Product Details

Uniprot No.

Target Names

Alternative Names

Acetaldehyde dehydrogenase 1 antibody; AHD2 antibody; AL1A1_HUMAN antibody; ALDC antibody; Aldehyde dehydrogenase 1 family member A1 antibody; Aldehyde dehydrogenase 1 soluble antibody; Aldehyde dehydrogenase 1A1 antibody; Aldehyde dehydrogenase antibody; Aldehyde dehydrogenase cytosolic antibody; Aldehyde dehydrogenase family 1 member A1 antibody; Aldehyde dehydrogenase liver cytosolic antibody; ALDH 1 antibody; ALDH 1A1 antibody; ALDH class 1 antibody; ALDH; liver cytosolic antibody; ALDH-E1 antibody; ALDH1 A1 antibody; ALDH1 antibody; ALDH11 antibody; ALDH1A1 antibody; ALHDII antibody; cytosolic antibody; epididymis luminal protein 12 antibody; epididymis luminal protein 9 antibody; epididymis secretory sperm binding protein Li 53e antibody; HEL-S-53e antibody; MGC2318 antibody; PUMB1 antibody; RALDH 1 antibody; RalDH1 antibody; Retinal dehydrogenase 1 antibody

Species Reactivity

Human

Immunogen

A synthesized peptide derived from human ALDH1A1

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

2G8

Purification Method

Affinity-chromatography

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Rabbit IgG in 10mM phosphate buffered saline , pH 7.4, 150mM sodium chloride, 0.05% BSA, 0.02% sodium azide and 50% glycerol.

Form

Liquid

Tested Applications

ELISA, IHC

Recommended Dilution

Application	Recommended Dilution
IHC	1:50-1:200

Protocols

ELISA Protocol
Immunohistochemistry (IHC) Protocol

Troubleshooting and FAQs

Antibody FAQs

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Description

ALDH1A1 (Aldehyde Dehydrogenase 1 Family Member A1) serves as a critical cytosolic enzyme responsible for oxidizing both retinal and acetaldehyde, playing essential roles in retinoic acid biosynthesis and ethanol metabolism. Beyond its metabolic functions, ALDH1A1 has emerged as a widely recognized marker for cancer stem cells across multiple tumor types, making it a valuable target for researchers investigating tumor heterogeneity, treatment resistance, and stem cell biology.

This recombinant monoclonal antibody, generated against a synthetic peptide derived from human ALDH1A1, offers the reproducibility and consistency that demanding research applications require. Because the antibody sequence is defined and produced recombinantly, you can expect uniform performance across experiments and between lots, eliminating the variability that can complicate longitudinal studies or multi-site collaborations. The rabbit IgG format, purified by affinity chromatography, ensures high specificity for your target.

Validation in immunohistochemistry demonstrates reliable detection in formalin-fixed, paraffin-embedded human tissues. Testing in human liver cancer tissue and human stomach tissue at 1:100 dilution using citrate buffer antigen retrieval confirms the antibody's utility for examining ALDH1A1 expression patterns in both normal and pathological contexts. The recommended working range of 1:50 to 1:200 provides flexibility for optimization across different tissue types and detection systems. Additional validation for ELISA applications extends the antibody's utility for quantitative studies.

Whether you are characterizing cancer stem cell populations, investigating retinoid signaling pathways, or exploring aldehyde metabolism in hepatic tissues, this recombinant antibody provides a dependable tool for advancing your research with confidence in experimental reproducibility.

Usage

For Research Use Only. Not for use in diagnostic or therapeutic procedures.

Target Background

Function

Cytosolic dehydrogenase that catalyzes the irreversible oxidation of a wide range of aldehydes to their corresponding carboxylic acid. Functions downstream of retinol dehydrogenases and catalyzes the oxidation of retinaldehyde into retinoic acid, the second step in the oxidation of retinol/vitamin A into retinoic acid. This pathway is crucial to control the levels of retinol and retinoic acid, two important molecules which excess can be teratogenic and cytotoxic. Also oxidizes aldehydes resulting from lipid peroxidation like (E)-4-hydroxynon-2-enal/HNE, malonaldehyde and hexanal that form protein adducts and are highly cytotoxic. By participating for instance to the clearance of (E)-4-hydroxynon-2-enal/HNE in the lens epithelium prevents the formation of HNE-protein adducts and lens opacification. Functions also downstream of fructosamine-3-kinase in the fructosamine degradation pathway by catalyzing the oxidation of 3-deoxyglucosone, the carbohydrate product of fructosamine 3-phosphate decomposition, which is itself a potent glycating agent that may react with lysine and arginine side-chains of proteins. Has also an aminobutyraldehyde dehydrogenase activity and is probably part of an alternative pathway for the biosynthesis of GABA/4-aminobutanoate in midbrain, thereby playing a role in GABAergic synaptic transmission.

Gene References into Functions

ALDH expression in decidual mesenchymal stem cells is required for cellular resistance to oxidative stress. PMID: 28205523
NGFR and ALDH1A1+ cells are lost during tumourigenesis PMID: 29891189
These data revealed crucial roles of ALDH(-) cancer stem cell in Papillary thyroid carcinoma biology and suggested that cancer stem cell subpopulations function cooperatively to control Papillary thyroid carcinoma initiation and progression. PMID: 29274322
ALDH1 and tumor infiltrating lymphocytes as predictors for neoadjuvant chemotherapy response in breast cancer PMID: 29685462
the expression of the ALDH1A1 protein in colorectal cancer (CRC) tissues was significantly associated with the presence of lymph node metastases and might be a potential prognostic marker in patients with CRC. PMID: 29748529
High ALDH1A1 expression may be a prognostic indicator of survival in patients with gastric neuroendocrine carcinoma PMID: 29103772
In this review, we elevated the role of ALDH to be a potential marker to define and distinguish hematopoietic stem cells and leukemia stem cells and its importance in prognosis and target therapy in AML patients PMID: 29516013
Quercetin suppressed breast cancer stem cell proliferation, self-renewal, and invasiveness. It also lowered the expression levels of proteins related to tumorigenesis and cancer progression, such as aldehyde dehydrogenase 1A1, C-X-C chemokine receptor type 4, mucin 1, and epithelial cell adhesion molecules. PMID: 29353288
Basing on the available evidence, this meta-analysis showed that high levels of ALDH1 expression correlate with worse OS and PFS in ovarian cancer patients. PMID: 29753392
Data suggested that ALDH1A1 may be an independent prognostic indicator and a new molecular biomarker for diagnosis in B-cell non-Hodgkin's lymphoma. PMID: 29399699
findings suggested that ALDH1 played an important role in treatment response and the tumor-promoting microenvironment in OSCC PMID: 28939082
NFATc2 enhances tumor-initiating phenotypes through the NFATc2/SOX2/ ALDH1A1 axis in lung adenocarcinoma. PMID: 28737489
significant association between ALDH1A1 expressions with Gleason score indicates the potential role of this protein in PCa tumorigenesis and aggressive behavior; therefore, this cancer stem cell marker can be used as a promising candidate for targeted therapy of PCa, especially those with high Gleason score PMID: 26894647
this study identified TAZ as a novel inducer of lung cancer stem cells and the first transcriptional activator of the stem cell marker ALDH1A1 PMID: 28415606
these findings indicate that ALDH1 can be prognosis prediction markers for urinary tract carcinomas PMID: 28418868
Circulating tumor cells expressing cytokeratin and tumor-initiating cell markers, including ALDH, CD133, and CD44, were identified in patients with pancreatic adenocarcinoma. These TIC-like CTCs were associated with poor prognosis after surgical resection and with an increased incidence of tumor recurrence PMID: 27789528
approximately 25% of all acute myeloid leukemias expressed low or undetectable levels of ALDH1A1 and this ALDH1A1(-) subset of leukemias correlates with good prognosis cytogenetics PMID: 28280079
These findings suggest that ALDH1 expression in malignant melanoma has a favorable effect on patient survival PMID: 28106104
disulfiram/copper complex targets ALDH1A1 to inhibit non-small cell lung cancer recurrence driven by ALDH-positive cancer stem cells PMID: 27542268
Mesenchymal stem cells selected for ALDH(hi) demonstrated enhanced proangiogenic secretory functions and represent a purified MSC subset amenable for vascular regenerative applications. PMID: 28295901
ALDH appears to be involved in the interaction between lung and Osteosarcoma (OS) cells, and ALP may be a valuable biomarker for monitoring functional OS changes during metastasis. PMID: 28122543
CD44 and ALDH are the most specific biomarkers to detect and isolate tumorigenic and chemoresistant gastric CSCs in noncardia gastric carcinomas independently of the histologic classification of the tumor. PMID: 27620279
Low expression level of ALDH1A1 is associated with prostate cancer. PMID: 26934553
Collectively, this study illustrates the interplay between ALDH(high) CSCLs and EOC invasion, and offers a novel application target for the EOC oncotherapy. PMID: 29170132
Findigs suggest that aldehyde dehydrogenase 1 (ALDH1) played an important role in tumor aggressiveness and associated with a tumor-promoting microenvironment in esophageal cancer. PMID: 28888039
These results suggested that tumor-secreting factor increases ALDH(high) TEC populations that are resistant to 5-FU. Therefore, ALDH(high) TEC in tumor blood vessels might be an important target to overcome or prevent drug resistance. PMID: 28851003
Results demonstrate that EZH2 and ALDH1 proteins are expressed in the stromal component of phyllodes tumors. PMID: 27290698
High ALDH1A1 expression is associated with cervical cancer. PMID: 28449663
Study shows that BPA induces ALDH1 expression in MCF-7 Cells and increases mammosphere size. PMID: 28244015
High ALDH expression is associated with Prostate Cancer. PMID: 28870918
High ALDH1 expression is associated with endometrial cancer. PMID: 28604744
A central role of Aurora kinase A (AURKA) in promoting Epithelial-to-mesenchymal transition and cancer stem cell phenotypes via ALDH1A1. PMID: 28193222
ALDH1A1 modulates the production of ROS by anti-cancer agents such as paclitaxel and diminishes their efficacy. PMID: 28756208
High expression of ALDH1 is associated with non-small cell lung cancer. PMID: 27832750
NOR1 suppresses cancer stem-like cell properties in nasopharyngeal carcinoma cells by inhibiting the AKT-GSK-3beta-Wnt/beta-catenin-ALDH1A1 signaling circuit. PMID: 27891591
FBLN-3 promoter region was highly methylated in some pancreatic cancer cell lines. FBLN-3 inhibited c-MET activation and expression and reduced cellular level of ALDH1. PMID: 25451256
ALDH1A1 silencing induced sensitivity in the cisplatin resistant head and neck cancer cell line In Vitro. PMID: 27380877
Among patients with ER-positive/HER2-negative breast cancer, ALDH1 expression was more common in those with early recurrence, and this expression was found to be associated with a more aggressive breast cancer phenotype than that in the patients without recurrence. PMID: 27368476
We demonstrate the utility of this assay by generating dose-response curves on a comprehensive set of prior art inhibitors as well as hundreds of ALDH1A1 inhibitors synthesized in house. Finally, we established a screening paradigm using a pair of cell lines with low and high ALDH1A1 expression, respectively, to uncover novel cell-active ALDH1A1-specific inhibitors from a collection of over 1,000 small molecules. PMID: 28129349
The expression of CD133, but not ALDHA1A, was significantly associated with poorer overall survival (p<0.0001) and shorter disease-free interval (DFI) (p<0.0001) in lung adenocarcinoma PMID: 28476825
Results suggest that ALDH1 expression correlates with aggressive phenotypes, and that high ALDH1 expression predicts a poor outcome in breast cancer. PMID: 28640095
ALDH1A1 and IGFBP1 are differentially overexpressed in CLM and may play a dual role, functioning as both tumor suppressors and metastasis promoters in CRC PMID: 27152521
CD44+/24- and ALDH1-positive rates in primary tumors differed according to intrinsic subtype. ER-positive patients with CD44+/24- tumors had significantly longer disease-free-survival than all other ER-positive patients PMID: 27768764
prognostic indicator of survival in triple negative breast cancer PMID: 28383433
ALDH1 positivity is associated with poor prognosis of cervical carcinoma, and may be an independent predictor of prognosis. PMID: 24827824
High ALDH1A1 expression is associated with bladder cancer. PMID: 28184944
Results indicate that ALDH1A1 is associated with cisplatin resistance in human lung adenocarcinoma cell line A549/DDP cells, and that activation of the PI3K/AKT signal pathway may be the responsible mechanism. PMID: 27813328
We ascertained the presence of strong association between ALDH1A1 expression and both histological subtype & tumor grade of non-small cell lung cancers. We report a fascinating finding; ALDH1A1 heterogeneity within adenocarcinoma can be mapped to its histological patterns. PMID: 26907783
Whole-tissue is better than TMA for the detection of ALDH1A1 nuclear staining in colorectal carcinoma patients, and nuclear expression is associated with a better outcome. Cytoplasmic expression is not a suitable prognostic marker of colorectal carcinoma. PMID: 27461829
Data support a crucial role of Notch3 in the increase of stem-like property in NSCLC cells that might be associated with upregulation of ALDH1A1 and CD44 and activation of autophagy. PMID: 27035162

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Subcellular Location

Cytoplasm, cytosol. Cell projection, axon.

Protein Families

Aldehyde dehydrogenase family

Tissue Specificity

Expressed by erythrocytes (at protein level).

Database Links

HGNC: 402

OMIM: 100640

KEGG: hsa:216

STRING: 9606.ENSP00000297785

UniGene: Hs.76392

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Code	CSB-RA926100A0HU
Size	US$210
	Order now
Image	IHC image of CSB-RA926100A0HU diluted at 1:100 and staining in paraffin-embedded human liver cancer performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. IHC image of CSB-RA926100A0HU diluted at 1:100 and staining in paraffin-embedded human stomach tissue performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB.
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ALDH1A1 Recombinant Monoclonal Antibody

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Target Background