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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A research team housed out of the newly launched Rice Biotech Launch Pad received funding to scale tech that could slash cancer deaths in half. Photo via Rice University

Rice researchers score $45M from NIH for cancer-fighting tech

freshly funded

A research funding agency has deployed capital into a team at Rice University that's working to develop a technology that could cut cancer-related deaths in half.

Rice researchers received $45 million from the National Institutes of Health's Advanced Research Projects Agency for Health, or ARPA-H, to scale up development of a sense-and-respond implant technology. Rice bioengineer Omid Veiseh leads the team developing the technology as principal investigator.

“Instead of tethering patients to hospital beds, IV bags and external monitors, we’ll use a minimally invasive procedure to implant a small device that continuously monitors their cancer and adjusts their immunotherapy dose in real time,” he says in a news release. “This kind of ‘closed-loop therapy’ has been used for managing diabetes, where you have a glucose monitor that continuously talks to an insulin pump. But for cancer immunotherapy, it’s revolutionary.”

Joining Veiseh on the 19-person research project named THOR, which stands for “targeted hybrid oncotherapeutic regulation,” is Amir Jazaeri, co-PI and professor of gynecologic oncology at the University of Texas MD Anderson Cancer Center. The device they are developing is called HAMMR, or hybrid advanced molecular manufacturing regulator.

“Cancer cells are continually evolving and adapting to therapy. However, currently available diagnostic tools, including radiologic tests, blood assays and biopsies, provide very infrequent and limited snapshots of this dynamic process," Jazaeri adds. "As a result, today’s therapies treat cancer as if it were a static disease. We believe THOR could transform the status quo by providing real-time data from the tumor environment that can in turn guide more effective and tumor-informed novel therapies.”

With a national team of engineers, physicians, and experts across synthetic biology, materials science, immunology, oncology, and more, the team will receive its funding through the Rice Biotech Launch Pad, a newly launched initiative led by Veiseh that exists to help life-saving medical innovation scale quickly.

"Rice is proud to be the recipient of the second major funding award from the ARPA-H, a new funding agency established last year to support research that catalyzes health breakthroughs," Rice President Reginald DesRoches says. "The research Rice bioengineer Omid Veiseh is doing in leading this team is truly groundbreaking and could potentially save hundreds of thousands of lives each year. This is the type of research that makes a significant impact on the world.”

The initial focus of the technology will be on ovarian cancer, and this funding agreement includes a first-phase clinical trial of HAMMR for the treatment of recurrent ovarian cancer that's expected to take place in the fourth year of THOR’s multi-year project.

“The technology is broadly applicable for peritoneal cancers that affect the pancreas, liver, lungs and other organs,” Veiseh says. “The first clinical trial will focus on refractory recurrent ovarian cancer, and the benefit of that is that we have an ongoing trial for ovarian cancer with our encapsulated cytokine ‘drug factory’ technology. We'll be able to build on that experience. We have already demonstrated a unique model to go from concept to clinical trial within five years, and HAMMR is the next iteration of that approach.”

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Houston company awarded $2.5B NASA contract to support astronaut health and space missions

space health

Houston-based technology and energy solution company KBR has been awarded a $2.5 billion NASA contract to support astronaut health and reduce risks during spaceflight missions.

Under the terms of the Human Health and Performance Contract 2, KBR will provide support services for several programs, including the Human Research Program, International Space Station Program, Commercial Crew Program, Artemis campaign and others. This will include ensuring crew health, safety, and performance; occupational health services and risk mitigation research for future flights.

“This contract reinforces KBR’s leadership in human spaceflight operations and highlights our expertise in supporting NASA’s vision for space exploration,” Mark Kavanaugh, KBR president of defense, intel and space, said in a news release.

The five-year contract will begin Nov. 1 with possible extension option periods that could last through 2035. The total estimated value of the base period plus the optional periods is $3.6 billion, and the majority of the work will be done at NASA’s Johnson Space Center.

“We’re proud to support NASA’s critical work on long-duration space travel, including the Artemis missions, while contributing to solutions that will help humans live and thrive beyond Earth,” Kavanaugh adde in the news release.

Recently, KBR and Axiom Space completed three successful crewed underwater tests of the Axiom Extravehicular Mobility Unit (AxEMU) at NASA's Neutral Buoyancy Laboratory (NBL) at Johnson Space Center. The tests were part of an effort to help both companies work to support NASA's return to the Moon, according to a release.

KBR also landed at No. 3 in a list of Texas businesses on Time and Statista’s new ranking of the country’s best midsize companies.

UH receives $1M grant to advance research on rare pediatric disorder

peds research

The University of Houston has received a two-year, $1.1 million gift from the Cynthia and George Mitchell Foundation to advance research on a rare genetic disorder that can lead to both deafness and blindness in children, known as Usher Syndrome.

The current grant will support the research of UH biomedical engineering professors Muna Naash and Muayyad Al-Ubaidi, who work in the Laboratory for Retinal Molecular and Cellular Biology and Gene Therapy in the Cullen College of Engineering. The professors have published their findings in the journal Nature Communications.

Naash and Al-Ubaidi’s research focuses on mutations in the USH2A gene, which is crucial to the development and maintenance of the inner ear and retina. The work was inspired by a chance meeting that changed Naash’s life.

“Our work began more than two decades ago when I met a young boy who had lost his both his vision and hearing, and it made me realize just how precious those two senses are, and it truly touched my heart,” Naash said in a news release from UH. “Thanks to the generosity of the Cynthia and George Mitchell Foundation, we can now take the next critical steps in our research and bring hope to families affected by this challenging condition.”

The grant from the foundation comes in addition to a previous $1.6 million award from the National Eye Institute in 2023, which helped create a research platform for innovative gene therapy approaches for the condition.

Usher Syndrome affects 25,000 people in the U.S. and is the most common genetic condition worldwide that impacts both hearing and vision in children. Currently, there is no cure for any of the main three types of the condition. UH believes support from the Cynthia and George Mitchell Foundation will help elevate research, advance real-world solutions in health and improve lives.

“What makes UH such a powerful hub for research is not just its own resources, but also its location and strategic partnerships, including those with the Texas Medical Center,” Al-Ubaidi said in a news release. “We have access to an extraordinary network, and that kind of collaborative environment is essential when tackling complex diseases like Usher syndrome, where no single lab can do it alone.”

Members-only coworking club Switchyards to open first Houston location

Where to Work

An innovative take on the coworking space is coming to Houston. Switchyards will open its first location in the Bayou City on Monday, September 29.

Located in the former Buffalo Exchange at 2901 S Shepherd Drive, Switchyards is well located on the border of Montrose, River Oaks, and Upper Kirby. Founded in Atlanta, the Houston location will join 30 outposts in cities such as Austin, Dallas, Denver, Kansas City, and Nashville.

Unlike WeWork, which caters to companies looking for office space for groups of employees, Switchyards pitches itself as a club for individuals who want to get a little work done away from their home offices.

“Working from home all the time is pretty lonesome,” Switchyards creative director Brandon Hinman says. “It feels good to have places to get out and mix it up. To change paces and change scenery.”

Switchyards facilitates that change of scenery with an environment that blends touches of hotel lobbies, college libraries, and coffee shops. As seen in the photos of the company’s other location, the furniture is a mix of desks, comfy chairs, and couches for individuals or small groups. It’s a far cry from the cube farms of the Office Space era.

“They tend to be historic, textured, layered,” Hinman says about the company’s locations. “A lot of really good furniture. Really thoughtful for getting a couple hours of work done.”

Each location features fast wi-fi, plenty of electrical outlets, and good quality coffee and tea. All 250 members have 24/7 access to the space. And by choosing the real estate they lease carefully, Switchyards keeps its membership price to $100 per month.

“Packaging it together like that and opening in these neighborhoods where people actually live has been pretty magical,” Hinman says. "The big opportunity, I think, is that 90 percent of our members have never had a shared space before. It is unlocking a new thing for people.”

Those who are interested in learning more can sign up at switchyards.com/houston-tx to get early access to memberships and an invite to a sneak peek party.

Memberships go on sale Thursday, September 25 at 10 am. Switchyards notes that the last 14 clubs have sold out on day one.

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This story originally appeared on CultureMap.com.

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