cancer, for example. Generating oxygen on site is critical for many of these ‘biohybrid’ cell therapies: We need many cells to have sufficient production of therapeutics from those cells, thus there is a high metabolic demand. Our approach would integrate the ecO2 device to generate oxygen from the water itself,” says Jonathan Rivnay of Northwestern University, who co-led the study with Tzahi Cohen-Karni of Carnegie Mellon University (CMU).

The study’s co-first authors are Northwestern’s Abhijith Surendran and CMU’s Inkyu Lee.

Northwestern leads the collaboration with Rice to produce therapeutics onsite within the device. The research supports a Defense Advanced Research Projects Agency (DARPA) cooperative agreement worth up to $33 million to develop the implantable “living pharmacy” to control the human body’s sleep and wake cycles.

“This breakthrough technology has the potential to reshape the landscape of disease treatment and the future of research and development in the field of cell-based therapies. We are working toward advancing this technology into the clinic to bring it one step closer to those in need,” says Veiseh.

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Houston foundation doles out $700K for Texas chemical research

fresh funding

Houston-based The Welch Foundation has issued $700,000 in additional funding to support chemical research through two of its newest grant programs.

The foundation has named the recipients of its Welch eXperimental (WelchX) Collaboration Retreat and Pilot Grants and the Welch Postdoctoral Fellows of the Life Sciences Research Foundation Grants.

The WelchX grants were awarded to teams of two Texas researchers who presented "innovative and collaborative ideas" addressing challenges in the clean energy space, according to the foundation.

Researchers from Texas universities gathered in Houston earlier this summer to discuss the theme “Chemical Research for Grand Challenges." They then paired off into nine teams and submitted proposals for the $100,000 pilot grants. The seven selected teams, several with ties to Houston, and their research topics include:

Yimo Han, Rice University, and Yuanyue Liu, The University of Texas at Austin, “Stabilizing Copper Electrocatalysts for CO2 Conversion”
Ognjen Miljanic, University of Houston, and Indrajit Srivastava, Texas Tech University, “Ping-Pong' Afterglow Luminescence in Self-Assembled Molecular Cubes”
Raúl Hernández Sánchez, Rice University, and Andy Thomas, Texas A&M University, “Accelerating Magnetic Resonance Imaging Contrast Agent Discovery via Rapid Injection NMR: Improving the Detection of Lithium for Disease Diagnostics”
Benjamin Janesko, Texas Christian University, and MD Masud Rana, Lamar University, “Cyber Twin Chemical Ensembles for Near-Infrared-Emitting Graphene Quantum Dot Therapeutics”
Ivan Korendovych, Baylor University, and Dino Villagrán, The University of Texas at El Paso, “Selective Bio-Inspired Electrochemical Probes for PFAS Analysis and Degradation”
Samantha Kristufek, Texas Tech University, and Kayla Green, Texas Christian University, “CIRCUIT: Critical Ion Recovery using Conductive and Ultrafiltration Intelligent Technology”
Fang Xu, The University of Texas at San Antonio, and Hong Wang, University of North Texas, “Visualize Molecular Adsorption on Supported Ni-porphyrin Model Catalysts via Substitute Effect”

The Welch Postdoctoral Fellows of the Life Sciences Research Foundation provides three-year fellowships to recent PhD graduates to support clinical research careers in Texas.

The foundation previously announced that it would name fellows from Rice University and Baylor University who would receive $100,000 annually for three years. This year's recipients and their research topics include:

Teng Yuan, Rice University, “Unlocking New Chemistry of Nonheme Iron Enzymes for α-Amino Acids and γ-Lactones Synthesis”
Katelyn Baumler, Baylor University, "Crystal Growth of Ln2Fe4Sb5 Phases Toward the Study of Novel Quantum Properties”

“As these programs become more established, it is thrilling to see the new research our awardees are exploring,” Adam Kuspa, president of The Welch Foundation, said in a news release. “The Foundation is very pleased by the applications that we continue to receive describing exciting new research projects to advance chemical research.”

This additional funding comes on the heels of the foundation doling out $27 million for chemical research, equipment and postdoctoral fellowships earlier this summer. The foundation made 85 grants to faculty at 16 Texas institutions at the time. Read more here.

How a Houston company is fighting anxiety, insomnia & Alzheimer’s through waveforms

mental health

A Houston-based company is taking a medicine-free approach to target brain neurologically associated with mental illness.

Nexalin Technology’s patented, FDA-cleared frequency-based waveform targets key centers of the midbrain to support the normalization of neurochemicals through a process known as Transcranial Alternating Current Stimulation (tACS). Delivered via a non-invasive device, the treatment gently stimulates the hypothalamus and midbrain, helping to “reset networks associated with symptoms” of anxiety and insomnia. Early clinical evidence suggests this approach can promote healthier brain function and improved sleep.

Through its recently appointed scientific advisory board (SAB), Nexalin also aims to target Alzheimer’s disease with a clinical development pipeline supported by published data and internal data from studies involving its proprietary DIFS technology. Nexalin’s Gen-2 SYNC and Gen-3 Halo headset delivers the DIFS, which is a waveform that can penetrate deep brain structures implicated in cognitive decline and mental illness.

The board includes experts in neurology, neuroimaging and neurodegenerative diseases with Dr. Mingxiong Huang, Dr. David Owens, and Dr. Abe Scheer coming on board. Nexalin plans to initiate new Alzheimer’s-focused clinical studies in the Q3 2025 by incorporating cognitive testing, imaging biomarkers, and guided metrics to assess treatment efficacy and neural activation.

“I am excited to work alongside Nexalin’s leadership and fellow SAB members to help guide the next generation of non-invasive neuromodulation therapies,” Huang said in a news release. “The intersection of neuroimaging, brain stimulation, and clinical science holds enormous potential for treating neurodegenerative disease.”

Recently, Nexalin’s proprietary neurostimulation device moved forward with a clinical trial that evaluated its treatment of anxiety disorders and chronic insomnia in Brazil. The first of Nexalin’s Gen-2 15-milliamp neurostimulation devices was shipped to São Paulo, Brazil, and the study will be conducted at the Instituto de Psiquiatria University Hospital (IPq-HCFMUSP). The shipments aim to support the launch of a Phase II clinical trial in adult patients suffering from anxiety and insomnia. The Nexalin Gen-2 15-milliamp neurostimulation device has also been approved in China, Brazil and Oman. Its Gen 1 device first received FDA clearance in 2003, according to the company's website.

The company also enrolled the first patients in its clinical trial at the University of California, San Diego, in collaboration with the VA San Diego Healthcare System for its Nexalin HALO, which looks to treat mild traumatic brain injury and post-traumatic stress disorder in military personnel and the civilian population.

Nexalin previously raised $5 million through a

public stock offering.

Houston innovation hub announces first cohort for energy-focused accelerator

Powering Up

Energytech Nexus, a Houston-based hub for energy startups, has named its inaugural cohort of 14 companies for the new COPILOT accelerator.

COPILOT partners with Browning the Green Space, a nonprofit that promotes diversity, equity and inclusion (DEI) in the clean energy and climatech sectors. The Wells Fargo Innovation Incubator (IN²) at the National Renewable Energy Laboratory backs the COPILOT accelerator.

The eight-month COPILOT program offers mentorship, training and networking for startups. Program participants will be tasked with developing pilot projects for their innovations.

Two Houston startups are members of the first COPILOT class:

GeoFuels, housed at Houston’s Greentown Labs, has come up with a novel approach to hydrogen production that relies on geothermal power and methane decomposition.
PolyQor, which converts plastic waste into eco-friendly construction materials. Its flagship EcoGrete product is an additive for concrete that enhances its properties while reducing carbon emissions. PolyQor’s headquarters is at Houston’s Greentown Labs.

Other members of the COPILOT cohort are:

Birmingham, Alabama-based Accelerate Wind, developer of a wind turbine for commercial buildings.
Ann Arbor, Michigan-based Aquora Biosystems, which specializes in organic waste biorefineries.
Phoenix-based EarthEn Energy, a developer of technology for thermo-mechanical energy storage.
New York City-based Electromaim, which installs small hydro-generators in buildings’ water systems.
Chandler, Arizona-based EnKoat, an advanced materials company whose flagship product, the IntelliKoat System, is a patented two-layer thermal and weather barrier roof coating for flat and low-slope commercial buildings.
Calgary, Canada-based Harber Coatings, which manufactures electroless nickel coating and electroless nickel plating.
Dallas-based Janta Power, which designs and makes 3D solar towers.
Miami-based NanoSieve, a developer of gas remediation technology.
Palo Alto, California-based Popper Power, which has developed a platform that turns streetlight networks into resilient, maintenance-free distributed charging infrastructure.
Buffalo, New York-based Siva Powers America, developer of small wind turbines for farms, utility companies and others with annual energy needs of 300,000 to 2 million kilowatt-hours.
Los Angeles-based Thermoshade, which specializes in cooling panels for outdoor environments.
Waukesha, Wisconsin-based V-Glass, Inc., developer of a vacuum-insulated glass for affordable high-efficiency windows.

“These startups reflect the future of energy access and resilience innovation,” said Juliana Garaizar, founding partner of Energytech Nexus. “By connecting them directly with partners through COPILOT, we’re helping them overcome the ‘pilot gap’ to build solutions that scale.”

The startups will run pilot projects along the Gulf Coast for their inventions.

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