Report summary

Harvard University Department of Systems Biology in 2015-2026 reads as a 77-PI network with 124 internal PI collaborations. The dominant subject mix is Biochemistry, Genetics and Molecular Biology as the leading field (42% of slots across 59 PIs; 59 labels), Molecular Biology as the leading subfield (31% of slots across 56 PIs; 56 labels), and Gene Regulatory Network Analysis as the leading topic (4% of slots across 9 PIs; 9 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 26 PIs across distinct clusters. The leading PI names are Ralph Weissleder (85.3 weighted works; Immune cells in cancer, Nanoplatforms for cancer theranostics). The most visible ties are Peter K. Sorger and Sandro Santagata (57 shared works, weight 21.4); Matthias Nahrendorf and Filip K. Świrski (43 shared works, weight 20.9). The leading breakdown groups are group 1 with 10 PIs, 12 internal connections, weight 61.1, around Molecular Biology, Immunology, Infectious Diseases, led by Ralph Weissleder, Peter Libby, Matthias Nahrendorf.