Houston researcher advances promising early-stage cancer diagnosis method

hi, tech

A University of Houston researcher has reported a 98.7-percent rate of accuracy for a method pioneered by his lab to identify cancers at their earliest stages. Photo via Getty Images

Could detecting cancer one day be as easy as taking a blood test? Wei-Chuan Shih, a University of Houston researcher and Cullen College of Engineering professor of electrical and computer engineering, has reported a 98.7-percent rate of accuracy for a method pioneered by his lab to identify cancers at their earliest stages.

The technology combines Shih’s own PANORAMA (PlAsmonic NanO-apeRture lAbel-free iMAging) with fluorescent imaging to view nanometer-sized membrane sacs, called extracellular vesicles or EVs. EVs carry different types of cargo, including proteins, nucleic acids and metabolites, throughout the bloodstream.

“We observed differences in small EV numbers and cargo in samples taken from healthy people versus people with cancer and are able to differentiate these two populations based on our analysis of the small EVs,” reports Shih, in Nature Communications Medicine. “The findings came from combining two imaging methods – our previously developed method PANORAMA and imaging of fluorescence emitted by small EVs—to visualize and count small EVs, determine their size and analyze their cargo.”

Shih introduced PANORAMA in 2020. The technology uses a glass side covered with gold nano discs that allows users to monitor changes in the transmission of light as well as determine the characteristics of nanoparticles as small as 25 nanometers in diameter. For the new publication, Shih and his team just had to count the number of small EVs in order to detect cancer.

“Using a cutoff of 70 normalized small EV counts, all cancer samples from 205 patients were above this threshold except for one sample, and for healthy samples, from 106 healthy individuals, all but three were above this cutoff, giving a cancer detection sensitivity of 99.5% and specificity of 97.3%,” says Shih.

The team was able to report 100-percent accuracy with further testing that analyzed two independent sets of samples from stage I-IV or recurrent leiomyosarcoma/gastrointestinal stromal tumors and early-and-late-stage cholangiocarcinoma combined with healthy samples.

Shih and collaborator Steven H. Lin have founded Seek Diagnostics with the goal of commercializing the technology that they’ve innovated. In 2022, the duo joined the Texas Medical Center Innovation's cancer-focused accelerator.

Wei-Chuan Shih is a professor of electrical and computer engineering at the University of Houston's Cullen College of Engineering. Photo via UH.edu

Mark Clarke (left) and Wei-Chuan Shih were named among the National Academy of Inventors' inaugural class of senior members. Courtesy of the University of Houston

2 UH scientists receive prestigious national recognition for fostering innovation

top of the class

Two researchers at the University of Houston have been named to the inaugural class of senior members for the National Academy of Inventors. The new distinction recognizes the honorees for fostering innovation and educating and mentoring future innovators — as well as their contribution to science and technology.

The two UH honorees are Mark Clarke, associate provost for faculty development and faculty affairs, and Wei-Chuan Shih, associate professor of electrical and computer engineering. Both will be recognized at the eighth annual NAI meeting in Houston this April, a release from UH says.

"Dr. Clarke and Dr. Shih both have impressive records of producing impactful intellectual property and spurring innovation that is pertinent to the Houston region," Amr Elnashai, vice president of research and technology at UH, says in the release. "Their further efforts, including helping UH faculty commercialize technologies as well as working with graduate and undergraduate students to boost their entrepreneurial efforts, are a critical contribution to building the region's innovation ecosystem."

NAI named 65 total scientists from 37 universities as senior members. The scientists have been named on over 1,100 patents issued in the United States. Ten other Texas scientists made the inaugural class, representing Texas Tech university, Texas A&M University, Baylor College of Medicine, and University of Texas at Arlington.

The organization also has a fellowship program, in which UH has 12 current fellows.

Clarke has been at UH for over a decade and previously held the position of associate vice chancellor/vice president for technology transfer at the UH Division of Research, where he oversaw a portfolio of 360 technology patents, according to the release. Clarke has 13 patents to his name and previously worked at two startups — both commercialized technologies Clarke developed in his tenure at NASA then UH.

UH's other senior NIA member, Shih, has been granted 11 patents in the US. His NanoBioPhotonics Group has developed a number of sensing and imaging technologies and devices for biomedicine and environmental testing, among other fields. Shih, who has been at the university for over nine years, created a startup with a group of students called DotLens. The company produced and distributed lenses that could be used to convert a smartphone into a microphone.

A few months ago, a Houston scientist received international recognition when he

won the Nobel Prize for the cancer research he did for the University of Texas MD Anderson Cancer center. Jim Allison won for his work in launching an effective new way to attack cancer by treating the immune system rather than the tumor.

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3 Houston innovators to know this week

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Editor's note: Every week, I introduce you to a handful of Houston innovators to know recently making headlines with news of innovative technology, investment activity, and more. This week's batch includes an e-commerce startup founder, an industrial biologist, and a cellular scientist.

Omair Tariq, co-founder and CEO of Cart.com

Omair Tariq of Cart.com joins the Houston Innovators Podcast to share his confidence in Houston as the right place to scale his unicorn. Photo via Cart.com

Houston-based Cart.com, which operates a multichannel commerce platform, has secured $105 million in debt refinancing from investment manager BlackRock.

The debt refinancing follows a recent $25 million series C extension round, bringing Cart.com’s series C total to $85 million. The scaleup’s valuation now stands at $1.2 billion, making it one of the few $1 billion-plus “unicorns” in the Houston area.

Cart.com was co-founded by CEO Omair Tariq in October 2020. Read more.

Nádia Skorupa Parachin, vice president of industrial biotechnology at Cemvita

Nádia Skorupa Parachin joined Cemvita as vice president of industrial biotechnology. Photo courtesy of Cemvita

Houston-based biotech company Cemvita recently tapped two executives to help commercialize its sustainable fuel made from carbon waste.

Nádia Skorupa Parachin came aboard as vice president of industrial biotechnology, and Phil Garcia was promoted to vice president of commercialization.

Parachin most recently oversaw several projects at Boston-based biotech company Ginkjo Bioworks. She previously co-founded Brazilian biotech startup Integra Bioprocessos. Read more.

Han Xiao, associate professor of chemistry at Rice University

The funds were awarded to Han Xiao, a chemist at Rice University.

A Rice University chemist has landed a $2 million grant from the National Institute of Health for his work that aims to reprogram the genetic code and explore the role certain cells play in causing diseases like cancer and neurological disorders.

The funds were awarded to Han Xiao, the Norman Hackerman-Welch Young Investigator, associate professor of chemistry, from the NIH's Maximizing Investigators’ Research Award (MIRA) program, which supports medically focused laboratories. Xiao will use the five-year grant to advance his work on noncanonical amino acids.

“This innovative approach could revolutionize how we understand and control cellular functions,” Xiao said in the statement. Read more.

Houston chemist lands $2M NIH grant for cancer treatment research

future of cellular health

Xiao will use the five-year grant to develop noncanonical amino acids (ncAAs) with diverse properties to help build proteins, according to a statement from Rice. He and his team will then use the ncAAs to explore the vivo sensors for enzymes involved in posttranslational modifications (PTMs), which play a role in the development of cancers and neurological disorders. Additionally, the team will look to develop a way to detect these enzymes in living organisms in real-time rather than in a lab.

“This innovative approach could revolutionize how we understand and control cellular functions,” Xiao said in the statement.

According to Rice, these developments could have major implications for the way diseases are treated, specifically for epigenetic inhibitors that are used to treat cancer.

Xiao helped lead the charge to launch Rice's new Synthesis X Center this spring. The center, which was born out of informal meetings between Xio's lab and others from the Baylor College of Medicine’s Dan L Duncan Comprehensive Cancer Center at the Baylor College of Medicine, aims to improve cancer outcomes by turning fundamental research into clinical applications.

They will build upon annual retreats, in which investigators can share unpublished findings, and also plan to host a national conference, the first slated for this fall titled "Synthetic Innovations Towards a Cure for Cancer.”

Houston neighbor ranks as one of America's most livable small cities

mo city

Some Houston suburbs stick out from the rest thanks to their affluent residents, and now Missouri City is getting time in the spotlight, thanks to its new ranking as the No. 77 most livable small city in the country.

The tiny but mighty Houston neighbor, located less than 20 miles southwest of Houston, was among six Texas cities that earned a top-100 ranking in SmartAsset's 2024 " Most Livable Small Cities" report. It compared 281 U.S. cities with populations between 65,000 and 100,000 residents across eight metrics, such as a resident's housing costs as a percentage of household income, the city's average commute times, and the proportions of entertainment, food service, and healthcare establishments.

According to the U.S. Census Bureau, Missouri City has an estimated population of over 76,000 residents, whose median household income comes out to $97,211. SmartAsset calculated that a Missouri City household's annual housing costs only take up 19.4 percent of that household's income. Additionally, the study found only six percent of the town's population live below the poverty level.

Here's how Missouri City performed in two other metrics in the study:

1.4 percent – The proportion of arts, entertainment, and recreation businesses as a percentage of all businesses
29.9 minutes – Worker's average commute time

But income and housing aren't the only things that make Missouri City one of the most livable small cities in Texas. Residents benefit from its proximity from central Houston, but the town mainly prides itself on its spacious park system, playgrounds, and other recreational activities.

Missouri City, Texas

Missouri City residents have plenty of parkland to enjoy. www.missouricitytx.gov

The Missouri City Parks and Recreation Departmen meticulously maintains 21 parks spanning just over 515 acres of land, an additional 500 acres of undeveloped parkland, and 14.4 miles of trails throughout the town, according to the city's website."Small cities may offer cost benefits for residents looking to stretch their income while enjoying a comfortable – and more spacious – lifestyle," the report's author wrote. "While livability is a subjective concept that may take on different definitions for different people, some elements of a community can come close to being universally beneficial."

Missouri City is also home to Fort Bend Town Square, a massive mixed-use development at the intersection of TX 6 and the Fort Bend Parkway. It offers apartments, shopping, and restaurants, including a rumored location of Trill Burgers.

Other Houston-area cities that earned a spot in the report include

Spring (No. 227) and Baytown (No. 254).The five remaining Texas cities that were among the top 100 most livable small cities in the U.S. include Flower Mound (No. 29), Leander (No. 60), Mansfield (No. 69), Pflugerville (No. 78), and Cedar Park (No. 85).

The top 10 most livable small cities in the U.S. are:

No. 1 – Troy, Michigan
No. 2 – Rochester Hills, Michigan
No. 3 – Eau Claire, Wisconsin
No. 4 – Franklin, Tennessee
No. 5 – Redmond, Washington
No. 6 – Appleton, Wisconsin
No. 7 – Apex, North Carolina
No. 8 – Plymouth, Minnesota
No. 9 – Livonia, Michigan
No. 10 – Oshkosh, Wisconsin

The report examined data from the U.S. Census Bureau's 2022 1-year American Community Survey and the 2021 County Business Patterns Survey to determine its rankings.The report and its methodology can be found on

smartasset.com

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This article originally ran on CultureMap.

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