Advancements in Early Cancer Detection Through Bioengineered Models

Recent advancements in bioengineering are poised to revolutionize cancer research, particularly in the early detection and treatment of the disease. A review conducted by researchers at Oregon Health & Science University’s Knight Cancer Institute, along with other institutions, highlights the potential of New Approach Methodologies (NAMs) and tissue engineering to enhance our understanding of the initial stages of cancer development. These methodologies utilize human-relevant technologies such as in vitro tests, organoids, and organs-on-a-chip to minimize reliance on animal testing.

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Bioengineered models are designed to replicate the human body's environment, providing critical insights into how cancer begins. According to Luiz Bertassoni, D.D.S., Ph.D., director of the Knight Cancer Precision Biofabrication Hub, these technologies facilitate a deeper understanding of cancer formation and progression, which is essential for early diagnosis. The challenge has been the limited access to early-stage tumor samples, as patients typically seek medical attention only after symptoms arise, often too late for effective intervention.

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The development of tissue engineering techniques over the past decade has been instrumental in addressing this knowledge gap. These models allow researchers to recreate and manipulate the early tumor environment, enabling them to investigate how various cellular, genetic, and environmental factors contribute to cancer development. Bertassoni noted that this is an exciting time for cancer research, as the integration of cancer biology, engineering, and clinical treatment opens new avenues for exploration.

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Haylie Helms, M.S., a graduate student at OHSU and lead author of the review, is focusing her dissertation on the engineering and biofabrication of early cancer models. Her research involves single-cell 3D bioprinting, which creates complex tumor models that closely mimic the in vivo environment. These models are crucial for studying tumor development, drug responses, and personalized treatment strategies. Helms emphasized the ability to observe the transformation of healthy tissue into cancerous cells, providing insights into why some precancerous lesions remain benign while others progress to malignancy.

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The research underscores a growing emphasis on "cancer interception," which aims to intervene before a tumor fully forms. This proactive approach could significantly enhance survival rates by addressing cancer at its earliest stages.

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The review, published in *Nature Reviews Bioengineering*, reflects a collaborative effort among researchers to advance cancer research methodologies. Bertassoni stated, “These new technologies give us a window into how cancer forms and progresses, which opens the door to understanding early cancer.”

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• “Early detection is one of the most important factors in surviving cancer,” — Luiz Bertassoni, D.D.S., Ph.D., OHSU Knight Cancer Institute

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• “This is a really exciting time in cancer research,” — Luiz Bertassoni, D.D.S., Ph.D., OHSU Knight Cancer Institute

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• “We can first build a healthy tissue and use different tools to turn it into cancer.” — Haylie Helms, M.S., OHSU Graduate Student

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The integration of bioengineering and cancer research represents a significant step forward in the fight against cancer, with the potential to improve early detection and treatment outcomes.

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