Human umbilical cord–derived conditioned media

Beyond exosomes. The whole-secretome advantage.

Regeneration is not driven by a single molecule. It runs on soluble factors, extracellular matrix signals, redox balance, immune modulation and vesicle-associated communication. PEXT CM keeps all of it, in a proteomically characterized, cell-free platform.

1,205: Identified proteins1,092 supported by ≥2 unique peptides
507: ECM-annotated proteinsStrong tissue-matrix and repair signature
33: Redox / oxidative-stress enzymesOxidative-stress buffering and recovery biology
29: EV / exosome cargo markersVesicle signalling within a broader secretome

Definitions

What conditioned media is

Conditioned media is the bioactive environment created when carefully selected cells release their natural secretome into culture media.

CM is not a live-cell therapy. It does not deliver living cells. It contains the biological messages source cells release into their surrounding environment: soluble proteins, cytokine-related mediators, growth-factor regulatory proteins, extracellular matrix components, redox enzymes and vesicle-associated cargo.

Its value lies in breadth. Instead of one isolated molecule or one purified fraction, CM carries the coordinated communication network cells use to influence repair, remodeling and tissue homeostasis.

CM is the complete biological conversation, not a single signal.

Conditioned media as a cell-free whole-secretome platform, showing four content groups: soluble factors, ECM proteins, redox enzymes and EV-associated cargo, all released by healthy human source cells. — The four content groups that make up the secretome, and where each comes from.Fig. 01

Why the secretome matters

Regeneration begins in the microenvironment

Tissue recovery is not simply a matter of adding growth factors. Cells must migrate. The matrix must reorganize. Inflammation must resolve. Oxidative stress must be buffered. Barrier tissues must rebuild.

Matrix support: Extracellular matrix proteins help create the structural and signalling context tissue organization requires.
Cellular communication: Secreted proteins and vesicle-associated cargo help mediate cell-to-cell and cell-to-matrix signalling.
Redox resilience: Oxidative-stress enzymes support the biological framework of recovery and cellular stress adaptation.
Remodeling biology: Matrix-remodeling proteins help regulate the balance between tissue breakdown, rebuilding and maturation.

Comparison

Not just exosomes. A broader secretome platform.

Exosomes are extracellular vesicles involved in cell-to-cell communication, and their biological relevance is significant. But a purified exosome product represents one fraction of the cellular secretome.

Feature	Exosome-only product	PEXT CM
Biological nature	Cell-free vesicle-focused fraction	Cell-free whole-secretome platform
Main content	Extracellular vesicles and vesicle cargo	Soluble proteins, ECM proteins, redox enzymes, immune-related proteins and EV-associated cargo
Biological logic	Vesicle-mediated signalling	Broad microenvironment modulation
Main advantage	Refined and signal-focused	Broader and more biologically holistic
Positioning	Targeted nano-biologic	Whole-secretome regenerative platform

Shared source

Human umbilical cord
Wharton's jelly MSC
Controlled culture

Both products come from the same selected source cells. What separates them is how much of what those cells released is kept.

Purified exosomes

Vesicle fraction

Contains

Extracellular vesicles
Vesicle cargo: proteins, lipids, miRNA, mRNA

Character: HomogeneousStandardized dosingExtended stability

Result

Specific signalling, dose-dependent

Targeted cellular therapy

PEXT CM

Whole secretome

Contains

Everything in the vesicle fraction, plus:
Free growth factors: VEGF, TGF-β, HGF, bFGF
Free cytokines
Essential amino acids
Antioxidants and vitamins

Character: Full secretomeEntourage (synergy) effectImmediate response

Result

Broad microenvironment modulation

Holistic regeneration and tissue nutrition

Purified exosomes and conditioned media, from the same Wharton’s jelly source. Particle fields are schematic.Fig. 02

Composition

Inside PEXT CM

Proteomic profiling reveals a secretome signature especially enriched in extracellular matrix biology, collagen networks, basement membrane support, redox enzymes, immune-related mediators and EV-associated cargo.

Content layer	Representative components	Biological meaning
01Whole-secretome proteome	1,205 identified proteins; 1,092 supported by ≥2 unique peptides	Broad, cell-free secretome profile with strong analytical depth
02Extracellular matrix / ECM proteins	FN1, COL1A1, COL1A2, COL3A1, COL5A1/2, COL6A1/2/3, COL12A1, FBN1, SPARC, POSTN	Tissue scaffold biology, cell adhesion, migration and dermal matrix organization
03Basement membrane & barrier support	HSPG2, LAMA1/2/4/5, LAMB1, LAMC1, NID1/2, AGRN, COL4A2, COL7A1	Re-epithelialization, dermal–epidermal junction support and barrier repair
04Proteoglycan & growth-factor reservoir	HSPG2, AGRN, IGFBP3/4/5/6/7, LTBP1/2/3/4	Signal localization, growth-factor availability and ECM-associated paracrine support
05Growth-factor / angiogenic / TGF–IGF axis	VEGFA, VEGFC, HGF, FGF7, PDGFC/D, IGF2, TGFB1/2, ANGPT1, ANGPTL2/4, THBS1/2	Regenerative signalling, angiogenic balance and epithelial / fibroblast support
06ECM remodeling enzymes & inhibitors	MMP2, MMP1, MMP14, MMP19, TIMP1, TIMP2, LOX, LOXL1/2, PLOD1/2/3, QSOX1, PXDN	Controlled matrix renewal, collagen processing and tissue remodeling
07Redox / glutathione / oxidative-stress system	GSS, GSR, GCLC, GSTP1, GSTO1, PRDX1–6, TXN, TXNRD1, SOD1/2/3, CAT, G6PD, IDH1, ME1	Oxidative-stress buffering and redox resilience
08Immune / complement / inflammatory modulation	C3, C4A/B, CFH, CFI, CFB, CD55, CD59, IL6, CCL2, CCL5, CXCL12, LGALS1/3, ANXA1/2	Inflammatory microenvironment modulation and recovery-phase signalling
09EV / exosome-associated cargo signature	CD9, CD63, CD81, TSG101, PDCD6IP/ALIX, SDCBP, HSPA8, HSP90, annexins, Rab proteins	Vesicle-associated signalling within a broader whole-secretome platform
10Matrix–cell communication proteins	PLEC, FLNA, MSN, EZR, RDX, ACTB	Cell–matrix communication, migration and mechanotransduction

Representative components shown; not a full composition list.

PEXT CM is not an exosome-only product. It is a proteomically characterized whole-secretome platform.

Inside PEXT CM: the proteomic signature summarized as 1,205 identified proteins, 507 ECM-annotated proteins, 33 redox enzymes and 29 EV cargo markers, with the ten content layers tabulated. — The same composition as a single reference plate.Fig. 03

A more practical cell-free regenerative platform

MSCs, SVF, exosomes and CM all belong to the regenerative biologics landscape, but they are not the same thing.

MSCs

Live-cell regenerative therapy

The most biologically flexible category, and the highest manufacturing, viability, safety and regulatory burden.

SVF

Heterogeneous adipose-derived cell mixture

Practical and often same-day, but patient-to-patient variability is significant and standardization is difficult.

Exosomes

Cell-free vesicle-based signalling product

Refined and attractive, but identity, purity, dose and potency are difficult to define, and the term is over-used.

Cell-free whole-secretome platform

Broader than exosomes, more controlled than SVF, more practical than live-cell therapy, provided it is characterized.

Broader than exosomes. More controlled than SVF. More practical than live-cell MSC therapy.

Responsible innovation

What PEXT CM may and may not be described as

The regenerative field is evolving rapidly, and with that comes the need for clarity and discipline. PEXT CM is under development. Its focus is the biological support of tissue-repair microenvironments and recovery-phase signalling.

Full regulatory position

May be described as

A cell-free whole-secretome platform
A proteomically characterized conditioned media product
A regenerative microenvironment support platform
A potential adjunctive platform for tissue-repair biology
A research and clinician-directed regenerative technology

Must not be described as

A cancer treatment
A cancer-prevention product
A guaranteed longevity therapy
A cure for chronic disease
A replacement for approved medical care

Not just exosomes. Not live cells. Not a single growth factor.

A whole-secretome platform for regenerative microenvironment support.

Request the PEXT CM dossier Potential applications