PX1 Research provides research-grade Bronchogen (Ala-Glu-Asp-Leu) synthesized specifically for in vitro assays, epithelial dynamics, and host cell interaction studies. Every lot undergoes rigorous analytical validation, including RP-HPLC purity assessment and mass spectrometry, ensuring reliable experimental consistency for laboratory investigators.
PX1 Research provides research-grade Bronchogen (Ala-Glu-Asp-Leu) synthesized specifically for in vitro assays, epithelial dynamics, and host cell interaction studies. Every lot undergoes rigorous analytical validation, including RP-HPLC purity assessment and mass spectrometry, ensuring reliable experimental consistency for laboratory investigators.
A high-quality Bronchogen host interactions supplier provides research-grade Ala-Glu-Asp-Leu tetrapeptide manufactured under strict quality standards with third-party analytical verification. PX1 Research supplies high-purity Bronchogen (≥98% purity verified via RP-HPLC and ESI-MS) tailored for in vitro cell culture, host-pathogen assays, and preclinical respiratory epithelial research.
When designing host-pathogen or host-tissue interaction assays, laboratory investigators require chemical consistency, precise molecular weight confirmation, and baseline endotoxin screening. Substandard research compounds introduce cellular toxicity artifacts and non-reproducible gene expression profiles. PX1 Research addresses these critical experimental parameters by supplying domestic, laboratory-ready peptides supported by transparent batch-level documentation across our complete all peptides catalog.
Bronchogen is a synthetic short bioregulatory peptide composed of four amino acid residues: L-alanyl-L-glutamyl-L-aspartyl-L-leucine (sequence: Ala-Glu-Asp-Leu; molecular formula: C18H29N5O9). Belonging to the class of low-molecular-weight peptide bioregulators initially conceptualized in peptide gerontology, its concise primary sequence allows for unique conformational flexibility and binding kinetics within nuclear and cell-surface microenvironments.
In structural biology models, the acidic side chains of glutamic acid and aspartic acid within the sequence grant the peptide a net negative charge at physiological pH. This specific electrostatic profile facilitates non-covalent interactions with basic histone tails and cationic motifs of target cellular proteins. Researchers evaluating research peptides for nuclear transport and gene regulatory mechanisms frequently study Bronchogen due to its capacity to cross cellular membranes without requiring complex vehicle delivery systems in vitro.
Because small alterations in peptide sequences can drastically alter ligand-binding affinities, analytical precision during solid-phase peptide synthesis (SPPS) is essential. PX1 Research enforces strict chain-assembly validation during synthesis, preventing truncated or deletion-sequence impurities from contaminating final research lots.
Preclinical studies suggest that Bronchogen modulates gene expression patterns associated with bronchial epithelial cell differentiation, mucociliary clearance mechanisms, and extracellular matrix remodeling. In vitro models utilizing primary human bronchial epithelial cells (HBECs) demonstrate that exposure to Bronchogen alters transcriptomic profiles, particularly downstream pathways governing cytoprotection and inflammatory signaling responses.
In host-microbe interaction research, investigators examine how short bioregulatory peptides influence the expression of epithelial cell adhesion molecules and endogenous antimicrobial peptides. In vitro assays reveal that Bronchogen treatment can influence local cytokine secretion patterns (such as IL-6 and IL-8) following challenge with lipopolysaccharide (LPS) or pathogenic antigens, providing a quantitative baseline for evaluating host tissue resilience.
Furthermore, chromatin immunoprecipitation and fluorescence microscopy data indicate that Bronchogen site-specifically binds to DNA promoter regions. This nuclear localization suggests a direct epigenetic mechanism, wherein the peptide destabilizes localized nucleosome structures to promote transcriptor access to genes involved in tissue repair and homeostatic maintenance.
To obtain valid scientific data in cellular and molecular biology assays, primary researchers must partner with vendors who maintain rigorous batch validation protocols. In host-cell interface models, subtle impurities such as residual trifluoroacetic acid (TFA), heavy metals, or endotoxins can alter cellular viability, misrepresenting peptide mechanism of action.
A qualified supplier must provide comprehensive analytical documentation for every lot. Key verification metrics include reverse-phase high-performance liquid chromatography (RP-HPLC) to establish chemical purity, matrix-assisted laser desorption/ionization (MALDI-TOF) or electrospray ionization mass spectrometry (ESI-MS) to confirm exact molecular weight, and chromogenic LAL assays to verify low endotoxin thresholds (<0.01 EU/mg).
PX1 Research maintains these rigorous parameters by processing compounds in state-of-the-art facilities, storing all stock under controlled cryogenic conditions, and publishing full Certificate of Analysis (COA) documentation for every lot available on our product library.
When designing comparative host-tissue interaction panels, researchers frequently benchmark Bronchogen against other synthetic bioregulatory short peptides. Understanding the distinct structural profiles and cellular target specificities across this class enables investigators to select the precise peptide controls for their specific tissue assays.
For instance, while Bronchogen (Ala-Glu-Asp-Leu) targets pulmonary and bronchial epithelial cell lines, Chonluten (Glu-Asp-Gly) is another short peptide studied primarily for its tissue-specific regulatory effects on lung parenchyma and immune cell subsets. Similarly, researchers comparing generalized cell-mediated immune modulation often analyze Vilon (Lys-Glu), a dipeptide investigated for immunomodulatory and chromatin-modifying properties in splenocytes, while Epitalon (Ala-Glu-Asp-Gly) is selected for comparative studies focusing on telomerase activity and systemic cellular senescence models.
Proper reconstitution and handling protocols are vital to maintain peptide integrity and prevent chemical degradation during laboratory workflows. Bronchogen is supplied as a lyophilized (freeze-dried) powder packaged under argon gas to prevent atmospheric oxidation.
For standard cell culture and host interaction assays, the lyophilized cake should be reconstituted using sterile, cell-culture grade water or phosphate-buffered saline (PBS, pH 7.4). If long-term stock solutions are required, reconstituting in sterile buffer followed by aliquoting into single-use polypropylene microtubes prevents repeated freeze-thaw cycles, which can induce peptide cleavage or aggregation.
Lyophilized vials should be stored at -20°C upon receipt, where they remain stable for up to 24 months. Reconstituted aqueous solutions are stable at 4°C for short-term experimental windows (up to 7 days) or at -80°C for extended storage (up to 6 months). Researchers are encouraged to review complete handling parameters within our dedicated research hub.
In modern cell biology laboratories, Bronchogen is deployed across several primary assay architectures designed to map host cell behavior under controlled stress or infection parameters:
1. **Epithelial Barrier Integrity Assays:** Utilizing Transwell permeable supports to measure Transepithelial Electrical Resistance (TEER) across primary bronchial monolayers treated with Bronchogen prior to viral or bacterial antigen exposure. 2. **Transcriptomic & Epigenetic Profiling:** Performing RNA-Seq and ATAC-Seq on respiratory epithelial cell lysates to quantify changes in gene expression and chromatin accessibility post-peptide incubation. 3. **Host-Pathogen Adherence Studies:** Evaluating how peptide exposure alters pathogen binding to cell-surface receptors, such as viral spike proteins or bacterial pili, using high-content fluorescent imaging. 4. **Wound Healing & Migration Assays:** Employing scratch wound models to monitor the rate of epithelial cell migration and focal adhesion kinase (FAK) signaling dynamics over 24- to 48-hour periods.
PX1 Research operates as a premier supplier for domestic and international research institutions by maintaining strict USA-based synthesis and quality management standards. Every step of our manufacturing pipeline—from amino acid coupling to final lyophilization—occurs under stringent quality controls.
Our analytical verification relies on independent ISO 17025 accredited testing laboratories. Each lot of Bronchogen undergoes thorough characterization to guarantee sequence fidelity, absence of net residual solvents, and strict adherence to mass specifications. This multi-tier verification process ensures that researchers receive uniform materials that generate reproducible data points across independent experimental replicates.
PX1 Research accommodates the procurement needs of high-throughput screening projects, university laboratories, and contract research organizations (CROs). We provide flexible ordering structures ranging from single analytical vials to multi-gram bulk quantities engineered for large-scale cell screening campaigns.
Institutional buyers can establish direct accounts via our wholesale portal to access streamlined invoicing, dedicated account management, custom packaging parameters, and priority batch allocations. All orders ship directly from our domestic distribution centers in California and Arizona with expedited, temperature-controlled transit options to preserve compound stability.
What is Bronchogen, and what is its primary sequence?
Bronchogen is a synthetic bioregulatory tetrapeptide with the amino acid sequence Ala-Glu-Asp-Leu (L-alanyl-L-glutamyl-L-aspartyl-L-leucine). It is designed strictly for in vitro laboratory research and host interaction studies.
How does PX1 Research verify the purity of Bronchogen?
PX1 Research verifies Bronchogen purity using reverse-phase high-performance liquid chromatography (RP-HPLC) to confirm chemical purity (≥98%) and electrospray ionization mass spectrometry (ESI-MS) to verify exact molecular weight. Every batch is backed by a lot-specific Certificate of Analysis.
What are the recommended storage conditions for lyophilized Bronchogen?
Lyophilized Bronchogen should be stored at -20°C in a dry, dark environment upon receipt. Under these conditions, the unopen lyophilized peptide maintains stability for up to 24 months.
How should Bronchogen be reconstituted for cell culture assays?
Reconstitute Bronchogen under a sterile laminar flow hood using cell-culture grade sterile water or phosphate-buffered saline (PBS, pH 7.4). Gently swirl the vial until dissolved; avoid vigorous vortexing to prevent peptide shearing or foaming.
What endotoxin controls are performed on PX1 Bronchogen lots?
PX1 Research subjects every peptide lot to chromogenic Limulus Amebocyte Lysate (LAL) endotoxin testing. Our research-grade peptides maintain endotoxin levels below 0.01 EU/mg to prevent endotoxin-induced background noise in cellular assays.
What cellular models are most commonly used to study Bronchogen host interactions?
Investigators primarily use human primary bronchial epithelial cells (HBECs), Calu-3 lung adenocarcinoma lines, air-liquid interface (ALI) tissue cultures, and isolated rodent pulmonary tissue explants.
How does Bronchogen compare to Chonluten in preclinical research?
Both are short bioregulatory peptides targeting respiratory cell lines; however, Bronchogen is a tetrapeptide (Ala-Glu-Asp-Leu) primarily evaluated for bronchial epithelial interactions and chromatin binding, whereas Chonluten is a tripeptide (Glu-Asp-Gly) often studied in broader pulmonary inflammation models.
Can PX1 Research provide custom bulk quantities for high-throughput screening?
Yes. PX1 Research offers flexible bulk manufacturing and custom vialing for high-throughput screening programs and institutional research projects via our wholesale program.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.