hsp70 (R&D Systems)
Structured Review

Hsp70, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 20 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/MAB1663/Human%2FMouse%2FRat+HSP70%2FHSPA1A+Antibody/pmc12528137-87-9-11
Average 93 stars, based on 20 article reviews
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1) Product Images from "Dual roles of in situ generated HSP70 in antigen delivery and immunoregulation"
Article Title: Dual roles of in situ generated HSP70 in antigen delivery and immunoregulation
Journal: Frontiers in Immunology
doi: 10.3389/fimmu.2025.1638948
Figure Legend Snippet: RFA vigorously stimulates HSP70 synthesis in DCs. C57BL/6 mice were subjected to RFA treatment. Single-cell suspensions were prepared at different timepoints followed by staining with fluorescence-conjugated viability dye, anti-CD11c, and anti-F4/80 antibodies. Cells were then permeabilized followed by intracellular staining with fluorescence-conjugated anti-HSP70 antibodies. (A) Representative dot plots showing dynamic increase of percentage of HSP70+ cells in DCs, macrophages, and non-immune cells in the first 6 h after RFA treatment or non-treated skin (baseline). (B) Percentage of HSP70+ DCs, macrophages, and non-immune cells at different timepoints till 24 h n=4. Data are representative of two independent experiments with similar results.
Techniques Used: Staining, Fluorescence
Figure Legend Snippet: Separation of RFA-induced HSP70 from constitutively expressed HSc70. (A) Lateral back skin of WT and HSP70 KO mice were subjected to RFA or Sham treatment. RFA and Sham-treated skin (1×1 cm 2 ) was collected 18 h later, homogenized, and purified with ADP-Agarose column. Eluted samples were concentrated and adjusted to the same volume of 100 µl. The same volume (10 µl) of WT samples isolated from 4 pieces of skin, KO samples isolated from one piece of skin, and recombinant murine HSP70 were subjected to SDS-PAGE separation and silver staining. (B) WT (10 µl) and KO samples (30 µl), both purified from one piece of skin, and recombinant murine HSP70 were subjected to SDS-PAGE separation and western blotting analysis with anti-HSP70 antibodies (upper) or anti-HSc70 antibodies (lower). The volume of KO samples was increased for readiness detection of HSP70 if there was any. 1. Recombinant mouse HSP70; 2. Purified sample from RFA-treated WT skin; 3. Purified sample from Sham-treated WT skin; 4. Purified sample from RFA-treated HSP70 KO skin; 5. Purified sample from Sham-treated HSP70 KO skin. Full membrane pictures were shown in
Techniques Used: Purification, Isolation, Recombinant, SDS Page, Silver Staining, Western Blot, Membrane
Figure Legend Snippet: RFA stimulates HSP70 synthesis and extracellular release. (A, B) Lateral back skin (1.2×1.2 cm 2 ) of C57BL/6 mice was subjected to RFA or Sham treatment. Skin was dissected right after treatment and further cut into 1 mm wide slices for culture in 24-well plates. A small volume (100 µl) of medium was added to just cover the tissue. Culture medium was harvested 18 h later to measure HSP70 levels (A) . Skin was also harvested at the same time and homogenized in T-PER buffer for measurement of HSP70 levels (B) . (C, D) Lateral back skin (1.2×1.2 cm 2 ) of C57BL/6 mice was subjected to RFA or Sham treatment. Skin was then subjected to one pulse of AFL treatment at 5mJ energy and 10% coverage. Powder mannitol-coated reservoir patches were then topically applied to extract interstitial fluid via skin microchannels. Powder reservoir patches (C) and underneath skin (D) were harvested 24 h later for measurement of HSP70 levels. n=5 in A, B and n=6 in (C, D) Two-tailed student’s t-test was used to compare differences between groups. *, p<0.05; **, p<0.01. Data are representative of two independent experiments with similar results.
Techniques Used: Two Tailed Test
Figure Legend Snippet: Evidence of in situ HSP70/OVA association. Lateral back skin of WT or HSP70 KO mice was subjected to RFA or Sham treatment followed by ID injection of 1 µg OVA into RFA or Sham-treated skin. Skin was collected 6 h later. (A–C) Skin was subjected to cryo-sectioning and PLA analysis of HSP70/OVA binding. Representative HSP70/OVA PLA results in WT mice were shown in A . Quantitative analysis of HSP70/OVA PLA signals in randomly selected regions of 1.6 mm 2 in WT mice and HSP70 KO mice was shown in (B, C) , respectively. (D, E) Lateral back skin of WT and HSP70 KO mice (n=2) were exposed to RFA (left) or Sham treatment (right) followed by ID OVA injection. Skin was collected 6 h later and homogenized in RIPA buffer. The same amounts of total proteins were incubated with anti-OVA antibodies and then protein A/G agarose followed by centrifugation and washing. After boiling, IP samples and tissue lysates were subjected to SDS-PAGE and IB detection of HSP70 and OVA in WT (D) and HSP70 KO mice (E) . Intact membrane pictures were shown in
Techniques Used: In Situ, Injection, Binding Assay, Incubation, Centrifugation, SDS Page, Membrane, Two Tailed Test
Figure Legend Snippet: HSP70 contributes to RFA-enhanced antigen uptake in skin and draining LNs. WT and HSP70 KO were subjected to RFA or Sham treatment followed by ID injection of 2 µg AF647-OVA into RF or Sham-treated skin. Skin and draining LNs were dissected 20 h later followed by single-cell suspension preparation, immunostaining, and flow cytometry analysis. Gating strategies were shown in
Techniques Used: Injection, Suspension, Immunostaining, Flow Cytometry
Figure Legend Snippet: RFA-induced HSP70 lacks the ability to induce DC maturation. (A) The same skin cell samples in
Techniques Used: Expressing, Incubation, Control, Comparison
Figure Legend Snippet: HSP70 suppresses RFA-induced TLR4/IRAK/NFκB signaling. (A, B) WT and HSP70 KO mice were subjected to RFA or Sham treatment or ID injection of LPS or PBS. Skin was collected 6 h later in (A, B) IP and IB were conducted to evaluate TLR4/TIRAP binding (A) and IRAK4/IRAK1 binding in (B, C) . WT, HSP70 KO, MyD88 KO, TLR2 KO, and TLR4 KO mice were subjected to RFA or Sham treatment or ID injection of LPS. Skin was collected 2 h later. Cytosol and nuclear fractions were separated and nuclear fraction was analyzed by WB analysis to detect phosphorylated p65 using Lamin b1 as a loading control. (D) Skin IL-6 levels 6 h after RFA, Sham, or LPS treatment of lateral back skin of WT, HSP70 KO, TLR2 KO, TLR4 KO, and MyD88 KO mice. Two-way ANOVA with Fisher’s LSD test was used to compare differences between groups. n=4-6. *, p<0.05; **, p<0.01; ***, p<0.001. Original membrane pictures were shown in
Techniques Used: Injection, Binding Assay, Control, Membrane
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