ICMR- National Institute for Research in Reproductive Health ICMR-NIRRH (Accession no. 921);  ICMR- National Institute for Research in Reproductive Health ICMR-NIRRH-JRF;  ICMR- National Institute for Research in Reproductive Health ICMR-SRF;  Researchers Supporting Project (RSP-2020/26) King Saud University, Riyadh

Anika

Arroyo

Bhattacharyya

Biaoxue

Biovia

Bohonowych

Chen

Chern

Ciocca

Crouch

Csardi

Cultrara

Freiden

Ghosh

Hasegawa

Holmskov

Jakel

Janssen

Kalin

Kankavi

Kaur

Kishore

Klont

Krämer

Kumar

Llana

Mahajan

Mangogna

Meng

Misra

Nadesalingam

Nakatsuka

Ohya

Park

Philippova

Pierce

Piñero

Pootrakul

Pyrko

Rauschert

Reddy

Santos

Shan

Shiels

Shin

Shrive

Sokolowska

Szklarczyk

Thakur

Uhlen

Umeda

von Bredow

Wang

Yang

Frontiers in Immunology

English

Data Availability Statement: The datasets presented in this study can be found in online repositories. The names of the repositories and accession number(s) can be found in the article/Supplementary Material (https://www.frontiersin.org/articles/10.3389/fimmu.2020.600660/full#h11).Copyright © 2021 Thakur, Sathe, Kundu, Biswas, Gautam, Alkahtani, Idicula-Thomas, Sirdeshmukh, Kishore and Madan. Surfactant protein-D (SP-D), a member of the collectin family has been shown to induce apoptosis in cancer cells. SP-D is composed of an N-terminal collagen-like domain and a calcium-dependent carbohydrate recognition domain (CRD). Recently, we reported that a recombinant fragment of human SP-D (rfhSP-D), composed of homotrimeric CRD region, induced intrinsic apoptotic pathway in prostate cancer cells. Here, we analyzed the membrane interactome of rfhSP-D in an androgen-independent prostate cancer cell line, PC3, by high resolution mass spectrometry and identified 347 proteins. Computational analysis of PPI network of this interactome in the context of prostate cancer metastasis and apoptosis revealed Glucose Regulated Protein of 78 kDa (GRP78) as an important binding partner of rfhSP-D. Docking studies suggested that rfhSP-D (CRD) bound to the substrate-binding domain of glycosylated GRP78. This was further supported by the observations that human recombinant GRP78 interfered with the binding of rfhSP-D to anti-SP-D polyclonal antibodies; GRP78 also significantly inhibited the binding of recombinant full-length human SP-D with a monoclonal antibody specific to the CRD in a dose-dependent manner. We conclude that the interaction with rfhSP-D is likely to interfere with the pro-survival signaling of GRP78.ICMR- National Institute for Research in Reproductive Health ICMR-NIRRH (Accession no. 921);  ICMR- National Institute for Research in Reproductive Health ICMR-NIRRH-JRF;  ICMR- National Institute for Research in Reproductive Health ICMR-SRF;  Researchers Supporting Project (RSP-2020/26) King Saud University, Riyadh

Thakur, G

Sathe, G

Kundu, I

Biswas, B

Gautam, P

Alkahtani, S

Idicula-Thomas, S

Sirdeshmukh, R

Kishore, U

Madan, T

Brunel University Research Archive

Membrane interactome of a recombinant fragment of human Surfactant Protein D reveals GRP78 as a novel binding partner in PC3, a metastatic prostate cancer cell line

Crossref

Table_3.xlsx

Surfactant protein-D (SP-D), a member of the collectin family has been shown to induce apoptosis in cancer cells. SP-D is composed of an N-terminal collagen-like domain and a calcium-dependent carbohydrate recognition domain (CRD). Recently, we reported that a recombinant fragment of human SP-D (rfhSP-D), composed of homotrimeric CRD region, induced intrinsic apoptotic pathway in prostate cancer cells. Here, we analyzed the membrane interactome of rfhSP-D in an androgen-independent prostate cancer cell line, PC3, by high resolution mass spectrometry and identified 347 proteins. Computational analysis of PPI network of this interactome in the context of prostate cancer metastasis and apoptosis revealed Glucose Regulated Protein of 78 kDa (GRP78) as an important binding partner of rfhSP-D. Docking studies suggested that rfhSP-D (CRD) bound to the substrate-binding domain of glycosylated GRP78. This was further supported by the observations that human recombinant GRP78 interfered with the binding of rfhSP-D to anti-SP-D polyclonal antibodies; GRP78 also significantly inhibited the binding of recombinant full-length human SP-D with a monoclonal antibody specific to the CRD in a dose-dependent manner. We conclude that the interaction with rfhSP-D is likely to interfere with the pro-survival signaling of GRP78.</p

Thakur, Gargi

Sathe, Gajanan

Kundu, Indra

Biswas, Barnali

Gautam, Poonam

Alkahtani, Saad

Idicula-Thomas, Susan

Sirdeshmukh, Ravi

Kishore, Uday

Madan, Taruna

University of Dundee Online Publications

Membrane Interactome of a Recombinant Fragment of Human Surfactant Protein D Reveals GRP78 as a Novel Binding Partner in PC3, a Metastatic Prostate Cancer Cell Line

https://discovery.dundee.ac.uk/files/56706708/fimmu_11_600660.pdf

Membrane Interactome of a Recombinant Fragment of Human Surfactant Protein D Reveals GRP78 as a Novel Binding Partner in PC3, a Metastatic Prostate Cancer Cell Line

Abstract

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University of Dundee Online Publications