Ciliate pheromones : primordial self-/nonself-recognition signals / Adriana Vallesi, Claudio Alimenti and Pierangelo Luporini -- Cell death pathways in an unconventional invertebrate model / Enzo Ottaviani and Davide Malagoli -- Immunotoxicology approaches in ecotoxicology : lessons from mollusks / Valerio Matozzo and François Gagné -- New aspects of earthworm innate immunity : novel molecules and old proteins with unexpected functions / Péter Engelmann, Yuya Hayashi, Kornélia Bodó and László Molnár -- Neuroprotection and immunity in the medicinal leech Hirudo medicinalis : what about microglia? / Jacopo Vizioli, Francesco Drago and Christophe Lefebvre -- Specificity of innate immunity in bivalves : a lesson from bacteria / Laura Canesi and Carla Pruzzo -- Immune-related signaling in mussel and bivalves / Paola Venier, Stefania Domeneghetti, Nidhi Sharma, Alberto Pallavicini and Marco Gerdol -- Crustacean immunity : the modulation of stress responses / Chiara Manfrin, Alberto Pallavicini, Slivia Battistella, Simonetta Lorenzon and Piero G. Giulianini -- How insects combat infections / Małgorzata Cytryńska, Iwona Wojda and Teresa Jakubowicz -- Aedes aegypti immune responses to dengue virus / Cole Schonhofer, Heather Coatsworth, Paola Caicedo, Clara Ocampo and Carl Lowenberger -- Protective responses in invertebrates / Magda de Eguileor, Annalisa Grimaldi and Gianluca Tettamanti -- Echinoderm antimicrobial peptides : the ancient arms of the deuterostome innate immune system / Vincenzo Arizza and Domenico Schillaci -- Inflammatory response of the ascidian Ciona intestinalis / Parrinello Nicolò, Cammarata Matteo, Parrinello Daniela and Vizzini Aiti -- Cytotoxic cells of compound ascidians / Nicola Franchi and Loriano Ballarin -- Fish transcriptomics / Francesco Buonocore and Giuseppe Scapoigliati -- Developmental biology of teleost lymphocytes / Luigi Abelli -- Cathelicidins : an ancient family of fish antimicrobial peptides / Marco Scocchi, Michela Furlan, Paola Venier and Alberto Pallavicini -- Evolution and immune function of fish lectins / Matteo Cammarata, Maria G. Parisi and Gerardo R. Vasta -- Teleost immunoglobulins / Maria R. Coscia, Stefano Giacomelli and Umberto Oreste -- Immunity and wound healing : regeneration or repair? / Antonella Franchini -- Marine mammal immunity toward environmental challenges / Annalaura Mancia.