Researchers from Baylor College of Medicine and the University of Houston have developed a new blood-filtering machine that poses fewer risks to pediatric patients with hyperleukocytosis. Photo courtesy UH.

A team of Houston researchers has developed a new microfluidic device aimed at making treatments safer for children with hyperleukocytosis, a life-threatening hematologic emergency often seen in patients with leukemia.

Dr. Fong Lam, an associate professor of pediatrics at Baylor College of Medicine and a pediatric intensive care physician at Texas Children’s Hospital, partnered with Sergey Shevkoplyas, a professor of biomedical engineering at UH, on the device that uses a large number of tiny channels to quickly separate blood cells by size in a process called controlled incremental filtration, according to a news release from UH.

They tested whether performing cell separation with a high-throughput microfluidic device could alleviate the limitations of traditional conventional blood-filtering machines, which pose risks for pediatric patients due to their large extracorporeal volume (ECV), high flow rates and tendency to cause significant platelet loss in the patient. The results of their study, led by Mubasher Iqbal, a Ph.D. candidate in biomedical engineering at UH, were published recently in the journal Nature Communications.

“Continuously and efficiently separating leukocytes from recirculating undiluted whole blood — without device clogging and cell activation or damage — has long been a major challenge in microfluidic cell separation,” Shevkoplyas said in a news release. “Our study is the first to solve this problem.”

Hyperleukocytosis is a condition that develops when the body has an extremely high number of white blood cells, which in many cases is due to leukemia. According to the release, up to 20 percent to 30 percent of patients with acute leukemia develop hyperleukocytosis, and this places them at risk for potentially fatal complications.

The new device utilizes tiny channels—each about the width of a human hair—to efficiently separate blood cells through controlled incremental filtration. According to Lam, the team was excited that the new device could operate at clinically relevant flow rates.

The device successfully removed approximately 85 percent of large leukocytes and 90 percent of leukemic blasts from undiluted human whole blood without causing platelet loss or other adverse effects. It also operates with an ECV that’s about 1/70th of conventional leukapheresis machines, which makes it particularly suitable for infants and small children.

“Overall, our study suggests that microfluidics leukapheresis is safe and effective at selectively removing leukocytes from circulation, with separation performance sufficiently high to ultimately enable safe leukapheresis in children,” Shevkoplyas said in the release.

A team of researchers at the University of Houston is working to develop a new treatment for Rhabdomyosarcoma, an aggressive cancer with a higher incidence in young children. Photo via Getty Images.

UH research team receives grant to fight aggressive pediatric cancer

cancer research

Researchers at the University of Houston have received a $3.2 million grant from the National Institutes of Health to help find innovative ways to treat Rhabdomyosarcoma, or RMS.

According to a statement from the university, RMS is a malignant soft tissue sarcoma that has a higher incidence in young children and is responsible for 8 percent of pediatric cancer cases with a relatively low survival rate.

One way UH is working on the issue is by studying how and why RMS cells, which are found most often in muscle tissue, divide uncontrollably without ever maturing into normal muscle cells. The researchers aim to tackle a target inside RMS cells known as TAK1, which plays a key role in regulating cell growth.

“By targeting TAK1, we aim to stop the cancer at its source and help the cells develop normally,” Ashok Kumar, the Else and Philip Hargrove Endowed Professor of Drug Discovery at the UH College of Pharmacy and director of the Institute of Muscle Biology and Cachexia, said in a news release. “This approach could lead to new and better treatments for RMS.”

According to UH, preliminary results demonstrated that TAK1 is highly activated in embryonal RMS cells, which are found in younger children; alveolar RMS cells, which are found in older children and teens; and human RMS samples. This suggests that the protein plays a major role in the development of this form of cancer.

The team still aims to uncover how the protein helps RMS cancer grow and plans to evaluate how blocking TAK1 can be used as a therapeutic.

“Blocking TAK1, either by changing the genes (genetic approaches) or using drugs (pharmacological approaches), can stop certain harmful behaviors in cancer cells,” Kumar added. “This was tested both in lab-grown cells and in living models, showing that TAK1 is a key target to control RMS cancer’s spread and aggressiveness, and inhibits tumor formation.”

Allterum Therapeutics Inc., a portfolio company of Fannin Innovation Studio, is using the funds to prepare for clinical trials. Photo via Getty Images

Houston biotech startup raises millions to battle pediatric cancer

fresh funds

Allterum Therapeutics Inc. has built a healthy launchpad for clinical trials of an immunotherapy being developed to fight a rare form of pediatric cancer.

The Houston startup recently collected $1.8 million in seed funding through an investor group associated with Houston-based Fannin Innovation Studio, which focuses on commercializing biotech and medtech discoveries. Allterum has also brought aboard pediatric oncologist Dr. Philip Breitfeld as its chief medical officer. And the startup, a Fannin spinout, has received a $2.9 million grant from the Cancer Prevention Research Institute of Texas.

The funding and Breitfeld's expertise will help Allterum prepare for clinical trials of 4A10, a monoclonal antibody therapy for treatment of cancers that "express" the interleukin-7 receptor (IL7R) gene. These cancers include pediatric acute lymphoblastic leukemia (ALL) and some solid-tumor diseases. The U.S. Food and Drug Administration (FDA) has granted "orphan drug" and "rare pediatric disease" designations to Allterum's monoclonal antibody therapy.

If the phrase "monoclonal antibody therapy" sounds familiar, that's because the FDA has authorized emergency use of this therapy for treatment of COVID-19. In early January, the National Institute of Allergy and Infectious Diseases announced the start of a large-scale clinical trial to evaluate monoclonal antibody therapy for treatment of mild and moderate cases of COVID-19.

Fannin Innovation Studio holds exclusive licensing for Allterum's antibody therapy, developed at the National Cancer Institute. Aside from the cancer institute, Allterum's partners in advancing this technology include the Therapeutic Alliance for Children's Leukemia, Baylor College of Medicine, Texas Children's Hospital, Children's Oncology Group, and Leukemia & Lymphoma Society.

Although many pediatric patients with ALL respond well to standard chemotherapy, some patients continue to grapple with the disease. In particular, patients whose T-cell ALL has returned don't have effective standard therapies available to them. Similarly, patients with one type of B-cell ALL may not benefit from current therapies. Allterum's antibody therapy is designed to effectively treat those patients.

Later this year, Allterum plans to seek FDA approval to proceed with concurrent first- and second-phase clinical trials for its immunotherapy, says Dr. Atul Varadhachary, managing partner of Fannin Innovation Studio, and president and CEO of Allterum. The cash Allterum has on hand now will go toward pretrial work. That will include the manufacturing of the antibody therapy by Japan's Fujifilm Diosynth Biotechnologies, which operates a facility in College Station.

"The process of making a monoclonal antibody ready to give to patients is actually quite expensive," says Varadhachary, adding that Allterum will need to raise more money to carry out the clinical trials.

The global market for monoclonal antibody therapies is projected to exceed $350 billion by 2027, Fortune Business Insight says. The continued growth of these products "is expected to be a major driver of overall biopharmaceutical product sales," according to a review published last year in the Journal of Biomedical Science.

One benefit of these antibody therapies, delivered through IV-delivered infusions, is that they tend to cause fewer side effects than chemotherapy drugs, the American Cancer Society says.

"Monoclonal antibodies are laboratory-produced molecules engineered to serve as substitute antibodies that can restore, enhance or mimic the immune system's attack on cancer cells. They are designed to bind to antigens that are generally more numerous on the surface of cancer cells than healthy cells," the Mayo Clinic says.

Varadhachary says that unlike chemotherapy, monoclonal antibody therapy takes aim at specific targets. Therefore, monoclonal antibody therapy typically doesn't broadly harm healthy cells the way chemotherapy does.

Allterum's clinical trials initially will involve children with ALL, he says, but eventually will pivot to children and adults with other kinds of cancer. Varadhachary believes the initial trials may be the first cancer therapy trials to ever start with children.

"Our collaborators are excited about that because, more often than not, the cancer drugs for children are ones that were first developed for adults and then you extend them to children," he says. "We're quite pleased to be able to do something that's going to be important to children."

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Houston startup lands $10M to power up electrician staffing platform

money moves

Houston-based Buildforce, which provides a tech-enabled staff platform geared toward electricians and electrical contractors, has raised a $10 million Series A round led by Houston’s Saepio Capital.

Other investors in the round include Blue Heron Capital, Revolution’s Rise of the Rest Seed Fund, S3 Ventures and Chicago Ventures.

Buildforce says the funding will help fuel its national expansion and further development of its technology.

The startup, founded in 2019, connects electricians with electrical contractors for commercial and industrial construction projects. Buildforce’s mobile app helps electricians find and carry out work, and a web app helps electrical contractors find and manage electricians.

“This financing is a major milestone in furthering our mission to help people dedicated to a career in the construction trades lead more secure and fulfilling lives,” co-founder and CEO Moody Heard said in a news release.

Buildforce focuses solely on the electrical trade within the construction sector.

Nick Graziano, principal at Blue Heron, says the shortage of electricians is intensifying as demand for electricians accelerates, driven by data center construction, infrastructure development and energy transition initiatives.

The U.S. Bureau of Labor Statistics estimates the U.S. will need to hire about 80,000 new electricians per year through 2032 to catch up with demand. According to the National Electrical Contractors Association, the U.S. is grappling with a current shortage of 50,000 electricians.

A 2026 economic report from asset manager BlackRock says the electrical trade is expected to be the single fastest-growing employment category in the U.S. labor market over the next 10 years.

“Buildforce is capitalizing on a clear opportunity in America’s generational infrastructure buildout. We believe their mission to use technology to improve lives in the construction space will allow them to make a positive long-term impact on a large and important labor market,” added Jaan Bains, managing partner at Saepio Capital.

Venus Aerospace adds government, C-suite leaders following $91M raise​

new leaders

Fresh off its $91 million Series B, Houston-based Venus Aerospace has made several key additions and promotions to its leadership team.

The company says its expanded team will help it deploy its high-thrust rotating detonation rocket engine (RDRE), which completed its first U.S. flight test last summer.

"We flew the world's first high-thrust RDRE in just over four years on $80 million. We believe that makes it the fastest, most capital-efficient rocket engine program in history," Sassie Duggleby, co-founder and CEO of Venus Aerospace, said in a news release. "Adding this talent to our leadership team is how we bring that same discipline to the company itself, as we scale to meet the technical needs of defense and space customers who need range and speed legacy systems can't deliver."

The key hires include:

Lane Bodian, Vice President of Public Policy

Bodian previously served as the Principal Deputy Assistant Secretary of Defense for Legislative Affairs at the Pentagon.

Dan Rebnord, Director of Federal Government Relations

Rebnord most recently served as Senior Policy Advisor to a member of the Senate Armed Services Committee and previously worked in the Office of Legislative Affairs at the Department of Defense and as Staff Director for a national security subcommittee in the House of Representatives. Rebnord and Bodian will lead Venus' work with government stakeholders.

Tom Barron, Chief Operating Officer

Barron was promoted from his role as vice president of operations for Venus Aerospace. Before his time at Venus, he served as Special Assistant to the Secretary of Defense and consulted aerospace clients at McKinsey & Company. He also served as a U.S. Army Infantry and Special Forces officer.

Nick Cardwell, Chief Product Officer

Cardwell was promoted from his role as vice president of research and development. He previously held product and technology leadership roles at VC-backed tech companies in the San Francisco Bay Area and Austin.

Venus also named Cameron Taylor as its new vice president of operations, Sarah Boland Heine as its head of communications, Matt Stohr as its head of business development, and Sheila Menz as general counsel.

The company also announced a joint technology development agreement to advance the RDRE with defense giant Lockheed Martin last week. Through the partnership, Venus and Lockheed will focus on evaluating the RDRE's propulsion architecture in defense systems, specifically for precision fires applications where weapons are designed to accurately strike targets at long distances.

Lockheed Martin Ventures, the investment arm of the aerospace and defense contractor, is an investor in Venus Aerospace.

"Lockheed Martin is focused on rapidly delivering advanced capabilities that strengthen deterrence and provide decisive advantages for the warfighter," Tim Cahill, president, Lockheed Martin Missiles and Fire Control, said in a news release. "Our collaboration with Venus Aerospace allows us to evaluate a promising propulsion technology and determine how it can be integrated into future precision fires solutions. Efforts like this help accelerate innovation, reduce risk and shorten the path from emerging technology to operational capability."

Venus' RDRE is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus says the reusable, affordable and scalable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types. The company has previously estimated that the hypersonic market is projected to surpass $12 billion by 2030.