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3 protocols using anti ldha

1

Chlorin e6-Mediated Photodynamic Therapy

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Chlorin e6 was purchased from J&K Scientific Ltd. (Beijing, China). Diclofenac, morpholin-4-yl-acetic acid hydrochloride, 1-(3-dimethylaminopropyl)-3 ethylcarbodiimide hydrochloride (EDC), 4-dimethylaminopyridine (DMAP) and trimethylamine (TEA) were purchased from Aladdin (Shanghai, China). Bilirubin and N,N′-diisopropylcarbodiimide (DIC) were purchased from Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). mPEG2k-NH2 and Fmoc-NH-PEG2k-NH2 were purchased from Ponsure Biotechnology (Shanghai, China). Cou-6 was obtained from Sigma–Aldrich (USA). DiD and DCFH-DA were obtained from Meilunbio (Dalian, China). The annexin V-fluoresceine isothiocyanate (FITC) apoptosis detection kit and calcium-AM were obtained from Yeason (Shanghai, China). Lactate detection kit and lactate dehydrogenase assay kit were obtained from Nanjing Jiancheng Bioengineering Institute (Naijing, China). Anti-HIF-1α antibody, Cy3 goat anti-rabbit IgG (H + L) and Alexa fluor 647 goat anti-rabbit IgG (H + L) secondary antibody were purchased from Abcam (Hongkong, China). Anti-LDHA and anti-CD31 antibody were purchased from Servicebio Company (Wuhan, China). Anti-LDHB and anti-c-MYC antibody were purchased from Proteintech (Wuhan, China). Anti-VEGFα and anti-angiopoietin-2 antibody were purchased from Abclonal Company (Wuhan, China).
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2

Immunohistochemical Analysis of LDHA Expression

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Paraffin‐embedded tissue sections underwent dewaxing, rehydration, and antigen retrieval using citrate buffer. We then quenched endogenous peroxidase activity and blocked nonspecific binding with hydrogen peroxide and serum. The slides were incubated with anti‐LDHA (1:200; Servicebio; Cat number: GB11342) antibody overnight at 4°C. This was followed by the application of a secondary antibody from goat anti‐rabbit (Beyotime), visualization with DAB, and hematoxylin counterstaining. The H score was calculated as previously described.
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3

Western Blot Analysis of Cellular Fractions

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PC cells were lysed using the RIPA lysis buffer (Beyotime, China; Cat number: P0013B), and supernatants were collected as total protein. The PM fraction of cells was isolated following the standard procedure of membrane and cytosol protein extraction kit (Beyotime; Cat number: P0033). The protein concentration was assessed using the BCA Protein Assay Reagent (Beyotime; Cat number: P0012S). Lysates were subjected to 10% SDS‐PAGE and transferred onto PVDF membranes. Following blocking with PBS containing 5% nonfat milk, membranes were incubated with the respective primary antibodies: anti‐IDO1 (1:5000; Proteintech, USA; Cat number: 66528‐1‐Ig), anti‐HK2 (1:1000; Servicebio, China; Cat number: GB111063), anti‐LDHA (1:2000; Servicebio; Cat number: GB11342), anti‐GLUT1 (1:1000; Servicebio; Cat number: GB113495), anti‐Na+/K+ ATPase (1:1000; Beyotime; Cat number: AF1864), anti‐Bax (1:800; Servicebio; Cat number: GB114122), anti‐Bcl‐2 (1:1000; ABclonal, China; Cat number: A19693), or anti‐β‐actin (1:5000; Abways Technology, China; Cat number: AB2001) antibodies. After incubation with an HRP‐conjugated anti‐mouse secondary antibody (Beyotime) or anti‐rabbit secondary antibody (Beyotime), the proteins were detected using ECL reagents (Thermo Fisher Scientific, USA) and immunoreactive signals were quantitatively assessed using densitometry.
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