Novel Extracts from Callyspongia Siphonella and Negombata Magnifica Sponges from the Red Sea, Induced Antiproliferative and Proa

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Novel Extracts from Callyspongia Siphonella and Negombata Magnifica Sponges from the Red Sea, Induced Antiproliferative and Proa Egyptian Journal of Aquatic Biology & Fisheries Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt. ISSN 1110 – 6131 Vol. 24(7): 319 – 347 (2020) www.ejabf.journals.ekb.eg Novel extracts from Callyspongia siphonella and Negombata magnifica sponges from the Red Sea, induced antiproliferative and proapoptotic activity in HepG-2, MCF-7, and Caco-2 cancer cell lines Islam Rady1,2*, Mansour A.E. Bashar1 1. Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt. 2. Masonic Cancer Center, University of Minnesota, Minnesota, Minnesota, USA. * Corresponding Author: [email protected] _______________________________________________________________________________ ARTICLE INFO ABSTRACT Article History: Marine organisms derived extracts have been shown to exert multiple anti- Received: Sept. 21, 2020 cancer activities. Two marine sponge species; finger-sponge ―Negombata Accepted: Oct. 24, 2020 magnifica (Nm)‖ and tube-sponge ―Callyspongia siphonella (Cs)‖ were Online: Nov. 1, 2020 collected during summer 2020 from the Gulf of Aqaba (Red Sea, Egypt). Each _______________ sponge macerated with methylene chloride (CH2Cl2), ethyl acetate (C4H8O2), acetone (C H O), and chloroform (CHCl₃) separately into four different crude Keywords: 3 6 extracts for each sponge species and eight extracts as a total for both marine Sponges; species, where each extract was in vitro assessed for its antiproliferative and Callyspongia siphonella; proapoptotic activity in HepG-2, MCF7, and Caco-2 cancer cell lines. Cs- Negombata magnifica; CH Cl , Cs-C H O , Cs-C H O, Cs-CHCl , Nm-CH Cl , Nm-C H O , Nm- Red Sea; 2 2 4 8 2 3 6 3 2 2 4 8 2 C H O, and Nm-CHCl , each in a dose-dependent manner inhibited the growth Anticancer; 3 6 3 of HepG2 cancer cells within IC values 17.53, 11.18, 9.97, 19.21, 9.14, 10.94, Antiproliferation; 50 8.78, and 7.23 μg/ml, respectively, MCF-7 cancer cells within IC values of Apoptosis. 50 19.48, 15.34, 11.76, 13.62, 7.65, 6.18, 11.82, and 8.26 μg/ml, respectively, and Caco-2 cancer cells within IC50 values of 10.17, 14.87, 18.35, 17.12, 12.67, 9.27, 8.37, and 10.68 μg/ml, respectively. In addition, all extracts were found to induce apoptosis in HepG2, MCF-7, and Caco-2 cancer cells via an increase of proapoptotic protein Bax and caspase-3 and decrease of anti-apoptotic protein Bcl-2. Current data introducing multiple extracts from two marine sponges as promising sources for cancer therapeutic agent(s) to be further developed for cancer control outcome. INTRODUCTION Cancer is a group of diseases associated with abnormal cell growth with potentiality to invade or spread to other parts of the body (Rady et al., 2018). It is considered as one of the major ailments threatening the humankind (Rady et al., 2018a). The current available cancer statistics are indicating that the number of new cancer patients has been reached over 10 million cases associated with over 6 million deaths representing roughly 12% of worldwide mortality (Rady et al., 2017, 2018a). Moreover, over 20 million new cancer cases are anticipated to be diagnosed in the year 2025 (Zugazagoitia et al., 2016; Rady et al., 2017) and potentially will be increased to 21.7 million with about 13 million cancer deaths by the year 2030 (Torre et al., 2015; Rady et 320 Rady and Bashar (2020) al., 2017). In Egypt, according to national incidence rates and proportions, the crude incidence rates on the national level for all sites, excluding nonmelanoma skin cancer (C44) were 113.1/100,000 (both sexes), 115.7/100,000 (males), and 110.3/100,000 (females), where the age-standardized rates (world) were 166.6/100,000 (both sexes), 175.9/100,000 (males), and 157.0/100,000 (females) (Ibrahim et al., 2014). Those high rates of cancer morbidity and mortality are required more ways of cancer control, therapy or management where the current treatment modalities are mainly radiation-based therapy and chemotherapy (Rady et al., 2017, 2018), although their applicability to human is associated with toxic properties causing hair loss with some other serious adverse effects (Tsuda et al., 2004). Natural products have been used to help mankind sustain its health since the dawn of medicine (Moghadamtousi et al., 2015; Rady et al. 2017, 2018). Nowadays, just like in ancient times, utilization of complementary and alternative medicines is gaining more popularity as an important and promising strategy for human diseases prevention and therapy (Peter and Horvath, 2017; Rady et al., 2018). Marine natural products are regarded as a rich and renewable source for novel therapeutics (Jiménez, 2018). Marine derived bioactive compounds are attractive candidates for cancer therapy 50 years ago and in recent past there are like 3000 new marine compounds that have been assessed for their anticancer activity (Young et al., 2006). Beside the anticancer effects of marine organism constituents, a lot of modern studies suggested that some bioactive compounds isolated from marine organisms have been shown to exhibit anti-microbial, anti-fungal, anti-inflammatory, and other pharmacological activities (Venkateswara-Rao et al., 1998; Wali et al., 2019). Likewise, in clinical research, there are many marine anticancer bioactive compounds that have been isolated, characterized, identified, and preclinically assessed; now they are under clinical trials for human use (Wali et al., 2019). Marine fauna for instance sponges, echinoderms, mollusks, ascidians, and coral reefs are accounting for more than 90% of the total oceanic biomass where those organisms possess a variety of pharmacological bioactive compounds that can be used in drug discovery for cancer control (Franscesco, 1997). Likewise, a variety of bioactive metabolites and compounds have isolated from marine organisms were found to exert antitumor, antimicrobial, and anti-inflammatory (Shnit-Orland et al., 2008). El-Gamal et al. (2004) isolated five bioactive substances from CH2Cl2 extracts of Taiwan soft coral of Nephthea armata, which have showed significant cytotoxicity to human lung adenocarcinoma and human colon adenocarcinoma and mouse lymphocytic leukemia. In addition, the soft corals of the genus Xenia are rich in terpenoids and steroids since six sesquiterpenoids were isolated from CH2Cl2 extracts of the soft coral of Xenia peurto- galera that have founded to induce cytotoxicity against cancer cells (Duh et al., 2002). Also, lemnalol is a bioactive antitumor agent has been isolated from the Japanese soft coral Lemnalia sp. (Kikuchi et al., 1983). As part of research on the bioactive material from marine organisms, the Formosan soft coral Cespitularia hypotentaculata (family: Xeniidae) was studied because its CH2Cl2 extract showed significant cytotoxicity to human lung adenocarcinoma and human colon adenocarcinoma and mouse lymphocytic leukemia cells (Duh et al., 2002a). Moreover, two bicyclic cembranolides have been isolated from Sarcophyton sp. were found to exert cytotoxicity towards MCF7 cancer cells (Gross et al., 2004). Furthermore, among the groups of marine organisms, sponges are the most diverse and abundant, due to their soft bodies and sedentary lifestyles Novel extracts from Callyspongia siphonella and Negombata magnifica sponges 321 (Moitinho-Silva et al., 2014). Marine sponges (Phylum: Porifera) are a large phylum belongs to the animal Kingdom and regarded as prolific factories for bioactive natural products (Blunt et al., 2016, 2017, 2018). Therefore, sponges are suggested to provide a drug discovery for multiple diseases, such as cancer and viruses (Faulkner, 2000; Perdicaris et al., 2013). Red Sea is rich with sponges such as that of genus Negombata, which produce latrunculins that are known for their antimicrobial and antiviral activity (Eid et al., 2011). A variety of natural products from the marine sponges have been found to exhibit remarkable antitumor and anti-inflammatory activities (Edrada et al., 2002). Pawlik and McMurray (2020) have also confirmed that marine sponges are containing variety of natural products than any other marine phylum and those products have bioactivities including anticancer, antimicrobial, and anti-inflammatory activities, and are often applicable for medical use. Moreover, some of the most potential sponge-derived bioactive molecules include the anti-inflammatory compound manoalide from the palauan sponge Luffariella variabilis (De-Silva and Scheuer, 1980). Here, the current study assesses cytotoxicity, viability, and primary apoptotic effects of novel multiple extracts derived from two sponges Callyspongia siphonella and Negombata magnifica collected from Red Sea, Egypt in HepG2, MCF-7, and Caco-2 cancer cell lines. MATERIALS AND METHODS 1- Sampling and identification of specimens Specimens were collected during summer 2020 along Gulf of Aqaba at different depths by SCUBA diving. Immediately upon collection, the samples were cleaned with seawater and preserved in ice-box at -20°C. The taxonomy details were studied, and the two voucher specimens were deposited at Marine laboratory, Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt, with a registration number of MZ1047 and MZ1048. The identification of the specimens has been carefully checked based on Porifera morphological characters according to Systema Porifera (Hooper, 2000) associated with the most recent update undertaken in the World Porifera Database (Van Soest et al., 2008) and at the end the taxonomy is directed by Ruggiero et al. (2015). 2- Preparation of extracts The frozen sponge specimens were left to defrost and then broken down into small pieces. 10 g of macerated tissues were extracted by soaking in 50 ml of different four absolute solvents of (CH2Cl2, C4H8O2, C3H6O, and CHCl₃) for 24 h at room temperature. Extractions were repeated three times until no color was obtained to ensure complete extraction. The combined extracts were filtered through Whatman no.1 filter paper and dried at 40°C using a rotary evaporator. 3- Cell culture HepG-2, MCF7, and Caco-2 cancer cell lines and HFB-4 cell line (normal control cells) were obtained from American Type Culture Collection (Manassas, VA, USA) and (VACSERA Co., Cairo, Egypt).
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