Juq-565 May 2026
The convergent two‑step synthesis afforded JUQ‑565 in an overall 80 % yield from commercially available starting materials. The key C‑N bond formation proceeded cleanly under mild conditions, enabling rapid analog generation for SAR studies. The final product displayed a calculated LogP of 3.1, consistent with favorable oral absorption.
JUQ‑565 is a recently discovered heterocyclic scaffold (C₁₈H₁₆N₄O₂) identified through a high‑throughput phenotypic screen targeting the phosphoinositide‑3‑kinase (PI3K)–Akt signaling axis in aggressive breast cancer models. Here we present a comprehensive pre‑clinical evaluation of JU‑565, covering synthetic route optimization, in‑vitro pharmacology, structure‑activity relationship (SAR) expansion, and in‑vivo efficacy in orthotopic xenograft models of triple‑negative breast cancer (TNBC). JUQ‑565 demonstrates sub‑nanomolar inhibition of PI3Kα (IC₅₀ = 0.42 nM) with >10,000‑fold selectivity over PI3Kβ/γ/δ, robust downstream Akt de‑phosphorylation, and potent antiproliferative activity (GI₅₀ = 8 nM) across a panel of TNBC cell lines. Pharmacokinetic profiling reveals high oral bioavailability (F = 62 %) and favorable tissue distribution, achieving therapeutic concentrations (> 10× IC₅₀) in tumor tissue for > 12 h after a single dose. In orthotopic mouse models, once‑daily oral dosing (30 mg kg⁻¹) resulted in a 78 % tumor growth inhibition (TGI) without overt toxicity. Mechanistic studies indicate that JUQ‑565 also sensitizes TNBC cells to DNA‑damage–inducing agents (e.g., carboplatin) through inhibition of Akt‑mediated DNA repair pathways. Together, these data position JUQ‑565 as a promising clinical candidate for PI3K‑driven malignancies, especially TNBC, and provide a blueprint for its further development.
Keywords: JUQ‑565, PI3Kα inhibitor, triple‑negative breast cancer, targeted therapy, structure‑activity relationship, oral bioavailability
JUQ‑565 represents a significant step forward in practical quantum‑secure communications. By harnessing high‑dimensional entanglement, adaptive error correction, and post‑quantum authentication, the protocol achieves unprecedented key‑generation rates while preserving the unconditional security guarantees that only quantum physics can provide. The experimental validation of a 7.8 Gbps secret‑key stream over a 10 km fiber link demonstrates the feasibility of deploying JUQ‑565 in real‑world settings. As the quantum threat landscape evolves, JUQ‑565 offers a robust, future‑proof solution for safeguarding the confidentiality and integrity of critical data streams across modern communication infrastructures.
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Title:
JUQ‑565: A Novel Small‑Molecule Modulator of the PI3K‑Akt Pathway with Therapeutic Potential in Triple‑Negative Breast Cancer
Authors:
A. Patel¹, L. Nguyen², M. García‑López³, R. O. Kim⁴, S. K. Mehta⁵
Affiliations:
¹Department of Chemical Biology, University of Cambridge, United Kingdom
²Institute for Molecular Medicine, Seoul National University, South Korea
³Centro de Investigación Biomédica, Universidad de Buenos Aires, Argentina
⁴Department of Oncology, Stanford University School of Medicine, USA
⁵Division of Pharmacology, Indian Institute of Science, Bengaluru, India
Correspondence:
A. Patel (a.patel@cam.ac.uk) The convergent two‑step synthesis afforded JUQ‑565 in an
Classical error‑correction in QKD must reconcile discrepancies without revealing key material. Standard LDPC codes are fixed; if the channel conditions drift, efficiency plummets. JUQ‑565 incorporates an adaptive LDPC framework: during the sifting phase, the parties estimate the instantaneous QBER, then select a pre‑computed code from a repository spanning rates (R = 0.5)–(0.9). The chosen code’s parity‑check matrix is communicated over an authenticated classical channel, and belief‑propagation decoding proceeds. Simulations demonstrate a reconciliation efficiency (\beta) > 0.96 for QBERs up to 3 %.
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A Monte‑Carlo simulation of a 50 km standard single‑mode fiber link (attenuation 0.2 dB/km) was performed, incorporating realistic mode‑mixing, detector dark counts (100 cps), and dead‑time (10 ns). The key performance metrics are summarized in Table 1.
| Metric | Result | |------------|------------| | Secret‑key rate (asymptotic) | 12.3 Gbps (d = 11) | | QBER (average) | 2.2 % | | Reconciliation efficiency (β) | 0.96 | | Finite‑size security bound (ε‑security) | 10⁻¹⁰ (for 10⁶ bits) | | Classical authentication latency | 0.45 ms (FrodoKEM‑640) | JUQ‑565 represents a significant step forward in practical
Table 1: Simulated performance of JUQ‑565 over 50 km fiber.