thebiostories

Can Hepatitis B Finally Be Cured? How an antisense drug moved from an experimental molecule to successful Phase 3 trials. ⏱ In 30 Seconds ✓ Bepirovirsen is an antisense oligonucleotide designed to target hepatitis B virus (HBV) RNA. ✓ In two Phase 3 trials, functional cure was achieved in 20% and 19% of treated participants, compared with 0% in placebo groups. ✓ Bepirovirsen is now under regulatory review, although questions remain about how many patients will benefit and its safety profile . Chronic hepatitis B can be effectively controlled with antiviral drugs such as tenofovir and entecavir, which suppress HBV replication and substantially reduce the risk of liver disease. However, these treatments rarely produce a functional cure, and many patients require long-term therapy. Bepirovirsen is an antisense oligonucleotide that targets HBV RNA, with the aim of reducing both viral replication and the production of viral proteins. In 2026, two large Phas...

The Personalized Cancer Vaccine That Just Succeeded in Phase 3 One Patient at a Time: How Merck and Moderna turned a patient’s own tumour mutations into an individualized mRNA therapy — and took it through a successful Phase 3 trial. ⏱ In 30 Seconds ✓ Intismeran autogene is made individually from mutations identified in each patient’s tumour. ✓ Its mRNA can encode up to 34 patient-specific neoantigens to help generate tumour-specific T-cell responses. ✓ Combined with pembrolizumab (Keytruda), it has now met the primary endpoint in a large Phase 3 melanoma trial . ✓ The full Phase 3 effect size and overall-survival results have not yet been reported. The trial was designed to follow patients for years, but on August 19, 2026, Merck and Moderna announced that a prespecified interim analysis had already provided an important answer. Their individualized mRNA cancer treatment, intismeran autogene , combined with pembrolizumab (Keytruda), had met the primary endpo...

What Is the Most Common Virus That Causes Cancer? HPV causes more cancers worldwide than any other virus — but it is only one of several infections capable of contributing to human cancer. Cancer is usually thought of as a disease of damaged genes. But sometimes the chain of events that leads to cancer begins with something entirely different: an infection. Most familiar viral infections are not associated with cancer. The viruses that cause the common cold, influenza viruses and coronaviruses such as SARS-CoV-2 are not established cancer-causing viruses. But a small group of viruses can, under the right circumstances and often over many years, contribute to the development of cancer. Among them, HPV is responsible for the largest number of cancer cases worldwide. According to the International Agency for Research on Cancer (IARC), almost 750,000 new cancer cases worldwide in 2020 were attributable to HPV infection. HPV is not alone. Hepatitis B and C viruses can cause li...

The Man With the Golden Arm: How James Harrison’s Blood Helped Protect 2.4 Million Babies He survived because strangers donated blood. Then he spent more than 60 years giving his own to protect generations of Australian babies. ⏱ In 30 Seconds ✓ James Harrison donated blood and plasma 1,173 times over more than 60 years. ✓ His plasma contained valuable anti-D antibodies used to help prevent haemolytic disease of the fetus and newborn. ✓ Lifeblood credits his extraordinary donations with contributing to anti-D protection for millions of Australian babies. ✓ Today, researchers at WEHI and Australian Red Cross Lifeblood are working to reproduce anti-RhD antibodies in the laboratory, reducing future dependence on rare donors. James Harrison spent more than 60 years giving something extraordinary to people he would never meet: his blood . Australian Red Cross Lifeblood estimates that his donations helped protect around 2.4 million babies . ...

Jian Zhou: The Scientist Who Helped Make the HPV Vaccine Possible He lived long enough to see the vaccine reach clinical trials — but not long enough to see how far it would eventually go. ⏱ In 30 Seconds ✓ Jian Zhou was a Chinese-born virologist who worked with Ian Frazer, Xiao-Yi Sun and colleagues on research that helped make HPV vaccination possible. ✓ In 1991, Zhou was first author of a landmark study showing that HPV16 capsid proteins could assemble into virus-like particles (VLPs) , a crucial principle behind modern HPV vaccines. ✓ Zhou died unexpectedly in 1999 at just 42 years old , when vaccine development based on the research had already reached clinical trials. ✓ He never saw HPV vaccines become a global cancer-prevention tool. Ian Frazer later described Zhou as an “equal partner” in much of the HPV vaccine development work. In 2006, one of the most remarkable ideas in cancer prevention became a medical reality. A vaccine against human papillomavirus (...

How John Gorman’s Anti-D Discovery Saved Millions of Babies — And Why Scientists Are Reinventing It ⏱ In 30 Seconds ✓ Australian physician Dr John Gorman helped develop anti-D immunoglobulin, transforming the prevention of Rh disease and helping save millions of babies. ✓ Before anti-D became available, Gorman recalled that around 10% of neonatal deaths in Melbourne were caused by Rh disease. ✓ Anti-D reveals an extraordinary paradox: the same type of antibody that can destroy an RhD-positive baby's red blood cells can also prevent the immune response that causes the disease. ✓ More than 60 years later, Professor Ian Wicks, Dr Behnaz Heydarchi and researchers at WEHI and Australian Red Cross Lifeblood are developing a recombinant anti-RhD antibody that could reduce dependence on rare human plasma donors. The Story Hidden Inside a Routine Injection For most pregnant women in Australia today, discovering that they are RhD negative is unlikely to cause much alarm. ...

🌏 Available in: English | 한국어 현대 의학을 만든 숨은 조력자들 현대 의학의 발전에서 마우스 모델이 해온 역할 ⏱ 30초 요약 ✓ 마우스 모델은 살아 있는 개체 안에서 유전자, 세포와 생물학적 경로가 질병에 어떻게 관여하는지를 연구할 수 있게 한다. ✓ 생쥐는 인간과 많은 유전자와 생물학적 경로를 공유하며, 유전자를 정밀하게 조절해 원인과 결과를 직접 검증할 수 있다. ✓ 녹아웃, 유전자 도입, 조건부, 리포터, 사람 면역계 마우스와 PDX 등 서로 다른 모델이 서로 다른 과학적 질문에 사용된다. ✓ 마우스 모델은 암, 면역질환, 감염병, 혈액질환과 유전질환 연구를 포함한 현대 의학의 발전에 중요한 역할을 해왔다. ✓ 그러나 마우스는 작은 인간이 아니기 때문에 연구 결과는 사람의 생물학과 임상 연구를 통해 다시 검증돼야 한다. 새로운 치료제가 사람에게 사용되기까지는 수많은 실험을 거쳐야 합니다. 세포 배양은 질병의 분자 기전을 연구하는 데 매우 유용하지만, 살아 있는 생명체는 훨씬 복잡합니다. 혈액순환, 면역계, 대사, 호르몬, 신경계와 여러 장기가 서로 영향을 주고받기 때문입니다. 그래서 연구자들은 오랫동안 마우스 모델을 이용해 세포에서 발견한 현상이 살아 있는 개체에서도 실제로 일어나는지를 확인해 왔습니다. 특히 마우스에서는 특정 유전자를 제거하거나 추가하고, 원하는 세포나 조직에서만 그 유전자의 기능을 조절할 수 있습니다. 이를 통해 사람에게서는 직접 실험할 수 없는 질병의 원인과 치료 기전을 연구할 수 있습니다. 하지만 모든 실험쥐가 같은 것은 아닙니다. 녹아웃 마우스, 유전자 도입 마우스, humanised mouse, PDX 모델처럼 연구 질문에 따라 전혀 다른 마우스가 사용됩니다. 이 글에서는 왜 마우스가 오랫동안 의학 연구에서 중요한 모델로 사용돼 왔는지, 그리고 서로 다른 마우스 모델이 실제로 어떤 질문에 답할 수 있는지 ...