Rice biochemist Natasha Kirienko and MD Anderson physician-scientist Marina Konopleva made the striking discovery. Photo by Jeff Fitlow

Rice University and MD Anderson researchers have just discovered a potential one-two punch that could, they hope, knock out an insidious disease.

A recent study in the journal Leukemia centers on potential new drugs that, with the help of other medications, can thwart leukemia cells.

Specifically, Rice biochemist Natasha Kirienko and MD Anderson physician-scientist Marina Konopleva screened some 45,000 small-molecule compounds to find a few that targeted mitochondria, according to Rice press materials.

In this innovative new study, the team selected eight of the most promising compounds, identified between five and 30 closely related analogs for each, and conducted tens of thousands of tests to systematically determine how toxic each analog was to leukemia cells. This was measured both when administered individually or in combination with existing chemotherapy drugs like doxorubicin, notes a release.

Previously, Kirienko’s lab had shown the eight compounds targeted energy-producing machinery inside cells called mitochondria. Mitochondria, which work nonstop in every living cell, wear out with use. The chosen eight compounds induce mitophagy, which can be described as how cells decommission and recycle deficient and used-up.

Notably, during times of extreme stress, cells can temporarily forgo mitophagy for an emergency energy boost. Previous research has shown leukemia cells have far more damaged mitochondria than healthy cells and are also more sensitive to mitochondrial damage than healthy cells.

Thus, Kirienko and Konopleva reasoned that mitophagy-inducing drugs might weaken leukemia cells and make them more susceptible to chemotherapy. Synergy — using two or more drugs in treatment — is key.

“The point of synergy is that there are concentrations, or dosages, where a single drug doesn't kill,” Kirienko said. “There is no death of healthy cells or cancer cells. But administering those same concentrations in combination can kill a considerable amount of cancer cells and still not affect healthy cells.”

The team tested the toxicity of its mitophagy-inducing compounds and combinations against acute myeloid leukemia (AML) cells, the most commonly diagnosed form of the disease. They then tested the six most effective AML-killing compounds against other forms of leukemia, finding that five were also effective at killing acute lymphoblastic leukemia (ALL) cells and chronic myelogenous leukemia (CML) cells.

Studies found all the mitophagy-inducing drugs caused far less harm to healthy cells.

Finally, the researchers tested one of the most effective mitochondria-targeting compounds, PS127E, using a cutting-edge technique called a patient-derived xenograft (PDX) model. Also referred to as a “mouse clinical trial,” mice are implanted with cancer cells from a leukemia patient. As the cells grow, the mouse is exposed to a drug or combination of drugs as a closer-than-cells test of the treatment’s effect.

Importantly, PDX tests on one compound, PS127E, showed it was effective at killing AML cells in mice, Rice notes, signaling promising news.

“Although this is very promising, we’re still some distance from having a new treatment we can use in the clinic,” Kirienko added. “We still have a lot to discover. For example, we need to better understand how the drugs work in cells. We need to refine the dose we think would be best, and perhaps most importantly, we need to test on a wide variety of AML cancers. AML has a lot of variations, and we need to know which patients are most likely to benefit from this treatment and which are not. Only after we’ve done that work, which may take a few years, would we be able to start testing in humans.”

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This article originally ran on CultureMap.

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Microsoft partners with Rice University's OpenStax on AI teaching tool

group project

Rice University’s OpenStax and Microsoft are partnering to integrate the nonprofit’s content with the tech giant’s AI innovation, known as Learning Zone.

“At OpenStax, our mission is to make an amazing education accessible to all,” Richard G. Baraniuk, founder and director of OpenStax, said in a news release. “That’s why we’re excited to integrate our trustworthy, peer-reviewed content with Microsoft’s AI technology through the Microsoft Learning Zone. Together, we aim to help more instructors and their students access engaging, effective learning experiences in new and dynamic ways. We also share a strong commitment to the thoughtful and responsible application of AI to better ensure all learners can succeed.”

OpenStax is a provider of affordable instructional technologies and is also one of the world’s largest publishers of open educational resources (OER).

Microsoft Learning Zone promises to provide educators and students with “responsible AI technology and peer-reviewed educational content to support learning” on Microsoft Copilot+ PCs. Microsoft Learning Zone works by utilizing on-device AI to generate interactive lessons for students, and its integration with OpenStax content means educators can rely on OpenStax’s digital library of 80 openly licensed titles.

The goal is for educators to create effective and engaging learning experiences safely, thereby bypassing the need to source and vet content independently. Included is a library of ready-to-use lessons, opportunity for immediate feedback and differentiated learning. Educators will maintain control of instructional content and pedagogical strategies and will be able to update or edit lessons or activities prior to sharing them with students.

Other tools included in the Microsoft Learning Zone are additional languages, reading coaching, public speaking help, math and reading progress, and a partnership with the online quiz platform Kahoot!

OpenStax resources have been reported as used across 153 countries, and this current collaboration combines the power and potential of responsible AI usage in education with content that has been utilized by 13,569 K-12 schools and 71 percent of U.S. colleges and universities, according to Rice.

“Through our partnership with OpenStax, we’re combining the power of on-device AI in Copilot+ PCs with OpenStax’s trusted and diverse peer-reviewed content to help educators quickly create high-quality, personalized, engaging lessons,” Deirdre Quarnstrom, vice president of Microsoft Education, added in the news release. “We’re excited about how this collaboration will empower classrooms globally.”

Houston ranks among the 15 best cities in America for 2025

Ranking It

A new national report ranking the best cities in America has declared Houston is the 13th best U.S. city in 2025.

The annual "America's Best Cities" report from Resonance Consultancy, a Canada-based real estate and tourism marketing firm, ranks the relative qualities of livability, cultural "lovability," and economic prosperity in America's principal cities with metropolitan populations of 500,000 or more.

These top 100 cities "brilliantly weave local culture with economic prospects, aligning with global and domestic travel trends to create premier experiences for both residents and travelers."

Houston's new placement is three spots lower than its triumphant No. 10 rank in 2024. Though it no longer holds a prized top-10 spot, the report hails Houston as a "coveted hometown for the best and brightest on earth."

Among Houston's other shining attributes are its booming population growth – which has now grown to a staggering 7.51 million people – plus its competitive real estate market and a vibrant hospitality and culinary scene. Additionally, Houston earned a well-deserved No. 4 rank in the report's "restaurants" subcategory.

"A 221-room Home2 Suites/Tru by Hilton debuted near Toyota Center in March, while Marriott’s newly renovated Residence Inn NASA/Clear Lake keeps surging visitors happy," the report said. "West Houston’s Greenside will convert 35,000 square feet of warehouses into a park-laced retail hub by 2026, while America’s inaugural Ismaili Center, rising along Allen Parkway, remains on schedule for later this year, adding yet another cultural jewel to H-Town’s festival-fueled mosaic."

The report additionally puts a large focus on Houston's innovative energy sector and its numerous large companies that boost the local economy and create thousands of jobs. Several of these Houston-based companies are some of the best places to work, according to U.S. News and World Report.

One such company that was specifically praised in the report was the HyVelocity Hub, which aims to "ensure economic resilience and long-lasting, domestic energy production" along the Gulf Coast.

"The HyVelocity Hydrogen Hub just locked in up to $1.2 billion from the U.S. DOE, targeting 45,000 jobs and slicing 7.7 million tons of CO₂ a year," the report said.

Elsewhere in Texas

Dallas (No. 14) and Austin (No. 15) ranked right behind Houston in the top 20, while San Antonio sank into the No. 41 spot after previously ranking 32nd last year. El Paso also fell from No. 83 in 2024 to No. 100 this year.

Jason McGrath, the executive vice president and head of U.S. Corporate Reputation at Ipsos, said in the report that American cities are proving their resiliency as they are faced with "climate issues, increasing infrastructural demands, and shifting geopolitical landscapes affecting international relations and travel."

"Despite these hurdles, cities are creatively reinventing themselves to shine as examples of cultural vibrancy and innovation, keeping their competitive edge both locally and globally," McGrath said. "Our report shows that the allure of American cities remains strong, thanks to their rich diversity and vast attractions — from natural wonders to buzzing cultural hubs."

The top 10 best cities in America in 2025 are:

  • No. 1 – New York City, New York
  • No. 2 – Los Angeles, California
  • No. 3 – Chicago, Illinois
  • No. 4 – San Francisco, California
  • No. 5 – Seattle, Washington
  • No. 6 – Miami, Florida
  • No. 7 – Boston, Massachusetts
  • No. 8 – Washington, D.C.
  • No. 9 – Las Vegas, Nevada
  • No. 10 – San Diego, California
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This article originally appeared on CultureMap.com.

Houston biosciences company opens new sequencing center for drug development

bioscience breakthroughs

Houston-based Avance Biosciences has launched the Next-Generation Sequencing Center of Excellence, designed to enhance the company’s sequencing capabilities for drug development. Specifically, the facility at the company’s main campus in Northwest Houston will pursue breakthroughs in biologics, cell therapy and gene therapy.

In the drug industry, sequencing refers to studying nucleotides in DNA and RNA molecules. Nucleotides are the building blocks of DNA and RNA.

“This is a major milestone for Avance Biosciences as we continue to support the evolving needs of biologics and cell and gene therapy developers,” Xuening “James” Huang, co-founder, CEO and chief technology officer of Avance, said in a news release. “By consolidating state-of-the-art sequencing platforms and scientific talent, we’ve created a highly capable organization ready to solve complex genomic challenges with precision and compliance.”

In 2013, Avance rolled out next-generation sequencing (NGS) that complies with federal guidelines. Since then, Avance “has remained at the forefront of regulated sequencing services,” the company said. “The launch of the (new center) strengthens the company’s ability to deliver accurate, reproducible, and regulatory-aligned sequencing data across a wide array of therapeutic modalities.”

Cal Froberg, senior vice president of sales and marketing at Avance, said pharmaceutical and biotech clients trust the company’s technical capabilities and regulatory compliance.

“With the ever-changing global landscape and increasing scrutiny around international sample shipments, conducting advanced, cost-effective NGS testing domestically is now more feasible than ever,” Froberg said. “Our clients have confidence that their samples will remain in the U.S.”

Avance, founded in 2010, plans to hold an open house at the new facility in September to showcase its capabilities, technology, talent, and services. The company’s services include sequencing, molecular biology, cell-based testing, and bioanalytical testing.