Author Archives: 瑶 翟

The approval of the world’s first CAR-T therapy for solid tumors not only marks a new milestone in CAR-T treatment, but also brings CLDN18.2 into the spotlight as a highly attractive target. During CAR-T development, accurately and reliably detecting CAR positivity is an important foundation for evaluating product quality and functional performance.

Classic targets such as EGFR, RET, RAS, ER, and AR continue to evolve, while precision oncology advances from identifying driver mutations toward earlier intervention and more refined patient stratification.

Bispecific antibody development is evolving beyond simply combining two targets, with T-cell engagers, PD-1×VEGF, PD-1×CTLA-4, and 4-1BB-based approaches emerging as key drivers of next-generation immuno-oncology innovation.

From April to May 2026, global biopharma dealmaking rebounded, with major pharma focusing on de-risked assets and growing interest in platform technologies such as ADCs, TCEs, and multispecific antibodies. Meanwhile, Chinese biotech accelerated global expansion, oncology shifted toward “platform technology + multi-mechanism combinations,” and AI drug discovery moved closer to real-world industrial adoption.

With updated Phase III clinical data released by Roche in 2025, trontinemab has emerged as a leading example of TfR1-mediated blood–brain barrier delivery, achieving high amyloid clearance with low ARIA-E incidence in Alzheimer’s disease patients. By exploiting TfR1-dependent transcytosis, this bispecific antibody highlights TfR1/CD71 not only as a central regulator of iron metabolism, but also as a highly promising gateway for CNS therapeutic delivery.

Site-specific protein ligation is increasingly critical in applications such as protein labeling, antibody conjugation, and multifunctional fusion protein construction. Sortase A (SrtA), a transpeptidase from Gram-positive bacteria, is widely used for its LPXTG motif recognition and efficient ligation with oligoglycine substrates, with engineered variants further improving catalytic efficiency and control.