Pig-derived exosomes as Alzheimer’s therapy: systemic barriers to biotech innovation and ethical oversight

Indigenous knowledge systems often view biological materials as sacred and interconnected with ecological and spiritual systems, contrasting with the reductionist, extractive approach of Western biotechnology. The use of pig-derived exosomes raises questions about consent, cultural appropriation, and the commodification of living materials, which Indigenous scholars like Robin Wall Kimmerer critique as a violation of reciprocity. Additionally, Indigenous communities have long used animal-derived substances for neurological health, such as the use of deer antler in TCM or kangaroo tendon in some Australian Aboriginal practices, but these are framed as 'alternative' rather than evidence-based.

The history of animal-derived therapies in medicine is fraught with ethical and scientific controversies, from the use of cowpox in early vaccines to the failed experiments with primate-derived treatments in the 20th century. The 19th-century practice of 'animal magnetism' and the 20th-century xenotransplantation debates highlight the cyclical nature of sensationalized biotech promises, often followed by ethical backlash and regulatory crackdowns. The current focus on exosomes echoes earlier enthusiasm for stem cell therapies, which similarly promised breakthroughs but faced reproducibility and safety concerns.

In Ayurveda, animal-derived substances like cow urine and ghee are used for neurological disorders, but their application is governed by strict ethical guidelines and holistic diagnostic frameworks. African traditional medicine employs animal products like snake venom and honeybee products for cognitive health, yet these are rarely integrated into Western research agendas. Meanwhile, in Japan, the concept of 'kampo' medicine blends herbal and animal-derived remedies, but its inclusion in mainstream healthcare remains limited due to regulatory and cultural barriers.

Exosomes are lipid-bound vesicles that facilitate intercellular communication, and their potential in drug delivery is supported by preclinical studies showing their ability to cross the blood-brain barrier. However, the efficacy and safety of pig-derived exosomes in humans remain unproven, with concerns about immunogenicity, zoonotic risks, and long-term effects. The peer-reviewed publication in a reputable journal suggests scientific rigor, but the translational gap from lab to clinic is substantial, as seen in similar biotech innovations like gene therapy.

The use of pig semen in a biomedical context evokes visceral reactions that challenge cultural taboos, particularly in societies where bodily fluids are considered sacred or impure. Artists like Kader Attia have explored the intersections of biotechnology and cultural memory, highlighting how scientific innovations often repurpose ancient taboos into marketable products. Similarly, spiritual traditions in many cultures view the body as a microcosm of the universe, complicating the reductionist framing of exosomes as mere delivery vehicles.

If successful, pig-derived exosomes could revolutionize neurodegenerative disease treatment, but their scalability and ethical implications demand proactive governance frameworks to prevent exploitation. Scenario modeling suggests that without equitable access frameworks, such therapies may exacerbate global health inequalities, as seen with COVID-19 vaccines. Additionally, the focus on high-tech solutions risks deprioritizing low-cost, community-based interventions like diet, exercise, and environmental health measures, which have stronger evidence bases for dementia prevention.

Marginalized communities, including Indigenous peoples, low-income groups, and people of color, are disproportionately affected by Alzheimer’s and other neurodegenerative diseases due to systemic inequities in healthcare access and environmental exposures. Their perspectives are often excluded from clinical trials and research agendas, as seen in the underrepresentation of Black and Latino populations in Alzheimer’s studies. Furthermore, the commodification of biological materials risks further marginalizing these communities, as their traditional knowledge may be appropriated without benefit-sharing or consent.