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Investigational / not FDA-approved

PNC-27

p53/HDM-2–penetratin chimeric anticancer peptide — in-vitro oncology; ≠ PNC-28.

Editorial review:
What evidence says

Evidence snapshot

This drawer marks papers. It is not a plan, a dose, or a source. A paper is a bounded report. It is not a protocol. Grades name the object. They are not a safety rating.

Identity lock. PNC-27 is a chimeric anticancer peptide combining a p53-derived HDM-2-binding segment with a penetratin (Antennapedia) membrane-transduction sequence. PubChem CID 16201774; formula approx. C188H293N53O44S / MW ~4031–4032; CAS 1159861-00-3. Related peptide PNC-28 is a sibling construct — do not merge. This drawer marks papers. It is not use advice.

Bottom line

Evidence is in vitro / ex vivo oncology pore-formation (“poptosis”) work from the Pincus / Michl / Bowne groups: membrane HDM-2 binding, selective tumor-cell necrosis, leukemia and ovarian models, and recent cervical-cancer cell papers. No approved human oncology indication for PNC-27 is assumed in this pack. Nanoparticle conjugates are delivery science, not approvals.

Papers

PMID 20080680 — Sarafraz-Yazdi 2010

Tested: PNC-27 adopts an HDM-2-binding conformation and kills cancer cells by binding membrane HDM-2.

Does not show: a completed human oncology RCT.

PMID 20182728 — Sookraj 2010

Tested: PNC-27 induces tumor cell lysis as the intact peptide.

Does not show: clinical dosing or labeled indication.

PMID 25117093 — Davitt 2014

Tested: PNC-27 induces necrosis in a poorly differentiated human leukemia cell line dependent on membrane HDM-2 expression.

Does not show: human leukemia trial success.

PMID 28667027 — Alagkiozidis 2017

Tested: synergy between paclitaxel and PNC-27 in ovarian cancer models.

Does not show: approved combination therapy.

PMID 32878773 — Thadi 2020

Tested: targeting membrane HDM-2 by PNC-27 induces necrosis in leukemia cells but not normal hematopoietic cells (in vitro selectivity framing).

Does not show: human safety/efficacy package.

PMID 35625682 — Sarafraz-Yazdi 2022

Tested: chimeric p53-penetratin peptide binds HDM-2 in a p53-like structure, induces selective membrane pores, leads to cancer cell lysis.

Does not show: regulatory approval.

PMID 38802154 — Krzesaj 2024

Tested: PNC-27 interactions with plasma-membrane HDM-2 and mitochondrial membranes causing mitochondrial disruption in cancer cells.

Does not show: human clinical endpoints.

PMID 38927351 — Bowne 2024

Tested: narrative of “poptosis” / peptide-induced transmembrane pore formation as a cancer-cell kill mechanism.

Does not show: a new primary pivotal trial.

PMID 40750238 — Krzesaj 2025

Tested: HDM-2-targeting PNC-27 kills cervical cancer cells but not normal cervical cells (in vitro).

Does not show: cervical cancer clinical approval.

PMID 18931881 — related PNC-28 context (sibling)

Tested: penetratin sequence in anticancer PNC-28 causes tumor cell necrosis (related construct).

Does not show: PNC-27 identity; sibling-object reminder only.

What is not established

Any approved human cancer indication for PNC-27. Equivalence of unlabeled vials to characterized laboratory peptide. Interchangeability with PNC-28. Safety of systemic human use. This drawer does not provide use advice, schedules, or sourcing.

Selected sources

20080680 20182728 25117093 28667027 32878773 35625682 38802154 38927351 40750238 18931881

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